A method, device and equipment for adjusting position

Abstract

The present invention discloses a method, device and equipment for alignment adjustment, which can still achieve high-precision alignment of a jig with a product under the condition of low hardware installation accuracy. The method includes: adjusting the position of the current jig so that the position has a fixed positional relationship with the COF product; controlling the jig to move to the initial position, and according to the pre-acquired movement offset of the jig, controlling each pin of the jig to be aligned with the center of each exposure point pad of the COF product; the initial position is the position of the jig determined according to the position of the pin that is located within the pad area and not aligned with the pad center; the number and distribution rules of each pin of the jig are the same as those of each pad; the movement offset is determined by the deviation value between the pin of the jig located at the initial position obtained through a microscope and the fiducial point on the corresponding pad of the COF product.

Description

Technical Field

[0001] The present invention relates to the technical field of display detection of semiconductor products and liquid crystal panels, and particularly relates to a method, device and equipment for alignment adjustment. Background Art

[0002] For the semiconductor industry or the liquid crystal panel display industry, generally in the automated production of chip - on - film (COF) products, before welding integrated circuit (IC) chips, the detection equipment will perform open - circuit / short - circuit detection on the COF products through electrical detection to confirm whether there are defective products. The premise of the detection is that the detection sensor needs to be aligned with the circuit. Therefore, an alignment adjustment device is required to align the fixture with the COF product, so as to finally align the sensor with the circuit. Among them, a number of tiny pin needles are loaded on the fixture, and the position distribution of the pin needles is consistent with the Pad distribution of the COF product. The electrical detection is mainly achieved by the contact between the tiny Pin needles and the circuit Pad, and the determination of circuit open - circuit and short - circuit is obtained by comparing the received voltage waveform with the discharge voltage waveform.

[0003] Currently, the commonly used alignment adjustment method is to simultaneously photograph the pin needles and the Pads through an alignment camera, directly read the coordinates of the pin needles and the Pad coordinates from the photographed images, and determine whether the positions of the fixture and the product are in the same position. When using the camera to obtain position information, if the accuracy of the camera cannot meet the alignment accuracy of the fixture and the product, since directly reading the coordinates of the pin needles and the pad coordinates by the camera will introduce the accuracy of the camera and the accuracy of the camera movement axis, and due to the influence of the accuracy of other mechanical structures for controlling the movement of the camera after the camera alignment, it cannot ensure the alignment of the pin and the pad. Then, the alignment of the fixture and the product cannot be accurately achieved, and thus the electrical detection cannot be accurately performed. Summary of the Invention

[0004] The present invention provides a method, device and equipment for alignment adjustment, which can still achieve high - precision alignment of the fixture and the product under the condition of low hardware installation accuracy, effectively improve the alignment accuracy, and accelerate the development cycle of the equipment.

[0005] In a first aspect, a method for alignment adjustment provided by an embodiment of the present invention includes:

[0006] Adjust the position of the current fixture so that the position has a fixed positional relationship with the COF product;

[0007] Control the fixture to move to the initial position, and according to the pre - obtained movement offset of the fixture, control each pin needle of the fixture to be aligned with the center of each exposure point pad of the COF product;

[0008] Wherein, the initial position is the position of the fixture determined according to the position of the pin that is located within the pad area and not aligned with the pad center; the number and distribution pattern of the pins of the fixture are the same as those of the respective pads; the movement offset is determined by the deviation value between the pin of the fixture at the initial position obtained through a microscope and the fiducial point on the corresponding pad of the COF product.

[0009] Since the movement offset in the embodiment of the present invention is measured by a microscope, it can perform alignment adjustment for smaller circuits, achieve high-precision alignment of the fixture, ultimately accelerate the product development cycle, reduce the design and manufacturing costs of the product, and reduce the difficulty of component processing, assembly, and debugging.

[0010] As an alternative implementation, the movement offset is determined in the following manner:

[0011] According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, wherein the distances are determined by a microscope, and the circuit position relationship between the pads corresponding to the at least two pins is fixed;

[0012] According to the total amounts of movement of the fixture in the X-axis, Y-axis, and θ-axis respectively, determine the movement offset of the fixture, wherein the θ-axis is used to represent the rotation angle of the fixture in the plane composed of the X-axis and Y-axis.

