Chip fixing structure

Abstract

The application discloses a chip fixing structure and relates to the field of electronic components, which comprises a chip connecting seat provided with a chip groove for accommodating a chip, and a clamping piece located in the chip groove and detachably connected with the chip connecting seat, the clamping piece being used for clamping the chip together with the groove bottom wall of the chip groove. In the application, the chip is clamped by the clamping piece and the chip groove, so that the chip is not prone to floating under the buoyancy of glue, and the installation position precision of the chip is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic component production, and in particular to a chip fixing structure. BACKGROUND

[0002] The integrated circuit manufactured on the surface of a semiconductor chip is also called a thin-film integrated circuit, and as an electronic component, the operation of the chip needs to be realized through connection with other electronic components. The chip can usually be mounted on a circuit board or a plastic connecting seat with a pre-installed conductive structure.

[0003] For a chip mounted on a plastic connecting seat, in order to ensure the stability of the connection between the plastic connecting seat and the chip, a groove structure for placing the chip can be arranged on the plastic connecting seat. After the chip is placed in the groove, the chip and the plastic connecting seat are connected and fixed by pouring glue into the groove. In order to ensure the stability of the glue sealing, the groove cannot be too shallow, but as the depth of the groove increases, the amount of glue poured into the groove increases, and the chip is prone to floating under the action of the buoyancy of the glue, which affects the position accuracy of the chip installation and thus affects the electrical connection state of the chip and the use function of the chip. SUMMARY

[0004] In order to reduce the floating displacement of the chip mounted on the plastic connecting seat when pouring glue, the present application provides the above technical solution.

[0005] The chip fixing structure provided by the present application adopts the following technical solution:

[0006] A chip fixing structure includes a chip connecting seat, the chip connecting seat is provided with a chip slot for accommodating a chip, the chip connecting seat is provided with a clamping piece, the clamping piece is located in the chip slot, the clamping piece and the chip connecting seat are detachably connected, and the clamping piece is used to clamp the chip together with the bottom wall of the chip slot.

[0007] By adopting the above technical solution, when the chip is installed, the chip is placed in the chip slot of the connecting seat, and then the clamping piece is inserted into the chip slot, so that the detachable connection between the clamping piece and the chip connecting seat is formed, and the clamping piece and the bottom of the chip slot clamp the chip together. When the glue is poured into the chip slot, the chip is not prone to floating under the action of the buoyancy of the glue, thereby facilitating the guarantee of the position accuracy of the chip in the chip slot.

[0008] Optionally, the clamping piece comprises a transverse portion and longitudinal portions arranged at both ends of the transverse portion, opposite sides of the two longitudinal portions are respectively provided with first limiting protrusions, the first limiting protrusions are located at one end of the longitudinal portion away from the transverse portion, the chip slot is provided with two second limiting protrusions parallel to the inner side wall of the wide surface of the clamping piece, the first limiting protrusions are close to the groove bottom of the chip slot relative to the second limiting protrusions, and the second limiting protrusions are used to hinder the first limiting protrusions away from the groove bottom of the chip slot.

[0009] By adopting the technical scheme, after the clamping piece is inserted into the chip slot, the two second limiting protrusions located at the inner side wall of the chip slot hinder the first limiting protrusions located at the two abutting portions from being away from the groove bottom of the chip slot, so that the clamping piece is kept in the chip slot, that is, the clamping effect between the clamping piece and the chip connecting seat is formed.

[0010] Optionally, the clamping piece has a flat structure, the two opposite side walls of the chip slot are respectively provided with limiting rib plates, the length direction of the limiting rib plates is perpendicular to the groove bottom of the chip slot, and each limiting rib plate and the two adjacent inner side walls of the chip slot jointly form a positioning slot for positioning the longitudinal portion.

[0011] By adopting the technical scheme, the limiting rib plates and the two adjacent inner side walls of the chip slot form the positioning slot for positioning the longitudinal portion, so that the position of the clamping piece in the chip slot is more stable.

