Patent · US Expired

Ceramic substrate and method of manufacturing same

US6974515B2 · kind B2 · utility

2Cited by

4References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Anja Neubert · Reutlingen, DE
Holger Hoefer · Tegernsee, DE

Key dates

Filing date	Jan 27, 2003
Grant date	Dec 13, 2005
Priority date	—
Expiry date	May 1, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2201/09018
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A ceramic substrate having a defined curvature and a method of its manufacture are described. For this purpose at least two ceramic layers having different defined temperature coefficients of expansion are positioned on top of one another and are permanently bonded together. A curved ceramic substrate may be advantageously utilized in micro-hybrid technology, in multilayer ceramic technology, or in hybrid technology, e.g., as a membrane element of a piezoresistive pressure sensor element.

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