[0013] As an alternative implementation, the complete alignment of the at least two pins with the corresponding fiducial points is determined in the following manner:

[0014] If an alignment instruction is received, it is determined that the at least two pins are completely aligned with the corresponding fiducial points; and / or,

[0015] Based on the circuit loop formed by the complete alignment of the pins and pads, determine that the at least two pins are completely aligned with the corresponding fiducial points by measuring voltage or current.

[0016] As an alternative implementation, adjusting the position of the current fixture includes:

[0017] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current fixture so that the field-of-view centers of the CCD cameras are respectively aligned with at least two fiducial points on the COF product.

[0018] As an alternative implementation, determining the movement offset of the fixture according to the total amounts of movement of the fixture in the X-axis, Y-axis, and θ-axis respectively includes:

[0019] Determine the total amount of movement of the jig in the X-axis as the movement offset in the X-axis;

[0020] Determine the total amount of movement of the jig in the Y-axis as the movement offset in the Y-axis;

[0021] Determine the total amount of movement of the jig in the θ-axis as the movement offset in the θ-axis.

[0022] In a second aspect, an alignment adjustment device provided by an embodiment of the present invention includes:

[0023] An adjustment unit for adjusting the position of the current jig so that the position has a fixed positional relationship with the COF product;

[0024] A control unit for controlling the jig to move to an initial position and, according to the previously obtained movement offset of the jig, controlling each pin of the jig to be aligned with the center of each exposure point pad of the COF product; wherein, the initial position is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the center of the pad; the number and distribution law of each pin of the jig and each pad are the same; the movement offset is determined by the deviation value between the pin of the jig at the initial position obtained through a microscope and the fiducial point on the corresponding pad of the COF product.

[0025] As an optional implementation manner, the control unit is specifically used to determine the movement offset in the following manner:

[0026] According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, where the distances are determined by a microscope, and the line positional relationship between the pads corresponding to the at least two pins is fixed;

[0027] According to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, determine the movement offset of the jig, where the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and the Y-axis.

[0028] As an optional implementation manner, the control unit is specifically used to determine that the at least two pins are completely aligned with the corresponding fiducial points in the following manner:

[0029] If an alignment instruction is received, determine that the at least two pins are completely aligned with the corresponding fiducial points; and / or,

[0030] Based on the circuit loop formed by the complete alignment of the pin and the pad, it is determined whether the at least two pins are completely aligned with the corresponding fiducial points by measuring voltage or current.

[0031] As an alternative implementation, the adjustment unit is specifically configured to:

[0032] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current fixture, so that the centers of the fields of view of the CCD cameras are respectively aligned with at least two fiducial points on the COF product.

[0033] As an alternative implementation, the control unit is specifically configured to determine the movement offset of the fixture according to the total amounts of movement of the fixture in the X-axis, Y-axis, and θ-axis respectively:

[0034] Determine the total amount of movement of the fixture in the X-axis as the movement offset in the X-axis;

[0035] Determine the total amount of movement of the fixture in the Y-axis as the movement offset in the Y-axis;

[0036] Determine the total amount of movement of the fixture in the θ-axis as the movement offset in the θ-axis.

[0037] In a third aspect, an embodiment of the present invention further provides a registration adjustment device, which includes a processor and a memory. The memory is used to store a program executable by the processor, and the processor is used to read the program in the memory and execute the following steps:

[0038] Adjust the position of the current fixture so that the position has a fixed positional relationship with the COF product;

[0039] Control the fixture to move to the initial position, and according to the previously obtained movement offset of the fixture, control each pin of the fixture to be aligned with the center of each exposure point pad of the COF product; wherein, the initial position is the position of the fixture determined according to the position of the pin located within the pad area and not aligned with the center of the pad; the numbers and distribution rules of each pin of the fixture and each pad are the same;

[0040] The movement offset is determined by the deviation value between the pin of the fixture located at the initial position obtained through a microscope and the fiducial point on the corresponding pad of the COF product.

[0041] As an alternative implementation, the processor is specifically configured to determine the movement offset in the following manner:

[0042] Control the jig to move to a position where at least two pins are perfectly aligned with corresponding fiducial points according to the distances between at least two pins and the fiducial points on the corresponding at least two pads, where the distances are determined by a microscope, and the circuit position relationship between the pads corresponding to the at least two pins is fixed;

[0043] Determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, where the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and Y-axis.

