LOAD CELL AND METHOD OF MANUFACTURING THE SAME

摘要

A load cell includes a bridge circuit having first to fourth strain gauge resistors and first and second temperature compensating resistors connected to the respective first and second strain gauge resistors. The first to fourth strain gauge resistors are constituted by a nickelchromium alloy layer of high resistivity metal formed on an insulating film, the first and second temperature compensating resistors are each constituted by a twolayered structure of the high resistivity layer and a lower resistivity layer formed thereon, and connecting means for connecting the first to fourth strain gauge resistors and first and second temperature compensating resistors are constituted by a three-layered structure of the high resistivity layer, the lower resistivity layer and also a high conductivity layer formed on the lower resistivity layer.