[0012] Optionally, the transverse portion is provided with two abutting portions, the two abutting portions are located between the two longitudinal portions, the length direction of the abutting portion is consistent with the length direction of the longitudinal portion, and the clamping piece is used to abut the chip; one end of the abutting portion away from the transverse portion is provided with a notched corner, the notched corners located at the two abutting portions are arranged opposite to each other, the opposite surfaces of the two notched corners are respectively used to abut the thickness surface of the chip, and the surface of the notched corner facing the bottom wall of the chip slot is used to abut the wide surface of the chip.

[0013] By adopting the technical scheme, the two abutting portions of the clamping piece abut the chip respectively, when the abutting portion abuts the chip, the surfaces of the two notched corners facing the bottom of the chip slot abut the wide surface of the chip, so that the chip is subjected to the combined clamping and positioning action of the abutting portion and the bottom wall of the chip slot; and the chip is located between the two notched corners, so that the chip is subjected to the limiting action parallel to the direction of the groove bottom of the chip slot, the chip is not easy to float under the buoyancy action of the subsequent glue filled in the chip slot, and the chip is not easy to be displaced under the driving of the glue flowing into the chip slot, thereby being beneficial to guaranteeing the position accuracy of the chip.

[0014] Optionally, the surfaces on opposite sides of the two notches gradually approach each other in a direction away from the transverse portion, and the groove bottom of the chip groove is provided with a clearance groove, and the end portion of the abutting portion away from the transverse portion extends into the clearance groove.

[0015] By adopting the above technical scheme, the positions of the two notches of the abutting portion jointly form a clamping action on the chip, and since the surfaces on opposite sides of the two notches gradually approach each other in a direction away from the transverse portion, the chip clamped between the two abutting portions is not easy to fall off. When installing the chip, the chip can be placed into the chip groove after being clamped by the two abutting portions of the clamping piece, and the chip is clamped and placed by the clamping piece, which is beneficial to make the process of the chip more easily controlled. Further, by providing the clearance groove for avoiding the abutting portion, the surface of the chip can be fully attached to the groove bottom of the chip groove.

[0016] Optionally, the clearance groove is a long strip structure, and the length direction of the clearance groove is arranged along the length direction of the transverse portion, and the clearance groove is used for avoiding the two abutting portions at the same time.

[0017] By adopting the above technical scheme, the same clearance groove is used to avoid the two abutting portions, which is convenient for setting a clearance groove with a larger length size on the groove bottom of the chip groove, and in the case that the size of the chip groove is small, the clearance groove can be more easily formed.

[0018] Optionally, the transverse portion is provided with a plurality of through holes, the opening direction of the through holes is parallel to the groove bottom of the chip groove, and the through holes are located between the groove bottom and the groove opening plane of the chip groove.

[0019] By adopting the above technical scheme, the glue filled in the chip groove can fill the inside space of the through hole, and when the glue solidifies, the glue in the solidified state located in the through hole forms a columnar structure passing through the clamping piece, so that the combination between the glue and the clamping piece is more sufficient and firm.

[0020] Optionally, the transverse portion is provided with a plurality of adhesive points with adhesion on the surface perpendicular to the chip groove bottom, the surface of the transverse portion is provided with a plurality of recesses for accommodating the adhesive points, the adhesive points are bonded to the pit bottom and side wall of the recesses, and the adhesive points protrude from the pit opening of the recesses.

[0021] By adopting the technical scheme, when the clamping piece is installed, the fingers of the worker pinch the surface of the transverse part which is perpendicular to the bottom of the chip slot, and when the fingers of the worker contact the glue point, the glue point has adhesion to the fingers of the worker, so that the situation that the clamping piece falls from the worker's hand can be reduced. The glue point is located on the inner side of the recess, so that the glue point is protected by the recess, and the glue point is not prone to falling under the action of external force. On the other hand, the glue point is bonded with the bottom and the sidewall of the recess at the same time, which is beneficial to reduce the contact surface between the glue point and the fingers of the worker, thereby reducing the adhesion between the glue point and the fingers of the worker, and when the worker's fingers release the clamping piece, the glue point is not easy to be taken away from the clamping piece.

