Chip testing device and clamping fastening device
By introducing fastening and clamping components into the chip testing device, and using fasteners and springs to limit the clamping force, the problem of incomplete contact caused by clamping force attenuation is solved, thus improving the accuracy of chip testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU GALAXY CENTURY MICROELECTRONICS CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-02
AI Technical Summary
In the prior art, the clamping force of the chip testing device decreases after prolonged use, resulting in incomplete contact and affecting the accuracy of the test results.
A chip testing device was designed, which employs a fastening component and a clamping component. The fasteners are engaged in the fastening position of the clamping component and springs are used to limit the clamping, ensuring that the clamping component tightly clamps the chip pins and preventing the clamping force from loosening.
This effectively prevents the clamping force from loosening after long-term use, ensuring the contact integrity of chip testing and improving the accuracy of test results.
Smart Images
Figure CN224317745U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chip testing technology, specifically relating to chip testing devices and clamping and fastening devices. Background Technology
[0002] After the chip is fabricated, it is necessary to use testing equipment to detect the DC parameters of the chip. Generally, a corresponding number of elastic clips are used to clamp the corresponding pins. The elastic clips directly clamp the pins, but due to repeated opening and closing of the clips, their elasticity is easily attenuated, resulting in a decrease in clamping force and incomplete contact. At this time, due to the reduction of the contact area, the impedance will increase, which will affect the authenticity of the chip test value.
[0003] Therefore, a chip testing device and a clamping and fastening device are designed to solve the technical problem in the prior art where the clamping force of the test chip assembly on the chip loosens after long-term use, resulting in incomplete contact and affecting the test results.
[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0005] This disclosure provides at least one chip testing device and a clamping and fastening device.
[0006] In a first aspect, embodiments of this disclosure provide a chip testing apparatus, including:
[0007] At least one pair of testing mechanisms are respectively located on both sides of the chip; among them
[0008] Each testing facility includes several sets of clamping components corresponding to the number of chip pins; and
[0009] A fastening assembly is disposed on the outside of the clamping assembly; wherein
[0010] The fastening component is adapted to abut against the clamping component after each clamping component has clamped the corresponding pin, thereby enabling the clamping component to tightly clamp the corresponding pin.
[0011] In one alternative implementation, the fastening assembly includes:
[0012] A rotating shaft, on which at least one pair of sliding sleeves are provided;
[0013] The sliding sleeve is slidably connected to a sliding rod at one end facing the clamping assembly, and a spring is provided between the sliding sleeve and the sliding rod; and
[0014] The fastener has two ends connected to the two slide bars respectively.
[0015] In one alternative implementation, the clamping assembly includes:
[0016] The first clamping member and the second clamping member; wherein
[0017] The upper surfaces of the first clamping member and the second clamping member are connected; and
[0018] The first clamping member and the second clamping member are stacked one on top of the other to clamp the corresponding pins of the chip.
[0019] In one optional embodiment, a fastening position is provided on the upper end face of the first clamping member; wherein
[0020] The rotating shaft is adapted to rotate the slide bar to the fastening position during rotation so that the first clamping member and the second clamping member tightly clamp the corresponding pin.
[0021] In one optional embodiment, a fixing platform is provided on both sides of the chip; wherein
[0022] Each mounting platform has a pair of fixing rods on its end face facing the chip;
[0023] Each fixing rod is equipped with a support to support the lower end face of the chip; among which
[0024] Each of the second clamping members is connected to the fixed platform.
[0025] Secondly, embodiments of this disclosure also provide a clamping and fastening device, comprising:
[0026] A fastening assembly is disposed on the outside of the clamping assembly; wherein
[0027] The fastening component is adapted to abut against the clamping component after each clamping component has clamped the corresponding pin, thereby enabling the clamping component to tightly clamp the corresponding pin.
[0028] In one alternative implementation, the fastening assembly includes:
[0029] A rotating shaft, on which at least one pair of sliding sleeves are provided;
[0030] The sliding sleeve is slidably connected to a sliding rod at one end facing the clamping assembly, and a spring is provided between the sliding sleeve and the sliding rod; and
[0031] The fastener has two ends connected to the two slide bars respectively.
[0032] The beneficial effect of this utility model is that, by providing a fastening component, after the first clamping member and the second clamping member have finished clamping the corresponding chip pins, the fastener in the fastening component is engaged in the fastening position opened on the first clamping member, and a spring is used to limit the fastener, thereby tightly clamping the chip pins with the first clamping member and the second clamping member, avoiding the phenomenon that the clamping force of the first clamping member and the second clamping member will loosen after long-term use, resulting in incomplete contact with the chip pins.
[0033] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.
[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0035] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0036] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in the embodiments of this disclosure;
[0037] Figure 2 This is a schematic cross-sectional view of an embodiment of the present disclosure.
[0038] In the picture:
[0039] 1. Chip; 10. Pins;
[0040] 2. Testing mechanism; 20. Fixing platform; 21. Fixing rod; 210. Support component; 22. Clamping assembly; 220. Second clamping component; 221. First clamping component; 221a. Fastening position; 23. Fastening assembly; 230. Rotating shaft; 231. Sliding sleeve; 231a. Spring; 231b. Slide rod; 231c. Fastener. Detailed Implementation
[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0042] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0043] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0044] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0045] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0046] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0047] Research has found that after chip processing is completed, testing equipment is needed to detect the DC parameters of the chip. Generally, a corresponding number of conductive test pieces are used to clamp the corresponding pins. As the chip being tested needs to be replaced continuously, the clamping force of the test pieces on the chip will loosen as the working time increases, resulting in incomplete contact. At this time, due to the reduction of the contact area, the impedance will increase, which will affect the accuracy of the chip test value.