[0044] As an alternative implementation, the processor is specifically configured to determine that the at least two pins are perfectly aligned with the corresponding fiducial points in the following manner:

[0045] If an alignment instruction is received, determine that the at least two pins are perfectly aligned with the corresponding fiducial points; and / or,

[0046] Based on the circuit loop formed by the perfect alignment of the pins and pads, determine that the at least two pins are perfectly aligned with the corresponding fiducial points by measuring voltage or current.

[0047] As an alternative implementation, the processor is specifically configured to:

[0048] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current jig so that the center of the field of view of the CCD cameras is respectively aligned with at least two fiducial points on the COF product.

[0049] As an alternative implementation, the processor is specifically configured to determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively:

[0050] Determine the total amount of movement of the jig in the X-axis as the movement offset in the X-axis;

[0051] Determine the total amount of movement of the jig in the Y-axis as the movement offset in the Y-axis;

[0052] Determine the total amount of movement of the jig in the θ-axis as the movement offset in the θ-axis.

[0053] In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, and when the program is executed by a processor, it is used to implement the steps of the method described in the first aspect above.

[0054] These aspects or other aspects of the present application will be more clearly understood in the following description of the embodiments. Description of the Drawings

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0056] Figure 1 Flowchart of a registration adjustment method provided by an embodiment of the present invention;

[0057] Figure 2 Schematic diagram of a COF product provided by an embodiment of the present invention;

[0058] Figure 3 Flowchart of a specific registration adjustment method provided by an embodiment of the present invention;

[0059] Figure 4 A registration adjustment device provided by an embodiment of the present invention;

[0060] Figure 5 A registration adjustment device provided by an embodiment of the present invention. Specific embodiments

[0061] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0062] The term "and / or" in the embodiments of the present invention describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0063] The application scenarios described in the embodiments of the present invention are for more clearly illustrating the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those of ordinary skill in the art know that with the emergence of new application scenarios, the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems. Among them, in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0064] Embodiment 1

[0065] Fixture alignment adjustment is a method for the inspection equipment to align the fixture with the product during the process of detecting circuit open / short in the product. In the automated production of COF products, the inspection equipment conducts product inspection before welding the IC chip, mainly for circuit open / short detection, to confirm whether there are defective products in the previous process equipment such as the exposure machine, cutting, and cleaning. The commonly used fixture alignment method is to achieve the high-precision installation position of the fixture by improving the precision of mechanical parts and structures, and then realize the alignment of the fixture and the product through the alignment function of the CCD image alignment system. If the alignment precision of the fixture and the product cannot be satisfied by the alignment function of the CCD image alignment system, it is necessary to improve the hardware precision of the equipment and repeatedly adjust the installation precision of the fixture (the installation precision of the fixture on the equipment) or the positioning precision of the COF product relative to the fixture (the positioning precision of the product relative to the fixture during the operation of the equipment) to achieve the purpose of aligning the fixture and the product.

[0066] In the semiconductor industry or the liquid crystal panel display industry, electrical inspection is generally used to detect circuit open / short. The fixture-based inspection usually applies an energized circuit at both ends of the circuit, with one end discharging and the other end receiving electricity. There are several tiny pin needles loaded on the fixture, and the position distribution of the pin needles is consistent with the Pad distribution of the product. Electrical inspection mainly determines circuit open / short by comparing the received voltage waveform with the discharged voltage waveform through the contact between the tiny Pin needles and the circuit Pad. However, as the circuit becomes finer and finer, the alignment requirements between the fixture and the product are getting higher and higher. The existing alignment adjustment technologies, such as directly reading the point coordinates or performing coordinate transformation through theoretical analysis, will use a variety of auxiliary mechanisms, resulting in more error accumulation and greater difficulty in achieving the installation and debugging precision.

[0067] To solve the above technical problems, the embodiments of the present invention provide an alignment adjustment method, which can be applied to detect circuits with smaller size and narrower pitch, improve the product yield, avoid waste in subsequent processes caused by defective products in the previous process, and also provide more circuit detection result suggestions for the previous process to improve process parameters.

[0068] As Figure 1 shown, the embodiments of the present invention provide an alignment adjustment method, which can be applied when the alignment precision requirements cannot be met by the CCD image alignment system. High-precision alignment adjustment can be achieved through the method of this embodiment. The implementation process of this method is as follows:

[0069] Step 100: Adjust the position of the current fixture so that the position has a fixed positional relationship with the COF product;

[0070] Step 101: Control the jig to move to the initial position, and according to the pre-acquired movement offset of the jig, control each pin of the jig to align with the center of each exposure point pad of the COF product; wherein, the initial position is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the pad center; the number and distribution law of each pin of the jig and each pad are the same, and the pins of the jig are designed and manufactured according to the distribution law of the pads of the COF product; the movement offset is determined by the deviation value between the pin of the jig at the initial position obtained through a microscope and the fiducial point on the corresponding pad of the COF product.

