4 2 Semiconductor pressure sensor that forms two independent full-wheatstone bridges with four resistors

摘要

The present invention relates to a semiconductor pressure sensor forming two independent full-wheatstone bridges with four resistors. The semiconductor pressure sensor comprises: five connection pads made of conductor materials; four resistors connected to the five connection pads, having a resistance value changing in proportion to a change in length according to external pressure, and disposed on a horizontal axis same with horizontal axes of the connection pads; and a connection unit (conductor) electrically connecting each resistor. A structure of a connection circuit forms two full wheatsone bridges since four external fixed resistors and one or two applied voltages are connected.