Rotating disk device for chip data writing and use method thereof

Abstract

The present invention belongs to the field of chip data writing, specifically, a turntable device for chip data writing and a method of using the same, wherein the turntable cover is connected to the upper surface of the test seat mounting frame so as to be relatively rotatable, and the lower surface of the test seat mounting frame is connected to a needle plate, which has the freedom of axial linear motion; a plurality of test seats are evenly arranged along the circumference of the test seat mounting frame, and each test seat is located between the turntable cover and the needle plate, and each test seat is installed with a probe for writing data to the chip placed in the test seat, and contacts are arranged on the upper and lower surfaces of the needle plate, and the contacts on the upper surface are evenly distributed along the circumference of the needle plate and correspond to the test seats one by one; the turntable cover is respectively provided with a feed port, a discharge port and a process port, and the turntable cover is stationary in the working state, and the test seat mounting frame rotates relative to the turntable cover in the working state. The turntable device of the present invention has a simple structure, can realize rotational motion, and has its own damping capacity.

Description

Technical Field

[0001] The present invention belongs to the field of chip data writing, in particular to a turntable device for chip data writing and a method of using the same. Background Art

[0002] Currently, when writing data to a chip, the chip must be placed in a dedicated test socket equipped with probes to complete the personalized data writing. These dedicated test sockets are all single-piece structures, meaning they can only hold one blank chip at a time. This single-piece test socket structure restricts equipment production capacity, is large in size, and has a complex structure, making it difficult to maintain. Furthermore, each test socket requires a separate clamping mechanism to ensure contact between the chip and the probes within the test socket to complete the chip data writing process, and this clamping mechanism poses the risk of damaging the chip. Summary of the Invention

[0003] In order to solve the above-mentioned problems existing in the existing test socket for completing chip data writing, the purpose of the present invention is to provide a turntable device for chip data writing and a method of using the same.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] The turntable device of the present invention includes a turntable cover, a test seat mounting frame, a test seat and a needle plate, wherein the turntable cover is connected to the upper surface of the test seat mounting frame for relative rotation, the lower surface of the test seat mounting frame is connected to the needle plate, and the needle plate has the freedom of axial linear movement; a plurality of test seats are evenly arranged on the test seat mounting frame along the circumference, each of the test seats is located between the turntable cover and the needle plate, and each of the test seats is installed with a probe for writing data to the chip placed in the test seat, and contacts are provided on the upper and lower surfaces of the needle plate, and the contacts on the upper surface are evenly distributed along the circumference of the needle plate and correspond one-to-one to the test seats; the turntable cover is respectively provided with a feed port, a discharge port and a process port, the turntable cover is stationary in the working state, and the test seat mounting frame rotates relative to the turntable cover in the working state.

[0006] Wherein: the turntable cover is connected to a turntable cover rotating shaft, one end of the turntable cover rotating shaft is connected to the turntable cover, and the other end passes through the test seat mounting frame, and the turntable cover rotating shaft is connected to the test seat mounting frame through a bearing so as to be relatively rotatable.

[0007] The middle part of the lower surface of the test seat mounting frame extends axially downward to form an extension portion, and the end face of the extension portion is threadedly connected to a needle plate limit screw; the needle plate is an annular plate, and the inner hole is clearance-matched with the extension portion. The needle plate can be sleeved on the lower surface of the test seat mounting frame for relative axial linear movement, and the edge of the inner hole is axially limited by the needle plate limit screw.

[0008] A buffer spring for resetting the needle plate is provided between the test seat mounting frame and the needle plate, and two ends of the buffer spring are respectively in contact with the test seat mounting frame and the needle plate.

[0009] A guide pin is installed on the test seat mounting frame, and a guide hole is opened on the needle plate at a position corresponding to the guide pin. The guide pin passes through the guide hole and plays a guiding role during the linear motion of the needle plate.

[0010] A radial positioning surface for the turntable cover is provided on the side surface of the turntable cover. In the working state, the turntable cover is radially positioned by making surface contact with the auxiliary mechanism A of the station where the turntable cover is located through the radial positioning surface for the turntable cover.

[0011] A radial positioning groove is provided on one side of the test seat mounting frame. When in working state, the test seat mounting frame makes curved surface contact with the auxiliary mechanism B of the work station through the radial positioning groove, so that any test seat on the test seat mounting frame is opposite to the feed port on the turntable cover.

[0012] The lower surface of the turntable cover is provided with a convex groove which abuts against the upper surface of the chip during the chip writing process.