[0071] It should be noted that before controlling the jig to move to the initial position in the embodiment of the present invention, the position of the jig needs to be adjusted. Since the placement position of different products may have deviations each time, it is necessary to first adjust the position of the jig to fix the positional relationship between the jig and the COF product, and ensure that the movement offset of the jig relative to each product is fixed.

[0072] As an optional implementation manner, controlling each pin of the jig to align with the center of each exposure point pad of the COF product includes:

[0073] Control at least two pins of the jig to align one by one with the fiducial points of at least two pad centers of the COF product corresponding to the pins, wherein the line positional relationship between the at least two pads is fixed.

[0074] As an optional implementation manner, adjust the position of the current jig in the following manner:

[0075] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current jig, so that the field of view centers of the CCD cameras are respectively aligned with at least two fiducial points on the COF product.

[0076] Optionally, the initial position in the embodiment of the present invention is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the pad center; in implementation, the CCD image alignment system can be used to determine that the jig moves to the initial position and there is a deviation between the jig and the COF product. The specific implementation is as follows:

[0077] 1) If the COF product reaches the position to be detected, perform rough positioning;

[0078] Specifically, it is determined whether the fiducial points of the COF product are within the field of view of the CCD image alignment system (i.e., within the field of view of the CCD camera). If so, it is determined that the rough positioning accuracy meets the requirements and the following steps are executed; otherwise, rough positioning is performed.

[0079] Optionally, the fiducial points include at least two, and the line position relationship between any two fiducial points is fixed.

[0080] 2) Determine that the jig moves to the initial position through the CCD camera;

[0081] Specifically, the CCD image alignment system aligns the fiducial points of the COF product, and controls the jig having a preset fixed position relationship with the camera to move to the initial position, where the initial position is the position of the jig where the pin of the jig has a deviation from the fiducial point of the COF product.

[0082] It is easy to understand that since the number and distribution law of the pins of the jig and the pads of the COF product in this embodiment are the same; that is, the pins of the jig can correspond to the pads one by one.

[0083] Optionally, the COF product in the embodiment of the present invention includes at least two fiducial points, any one of the fiducial points is located on the pad, and the standard for the jig to be aligned with the COF product is determined by aligning the pins of the jig with the fiducial points. Since the number and distribution law of the pins of the jig and the pads of the COF product are the same, at least two pins need to be aligned with the fiducial points of the pads at the corresponding positions to indicate that the jig is aligned with the COF product.

[0084] As an optional implementation manner, the embodiment of the present invention determines the movement offset in the following manner:

[0085] 1) According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pins are completely aligned with the corresponding fiducial points;

[0086] Wherein the distances are determined through a microscope, and the line position relationship between the pads corresponding to the at least two pins is fixed;

[0087] It should be noted that the pad in this embodiment can be a circular area, and the complete alignment of the pin and the pad means that the pin is aligned with the center point of the pad, that is, the pin can contact the center point of the pad, and the fiducial point can be a cross, and the intersection point of the fiducial point is the center point of the pad.

[0088] During implementation, a microscope is used to view whether the pin imprints are aligned with the pads of the COF product. There are certain deviations when observing with the naked eye through the microscope, but after magnification by the microscope, the deviation values are within the controllable range. In one case, if the microscope cannot calculate and measure the deviation values, the deviation size is estimated visually and then the X-axis, Y-axis, and θ-axis are adjusted. It may take multiple controls to move the jig to align the jig pins with the COF product pads. In another case, if the microscope has a communication intelligent function and can directly read the deviation values, then according to the distances between the pin needles and the marked points on the corresponding pads directly obtained by the microscope, the jig is adjusted to align with the COF product.

[0089] Optionally, the following method is used to determine that the at least two pin needles are completely aligned with the corresponding marked points:

[0090] Method 1: If an alignment instruction is received, it is determined that the at least two pin needles are completely aligned with the corresponding marked points;

[0091] Among them, the alignment instruction is issued after it is determined by the microscope that the pin imprints of the at least two pin needles are completely aligned with the corresponding marked points, where the pin imprints are generated by the pin needles piercing the transparent material at the corresponding marked points.

