Microwave assembly carrier eutectic positioning jig

Abstract

The utility model relates to the technical field of work fixtures, and discloses a microwave assembly carrier eutectic positioning jig which comprises a brass block (1), a first steel sheet (4), a second steel sheet (6), a clamping cover (8) and a plurality of vibrating needles (7), the brass block (1) is located at the bottom, the first steel sheet (4) and the second steel sheet (6) are sequentially stacked on the brass block (1) from bottom to top, and in addition, the clamping cover (8) is clamped on the clamping cover (8). A space for accommodating and fixing a plurality of carrier combinations (5) is formed between the first steel sheet (4) and the second steel sheet (6); the clamping cover (8) is located at the top, the multiple elastic needles (7) are installed on the clamping cover (8), and when the clamping cover (8) is detachably and fixedly connected to the brass block (1), the multiple elastic needles (7) can apply pressure to the second steel sheet (6) and the first steel sheet (4) at the same time so as to clamp the multiple carrier combinations (5) at the same time. The precision of the relative position of the chip and the carrier in the assembly process is improved, the yield is improved, and the assembly work is efficient and reliable.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically to a microwave component carrier eutectic positioning fixture. Background Technology

[0002] As microwave components continue to evolve towards miniaturization, high density, and high reliability, higher demands are being placed on their assembly processes. In existing technologies, whether manual eutectic bonding or eutectic furnace bonding is employed, the vast majority of operations are still purely manual. This is especially true on complex substrates where not only chips but also other components need to be placed with precise positioning, as the accuracy of their relative positions directly impacts the next process. Therefore, existing technologies are inefficient, have a high error tolerance, result in high labor intensity and operational difficulties for on-site personnel, and ultimately lead to low product yields. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of low precision in manual operation, which affects work efficiency and leads to low yield in the existing technology. It provides a microwave component carrier eutectic positioning fixture, which improves the accuracy of the relative position of the chip and the carrier in the assembly process, increases the yield, and makes the assembly work efficient and reliable.

[0004] To achieve the above objectives, this utility model provides a microwave component carrier eutectic positioning fixture, which includes a brass block, a first steel sheet, a second steel sheet, a retaining cover, and multiple spring pins. The brass block is located at the bottom, and the first and second steel sheets are stacked on the brass block from bottom to top, with a space between the first and second steel sheets forming a space for accommodating and fixing multiple carrier combinations. The retaining cover is located at the top, and multiple spring pins are mounted on the retaining cover. When the retaining cover is detachably fixed to the brass block, the multiple spring pins can simultaneously apply pressure toward the second and first steel sheets to clamp the multiple carrier combinations at the same time.

[0005] Preferably, the brass block has four symmetrically arranged cover placement bosses, and the top surface of the cover placement bosses has cover locking threaded holes. By passing a locking screw through the cover fixing block and screwing it into the cover locking threaded holes, the cover fixing block can be rotatably fixed to the cover placement bosses.

[0006] Preferably, both the first and second steel sheets have notches formed on their edges that can mate with the mounting boss of the card cover.

[0007] Preferably, the brass block has at least one pair of spare fixing holes and at least one pair of high-precision circular pins located on the diagonal at the corners. Furthermore, the first steel plate has a first steel plate limiting hole that mates with the high-precision circular pins, the second steel plate has a second steel plate limiting hole that mates with the high-precision circular pins, and both the first and second steel plates have through holes that mate with the spare fixing holes.

[0008] Preferably, a plurality of carrier placement slots are formed on the first steel sheet, and a plurality of chip assembly placement slots are formed on the second steel sheet.

[0009] Preferably, the brass block has a groove for the temperature sensing wire, which is used to place the temperature sensing wire of the eutectic furnace.

[0010] Preferably, the cover is provided with a plurality of spring pin mounting holes for mounting spring pins.

[0011] Preferably, the thickness of the first steel sheet and the second steel sheet is 0.2-0.4 mm.

[0012] Preferably, the edges of the notch are rounded.

[0013] Preferably, a pad is provided between the card cover fixing block and the top surface of the card cover placement boss.

[0014] According to the above technical solution, this utility model utilizes brass blocks to provide good heat conduction, double-layer steel sheets to accurately position the device to be eutecticized, and the elasticity of the detachable cover to ensure that it will not shift during transportation and transfer, thereby improving the yield rate of this process, ensuring good reliability, facilitating operation, and greatly improving work efficiency. Attached Figure Description

[0015] Figure 1 This is an exploded view of a microwave component carrier eutectic positioning fixture provided by this utility model;

[0016] Figure 2 This is a diagram showing the usage state of a microwave component carrier eutectic positioning fixture provided by this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 1- Brass block 2- Clip cover fixing block

[0019] 3-Locking screw 4-First steel plate

[0020] 5-Carrier assembly 6-Second steel sheet

[0021] 7-Spring pin 8-Clip cover

[0022] 101-Temperature sensor groove; 102-Spare mounting hole

[0023] 103-Clamping threaded hole for locking the clamp; 104-Clamping boss for placing the clamp.