[0022] Optionally, the surface of the transverse part is provided with at least two point-shaped protrusions, the point-shaped protrusions are located on the same side of the glue point on the transverse part, and the size of the point-shaped protrusions protruding outward is greater than the size of the glue point protruding from the hole of the recess.

[0023] By adopting the technical scheme, the point-shaped protrusions can keep a certain gap between the surface of the clamping piece and the placement surface, so that the worker can more conveniently hook the edge of the clamping piece with the fingertips and then pick it up. In addition, since the size of the point-shaped protrusions protruding outward is greater than the size of the glue point protruding from the hole of the recess, when the clamping piece is placed flat, the clamping piece contacts the placement surface through the point-shaped protrusions, and the glue point maintains a distance from the placement surface, so as to avoid the situation that the glue point adheres to the placement surface.

[0024] Optionally, the point-shaped protrusions are located in the edge area of the transverse part away from the bottom of the chip slot.

[0025] By adopting the technical scheme, the point-shaped protrusions are located in the edge area of the transverse part away from the bottom of the chip slot, so that the fingers of the worker can contact the point-shaped protrusions, and the point-shaped protrusions can press the finger pads of the worker, thereby facilitating to increase the damping effect between the clamping piece and the fingers of the worker, so that the worker can more easily insert the clamping piece into the chip slot without slipping.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. When installing a chip, the chip is placed in the chip slot of the connecting seat, and then the clamping piece is inserted into the chip slot, so that the clamping piece and the chip connecting seat form a detachable connection, and the clamping piece and the bottom of the chip slot jointly clamp the chip. When the glue is poured into the chip slot, the chip is not prone to floating under the action of the buoyancy of the glue, thereby facilitating to ensure the position accuracy of the chip in the chip slot.

[0028] 2. The chip is located in the area between two missing corners, so that the chip is limited in the direction parallel to the bottom of the chip slot, when the subsequent chip slot is filled with glue, the chip is not easy to float under the buoyancy of the glue, and the chip is not easy to displace under the driving of the glue flowing into the chip slot, so as to facilitate the protection of the position accuracy of the chip. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of example 1.

[0030] Figure 2 is an exploded view of example 1.

[0031] Figure 3 is a sectional view of line A-A in Figure 1

[0032] Figure 4 is a schematic diagram of the structure of the clamping piece of example 2.

[0033] Figure 5 is a schematic diagram of example 2 for embodying the mounting relationship between the clamping piece and the chip slot.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1, chip connecting seat; 11, chip slot; 13, second limiting protrusion; 14, limiting rib plate; 15, positioning slot; 16, avoiding groove; 17, sealing film; 2, clamping piece; 21, transverse part; 211, through hole; 212, glue point; 213, pit; 214, point-shaped protrusion; 22, longitudinal part; 221, first limiting protrusion; 23, abutting part; 231, missing corner; 232, guide surface; 24, avoiding gap; 3, chip. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings Figures 1-5 The application is further described in detail.

[0037] Example 1

[0038] The chip fixing structure disclosed by the embodiment of the application. Referring to Figure 1 and Figure 2 , the chip fixing structure comprises a chip connecting seat 1 and a clamping piece 2, the chip connecting seat 1 and the clamping piece 2 are both plastic injection parts, the plastic injection parts are embedded with metal conductive members, the chip connecting seat 1 is provided with a chip slot 11 for accommodating a chip 3, the clamping piece 2 is inserted into the chip slot 11 and forms a detachable connection with the chip connecting seat 1, the clamping piece 2 is used to clamp the chip 3 together with the bottom of the chip slot 11.

[0039] ​Under the clamping action of the clamping piece 2 and the bottom wall of the chip slot 11, when the glue is injected into the chip slot 11, the chip 3 is not easy to be floated up by the buoyancy of the glue, which is beneficial to guarantee the installation position of the chip 3.