[0092] Specifically, a flexible transparent tape can be adhered to the product, and the method of using the jig pins to pierce above the flexible transparent tape to produce certain pin imprints is used, and the microscope is used to observe whether the pin imprints are aligned with the COF product pads.

[0093] Method 2: Based on the circuit loop formed by the complete alignment of the pin needles and the pads, the at least two pin needles are determined to be completely aligned with the corresponding marked points by measuring voltage or current.

[0094] During implementation, based on the circuit loop formed by the complete alignment of the pin needles and the pads, if a voltage signal is applied at one end of the circuit and a signal related to the voltage signal is received at the other end, it is determined that the pin needles and the pads are completely aligned.

[0095] Method 3: If an alignment instruction is received and based on the circuit loop formed by the complete alignment of the pin needles and the pads, the at least two pin needles are determined to be completely aligned with the corresponding marked points by measuring voltage or current.

[0096] 2) Determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively;

[0097] Among them, the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and the Y-axis.

[0098] During implementation, if the jig moves x times along the X-axis, y times along the Y-axis, and θ times along the θ-axis, it is necessary to calculate the total amounts of movement along the X-axis, Y-axis, and θ-axis respectively, that is, the total distance of moving x times along the X-axis, the total distance of moving y times along the Y-axis, and the total angle of moving θ times along the θ-axis. Among them, x, y, and θ are integers or decimals greater than or equal to zero.

[0099] As an alternative implementation, according to the total amounts of movement of the jig along the X-axis, Y-axis, and θ-axis respectively, determine the movement offset of the jig, including:

[0100] Determine the total amount of movement of the jig along the X-axis as the movement offset along the X-axis;

[0101] Determine the total amount of movement of the jig along the Y-axis as the movement offset along the Y-axis;

[0102] Determine the total amount of movement of the jig along the θ-axis as the movement offset along the θ-axis.

[0103] As an alternative implementation, according to the distances between the at least two pin needles and the fiducial points on the corresponding at least two pads, control the jig to move to the position where the at least two pin needles are completely aligned with the corresponding fiducial points, including the following methods:

[0104] If the distance between the pin needle and the corresponding fiducial point is greater than the preset value, control the jig to move to the position where the at least two pin needles are completely aligned with the corresponding fiducial points according to the first step length. Among them, the jig can be controlled to move multiple times or move once, and the specific number of movements is determined by the distance and the first step length;

[0105] If the distance between the pin needle and the corresponding fiducial point is less than the preset value, control the jig to move to the position where the at least two pin needles are completely aligned with the corresponding fiducial points according to the second step length. Among them, the jig can be controlled to move multiple times or move once, and the specific number of movements is determined by the distance and the first step length;

[0106] Among them, the second step length is less than the first step length.

[0107] As an alternative implementation, in the embodiments of the present invention, the movement of the jig along the X-axis, Y-axis, and θ-axis is controlled by motors along the X-axis, Y-axis, and θ-axis.

[0108] In the specific implementation process, after the COF product to be inspected reaches the position to be inspected, first determine that the fiducial point of the COF product is within the field of view of the CCD image alignment system, and then perform an initial alignment on the fiducial point of the COF product through the CCD image alignment system. At this time, due to the insufficient accuracy, the jig and the COF product are not aligned and there is still a deviation. Finally, drive the jig to move along the X-axis, Y-axis, and θ-axis directions through the motors on the X-axis, Y-axis, and θ-axis to reach the center of the fiducial point of the COF product and align it with the center of the camera's field of view of the CCD image alignment system.

[0109] Embed the determined distance Δx moved along the X-axis, the distance Δy moved along the Y-axis, and the angle Δθ moved along the θ-axis into the software program. Before embedding Δx, Δy, and Δθ into the software program, it is necessary to ensure that the motor encoder is at the zero reference point position, and the subsequent motor return to the origin needs to be at this zero reference point position.

[0110] Optionally, the software program can be a PLC program or a PC control program, which realizes the CCD image alignment system cooperating with the motors on the X-axis, Y-axis, and θ-axis to first complete the alignment of the center of the product fiducial point with the center of the camera's field of view of the CCD image alignment system, and then use the motors on the X-axis, Y-axis, and θ-axis to drive the jig to move Δx, Δy, and Δθ along the X-axis, Y-axis, and θ-axis respectively, so that the jig pin is aligned with the COF product Pad, and the high-precision alignment of the jig pin and the product Pad is completed.