[0013] The method for using the turntable device for writing chip data of the present invention comprises the following steps:

[0014] Step 1: Move the turntable device to a predetermined position for receiving blank chips, and radially position the turntable cover and the test seat mounting frame respectively;

[0015] Step 2: Place a blank chip from the feed port on the turntable cover into an empty test seat on the test seat mounting frame. Each time a blank chip is placed, the test seat mounting frame rotates a set angle via the rotation axis on the station, so that another empty test seat is rotated to the bottom of the feed port to continue receiving blank chips. Repeat step 2 until there are no empty test seats on the test seat mounting frame. During the process of each empty test seat receiving a blank chip, the turntable cover remains stationary.

[0016] Step 3: After the turntable device moves linearly under the action of the translation mechanism and enters the writing station, the writing device on the writing station moves linearly in the axial direction of the turntable device, so that the probes arranged on the writing device contact the contacts on the lower surface of the needle plate. Under the action of the probes of the writing device, the needle plate continues to move linearly in the axial direction until the contacts on the upper surface of the needle plate contact the probes in the test sockets. At this time, data writing to the blank chip begins;

[0017] Step 4: After the chip data is written, the writing device moves linearly in the opposite direction, the needle plate resets, and the probe in the test seat is separated from the chip; the turntable device moves linearly into the discharge station, and the chip with completed data writing is marked at the laser marking port. Then, the test seat mounting frame rotates to a set angle, and the laser-marked chip is identified at the visual recognition port.

[0018] Step 5: After the visual recognition is completed, the test seat mounting frame is rotated to a set angle, and the chip that has completed the visual recognition is moved away by the chip handling device at the discharge port;

[0019] Step 6: After the chip is transported, the test seat mounting frame rotates to a set angle, and the empty test seat moves to the position below the inlet again to begin receiving blank chips. At this time, the test seat carrying the chip that has completed visual recognition enters the position of the discharge port for discharge;

[0020] Repeat steps 1 to 6, and the turntable device completes continuous feeding and discharging.

[0021] Wherein: a radial positioning surface of the turntable cover is provided on the side surface of the turntable cover, and a radial positioning groove is provided on one side of the test seat mounting frame. In step one, after the turntable device enters the blank core receiving station, the auxiliary mechanism B of the station radially positions the test seat mounting frame through the radial positioning groove; at the same time, the auxiliary mechanism A of the station radially positions the turntable cover through the radial positioning surface of the turntable cover.

[0022] The advantages and positive effects of the present invention are:

[0023] 1. The turntable device of the present invention has a simple structure and innovates the structure of the chip test socket during the data writing process of the chip; the turntable device of the present invention can realize rotational motion and has its own damping capacity. When in working state, the turntable cover does not rotate under the action of the auxiliary mechanism and remains stationary.

[0024] 2. Contacts are provided on the upper and lower surfaces of the needle plate in the turntable device of the present invention, which optimizes the data connection form with the external mechanism. The turntable device can realize convenient linear motion in the plane, meeting the demand of moving the turntable device between various workstations. At the same time, the "error amplification principle" is utilized to increase the area of ​​the contact on the lower surface of the needle plate, thereby improving the stability of data writing.

[0025] 3. The needle plate in the turntable device of the present invention can float up and down in the axial direction. With the help of positioning guide pins and buffer springs, the movement is precise and reliable, which improves the stability of data writing. At the same time, it avoids continuous rigid contact between the probe inside the single test seat and the needle plate, thereby extending the service life of the probe.

[0026] 4. The turntable device of the present invention does not have an auxiliary opening mechanism when loading and unloading. Relying on the characteristics that the turntable device itself can rotate and the turntable cover will not rotate in the free state, the chip with completed data writing and the vacant test seat can reach the predetermined position, realizing the loading and unloading of the chip, reducing the number of mechanisms, reducing costs and simplifying the structure.

[0027] 5. During the chip data writing process, the turntable device of the present invention does not set an auxiliary pressing device on the upper surface of the chip, and relies on its own turntable cover to achieve auxiliary positioning of the chip, that is, the chip is lifted up by a probe until it contacts the convex groove on the lower surface of the turntable cover to achieve data writing. The structure is simple and reliable, and the control cost is low. It is different from the mode of pressing the chip down to make the chip contact with the probe in the prior art.

