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Sampling needle electrode and welded IGBT module unit

A sampling electrode, welding technology, applied in the direction of electrical components, circuits, electrical solid devices, etc., to achieve the effect of ensuring welding quality, increasing activity margin, and improving reliability

Inactive Publication Date: 2014-03-26
XIAN YONGDIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the object of the present invention is to provide a sampling electrode needle, which can solve the problems of welding quality and subsequent tension and tension, thereby ensuring the reliability of the module and improving the production efficiency of the module

Method used

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  • Sampling needle electrode and welded IGBT module unit
  • Sampling needle electrode and welded IGBT module unit

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Effect test

Embodiment Construction

[0024] The invention discloses a sampling electrode needle, which can solve the problems of welding quality and subsequent tension and tension, thereby ensuring the reliability of the module and improving the production efficiency of the module.

[0025] The sampling electrode needle includes a first connecting electrode and a second connecting electrode, and the sampling electrode needle is a coiled needle-like structure.

[0026] Further, the sampling electrode needle also includes an intermediate connecting portion located between the first connecting electrode and the second connecting electrode, and the intermediate connecting portion integrally spirals along the same diameter from one end of the first connecting electrode or the second connecting electrode extending to one end of the second connection electrode or the first connection electrode.

[0027] Further, the sampling electrode needle is a sampling electrode needle made of gold-plated copper.

[0028] The invent...

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Abstract

The invention discloses a sampling needle electrode. The sampling needle electrode includes a first connecting electrode and a second connecting electrode, and adopts a spiral needle structure made of gold-plated copper. The welding quality of the sampling needle electrode is improved, so as to improve the product quality and reliability, and further achieve a higher productivity; meanwhile, the sampling needle electrode has a larger movement allowance, so as to prevent welding points from dropping during the application of a module due to thermal expansion and contraction. The structural design facilitates pulling and other operations in subsequent procedures, so as to achieve easy operations.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a sampling electrode needle for leading a pole of a chip to an auxiliary electrode. Background technique [0002] Insulated Gate Bipolar Transistor (IGBT) has the characteristics of high frequency, high voltage, high current, especially easy to turn on and off. The representative product has been developed to the sixth generation so far, and the commercialization has been developed to the fifth generation. [0003] At present, insulated gate bipolar transistors have been widely used in various industries of the national economy. The IGBT module is a packaging form of the IGBT chip, and the modularized IGBT is lightweight and convenient, and is more conducive to market application. [0004] At present, in the packaging process of the welded IGBT module, a subunit needs to be produced, and components such as the IGBT chip, diode chip, resistor, and sampling electrode needl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/49H01L27/06
Inventor 寇庆娟
Owner XIAN YONGDIAN ELECTRIC
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