[0111] As Figure 2 shown, the embodiment of the present invention provides a schematic diagram of a COF product, where 200 represents the position of the pin when the jig pin and the Pad are in an aligned state, and the area 201 represents the Pad.

[0112] As Figure 3 shown, the embodiment of the present invention also provides a specific alignment adjustment method. The specific implementation steps of this method are as follows:

[0113] Step 300: Determine that the COF product to be inspected reaches the position to be inspected;

[0114] Step 301: Adjust the position of the current jig so that the position has a fixed positional relationship with the COF product;

[0115] Step 302: Control the jig to move to the initial position, where the initial position is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the center of the pad;

[0116] Step 303: Obtain the deviation value between the pin of the jig at the initial position and the fiducial point on the corresponding pad of the COF product through a microscope;

[0117] Step 304: Control the jig to move along the corresponding coordinate axes according to the deviation value;

[0118] Among them, the coordinate axes include the X-axis, Y-axis, and θ-axis;

[0119] Step 305: Determine the movement offset of the jig according to the total amounts of movement of the jig along the X-axis, Y-axis, and θ-axis respectively;

[0120] Step 306: Control each pin of the jig to be aligned with the center of each exposure point pad of the COF product according to the initial position of the jig and the movement offset.

[0121] Embodiment 2

[0122] Based on the same inventive concept, an embodiment of the present invention further provides an alignment adjustment device. Since this device is the device in the method of the embodiment of the present invention, and the principle of solving problems by this device is similar to that of the method, the implementation of this device can refer to the implementation of the method, and the repeated parts will not be elaborated.

[0123] As Figure 4 shown, the device includes:

[0124] An adjustment unit 400, configured to adjust the position of the current jig to make the position have a fixed positional relationship with the COF product;

[0125] A control unit 401, configured to control the jig to move to the initial position, and control each pin of the jig to be aligned with the center of each exposure point pad of the COF product according to the pre-acquired movement offset of the jig; among them, the initial position is the position of the jig determined according to the positions of the pins located within the pad area and not aligned with the pad center; the numbers and distribution rules of each pin of the jig and each pad are the same; the movement offset is determined by the deviation value between the pins of the jig located at the initial position and the fiducial points on the corresponding pads of the COF product obtained through a microscope.

[0126] As an optional implementation manner, the control unit is specifically configured to determine the movement offset in the following manner:

[0127] According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, where the distances are determined through a microscope, and the line positional relationship between the pads corresponding to the at least two pins is fixed;

[0128] Determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, where the θ-axis is used to represent the rotation angle of the jig in the plane formed by the X-axis and the Y-axis.

[0129] As an alternative implementation, the control unit is specifically configured to determine that the at least two pin needles are completely aligned with the corresponding fiducial points in the following manner:

[0130] If an alignment instruction is received, determine that the at least two pin needles are completely aligned with the corresponding fiducial points; and / or,

[0131] Based on the circuit loop formed by the complete alignment of the pin needles and the pads, determine that the at least two pin needles are completely aligned with the corresponding fiducial points by measuring voltage or current.

[0132] As an alternative implementation, the adjustment unit is specifically configured to:

[0133] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current jig, so that the center of the field of view of the CCD cameras is respectively aligned with at least two fiducial points on the COF product.

[0134] As an alternative implementation, the control unit is specifically configured to determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively:

[0135] Determine the total amount of movement of the jig in the X-axis as the movement offset in the X-axis;

[0136] Determine the total amount of movement of the jig in the Y-axis as the movement offset in the Y-axis;

[0137] Determine the total amount of movement of the jig in the θ-axis as the movement offset in the θ-axis.

[0138] Embodiment 3

[0139] Based on the same inventive concept, an embodiment of the present invention further provides a registration adjustment device. Since this device is the device in the method in the embodiment of the present invention, and the principle of this device to solve problems is similar to that of the method, the implementation of this device can refer to the implementation of the method, and the repeated parts will not be described again.

[0140] As Figure 5 shown, the device includes a processor 500 and a memory 501. The memory is used to store programs executable by the processor, and the processor is used to read the programs in the memory and execute the following steps:

[0141] Adjust the position of the current jig so that the position has a fixed positional relationship with the COF product;

[0142] Control the jig to move to the initial position, and according to the pre-acquired movement offset of the jig, control each pin of the jig to be centered and aligned with each exposure point pad of the COF product; wherein, the initial position is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the pad center; the number and distribution law of each pin of the jig and each pad are the same;

[0143] The movement offset is determined by the deviation value between the pin of the jig located at the initial position obtained by the microscope and the fiducial point on the corresponding pad of the COF product.