[0024] 105 - High-precision circular pin; 401 - Carrier placement slot

[0025] 402 - First steel sheet limiting hole; 601 - Chip assembly placement slot

[0026] 602 - Second steel plate limiting hole; 801 - Spring pin mounting hole Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "top," and "bottom" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the terminology.

[0029] See Figure 1 and Figure 2 This utility model provides a microwave component carrier eutectic positioning fixture, which includes a brass block 1, a first steel sheet 4, a second steel sheet 6, a retainer 8, and a plurality of spring pins 7. The brass block 1 is located at the bottom, and the first steel sheet 4 and the second steel sheet 6 are stacked on the brass block 1 from bottom to top. A space is formed between the first steel sheet 4 and the second steel sheet 6 to accommodate and fix a plurality of carrier assemblies 5. The retainer 8 is located at the top, and the plurality of spring pins 7 are mounted on the retainer 8. When the retainer 8 is detachably fixed to the brass block 1, the plurality of spring pins 7 can simultaneously apply pressure toward the second steel sheet 6 and the first steel sheet 4 to clamp the plurality of carrier assemblies 5 at the same time.

[0030] Through the above technical solution, the brass block 1 provides good heat conduction, the double-layer steel sheet can accurately position the device to be eutecticized, and the elasticity of the detachable cover 8 can ensure that it will not shift during transportation and transfer, thereby improving the yield rate of this process, ensuring good reliability, facilitating operation, and greatly improving work efficiency.

[0031] In this embodiment, in order to facilitate the installation and fixation of the clip cover 8, preferably, the brass block 1 is provided with four clip cover placement bosses 104 in pairs symmetrically arranged. The top surface of the clip cover placement bosses 104 is formed with clip cover locking threaded holes 103. By passing the locking screw 3 through the clip cover fixing block 2 and screwing it into the clip cover locking threaded holes 103, the clip cover fixing block 2 can be rotatably fixed to the clip cover placement bosses 104.

[0032] During the process of stacking the first steel sheet 4 and the second steel sheet 6 onto the brass block 1, to prevent scratches, damage, or even deformation caused by violent impact between the first steel sheet 4 and the second steel sheet 6 and the outer surface of the card holder placement boss 104 during manual operation, which would affect subsequent operations, preferably, notches are formed on the edges of both the first steel sheet 4 and the second steel sheet 6 to mate with the card holder placement boss 104. Thus, when stacking the first steel sheet 4 and the second steel sheet 6, it is only necessary to align the notches with the shape of the card holder placement boss 104 to smoothly place the first steel sheet 4 and the second steel sheet 6 onto the brass block 1.

[0033] In this embodiment, to facilitate the fixing of the eutectic furnace as needed and to limit the first steel sheet 4 and the second steel sheet 6 placed on the brass block 1 to prevent displacement during transportation, preferably, the brass block 1 has at least one pair of spare fixing holes 102 and at least one pair of high-precision circular pins 105 located on the diagonal at the corners. Furthermore, the first steel sheet 4 has a first steel sheet limiting hole 402 that mates with the high-precision circular pin 105, and the second steel sheet 6 has a second steel sheet limiting hole 602 that mates with the high-precision circular pin 105. Both the first steel sheet 4 and the second steel sheet 6 also have through holes that mate with the spare fixing holes 102. Simultaneously, the brass block 1 has a temperature sensing wire groove 101 for placing the temperature sensing wire of the eutectic furnace.

[0034] In addition, in order to ensure that the multiple carrier combinations 5 placed between the first steel sheet 4 and the second steel sheet 6 do not shift in position and maintain good stability, it is preferable that multiple carrier placement slots 401 are formed on the first steel sheet 4 and multiple chip combination placement slots 601 are formed on the second steel sheet 6.

[0035] In this embodiment, in order to enable the card cover 8 and the spring pin 7 to provide a stable and uniform radial elastic pressure to the first steel plate 4 and the second steel plate 6, the multiple carrier combinations 5 located between the first steel plate 4 and the second steel plate 6 are also subjected to uniform force and have higher stability. Preferably, the card cover 8 is evenly provided with multiple spring pin mounting holes 801 for mounting the spring pin 7.

[0036] In this embodiment, the thickness of the first steel sheet 4 and the second steel sheet 6 is preferably 0.2-0.4 mm. Steel sheets of this thickness are lightweight and easy to process. The first steel sheet limiting hole 402 and the second steel sheet limiting hole 602 can be made on the steel sheet using a high-precision laser.

[0037] In order to avoid the sharp steel sheet from cutting the operator's hands during manual operation, and to prevent the sharp edge of the steel sheet from cutting the card holder protrusion 104, it is preferable to have rounded corners on the edges of the notches on the first steel sheet 4 and the second steel sheet 6.

[0038] Furthermore, in order to adjust the pressure of the spring needle 7 according to the different usage requirements of the carrier combination 5, it is preferable to provide a pad between the top surface of the retainer fixing block 2 and the retainer placement boss 104. In this way, the pressure of the spring needle 7 can be easily and quickly changed by increasing or decreasing the number of pads.