[0040] With reference to Figure 2 , the clamping piece 2 is a flat structure, the clamping piece 2 includes a transverse part 21 and longitudinal parts 22 arranged at both ends of the transverse part 21, the longitudinal part 22 and the adjacent abutting part 23 form an avoiding gap 24, the opposite sides of the two longitudinal parts 22 are respectively provided with first limiting protrusions 221, the first limiting protrusion 221 is located at one end of the abutting part 23 away from the transverse part 21, the chip slot 11 is provided with a second limiting protrusion 13 towards the inner side wall of the two limiting rib plates 14, the first limiting protrusion 221 is close to the groove bottom of the chip slot 11 relative to the second limiting protrusion 13, the second limiting protrusion 13 is used to hinder the first limiting protrusion 221 away from the groove bottom of the chip slot 11, so that the clamping piece 2 and the chip connecting seat 1 form the clamping action.

[0041] With reference to Figure 2 , the two opposite side walls of the chip slot 11 are respectively provided with limiting rib plates 14, the length direction of the limiting rib plate 14 is perpendicular to the groove bottom of the chip slot 11, and each limiting rib plate 14 and the two adjacent inner side walls of the chip slot 11 together form a positioning slot 15 for positioning the longitudinal part 22.

[0042] In another embodiment, the connection between the clamping piece 2 and the chip connecting seat 1 can be realized by the frictional resistance between the two longitudinal parts 22 and the inner side walls of the chip slot 11. By making the maximum distance between the two longitudinal parts 22 greater than the width dimension of the chip slot 11 along the direction of the transverse part 21, the clamping piece 2 can be deformed to approach each other after being inserted into the chip slot 11, so that the two longitudinal parts 22 abut against the two opposite inner side walls of the chip slot 11.

[0043] With reference to Figure 2 , the transverse part 21 is provided with two abutting parts 23, the two abutting parts 23 are located between the two longitudinal parts 22, the length direction of the abutting part 23 is consistent with the length direction of the longitudinal part 22, and the two abutting parts 23 are used to clamp the chip 3 together with the groove bottom of the chip slot 11.

[0044] With reference to Figure 2 and Figure 3, the end of the abutting part 23 away from the transverse part 21 is provided with a notched corner 231, the notched corners 231 opposite to each other are located at the two abutting parts 23, the opposite surfaces of the two notched corners 231 are used for abutting the thickness surface of the chip 3, and the surface of the notched corner 231 towards the bottom wall of the chip slot 11 is used for abutting the width surface of the chip 3. When the clamping member 2 presses the chip 3 at the bottom of the chip slot 11 through the two abutting parts 23, the chip 3 is located in the area between the two notched corners 231, so that the chip 3 is subjected to the positioning effect along the direction parallel to the transverse part 21, which is beneficial to further guarantee the installation position of the chip 3.

[0045] With reference to Figure 2 , the transverse part 21 is provided with a plurality of through holes 211, the opening direction of the through holes 211 is parallel to the slot bottom of the chip slot 11, and the through holes 211 are located between the slot bottom and the slot opening plane of the chip slot 11.

[0046] The implementation principle of the chip fixing structure in the embodiment of the application is as follows: when the chip is installed, the chip is placed in the chip slot 11 of the connecting seat, then the clamping member 2 is inserted into the chip slot 11 along the direction of the slot opening of the chip slot 11, and the two abutting parts 23 of the clamping member 2 abut the chip 3 respectively, when the abutting part 23 abuts the chip 3, the surfaces of the two notched corners 231 towards the bottom of the chip slot 11 abut the width surface of the chip 3, so that the chip is subjected to the combined clamping and positioning effect of the abutting part 23 and the bottom wall of the chip slot 11, and the chip 3 is located in the area between the two notched corners 231, so that the chip 3 is subjected to the limiting effect parallel to the direction of the slot bottom of the chip slot 11, when the subsequent glue is injected into the chip slot 11, the chip 3 is not easy to float under the buoyancy of the glue, and the chip 3 is not easy to displace under the driving of the glue flowing into the chip slot 11, so as to be beneficial to guarantee the position accuracy of the chip 3.