[0144] As an optional implementation manner, the processor is specifically used to determine the movement offset in the following manner:

[0145] According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, wherein the distances are determined by the microscope, and the circuit position relationship between the pads corresponding to the at least two pins is fixed;

[0146] According to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, determine the movement offset of the jig, wherein the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and Y-axis.

[0147] As an optional implementation manner, the processor is specifically used to determine that the at least two pins are completely aligned with the corresponding fiducial points in the following manner:

[0148] If an alignment instruction is received, determine that the at least two pins are completely aligned with the corresponding fiducial points; and / or,

[0149] Based on the circuit loop formed by the complete alignment of the pins and pads, determine that the at least two pins are completely aligned with the corresponding fiducial points by measuring voltage or current.

[0150] As an optional implementation manner, the processor is specifically used to:

[0151] Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current jig, so that the field of view centers of the CCD cameras are respectively aligned with at least two fiducial points on the COF product.

[0152] As an alternative embodiment, the processor is specifically configured to determine the movement offset of the jig according to the total amounts of movement of the jig along the X-axis, Y-axis, and θ-axis respectively:

[0153] Determine the total amount of movement of the jig along the X-axis as the movement offset along the X-axis;

[0154] Determine the total amount of movement of the jig along the Y-axis as the movement offset along the Y-axis;

[0155] Determine the total amount of movement of the jig along the θ-axis as the movement offset along the θ-axis.

[0156] An embodiment of the present invention further provides a computer storage medium, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented:

[0157] Adjust the position of the current jig to make the position have a fixed positional relationship with the COF product;

[0158] Control the jig to move to the initial position, and according to the previously obtained movement offset of the jig, control each pin of the jig to be aligned with the center of each exposure point pad of the COF product;

[0159] Wherein, the initial position is the position of the jig determined according to the position of the pin that is located within the pad area and not aligned with the pad center; the number and distribution rules of each pin of the jig and each pad are the same; the movement offset is determined by the deviation value between the pin of the jig located at the initial position and the fiducial point on the corresponding pad of the COF product obtained through a microscope.

[0160] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0161] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general purpose computers, special purpose computers, embedded processors, or other programmable data processing devices to produce a machine, such that the instructions executed by the processors of the computer or other programmable data processing devices produce an apparatus for implementing the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or an apparatus for implementing the functions specified in a block or multiple blocks.

[0162] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction apparatus that implements the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or an apparatus for implementing the functions specified in a block or multiple blocks.

[0163] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in the flow Figure 1 one or more flows and / or blocks Figure 1 or an apparatus for implementing the functions specified in a block or multiple blocks.

[0164] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A method for adjusting the position, characterized in that: The method includes: Adjust the position of the current fixture so that the position has a fixed positional relationship with the COF product; Control the fixture to move to the initial position, and according to the pre-acquired movement offset of the fixture, control each pin of the fixture to be aligned with the center of each exposure point pad of the COF product; Wherein, the initial position is the position of the fixture determined according to the position of the pins located within the pad area and not aligned with the pad center; the number and distribution law of each pin of the fixture and each pad are the same; the movement offset is determined by the deviation value between the pin of the fixture at the initial position obtained by the microscope and the fiducial point on the corresponding pad of the COF product; Determine the movement offset by the following method: According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, wherein the distances are determined by the microscope, and the line positional relationship between the pads corresponding to the at least two pins is fixed; determine the movement offset of the fixture according to the total amounts of movement of the fixture in the X-axis, Y-axis, and θ-axis respectively, wherein the θ-axis is used to represent the rotation angle of the fixture in the plane composed of the X-axis and Y-axis; the fiducial point of the pad is the center point of the pad; control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points by any of the following methods: Method 1: The microscope has a communication intelligent function, and according to the distances obtained by the microscope, control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points; Method 2: If the distance is greater than the preset value, control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points at the first step length; if the distance is less than the preset value, control the fixture to move to a position where the at least two pins are completely aligned with the corresponding fiducial points at the second step length; wherein, the second step length is less than the first step length.

2. The method according to claim 1, characterized in that, Determine that the at least two pins are completely aligned with the corresponding fiducial points by the following method: If an alignment instruction is received, determine that the at least two pins are completely aligned with the corresponding fiducial points; and / or, Based on the circuit loop formed by the complete alignment of the pin and the pad, determine that the at least two pins are completely aligned with the corresponding fiducial points by measuring voltage or current.

