Non-contact horizontal conveying structure for active area of IC (integrated circuit) support plate

Abstract

An IC carrier plate effective area non-contact horizontal conveying structure comprises a wheel shaft, a plurality of idler wheels are fixedly arranged on the wheel shaft in the axial direction of the wheel shaft and used for supporting an ineffective area of an IC carrier plate, each idler wheel comprises a wheel piece part, a supporting part is arranged on the outer wall of each wheel piece part in the circumferential direction of the wheel piece part, the supporting parts and the wheel piece parts are integrally formed, and the width of each supporting part is smaller than that of each wheel piece part; the supporting part and the wheel piece part are integrally formed, the problem that deviation occurs in cooperation of the supporting part and the wheel piece part due to long-time use is effectively avoided, the width of the supporting part is smaller than that of the wheel piece part, the contact area between the rolling wheel and the IC carrier plate is effectively reduced, an effective area on the IC carrier plate is avoided, scratching of the effective area of the IC carrier plate is avoided, and the service life of the rolling wheel is prolonged. And the non-contact with the effective area of the IC carrier plate is realized while the support transmission of the IC carrier plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor packaging, in particular to a non-contact horizontal transmission structure of an effective area of ​​an IC carrier. Background Art

[0002] Due to the particularity of semiconductor chip packaging, the semiconductor chip needs to be packaged on an IC carrier, and a package body is formed on the IC carrier to protect the semiconductor chip. The IC carrier needs to be transported using rollers during production.

[0003] There are generally two types of existing IC carrier transport. One is a method of using rollers in conjunction with a clamping frame (such as publication number CN116801489A), in which the IC carrier is placed in the clamping frame, and the clamping frame is used to protect the IC carrier. In this IC carrier transport method, the rollers are generally set at two points, and the clamping frame is supported and transported by the rollers. However, this transport method requires special equipment to place the IC carrier in the clamping frame or take it out of the clamping frame to achieve automation, and the cost of use is high. Another transport method is to use rollers to directly transport the IC carrier. Due to the large span, the rollers in this transport method are generally set at three points.

[0004] The existing method of directly transmitting the IC carrier using a roller generally arranges a rubber ring on the side of the roller to reduce the contact area between the roller and the invalid area (also known as the non-effective area) of the IC carrier, so as to achieve the purpose of non-contact with the effective area of ​​the IC carrier. However, this method has the problem of poor size matching. Specifically, the rubber ring has poor corrosion resistance. After long-term use, the rubber ring is prone to aging and deformation, and the supporting stability becomes poor, which causes the position of the rubber ring to change, and it is easy to contact with the effective area of ​​the IC carrier, causing scratches on the IC carrier. Utility Model Content

[0005] In order to solve the technical problems in the prior art of directly transmitting IC carriers using rollers, such as easy deformation of rubber rings, easy scratching of IC carriers and poor supporting stability, the utility model provides a non-contact horizontal transmission structure for the effective area of ​​IC carriers.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a non-contact horizontal transmission structure for an effective area of ​​an IC carrier, comprising: an axle, a plurality of rollers are fixedly arranged on the axle along its axial direction, the rollers are used to support an ineffective area of ​​the IC carrier, the rollers comprise a wheel sheet portion, a support portion is arranged on the outer wall of the wheel sheet portion along its circumferential direction, the support portion and the wheel sheet portion are integrally formed, the width of the support portion is smaller than the width of the wheel sheet portion, the support portion and the wheel sheet portion are integrally formed, and the problem of deviation in the matching between the support portion and the wheel sheet portion due to long-term use is effectively avoided, the width of the support portion is smaller than the setting mode of the wheel sheet portion, and the contact area between the roller and the IC carrier is effectively reduced to avoid the effective area on the IC carrier, avoid scratches on the effective area of ​​the IC carrier, and realize non-contact with the effective area of ​​the IC carrier while ensuring the support and transmission of the IC carrier.

[0008] Preferably, the cross section of the support portion is hemispherical, which reduces the contact area between the roller and the IC carrier.

[0009] Preferably, the cross-section of the support portion is an isosceles trapezoid, which reduces the contact area between the roller and the IC carrier while increasing the contact area between the support portion and the IC carrier, thereby avoiding the effective area on the IC carrier and preventing scratches on the effective area of ​​the IC carrier, while effectively improving the support stability of the IC carrier.

[0010] Preferably, the wheel piece portion is sleeved on the wheel axle, and the wheel piece portion and the wheel axle are fixed by a pin shaft, which facilitates the installation and removal of the roller.

[0011] Preferably, the end of the pin is lower than the supporting portion, which effectively prevents the pin from scratching the IC carrier.

[0012] Preferably, the rollers are arranged at three points on the axle to ensure the transmission stability of the IC carrier.

[0013] It can be seen from the above technical solutions that the advantages of the utility model are:

[0014] 1. The support part and the wheel part are integrally formed, which effectively avoids the problem of deviation in the matching between the support part and the wheel part due to long-term use. The width of the support part is smaller than that of the wheel part, which effectively reduces the contact area between the roller and the IC carrier to avoid the effective area on the IC carrier and avoid scratches on the effective area of ​​the IC carrier. The wheel part facilitates the fixed connection with the wheel axle to ensure the overall strength and thus ensure its support stability.

[0015] 2. The cross section of the support portion is an isosceles trapezoid, which reduces the contact area between the roller and the IC carrier while increasing the contact area between the support portion and the IC carrier, thereby avoiding the effective area on the IC carrier and preventing scratches on the effective area of ​​the IC carrier, while effectively improving the support stability of the IC carrier.

