The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2007
Filed:
Sep. 15, 2005
Justus Kuhn, München, DE;
Wolfgang Spirkl, Germering, DE;
Justus Kuhn, München, DE;
Wolfgang Spirkl, Germering, DE;
Infineon Technologies AG, Munich, DE;
Abstract
The invention relates to a semiconductor memory apparatus having at least one clock input contact for inputting an external clock signal, at least one clock output contact for outputting a data read clock signal for reading data stored in the semiconductor memory apparatus, at least one data contact for outputting data stored in the semiconductor memory apparatus, at least one phase adjustment device which is designed for approximately adjusting a phase of the data read clock signal on the basis of a phase of the external clock signal at least one phase difference test device which is designed for approximately detecting a phase difference between the phase of the data read clock signal and the phase of the external clock signal and for outputting a test result on the basis of the detected phase difference.