Suspended gold wire ball bonding workbench

Abstract

The invention discloses a suspended gold wire ball bonding workbench used for connecting a gas sensor chip and a tube shell. The suspended gold wire ball bonding workbench comprises a shell, and a central column, a suction base, a suction column, a heating column, a sliding block, a pressing block, a horizontal compression spring, a vertical compression spring, a pressure plate, a pressure rod, a tube shell movable clamping piece, a tube shell fixed clamping piece and a fixed clamping piece base. The suction base is provided with a suction joint communicated with an outer suction device. The lower portion of the suction column is communicated with the suction base, the top of the heating column is used for placing the chip, and a chip heating solenoid used for heating the chip is arranged at the periphery on the upper portion of the suction column. The heating column is arranged on the outer layer of the suction column, the top of the heating column is used for placing the tube shell, and a tube shell heating solenoid used for heating the tube shell is arranged at the periphery of the upper portion of the heating column. The top of the suction column is higher than that of the heating column. By the suspended gold wire ball bonding workbench, suction fixing is adopted, chip suspended fixing and heating are achieved, disassembly and direction adjustment are facilitated, and physical damages to the chip are less.

Description

technical field [0001] The present invention relates to a workbench for gold wire ball welding, more specifically, to a heating and fixing workbench for gold wire ball welding in the suspended state of a gas sensor gas sensor chip, which is used to assist a gold wire ball welding machine to transfer gas The pins of the sensitive chip and the shell are connected and fixed by gold wires. Background technique [0002] At present, gas sensors are widely used in industrial production, daily life, environmental detection and national defense. Thin-film gas sensors have become an important member of gas sensors due to their high sensitivity, fast response, and low operating temperature. In order to make the air flow around the gas sensor chip of the film type gas sensor smooth, and the heating heat is not transmitted to the base of the package shell during operation, the gas sensor chip can be suspended above the base of the package tube. This suspension design brings great diffic...

AI Technical Summary

Problems solved by technology

This suspended design brings great difficulties to the positioning, clamping and heating of the gas sensor chip

Using the traditional mechanical clamping method, it is difficult to position, load and unload, heat and adjust the chip in the suspended state, and it is easy to cause physical damage to the chip

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