[0016] 3. The end of the pin is lower than the supporting part, which effectively prevents the pin from scratching the IC carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the non-contact horizontal conveying structure according to one or more embodiments of the present invention;

[0019] Figure 2 It is a schematic cross-sectional structure diagram of a first roller according to one or more embodiments of the utility model;

[0020] Figure 3 is a schematic cross-sectional structure diagram of a second roller according to one or more embodiments of the present invention;

[0021] The components represented by the reference numerals in the figure are:

[0022] 1. axle; 2. roller; 21. wheel part; 22. support part; 23. pin shaft. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] In a typical implementation of the present invention, Figure 1-Figure 3 As shown, a non-contact horizontal conveying structure of an effective area of ​​an IC carrier is proposed, comprising: an axle 1 and a roller 2 fixedly arranged on the axle 1, wherein the roller 2 can rotate around an axis driven by the axle 1 to clamp and convey the IC carrier.

[0025] Specific as Figure 1 As shown, there are three rollers 2, which are arranged at three points on the axle 1. Specifically, the three rollers 2 are arranged at intervals along the axial direction of the axle 1 so that the three rollers 2 are located at different positions. The rollers 2 are used to place IC carriers to realize the transportation and transfer of the IC carriers.

[0026] It can be understood that the setting position of roller 2 is determined according to the size of the actual IC carrier and the position of the invalid area on the IC carrier. Roller 2 is located directly below the invalid area of ​​the IC carrier so that roller 2 can contact the invalid area to realize the transmission of the IC carrier. Roller 2 does not contact the effective area of ​​the IC carrier to avoid scratches on the effective area of ​​the IC carrier.

[0027] The roller 2 includes a wheel portion 21 and a support portion 22, wherein the support portion 22 is fixedly arranged on the outer wall of the wheel portion 21, and the support portion 22 is arranged along the circumferential direction of the wheel portion 21, and the support portion 22 and the wheel portion 21 are integrally formed, thereby effectively avoiding the problem of deviation in the matching between the support portion 22 and the wheel portion 21 due to long-term use.

[0028] like Figure 2 As shown, the cross section of the support portion 22 is hemispherical, and the width of the support portion 22 is much smaller than the width of the wheel portion 21. The support portion 22 with a hemispherical cross section can effectively reduce the contact area between the roller 2 and the IC carrier to avoid the effective area on the IC carrier and avoid scratches on the effective area of ​​the IC carrier. While ensuring the support and transmission of the IC carrier, non-contact with the effective area of ​​the IC carrier is achieved.

[0029] The width of the wheel portion 21 is much greater than the width of the support portion 22 , which can facilitate the fixed connection between the roller 2 and the axle 1 , while ensuring the overall strength and thus the support stability thereof, so as to be suitable for IC carriers of different weights.

[0030] In other embodiments, Figure 3 As shown, the cross section of the support portion 22 may also be an isosceles trapezoid. In this case, the width of the support portion 22 is still much smaller than the width of the wheel portion 21, and the top of the support portion 22 is a flat structure instead of being Figure 2 The arc shown is compared to the hemispherical support portion 22. When the width of the isosceles trapezoidal support portion 22 is the same as the width of the hemispherical support portion 22, the effect of the isosceles trapezoidal support portion 22 for reducing the contact area between the roller 2 and the IC carrier is the same as that of the hemispherical support portion 22. At the same time, the contact area between the support portion 22 and the IC carrier is increased, thereby avoiding the effective area on the IC carrier and preventing scratches on the effective area of ​​the IC carrier, while effectively improving the support stability of the IC carrier.

[0031] like Figure 2 , Figure 3 As shown, pin holes are provided on the wheel portion 21 and the axle 1, the wheel portion 21 is sleeved on the axle 1, and the wheel portion 21 is fixedly connected to the axle 1 through a pin 23, and the end of the pin 23 is lower than the support portion 22, thereby avoiding contact between the pin 23 and the IC carrier, preventing the pin 23 from scratching the IC carrier.

[0032] In this embodiment, the roller 2 is made entirely of materials such as PP and Teflon that are easy to cut and have good tolerance (such as acidity, alkali, oxidation, UV environment, etc.), thereby ensuring the service life of the roller 2.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-contact horizontal transmission structure for an effective area of ​​an IC carrier, comprising: A wheel axle (1), a plurality of rollers (2) are fixedly arranged on the wheel axle (1) along its axial direction, characterized in that the rollers (2) are used to support the ineffective area of ​​the IC carrier, the rollers (2) include a wheel sheet portion (21), a support portion (22) is arranged on the outer wall of the wheel sheet portion (21) along its circumferential direction, the support portion (22) and the wheel sheet portion (21) are integrally formed, and the width of the support portion (22) is smaller than the width of the wheel sheet portion (21).

2. The IC carrier effective area non-contact horizontal transmission structure according to claim 1, characterized in that: The cross section of the support portion (22) is hemispherical.

3. The IC carrier effective area non-contact horizontal transmission structure according to claim 1, characterized in that: The cross section of the supporting portion (22) is an isosceles trapezoid.

4. The IC carrier effective area non-contact horizontal transmission structure according to claim 1, characterized in that: The wheel piece portion (21) is sleeved on the wheel axle (1), and the wheel piece portion (21) and the wheel axle (1) are fixed via a pin shaft (23).

5. The IC carrier effective area non-contact horizontal transmission structure according to claim 4, characterized in that: The end of the pin shaft (23) is lower than the supporting portion (22).

6. The IC carrier effective area non-contact horizontal transmission structure according to claim 1, characterized in that: The roller (2) is arranged at three points on the wheel axle (1).

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