[0028] 6. The turntable device of the present invention has good structural scalability. By replacing the internal single test sockets, it can be applied to chips of different specifications. At the same time, the number of internal single test sockets can be changed according to the user's production capacity requirements to meet the customer's personalized needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A top view of the structure of the turntable device of the present invention;

[0030] Figure 2 for Figure 1 A-A sectional view in FIG;

[0031] Figure 3 A top view of the structure of the test seat mounting frame in the turntable device of the present invention;

[0032] Figure 4 for Figure 1 The B-B section view in FIG;

[0033] Among them: 1 is the turntable cover, 101 is the feed port, 102 is the discharge port, 103 is the visual recognition port, 104 is the laser marking port, 105 is the radial positioning surface of the turntable cover, and 106 is the convex groove;

[0034] 2 is the test seat installation frame, 201 is the radial positioning groove;

[0035] 3 is the test seat, 4 is the needle plate, 5 is the guide pin shaft, 6 is the bearing, 7 is the turntable cover rotating shaft, 8 is the needle plate limit screw, 9 is the chip, and 10 is the buffer spring. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] like Figures 1 to 4 As shown, the turntable device of the present invention includes a turntable cover 1, a test seat mounting frame 2, a test seat 3 and a needle plate 4, wherein the turntable cover 1 and the upper surface of the test seat mounting frame 2 are relatively rotatably connected, and the lower surface of the test seat mounting frame 2 is connected to the needle plate 4, and the needle plate 4 has the freedom of axial linear motion; a plurality of test seats 3 are evenly arranged along the circumference of the test seat mounting frame 2, and each test seat 3 is located between the turntable cover 1 and the needle plate 4, and each of the test seats 3 is installed with a probe for writing data to the chip 9 placed in the test seat 3, Contacts are provided on the upper and lower surfaces of the needle plate 4. The contacts on the upper surface are evenly distributed along the circumference of the needle plate 4 and correspond one-to-one to the test sockets 3. The contact area of ​​the lower surface of the needle plate 4 in this embodiment is larger than the contact area of ​​the upper surface, which improves the stability of data writing. The turntable cover 1 is respectively provided with a feed port 101, a discharge port 102 and a process port. The process port of this embodiment includes a visual recognition port 103 and a laser marking port 104. The turntable cover 1 is stationary when in working state, and the test socket mounting frame 2 rotates relative to the turntable cover 1 when in working state.

[0038] The turntable cover 1 of this embodiment is connected to a turntable cover rotating shaft 7, one end of which is fixed to the turntable cover 1 by a screw, and the other end passes through the middle hole on the test seat mounting frame 2. The turntable cover rotating shaft 7 is connected to the middle hole on the test seat mounting frame 2 through a bearing 6 so as to be relatively rotatable.

[0039] The lower surface of the test socket mounting frame 2 of this embodiment is threaded with multiple needle plate limit screws 8 uniformly along the circumferential direction. The needle plate 4 is mounted on the lower surface of the test socket mounting frame 2 for linear relative axial movement and is axially limited by the needle plate limit screws 8. The middle portion of the lower surface of the test socket mounting frame 2 of this embodiment extends axially downward to form an extension portion. The end face of the extension portion is threaded with multiple needle plate limit screws 8. The needle plate 4 is an annular plate with an inner hole that is loosely fitted with the extension portion. The edge of the inner hole is axially limited by the needle plate limit screws 8.

[0040] In this embodiment, a plurality of guide pins 5 (two guide pins 5 in this embodiment) are evenly installed along the circumferential direction on the test seat mounting frame 2, and a guide hole is opened at the position corresponding to the guide pin 5 on the needle plate 4. The guide pin 5 passes through the guide hole and plays a guiding role during the linear motion of the needle plate 4.

[0041] The test seat mounting frame 2 of this embodiment is provided with a groove on its lower surface facing the needle plate 4, and a buffer spring 10 for resetting the needle plate 4 is placed in the groove. The buffer spring 10 is located between the test seat mounting frame 2 and the needle plate 4, and the two ends of the buffer spring 10 are respectively in contact with the test seat mounting frame 2 and the needle plate 4.

[0042] The side of the turntable cover 1 of this embodiment is provided with a turntable cover radial positioning surface 105. In the working state, the turntable cover 1 is radially positioned by the turntable cover radial positioning surface 105 in surface contact with the auxiliary mechanism A of the station.

[0043] A radial positioning groove 201 is provided on one side of the test seat mounting frame 2 of this embodiment. When in working state, the test seat mounting frame 2 makes curved surface contact with the auxiliary mechanism B of the work station through the radial positioning groove 201, so that any test seat 3 on the test seat mounting frame 2 is opposite to the feed port 101 on the turntable pressure cover 1.

[0044] The lower surface of the turntable cover 1 of this embodiment is provided with a convex groove 106 which abuts against the upper surface of the chip 9 during the chip 9 writing process.

