Conductive glue cleaning mechanism

Abstract

The utility model relates to chip testing tool equipment field discloses a kind of conductive glue cleaning mechanism, including driving part and the elastic deformation adhering part for adhering and sticking conductive glue of detachable setting on driving part.In the cleaning process, extrude adhering part deformation, adhering part can fill the gap between the conductive column and conductive column on conductive glue, the surface cleaning effect of conductive glue is good, can be cleaned according to demand multiple times, the negative influence to conductive glue is small, and cost is low.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor chip production and testing equipment, and in particular to a conductive adhesive cleaning mechanism. Background Technology

[0002] In semiconductor chip manufacturing, functional and performance testing is a crucial process for quality control. To prevent chip damage, an increasing number of manufacturers and institutions are replacing elastic pin plates with conductive adhesive in test fixtures and equipment used to connect chips and test circuit boards. During production testing, prolonged or high-frequency use can leave contaminants such as particles and dust on the conductive adhesive. After a certain period, cleaning is necessary. Currently, there are generally two methods for cleaning conductive adhesive: one is chemical cleaning with a brush or cotton swab, and the other is ultrasonic cleaning. Cleaning with chemicals and brushes or cotton balls can easily damage the gold wires used for conduction within the adhesive. Ultrasonic cleaning is costly and complex, and both methods require further improvement in effectiveness. Utility Model Content

[0003] This invention provides a conductive adhesive cleaning mechanism, which solves the problems of existing conductive adhesive cleaning methods that easily damage the conductive adhesive by directly using brushes and chemicals, and the high cost of ultrasonic cleaning instruments.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a conductive adhesive cleaning mechanism, including a driving part and an elastically deformable adhesive part detachably disposed on the driving part for sticking and cleaning conductive adhesive. It has a good surface cleaning effect on conductive adhesive, minimal negative impact, and low cost.

[0005] Furthermore, the drive unit includes an outer sleeve, an elastic buffer portion disposed inside the outer sleeve and limited to elastically moving along the axis of the outer sleeve, and a transmission portion with one end fixed to the elastic buffer portion and the other end extending to the outside of the outer sleeve. The adhesive portion is disposed at the end of the transmission portion located outside the outer sleeve. Elastic buffer movement can be achieved through the elastic buffer portion, effectively preventing damage to the conductive adhesive.

[0006] Furthermore, the outer sleeve includes a main sleeve and a sleeve cap disposed at the upper end of the main sleeve. The main sleeve has a cavity with a regular polygonal cross-section. The lower end of the main sleeve has an axially extending horizontal boss integral with the main sleeve. A vertically penetrating telescopic window is disposed at the center of the horizontal boss. The elastic buffer part includes a buffer body disposed within the cavity and elastically sliding along the axis of the outer sleeve. One end of the transmission part passes through the telescopic window and is fixed to the buffer body. The structure is simple and easy to assemble.

[0007] Furthermore, the elastic buffer section also includes an adjusting part and an elastic element. The adjusting part is disposed on the upper side of the buffer body within the cavity and can slide along the axis of the outer sleeve. The adjusting part is limited within the cavity by the sleeve cover. The buffer body and the adjusting part are respectively provided with corresponding first and second recesses at their opposite ends. The two ends of the elastic element are located within the first and second recesses respectively and elastically abut against the bottom of the first and second recesses. This achieves directional elastic installation of the transmission part, resulting in a simple structure, convenient assembly, and longer service life.

[0008] Furthermore, the transmission unit has a first threaded portion at one end corresponding to the buffer body, and the buffer body has a first threaded hole matching the first threaded portion at the corresponding position of the telescopic window. The transmission unit can be replaced according to actual needs, ensuring that the size of the fixing block is adapted to actual needs, thus enhancing its applicability.

[0009] Furthermore, it also includes a distance limiting structure, which comprises a fixing part, a connecting part, and an abutting part. The lower outer surface of the main sleeve is provided with a second threaded portion. The fixing part has a second threaded hole that matches the second threaded portion. The fixing part is knob-fixed to the lower end of the main sleeve. The connecting part has multiple ends fixed to the fixing part and extending outwards towards the end away from the main sleeve. The abutting part is fixed parallel to the connecting part at the end of the fixing part away from the main sleeve, and the outer diameter of the abutting part is larger than the outer diameter of the fixing part. This further prevents damage to the valuable conductive adhesive and effectively reduces the difficulty of cleaning operations.

