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Pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of CGA implantation process-based welding column

A technology of pneumatic transmission and auxiliary devices, applied in measuring devices, using stable shear force to test material strength, using stable tension/pressure to test material strength, etc., can solve the problem that the welding column cannot be pulled out vertically upwards, Difficult to ensure uniform pull-out, unable to measure connection strength, etc., to achieve the effect of easy measurement of pull-off load and solder joint shear strength, uniform force, and high centering accuracy

Active Publication Date: 2020-02-25
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention is on the basis of using a miniature precision drilling machine to plant pillars on solder joints, and aims to solve the problem of measuring the pull-off load and shear of solder joints by using equipment such as small bench vises, push-pull dynamometer jaw clamps, and special shearing instruments. The PCB board with shear strength is not horizontal, so the welding post cannot be pulled out vertically upward, it is difficult to ensure uniform force to pull out the solder joint, and the solder joint with higher connection strength and slightly larger diameter, solder post and solder post / solder interface cannot be measured The fatal flaws of mechanical damage and micro-shaking of the clamping welding post, and then a method of measuring the pull-off load, shear strength, and shear displacement of CGA / solder solder joints by using a cylinder to realize pneumatic transmission

Method used

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  • Pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of CGA implantation process-based welding column
  • Pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of CGA implantation process-based welding column
  • Pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of CGA implantation process-based welding column

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specific Embodiment approach 1

[0036] combine Figure 1 to Figure 16 Describe this embodiment, a pneumatic transmission auxiliary device for measuring the pull-off load and solder joint shear performance of a CGA post planting process described in this embodiment includes a stage, a positioning plate mechanism for the stage, and a positioning hanger components, push-pull force gauge components, clamp body components and push knife components, power device components, top plate and bottom plate components, etc., the clamp body components and tension measurement components are installed on the positioning hanger mechanism, and the positioning hanger is installed on the top plate On the assembly, the clamp body assembly is located above the stage assembly, and the power unit 36 ​​is installed above the top plate; the centering action of the welding column and the drill chuck assembly is realized through the movement of the stage assembly and the power unit 37; through the clamp body assembly, the The vertical ...

specific Embodiment approach 2

[0038] combine Figure 6 to Figure 9This embodiment is described. The object stage, positioning plate assembly and vertical plate assembly of a pneumatic transmission auxiliary device for measuring the pull-off load of the welding post in the CGA post planting process and the shear performance of the solder joint in this embodiment include the loading Table drawing side 1, CGA / solder solder joints and PCB board 2, stage main body 3, stage shear measurement 4, circular groove at the bottom of the stage 5, groove 6, vertical plate main body 42, sliding tight Fixing bolt 43, vertical plate bolt sliding groove 44, positioning bolt 7, square through hole 8, positioning plate 9 and screw hole 10, the CGA / solder solder joint and PCB board 2 are connected through the groove 6 on the stage for drawing and testing. 1 or on the shear side 4 of the stage, the main body 3 of the stage and the shear side 4 of the stage are symmetrically welded on the drawing side 1 of the main body 3 of the...

specific Embodiment approach 3

[0041] combine Figure 10 to Figure 12 Describe this embodiment, the positioning hanger assembly, the push-pull force gauge assembly and the top plate assembly of a pneumatic transmission auxiliary device for measuring the pull-off load of the welding post in the CGA post planting process and the shear performance of the solder joint described in this embodiment Including bolt holes 14 on both sides of the positioning hanger, main body of the positioning hanger 11, positioning bolts 12, bolt holes 13, bolt holes 14 of the positioning hanger, circular slot holes 15, fastening bolts 16, push-pull gauge 17, push-pull gauge Container 18, fixing bolt 19, push-pull gauge fastening mechanism 20, threaded hole 21, threaded hole 22, push-pull gauge hook nut 23, push-pull gauge hook 24, air guide tube port 31, power unit 37, threaded hole 38 top plate Component square groove hole 39, top plate 40, fastening bolt 41 and square groove hole, push-pull gauge hook nut 23 is set on push-pull ...

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Abstract

The invention provides a pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of a CGA implantation process-based welding column and relates to apneumatic transmission device using an air cylinder and specifically a pneumatic transmission auxiliary device for measuring pull-off load and welding point shearing performance of a welding column. In existing pull tests, a PCB cannot be clamped horizontally, the welding column is vulnerable to mechanical damage, the welding column cannot be kept upward vertically and cannot be pulled out under even force at uniform speed, and a welding point with large diameter cannot be tested. The invention solves shearing-related problems in the prior art. The pneumatic transmission auxiliary device comprises a carrying table component, a positioning plate component, a positioning hanger component, a push-pull gauge component, a fixture body component, a push knife component, a bottom plate and top plate component, and a vertical plate component, the positioning hanger component is installed in a square groove of the top plate component, and the carrying table component is installed in the positioning plate component and moves upward and downward vertically at uniform speed under the assist of the power device (air cylinder). The pneumatic transmission auxiliary device belongs to the field ofelectronic devices.

Description

technical field [0001] The invention relates to a pneumatic transmission device using a cylinder, in particular to an auxiliary device for measuring the pull-off load of a welding column and the shear performance of a welding spot, and belongs to the field of electronic products. Background technique [0002] CGA interconnection means that in the solder ball, the solder column is implanted into the solder ball through the relevant column planting equipment. The feature of this interconnection form is that the 10Sn90Pb high Pb solder column is replaced by the solder column, which reduces environmental pollution to a certain extent; in addition, the CGA interconnection is conducive to improving the packaging density and has better mechanical properties, heat dissipation and electrical properties. During the service process, part of the stress can also be released through the deformation of the welding post, so it is widely used in the field of microelectronic packaging. [00...

Claims

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Application Information

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IPC IPC(8): G01N3/10G01N3/24G01N3/06
CPCG01N3/10G01N3/24G01N3/06G01N2203/0044G01N2203/0676G01N2203/0682
Inventor 赵智力王迪肖凯曹荣楠张海洋
Owner HARBIN UNIV OF SCI & TECH
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