Patent · US Expired

Method for determining the transit time of electrical signals on printed circuit boards using automatic standard test equipment

US6703844B2 · kind B2 · utility

2Cited by

4References

5Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Frank Adler · Pau, FR
Thomas Huber · Schliersee, DE
Manfred Moser · Dachau, DE
Martin Versen · Hersbruck, DE

Key dates

Filing date	Aug 20, 2002
Grant date	Mar 9, 2004
Priority date	—
Expiry date	Aug 20, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG11C2029/5002
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Signal transit times on printed circuit boards which are equipped with all the passive components but without any active components can be determined using automatic standard test equipment composed of a standard test unit and a performance board with fittings attached thereto. In that first, using a standard routine of the test unit, a transit time is measured on the performance board from the CIF connector as far as the fitting, then a printed circuit board is plugged into the fitting location determined for it and then the sum transit time of the CIF connector is measured as far as the landing pad on the printed circuit board. By forming differences between the two measured values, the transit times on a printed circuit board can be measured with a high degree of precision with the automatic standard test equipment used in standard module testing technology.

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