[0010] Furthermore, the sleeve cover has a through threaded hole corresponding to the adjusting part, and a matching threaded rod is installed inside the threaded hole. One end of the threaded rod extends rotatably into the cavity and elastically abuts against the end corresponding to the adjusting part. A rotating knob is provided at the end of the threaded rod that protrudes beyond the upper end of the adjusting part. The pressure of the adhesive part on the conductive adhesive during cleaning can be adjusted by adjusting the rotating knob according to actual needs, making it highly practical.

[0011] Furthermore, the lower outer surface of the main sleeve is provided with a mating recess, and the second threaded portion is disposed on the mating recess. This prevents the fixing portion from easily moving upwards under pressure.

[0012] Furthermore, a connecting rod with length markings is provided between the threaded rod and the rotating knob. The length markings allow for intuitive adjustment of the pressure applied to the conductive adhesive by the adhesive portion on the transmission unit during cleaning, making it more convenient to use.

[0013] Furthermore, the adhesive part is made of double-sided silicone with a thickness greater than 2.5 mm. It is low in cost and easy to operate. Attached Figure Description

[0014] Figure 1 This is a front view diagram of the lower side of this utility model;

[0015] Figure 2 This is a schematic diagram of the vertical cross-section of this utility model;

[0016] Figure 3 This is a vertical cross-sectional view of the present invention during the cleaning of the conductive adhesive in the chip test socket.

[0017] The components are labeled as follows: drive unit 100, outer sleeve 110, main sleeve 111, sleeve cover 112, cavity 113, horizontal boss 114, telescopic window 115, elastic buffer unit 120, buffer body 121, adjustment unit 122, elastic element 123, transmission unit 130, threaded rod 140, rotating knob 141, connecting smooth rod 142, length scale 143, adhesive part 200, fixing part 310, connecting part 320, and abutment part 330. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 The conductive adhesive cleaning mechanism shown includes a drive unit 100 and an elastically deformable adhesive part 200 detachably mounted on the drive unit 100 for sticking and cleaning conductive adhesive. In this specific embodiment, the cross-sectional area of ​​the adhesive part 200 is larger than the surface area of ​​the conductive adhesive to be cleaned but not larger than the area of ​​the conductive adhesive exposed in the test seat. The cross-sectional area of ​​the end of the drive unit 100 that is fixed to the adhesive part 200 is not larger than the cross-sectional area of ​​the adhesive part 200. In practice, the drive unit 100 can be manually held and the adhesive part 200 aligned with the conductive adhesive to be cleaned for sticking and cleaning. During the cleaning process, the adhesive part 200 is squeezed and deformed, and the adhesive part 200 can fill the conductive pillars on the conductive adhesive and the gaps between the conductive pillars. This provides good surface cleaning of the conductive adhesive, allows for multiple cleanings as needed, has minimal negative impact on the conductive adhesive, and is low in cost.

[0020] Based on the above, such as Figures 1 to 3As shown, the driving unit 100 includes an outer sleeve 110, an elastic buffer portion 120 disposed inside the outer sleeve 110 and limited to elastically move along the axial direction of the outer sleeve 110, and a transmission portion 130 with one end fixed to the elastic buffer portion 120 and the other end extending outside the outer sleeve 110. The adhesive portion 200 is disposed at the end of the transmission portion 130 located outside the outer sleeve 110. In a specific implementation, when the driving unit 100 drives the adhesive portion 200 to stick and clean the conductive adhesive, when the outer sleeve 110 is driven, the transmission portion 130 connected to the adhesive portion 200 can be elastically buffered and moved through the elastic buffer portion 120, which can effectively avoid damage to the conductive adhesive.

[0021] Based on the above, such as Figures 1 to 3 As shown, the outer sleeve 110 includes a main sleeve 111 and a sleeve cover 112 disposed on the upper end of the main sleeve 111. The main sleeve 111 has a cavity 113 with a regular polygonal cross-section. The lower end of the main sleeve 111 is provided with an axially extending horizontal boss 114 integral with the main sleeve 111. A telescopic window 115 penetrating vertically is provided at the center of the horizontal boss 114. The elastic buffer part 120 includes a buffer body 121 disposed in the cavity 113 and elastically sliding along the axial direction of the outer sleeve 110. One end of the transmission part 130 passes through the telescopic window 115 and is fixed on the buffer body 121. In this specific embodiment, the cross-section of the cavity 113 is a regular quadrilateral, and the cross-section of the buffer body 121 is a regular quadrilateral that matches the size of the cavity 113. In specific implementation, during installation, after the buffer body 121 and other components are installed into the cavity 113 inside the main sleeve 111, the sleeve cover 112 is installed. The structure is simple and the assembly is convenient.

