Manufacturing method of metal plate micro resistors

Abstract

A method for manufacturing a metal plate microresistor includes a preparation step, an attachment step, and a forming step. The preparation step involves preparing an alloy resistor block. The attachment step involves attaching an insulating layer to the alloy resistor block to distinguish a shielded area covered by the insulating layer and two preparation areas located on opposite sides of the shielded area. Two heat sinks are then attached to these preparation areas. Each heat sink includes a base portion attached to the preparation area and an extension portion extending from the base portion to the insulating layer. The forming step involves forming two electrode blocks on the alloy resistor block. Each electrode block includes a side connection portion connected to the side of the alloy resistor block, an overlap portion bent from the side connection portion to the heat sink, and a bottom connection portion bent from the side connection portion to the bottom surface of the alloy resistor block.

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