[0039] In actual use, the spring pin 7 is fixed to the cover 8 to make it a whole. The cover fixing block 2 is locked into the cover locking screw hole 103 using the locking screw 3. The temperature sensing wire of the eutectic furnace is placed in the temperature sensing wire groove 101. The brass block 1 has a high-precision circular pin 105 that cooperates with the first steel plate limiting hole 402 and the second steel plate limiting hole 602 for limiting: when placing the carrier assembly 5, the cover fixing block 2 should be rotated so that the first steel plate 4 can be easily placed. When placing the first steel plate 4, the high-precision circular pin 105 is used for limiting. At this time, the carrier assembly 5 is then placed in and limited and fixed by the carrier placement groove 401. Similarly, the placement steps for the second steel sheet 6 are the same. All other components on the carrier assembly 5, excluding the carrier itself, need to be positioned relative to each other according to the chip assembly placement slot 601 after the second steel sheet 6 is securely placed. Once everything is ready, place the previously assembled spring pin 7 and cover 8 on the cover placement protrusion 104. At this time, the spring pin 7 will provide radial elastic pressure to the first steel sheet 4 and the second steel sheet 6, ensuring that the steel sheets will not fall or shift. Finally, rotate the cover fixing block 2 to firmly fix the spring pin 7 and cover 8 assembly to their corresponding positions on the brass block 1. Similarly, when a new carrier assembly needs to be replaced during use, simply rotate the cover fixing block 2 to easily remove the first steel sheet 4 and the second steel sheet 6. Thus, when different carriers require different chip arrangements, the corresponding two layers of steel sheets can be replaced as needed and reused. In summary, this microwave component carrier eutectic positioning fixture solves the welding method for various carriers and complex chip arrangements. It designs corresponding steel sheets for different arrangements to meet the high-precision requirements of the relative position of the chip carrier, saving time and controlling costs in terms of precise chip carrier alignment and tedious rework.

[0040] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A microwave component carrier eutectic positioning fixture, characterized in that, The microwave component carrier eutectic positioning fixture includes a brass block (1), a first steel sheet (4), a second steel sheet (6), a retainer (8), and a plurality of spring pins (7). The brass block (1) is located at the bottom. The first steel sheet (4) and the second steel sheet (6) are stacked on the brass block (1) from bottom to top. A space is formed between the first steel sheet (4) and the second steel sheet (6) to accommodate and fix a plurality of carrier assemblies (5). The retainer (8) is located at the top. A plurality of spring pins (7) are mounted on the retainer (8) and are configured such that when the retainer (8) is detachably fixed to the brass block (1), the plurality of spring pins (7) can simultaneously apply pressure toward the second steel sheet (6) and the first steel sheet (4) to simultaneously clamp the plurality of carrier assemblies (5).

2. The microwave assembly carrier eutectic positioning fixture of claim 1, wherein, The brass block (1) is provided with four symmetrical card holder placement bosses (104). The top surface of the card holder placement boss (104) is formed with a card holder locking threaded hole (103). By passing the locking screw (3) through the card holder fixing block (2) and screwing it into the card holder locking threaded hole (103), the card holder fixing block (2) can be rotatably fixed to the card holder placement boss (104).

3. The microwave assembly carrier eutectic positioning fixture of claim 2, wherein, Both the first steel sheet (4) and the second steel sheet (6) have notches formed on their edges that can cooperate with the card holder placement boss (104).

4. The microwave component carrier eutectic positioning fixture according to claim 3, characterized in that, At the corner of the brass block (1), there is at least one pair of spare fixing holes (102) located on the diagonal and at least one pair of high-precision circular pins (105) located on the diagonal. Furthermore, the first steel sheet (4) has a first steel sheet limiting hole (402) that cooperates with the high-precision circular pin (105), and the second steel sheet (6) has a second steel sheet limiting hole (602) that cooperates with the high-precision circular pin (105). Both the first steel sheet (4) and the second steel sheet (6) also have through holes that cooperate with the spare fixing holes (102).

5. The microwave component carrier eutectic positioning fixture according to any one of claims 1-4, characterized in that, The first steel sheet (4) has multiple carrier placement slots (401), and the second steel sheet (6) has multiple chip assembly placement slots (601).

6. The microwave component carrier eutectic positioning fixture according to any one of claims 1-4, characterized in that, The brass block (1) has a temperature sensing line groove (101) for placing the temperature sensing line of the eutectic furnace.

7. The microwave component carrier eutectic positioning fixture according to any one of claims 1-4, characterized in that, The cover (8) is evenly provided with a plurality of spring pin mounting holes (801) for mounting the spring pin (7).

8. The microwave component carrier eutectic positioning fixture according to any one of claims 1-4, characterized in that, The thickness of the first steel sheet (4) and the second steel sheet (6) is 0.2-0.4 mm.

9. The microwave component carrier eutectic positioning fixture according to claim 3, characterized in that, The edges of the notch are rounded.

10. The microwave component carrier eutectic positioning fixture according to any one of claims 1-4, characterized in that, A pad is provided between the top surface of the card cover fixing block (2) and the card cover placement boss (104).

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