[0047] Embodiment 2

[0048] With reference to Figure 4 , the difference between the embodiment and the embodiment 1 is that the surface of the transverse part 21 of the clamping member 2 perpendicular to the bottom of the chip slot 11 is provided with a plurality of glue points 212, the glue point 212 is a point-shaped hot melt glue with adhesion, each glue point 212 is equidistantly arranged along the length direction of the transverse part 21, the surface of the transverse part 21 is provided with a plurality of recesses 213 for accommodating the glue points 212, the glue points 212 and the recesses 213 are one-to-one correspondingly arranged, and the glue points 212 are simultaneously bonded with the bottom and the inner side wall of the recess 213. The glue point 212 is partially exposed outside the opening of the recess 213, so that the glue point 212 can be contacted with the fingers pinching the chip 3, and under the adhesion of the glue point 212, the chip 3 is not easy to fall off from the fingers pinching the chip 3.

[0049] With reference to Figure 4The surface of the transverse portion 21 is provided with a plurality of point protrusions 214, the point protrusions 214 are located on the same side of the transverse portion 21 as the glue points 212, the size of the protrusion of the point protrusions 214 is greater than the size of the protruding recess 213, the point protrusions 214 and the glue points 212 are alternately arranged along the length direction of the transverse portion 21, and the point protrusions 214 and the glue points 212 are located in the edge area of the transverse portion 21 away from the two longitudinal portions 22.

[0050] When the chip 3 is placed on the desktop or table top through the side provided with the glue points 212, the point protrusions 214 form a gap between the surface of the chip 3 and the placement surface, so that the fingertips of the worker are more easily hooked to the edge of the chip 3 and then the chip 3 is picked up. In addition, the point protrusions 214 can contact the placement surface before the glue points 212, which is beneficial to reduce the situation that the glue points 212 adhere to the placement surface. Furthermore, the point protrusions 214 on the transverse portion 21 can press the surface of the fingers of the pinching clamping piece 2, so that the resistance between the fingers of the pinching clamping piece 2 and the clamping piece 2 is increased, which is convenient for the worker to apply force to the clamping piece 2.

[0051] Referring to Figure 5 , the surfaces of the opposite sides of the two missing corners 231 gradually approach each other in the direction away from the transverse portion 21, and the two abutting portions 23 jointly hold the chip 3 through the missing corner 231, so that the clamping piece 2 can hold the chip 3 and then place the chip 3 into the chip slot 11, which is more convenient.

[0052] Referring to Figure 5 , the bottom of the chip slot 11 is provided with an avoidance slot 16, the avoidance slot 16 has a long and narrow rectangular structure, the length direction of the avoidance slot 16 is arranged along the length direction of the transverse portion 21, and the avoidance slot 16 is used for avoiding the two abutting portions 23 at the same time, and the end portion of the abutting portion 23 away from the transverse portion 21 extends into the avoidance slot 16. By arranging the avoidance slot 16, the end portion of the abutting portion 23 extends into the avoidance slot 16 under the premise that the missing corner 231 sufficiently contacts the thickness surface of the chip 3, so that the chip 3 is fully attached to the bottom of the chip slot 11. In addition, it should be noted that the thickness surface of the chip 3 referred to in the embodiment is the narrow side surface of the chip 3 parallel to the thickness direction.

[0053] Referring to Figure 5 , the avoidance slot 16 penetrates the bottom wall of the chip slot 11, so that the avoidance slot 16 communicates the inside space of the chip slot 11 with the outside space of the chip connecting seat 1, and the surface of the chip connecting seat 1 corresponding to the bottom wall of the chip slot 11 is covered with a sealing film 17 used for sealing the avoidance slot 16, so as to prevent the glue in the chip slot 11 from leaking from the avoidance slot 16.

[0054] In the case that the chip connecting seat 1 has a small volume, the thickness of the chip groove 11 is correspondingly thin. By making the avoiding groove 16 penetrate the groove bottom wall of the chip groove 11, the avoiding groove 16 can be more easily formed without setting a bottom wall of the avoiding groove 16 thinner than the groove bottom of the chip groove 11.