[0022] Based on the above, such as Figures 2 to 3As shown, the elastic buffer 120 also includes an adjusting part 122 and an elastic element 123. The adjusting part 122 is disposed on the upper side of the buffer body 121 inside the cavity 113 and can slide along the axial direction of the outer sleeve 110. The adjusting part 122 is limited in the cavity 113 by the sleeve cover 112. The buffer body 121 and the adjusting part 122 are respectively provided with corresponding first and second recesses at opposite ends. The two ends of the elastic element 123 are located in the first and second recesses respectively and elastically abut against the bottom of the first and second recesses respectively. In this specific embodiment, the cross-section of the cavity 113 is a regular quadrilateral, and the main body cross-section of the adjusting part 122 is a regular quadrilateral that matches the size of the cavity 113. In specific implementation, during installation, the buffer body 121, the elastic element 123 and the adjusting part 122 are sequentially inserted into the cavity 113 inside the main sleeve 111, and then the sleeve cover 112 is installed to complete the assembly. The elastic element 123 is a spring whose two ends elastically abut against the bottom of the first and second recesses. The first and second recesses can limit and protect the spring, realizing the directional elastic installation of the transmission part 130. The structure is simple, the assembly is convenient and the service life is longer.

[0023] Based on the above, such as Figures 2 to 3 As shown, the transmission part 130 has a first threaded portion at one end corresponding to the buffer body 121, and the buffer body 121 has a first threaded hole matching the first threaded portion at the position corresponding to the telescopic window 115. In this specific embodiment, the transmission part 130 includes a connecting rod and a fixing block fixed to one end of the connecting rod. The end of the connecting rod away from the fixing block has a first threaded portion, and the buffer body 121 has a first threaded hole matching the first threaded portion at the position corresponding to the telescopic window 115. The transmission part 130 can be replaced according to actual needs to ensure that the size of the fixing block is adapted to the actual needs, thus enhancing its applicability.

[0024] Based on the above, such as Figures 2 to 3As shown, it also includes a distance limiting structure, which includes a fixing part 310, a connecting part 320, and an abutting part 330. The lower outer surface of the main sleeve 111 is provided with a second threaded part. The fixing part 310 is provided with a second threaded hole that matches the second threaded part. The fixing part 310 is fixed to the lower end of the main sleeve 111 by a knob. The connecting part 320 has multiple parts, one end of which is fixed to the fixing part 310 and the other end extends outward toward the end away from the main sleeve 111. The abutting part 330 is fixed parallel to the end of the fixing part 310 away from the main sleeve 111 through the connecting part 320. The outer diameter of the abutting part 330 is larger than the outer diameter of the fixing part 310. In this specific embodiment, both the fixing part 310 and the abutting part 330 are annular in shape, and the connecting part 320 has three equally spaced fixing parts 310 and abutting parts 330. In specific implementation, when cleaning conductive adhesive, such as when cleaning conductive adhesive in a chip test socket, the main sleeve 111 moves down to the abutting part 330 and abuts against the upper end surface of the chip test, and is thus limited. This allows for precise control of the elastic movement distance of the transmission part 130 driving the adhesive part 200 according to requirements, thereby controlling the pressure of the adhesive part 200 on the conductive adhesive during cleaning. During the cleaning process of conductive adhesive, the operator's control over the adhesive cleaning pressure is limited, further preventing damage to the valuable conductive adhesive and effectively reducing the difficulty of the cleaning operation.

[0025] Based on the above, such as Figures 2 to 3 As shown, a through threaded hole is provided on the sleeve cover 112 at a position corresponding to the adjusting part 122. A matching threaded rod 140 is provided in the threaded hole. One end of the threaded rod 140 extends rotatably into the cavity 113 and elastically abuts against the corresponding end of the adjusting part 122. A rotating knob 141 is provided at the end of the threaded rod 140 that protrudes beyond the upper end of the adjusting part 122. In specific implementation, the position of the adjusting part 122 in the cavity 113 can be adjusted by adjusting the rotating knob 141, controlling the distance between the adjusting part 122 and the buffer body 121, that is, adjusting the elasticity of the buffer body 121 under the elastic element 123. In specific implementation, the pressure of the adhesive part 200 on the conductive adhesive during the cleaning process can be adjusted by adjusting the rotating knob 141 according to actual needs, which is highly practical.

[0026] Based on the above, such as Figures 2 to 3 As shown, a mating recess is provided on the lower outer surface of the main sleeve 111, and the second threaded portion is disposed on the mating recess. In specific implementations, the position of the fixing portion 310 installed at the lower end of the main sleeve 111 can be precisely controlled by the mating recess, making it less likely to move upward under pressure.