[0048] Based on the above research, this disclosure provides a chip testing device and a clamping and fastening device. By providing a fastening component, after the first clamping member and the second clamping member have finished clamping the corresponding chip pins, the fastener in the fastening component is engaged in the fastening position opened on the first clamping member, and a spring is used to limit the fastener, thereby tightly clamping the chip pins with the first clamping member and the second clamping member, avoiding the phenomenon that the clamping force of the first clamping member and the second clamping member will loosen after long-term use, resulting in incomplete contact with the chip pins.
[0049] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0051] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0052] In some embodiments, such as Figure 1 and Figure 2As shown, before starting the test, chip 1 is placed between two fixed platforms 20, and each pin 10 on chip 1 is inserted into the corresponding clamping assembly 22, so that each first clamping member 221 and second clamping member 220 clamps the corresponding pin 10 (both the first clamping member 221 and the second clamping member 220 are made of conductive material, and there is an installation gap between them). As shown in the figure, both the first clamping member 221 and the second clamping member 220 are L-shaped, and one end of the first clamping member 221 is connected to the upper end face of the second clamping member 220. After the pin 10 is inserted, the operator manually rotates the rotating shaft 230, causing it to rotate around the bearing connection point with the two fixed rods 21, and proceeds... The sliding sleeve 231 mounted on it rotates, and the fastener 231c (preferably made of PEEK material) rotates accordingly. When the fastener 231c rotates to abut against the upper end face of the first clamping member 221, as the fastener 231c continues to rotate, the fastener 231c pushes the slide bar 231b to slide inside the sliding sleeve 231, and the spring 231a is compressed. When the fastener 231c rotates to the fastening position 221a, the spring 231a rebounds, pushing the fastener 231c into the fastening position 221a, providing a pushing force to the first clamping member 221, so that the first clamping member 221 and the second clamping member 220 tightly clamp the corresponding pin 10.
[0053] In some embodiments, to further enhance the clamping of the pin 10 by the first clamping member 221 and the second clamping member 220, fastening components 23 can be provided above the first clamping member 221 and below the second clamping member 220, respectively. The two fastening components 23 apply relative forces to the first clamping member 221 and the second clamping member 220 to tightly clamp the pin 10 of the chip 1.
[0054] In some embodiments, a conductive mounting position (not shown in the figure) is provided on the outer side of the fastener 231c. The conductive element is placed in the conductive mounting position to short-circuit the corresponding first clamp 221 for testing different products.
[0055] The equipment that supplies power to the components on the testing mechanism 2 and the equipment that provides the data required by the detection chip 1 are not marked in the diagram, and the connection method between the power supply equipment and the testing mechanism 2 is not existing technology, so it will not be described in detail here.
[0056] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0058] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature and another element or feature illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0059] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0060] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A chip testing device, characterized in that, include: At least one pair of test mechanisms (2) are respectively set on both sides of the chip (1); in Each testing unit (2) includes several sets of clamping components (22) corresponding to the number of pins (10) of the chip (1); and Fastening assembly (23) is disposed on the outside of clamping assembly (22); in The fastening component (23) is adapted to abut against the clamping component (22) after each clamping component (22) clamps the corresponding pin (10), thereby making the clamping component (22) tightly clamp the corresponding pin (10).
2. The chip testing apparatus as described in claim 1, characterized in that, The fastening assembly (23) includes: A rotating shaft (230) is provided with at least one pair of sliding sleeves (231); The sliding sleeve (231) has a sliding rod (231b) slidably connected to one end facing the clamping assembly (22), and a spring (231a) is provided between the sliding sleeve (231) and the sliding rod (231b); and Fastener (231c) is connected at both ends to two slide bars (231b).
3. The chip testing apparatus as described in claim 2, characterized in that, The clamping assembly (22) includes: The first clamping member (221) and the second clamping member (220); wherein The first clamping member (221) is connected to the upper end face of the second clamping member (220); and The first clamping member (221) and the second clamping member (220) are stacked one on top of the other to clamp the corresponding pins (10) of the chip (1).
4. The chip testing apparatus as described in claim 3, characterized in that, The upper end face of the first clamping member (221) is provided with a fastening position (221a); wherein The rotating shaft (230) is adapted to rotate the slide bar (231b) to the fastening position (221a) during rotation so that the first clamping member (221) and the second clamping member (220) tightly clamp the corresponding pin (10).
5. The chip testing apparatus as described in claim 4, characterized in that, Both sides of the chip (1) are provided with fixing platforms (20); wherein Each fixed platform (20) has a pair of fixed rods (21) on its end face facing the chip (1). Each fixing rod (21) is provided with a support member (210) to support the lower end face of the chip (1); among which Each of the second clamping members (220) is connected to the fixed platform (20).
6. A clamping and fastening device, characterized in that, include: The fastening component (23) is disposed on the outside of the clamping component (22); in The fastening component (23) is adapted to abut against the clamping component (22) after each clamping component (22) clamps the corresponding pin (10), thereby making the clamping component (22) tightly clamp the corresponding pin (10).
7. The clamping and fastening device as described in claim 6, characterized in that, The fastening assembly (23) includes: A rotating shaft (230) is provided with at least one pair of sliding sleeves (231); The sliding sleeve (231) has a sliding rod (231b) slidably connected to one end facing the clamping assembly (22), and a spring (231a) is provided between the sliding sleeve (231) and the sliding rod (231b); and Fastener (231c) is connected at both ends to two slide bars (231b).