3. The method according to claim 1, characterized in that, Adjusting the position of the current fixture includes: Adjust the positions of at least two CCD cameras having a preset fixed positional relationship with the current fixture so that the center of the field of view of the CCD cameras is respectively aligned with at least two fiducial points on the COF product.

4. The method according to claim 1, characterized in that Determining the movement offset of the fixture according to the total amounts of movement of the fixture in the X-axis, Y-axis, and θ-axis respectively includes: Determine the total amount of movement of the fixture in the X-axis as the movement offset in the X-axis; Determine the total amount of movement of the fixture in the Y-axis as the movement offset in the Y-axis; Determine the total amount of movement of the jig in the θ-axis as the movement offset in the θ-axis.

5. A positioning adjustment device, characterized in that: The device includes: An adjustment unit for adjusting the position of the current jig so that the position has a fixed positional relationship with the COF product; A control unit for controlling the jig to move to the initial position and, according to the pre-acquired movement offset of the jig, controlling the respective pin needles of the jig to be centered and aligned with the respective exposure point pads of the COF product; wherein, the initial position is the position of the jig determined according to the position of the pin needles located within the pad area and not aligned with the pad center; the number and distribution pattern of the pin needles of each jig and the pads are the same; the movement offset is determined by the deviation value between the pin needles of the jig at the initial position obtained by a microscope and the fiducial points on the corresponding pads of the COF product; The control unit is specifically used to determine the movement offset in the following manner: According to the distances between at least two pin needles and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pin needles are completely aligned with the corresponding fiducial points, where the distances are determined by a microscope, and the line positional relationship between the pads corresponding to the at least two pin needles is fixed; determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, where the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and Y-axis; control the jig to move to a position where the at least two pin needles are completely aligned with the corresponding fiducial points in any of the following manners: Method 1: The microscope has a communication intelligent function, and according to the distances obtained by the microscope, control the jig to move to a position where the at least two pin needles are completely aligned with the corresponding fiducial points; Method 2: If the distance is greater than a preset value, control the jig to move to a position where the at least two pin needles are completely aligned with the corresponding fiducial points in the first step length; if the distance is less than the preset value, control the jig to move to a position where the at least two pin needles are completely aligned with the corresponding fiducial points in the second step length; wherein, the second step length is less than the first step length.

6. A positioning adjustment device, characterized in that: The device includes a processor and a memory, the memory is used to store programs executable by the processor, and the processor is used to read the programs in the memory and execute the following steps: Adjust the position of the current jig so that the position has a fixed positional relationship with the COF product; Control the jig to move to the initial position, and according to the pre-acquired movement offset of the jig, control each pin of the jig to be centered and aligned with each exposure point pad of the COF product; wherein, the initial position is the position of the jig determined according to the position of the pin that is within the pad area and not aligned with the pad center; the number and distribution law of each pin of the jig and each pad are the same; the movement offset is determined by the deviation value between the pin of the jig at the initial position obtained by the microscope and the fiducial point on the corresponding pad of the COF product; The processor is specifically configured to determine the movement offset in the following manner: According to the distances between at least two pins and the fiducial points on the corresponding at least two pads, control the jig to move to a position where the at least two pins are completely aligned with the corresponding fiducial points, wherein the distances are determined by the microscope, and the line position relationship between the pads corresponding to the at least two pins is fixed; determine the movement offset of the jig according to the total amounts of movement of the jig in the X-axis, Y-axis, and θ-axis respectively, wherein the θ-axis is used to represent the rotation angle of the jig in the plane composed of the X-axis and the Y-axis; Control the jig to move to the position where the at least two pins are completely aligned with the corresponding fiducial points in any of the following manners: Method 1: The microscope has a communication intelligent function, and according to the distances obtained by the microscope, control the jig to move to the position where the at least two pins are completely aligned with the corresponding fiducial points; Method 2: If the distance is greater than the preset value, control the jig to move to the position where the at least two pins are completely aligned with the corresponding fiducial points at the first step length; if the distance is less than the preset value, control the jig to move to the position where the at least two pins are completely aligned with the corresponding fiducial points at the second step length; wherein, the second step length is less than the first step length.

7. A computer storage medium, on which a computer program is stored, characterized in that, When the program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 4.

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