[0027] Based on the above, such as Figures 1 to 3As shown, a connecting rod 142 is provided between the threaded rod 140 and the rotating knob 141, and the connecting rod 142 is provided with a length scale 143. In specific implementations, the pressure of the adhesive part 200 on the conductive adhesive on the transmission part 130 during the cleaning process can be intuitively adjusted according to the length scale 143, making it more convenient to use.

[0028] Based on the above, such as Figures 1 to 3 As shown, the adhesive part 200 is made of double-sided silicone with a thickness greater than 2.5 mm. In specific implementations, the double-sided silicone can be purchased on the market and cut to the required size according to actual needs to be bonded to the transmission part 130. It is also easy to replace, does not require additional customization, is low in cost, and is convenient to operate and use.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A conductive adhesive cleaning mechanism, characterized in that: It includes a drive unit (100) and an elastically deformable adhesive part (200) detachably disposed on the drive unit (100) for sticking cleaning conductive adhesive.

2. The conductive adhesive cleaning mechanism according to claim 1, characterized in that: The drive unit (100) includes an outer sleeve (110), an elastic buffer (120) disposed inside the outer sleeve (110) and limited to elastically moving along the axial direction of the outer sleeve (110), and a transmission unit (130) with one end fixed on the elastic buffer (120) and the other end extending to the outside of the outer sleeve (110). The adhesive part (200) is disposed at the end of the transmission unit (130) located outside the outer sleeve (110).

3. The conductive adhesive cleaning mechanism according to claim 2, characterized in that: The outer sleeve (110) includes a main sleeve (111) and a sleeve cover (112) disposed at the upper end of the main sleeve (111). The main sleeve (111) has a cavity (113) with a regular polygonal cross-section. The lower end of the main sleeve (111) is provided with an axially extending horizontal boss (114) integral with the main sleeve (111). The center of the horizontal boss (114) is provided with a telescopic window (115) that penetrates vertically. The elastic buffer part (120) includes a buffer body (121) disposed in the cavity (113) and elastically sliding along the axial direction of the outer sleeve (110). One end of the transmission part (130) passes through the telescopic window (115) and is fixed on the buffer body (121).

4. The conductive adhesive cleaning mechanism according to claim 3, characterized in that: The elastic buffer (120) further includes an adjusting part (122) and an elastic element (123). The adjusting part (122) is disposed on the upper side of the buffer body (121) inside the cavity (113) and can slide along the axial direction of the outer sleeve (110). The adjusting part (122) is limited in the cavity (113) by the sleeve cover (112). The buffer body (121) and the adjusting part (122) are respectively provided with a first recess and a second recess at opposite ends. The two ends of the elastic element (123) are respectively located in the first recess and the second recess and elastically abut against the bottom of the first recess and the second recess respectively.

5. The conductive adhesive cleaning mechanism according to claim 3, characterized in that: The transmission part (130) is provided with a first threaded part at one end corresponding to the buffer body (121), and the buffer body (121) is provided with a first threaded hole that matches the first threaded part at the corresponding position of the telescopic window (115).

6. The conductive adhesive cleaning mechanism according to claim 4, characterized in that: It also includes a distance limiting structure, which includes a fixing part (310), a connecting part (320) and an abutting part (330). The lower outer surface of the main sleeve (111) is provided with a second threaded part. The fixing part (310) is provided with a second threaded hole that matches the second threaded part. The fixing part (310) is fixed to the lower end of the main sleeve (111). The connecting part (320) has multiple ends that are fixed to the fixing part (310) and extend outward toward the end away from the main sleeve (111). The abutting part (330) is fixed parallel to the end of the fixing part (310) away from the main sleeve (111) through the connecting part (320). The outer diameter of the abutting part (330) is larger than the outer diameter of the fixing part (310).

7. The conductive adhesive cleaning mechanism according to claim 6, characterized in that: The sleeve cover (112) is provided with a through threaded hole at a position corresponding to the adjusting part (122). A matching threaded rod (140) is provided in the threaded hole. One end of the threaded rod (140) extends into the cavity (113) and elastically abuts against the corresponding end of the adjusting part (122). A rotating knob (141) is provided at the end of the threaded rod (140) that protrudes beyond the upper end of the adjusting part (122).

8. The conductive adhesive cleaning mechanism according to claim 6, characterized in that: The lower outer surface of the main sleeve (111) is provided with a mating recess, and the second threaded part is provided on the mating recess.

9. A conductive adhesive cleaning mechanism according to claim 7, characterized in that: A connecting rod (142) is provided between the threaded rod (140) and the rotating knob (141), and a length scale (143) is provided on the connecting rod (142).

10. A conductive adhesive cleaning mechanism according to claim 9, characterized in that: The adhesive part (200) is made of double-sided silicone and has a thickness greater than 2.5 mm.

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