Patent · US Expired

Semiconductor chip with trimmable oscillator

US6671221B2 · kind B2 · utility

11Cited by

4References

9Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Peter Beer · Waldshut-Tiengen, DE
Carsten Ohlhoff · Hersbruck, DE

Key dates

Filing date	May 23, 2002
Grant date	Dec 30, 2003
Priority date	—
Expiry date	May 26, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG11C11/401
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A semiconductor chip, particularly a semiconductor memory, has a trimmable oscillator for controlling internal functions. A circuit is provided for trimming the frequency of the oscillator and is implemented on the semiconductor chip. This guarantees a parallel setting of the oscillator frequency for a plurality of semiconductor chips without losses in yield or quality.

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