[0045] The method for using the turntable device for writing chip data of the present invention comprises the following steps:

[0046] In step 1, the turntable device is moved to a predetermined station for receiving blank chips. The auxiliary mechanism B of the station radially positions the test socket mounting frame 2 via the radial positioning groove 201. This contact is a mechanical adaptive curved surface contact. Simultaneously, the auxiliary mechanism A of the station radially positions the turntable cover 1 via the radial positioning surface 105 of the turntable cover. This contact is a mechanical surface contact. Both the auxiliary mechanism A and the auxiliary mechanism B of the present invention are prior art.

[0047] Step 2: Place a blank chip from the feed port 101 on the turntable gland 1 into an empty test seat 3 on the test seat mounting frame 2. Each time a blank chip is placed, the test seat mounting frame 2 rotates the rotating shaft on the station by a set angle, so that another empty test seat 3 is rotated to the bottom of the feed port 101 and continues to receive blank chips. Repeat step 2 until there are no empty test seats 3 on the test seat mounting frame 2. During the process of each empty test seat 3 receiving a blank chip, the turntable gland 1 remains stationary due to the damping effect generated between the bearing 6 and the turntable gland rotating shaft 7 and the radial positioning of the auxiliary mechanism A and the auxiliary mechanism B described in step 1.

[0048] In step three, after the turntable device moves linearly under the action of the translation mechanism and enters the writing station, the writing device on the writing station moves linearly in the axial direction of the turntable device, so that the probe arranged on the writing device contacts the contact point on the lower surface of the needle plate 4. Under the action of the probe of the writing device, the needle plate 4 continues to move linearly in the axial direction along the guide pin shaft 5, and the buffer spring 10 is compressed until the contacts on the upper surface of the needle plate 4 contact the probes in the test sockets 3. At this time, data writing to the blank chip begins. During the entire writing process, the convex groove 106 provided on the turntable pressure cover 1 contacts the upper surface of the chip 9, which will not cause the chip 9 to be skewed, thereby ensuring the stability of the writing process. The translation mechanism and writing device of the present invention are both prior art.

[0049] Step 4: After the chip data is written, the writing device makes a reverse linear motion, the needle plate 4 is reset under the action of the buffer spring 10, and the probe in the test seat 3 is separated from the chip; the turntable device makes a linear motion and enters the discharge station, and the chip on which the data is written is marked at the laser marking port 104, and then the test seat mounting frame 2 rotates to a set angle, and the laser-marked chip is identified at the visual recognition port 103. In this step, the rotation of the test seat mounting frame 2 is driven by the rotating shaft on the station, which is a prior art and will not be described in detail here.

[0050] Step 5: After the visual recognition is completed, the test socket mounting frame 2 is rotated to a set angle, and the chip that has completed the visual recognition is moved away by the chip transport device at the discharge port 102; the transport device of the present invention is a prior art;

[0051] Step 6: After the chip is transported, the test socket mounting frame 2 rotates to a set angle, and the empty test socket 3 moves again to the position below the inlet 101 to begin receiving blank chips. At this time, the test socket 3 carrying the chip that has completed visual recognition enters the position of the discharge port 102 for discharge;

[0052] Repeat steps 1 to 6, and the turntable device completes continuous feeding and discharging.

Claims

1. A turntable device for writing chip data, characterized in that: The invention comprises a turntable cover (1), a test seat mounting frame (2), a test seat (3) and a needle plate (4), wherein the turntable cover (1) is connected to the upper surface of the test seat mounting frame (2) so as to be relatively rotatable, the lower surface of the test seat mounting frame (2) is connected to the needle plate (4), and the needle plate (4) has the freedom of axial linear motion; a plurality of test seats (3) are evenly arranged along the circumference of the test seat mounting frame (2), each of the test seats (3) is located between the turntable cover (1) and the needle plate (4), and each of the test seats (3) is arranged between the turntable cover (1) and the needle plate (4). (3) are provided with probes for writing data to the chip (9) placed in the test seat (3); the upper surface and the lower surface of the needle plate (4) are provided with contacts, and the contacts on the upper surface are evenly distributed along the circumference of the needle plate (4) and correspond one to one with the test seat (3); the turntable cover (1) is provided with a material inlet (101), a material outlet (102) and a process port, respectively; the turntable cover (1) is stationary in the working state, and the test seat mounting frame (2) rotates relative to the turntable cover (1) in the working state; The middle part of the lower surface of the test seat mounting frame (2) extends axially downward to form an extension portion, and the end surface of the extension portion is threadedly connected to a needle plate limit screw (8); the needle plate (4) is an annular plate, and the inner hole is clearance-matched with the extension portion. The needle plate (4) can be sleeved on the lower surface of the test seat mounting frame (2) for relative axial linear movement, and the edge of the inner hole is axially limited by the needle plate limit screw (8); A buffer spring (10) for resetting the needle plate (4) is provided between the test seat mounting frame (2) and the needle plate (4), and two ends of the buffer spring (10) are respectively in contact with the test seat mounting frame (2) and the needle plate (4); A guide pin (5) is mounted on the test seat mounting frame (2), and a guide hole is provided on the needle plate (4) at a position corresponding to the guide pin (5). The guide pin (5) passes through the guide hole and plays a guiding role when the needle plate (4) performs linear motion.

