Patent · US Expired

Planar trimming resistor, applications and method for its manufacture

US6667683B1 · kind B1 · utility

5Cited by

7References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Emili · Gomaringen, DE
Herbert Goebel · Gräfelfing, DE
Harald Wanka · Reutlingen, DE

Key dates

Filing date	Oct 13, 2000
Grant date	Dec 23, 2003
Priority date	—
Expiry date	Jul 25, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01C7/22
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A trimming resistor is manufactured by depositing a resistive layer on a substrate, with a passivation layer having windows, and a contact layer which is in contact with the resistive layer via the windows. Trimming is carried out by interrupting the contact layer at narrow spots or regions. This invention has application for the manufacture of high-pressure sensors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.