[0055] With reference to Figure 5 The side surface of the one corner 231 close to the other corner 231 and the end surface of the abutting portion 23 away from the horizontal portion 21 form a guide surface 232 for abutting the edge portion of the chip 3. Under the action of the guide surface 232, the chip 3 can more easily enter the area between the two corners 231.

[0056] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A chip fixing structure, characterized in that: The chip connecting seat (1) is provided with a chip slot (11) for accommodating a chip (3), and is provided with a clamping piece (2) located in the chip slot (11), which is detachably connected with the chip connecting seat (1), and is used for clamping the chip (3) together with the bottom wall of the chip slot (11); The clamping piece (2) includes a transverse part (21) and longitudinal parts (22) arranged at both ends of the transverse part (21), and the opposite sides of the two longitudinal parts (22) are respectively provided with first limiting protrusions (221) located at one end of the longitudinal part (22) away from the transverse part (21), and the chip slot (11) is provided with two second limiting protrusions (13) on the inner side wall parallel to the wide face of the clamping piece (2), and the first limiting protrusions (221) are close to the bottom of the chip slot (11) relative to the second limiting protrusions (13), and the second limiting protrusions (13) are used for preventing the first limiting protrusions (221) from being away from the bottom of the chip slot (11); The transverse part (21) is provided with two abutting parts (23), and the two abutting parts (23) are located between the two longitudinal parts (22), the length direction of the abutting part (23) is consistent with the length direction of the longitudinal part (22), and the clamping piece (2) is used for abutting the chip (3); one end of the abutting part (23) away from the transverse part (21) is provided with a notched corner (231), and the notched corners (231) located at the two abutting parts (23) are oppositely arranged, and the opposite surfaces of the two notched corners (231) are respectively used for abutting the thickness surface of the chip (3), and the surface of the notched corner (231) facing the bottom wall of the chip slot (11) is used for abutting the wide surface of the chip (3); The surfaces between the opposite sides of the two notched corners (231) gradually approach each other in the direction away from the transverse part (21), and the bottom of the chip slot (11) is provided with an avoiding slot (16), and the end part of the abutting part (23) away from the transverse part (21) partially extends into the avoiding slot (16).

2. The chip fixing structure according to claim 1, characterized in that: The clamping piece (2) is in a flat structure, and the two opposite side walls of the chip slot (11) are respectively provided with limiting rib plates (14), and the length direction of the limiting rib plate (14) is perpendicular to the bottom of the chip slot (11), and each limiting rib plate (14) and the two adjacent inner side walls of the chip slot (11) together form a positioning slot (15) for positioning the longitudinal part (22).

3. The chip fixing structure according to claim 1, characterized in that: The avoiding slot (16) is in a long strip structure, the length direction of the avoiding slot (16) is arranged along the length direction of the transverse part (21), and the avoiding slot (16) is used for avoiding the two abutting parts (23) at the same time.

4. The chip fixing structure according to claim 1, characterized in that: The transverse part (21) is provided with a plurality of through holes (211), the opening direction of the through holes (211) is parallel to the groove bottom of the chip groove (11), and the through holes (211) are located between the groove bottom and the groove opening plane of the chip groove (11).

5. The chip fixing structure according to claim 1, characterized in that: The transverse part (21) is provided with a plurality of adhesive points (212) on the surface perpendicular to the bottom of the chip groove (11); the surface of the transverse part (21) is provided with a plurality of recesses (213) for accommodating the adhesive points (212), the adhesive points (212) are bonded with the bottom and side wall of the recess (213), and the adhesive points (212) protrude from the opening of the recess (213).

6. The chip fixing structure according to claim 5, characterized in that: The surface of the transverse part (21) is provided with at least two point-shaped protrusions (214), the point-shaped protrusions (214) are located on the same side of the transverse part (21) as the adhesive points (212), and the size of the outward protrusion of the point-shaped protrusions (214) is greater than the size of the protrusion of the adhesive points (212) from the opening of the recess (213).

7. The chip fixing structure according to claim 6, characterized by: The point-shaped protrusions (214) are located in the edge area of the transverse part (21) away from the groove bottom of the chip groove (11).

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