2. The turntable device for writing chip data according to claim 1, characterized in that: The turntable cover (1) is connected to a turntable cover rotating shaft (7), one end of the turntable cover rotating shaft (7) is connected to the turntable cover (1), and the other end passes through the test seat mounting frame (2), and the turntable cover rotating shaft (7) is connected to the test seat mounting frame (2) via a bearing (6) so as to be relatively rotatable.

3. The turntable device for writing chip data according to claim 1, characterized in that: A turntable cover radial positioning surface (105) is provided on the side surface of the turntable cover (1). In the working state, the turntable cover (1) is radially positioned by surface contact between the turntable cover radial positioning surface (105) and the auxiliary mechanism A at the work station.

4. The turntable device for writing chip data according to claim 1, characterized in that: A radial positioning groove (201) is provided on one side of the test seat mounting frame (2). In a working state, the test seat mounting frame (2) makes curved surface contact with the auxiliary mechanism B of the work station through the radial positioning groove (201), so that any test seat (3) on the test seat mounting frame (2) is aligned with the feed opening (101) on the turntable cover (1).

5. The turntable device for writing chip data according to claim 1, characterized in that: The lower surface of the turntable cover (1) is provided with a convex groove (106) which abuts against the upper surface of the chip (9) during the chip (9) writing process.

6. A method for using the turntable device for writing chip data according to any one of claims 1 to 5, characterized in that: The following steps are included Step 1, moving the turntable device into a predetermined station for receiving blank chips, and radially positioning the turntable cover (1) and the test seat mounting frame (2) respectively; Step 2: Place a blank chip from the feed port (101) on the turntable cover (1) into an empty test seat (3) on the test seat mounting frame (2); each time a blank chip is placed, the test seat mounting frame (2) rotates by a set angle via a rotating shaft on the station, so that another empty test seat (3) is rotated to the bottom of the feed port (101) to continue to receive blank chips; repeat step 2 until there are no empty test seats (3) on the test seat mounting frame (2); during the process of each empty test seat (3) receiving a blank chip, the turntable cover (1) remains stationary; Step three, after the turntable device moves linearly under the action of the translation mechanism and enters the writing station, the writing device on the writing station moves linearly in the axial direction of the turntable device, so that the probes arranged on the writing device contact the contacts on the lower surface of the needle plate (4), and the needle plate (4) continues to move linearly in the axial direction under the action of the probes of the writing device until the contacts on the upper surface of the needle plate (4) contact the probes in the test sockets (3), and data writing to the blank chip begins at this time; Step 4: After the chip data is written, the writing device performs a reverse linear motion, the needle plate (4) is reset, and the probe in the test seat (3) is separated from the chip; the turntable device performs a linear motion to enter the discharge station, and the chip on which the data has been written is marked at the laser marking port, and then the test seat mounting frame (2) rotates to a set angle, and the laser-marked chip is identified at the visual recognition port. Step 5: After the visual recognition is completed, the test socket mounting frame (2) is rotated to a set angle, and the chip that has completed the visual recognition is moved away by the chip transport device at the discharge port (102); Step 6: After the chip is transported, the test seat mounting frame (2) rotates to a set angle, and the empty test seat (3) moves to the position below the inlet (101) again to start receiving blank chips. At this time, the test seat (3) carrying the chip that has completed visual recognition enters the position of the outlet (102) to discharge the chips; Repeat steps 1 to 6, and the turntable device completes continuous feeding and discharging.

7. The method of use according to claim 6, characterized in that: A turntable cover radial positioning surface (105) is provided on the side of the turntable cover (1), and a radial positioning groove (201) is provided on one side of the test seat mounting frame (2). In step one, after the turntable device enters a blank core receiving station, the auxiliary mechanism B of the station radially positions the test seat mounting frame (2) through the radial positioning groove (201); at the same time, the auxiliary mechanism A of the station radially positions the turntable cover (1) through the turntable cover radial positioning surface (105).

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