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:
Mar. 08, 1994
Filed:
Nov. 10, 1992
Peter Muhmenthaler, Munich, DE;
Hans D Oberle, Puchheim, DE;
Martin Peisl, Munich, DE;
Dominique Savignac, Ismaning, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An integrated semiconductor memory includes a parallel test device and block groups. The parallel test device is used for writing in and evaluating data to be written into and read out of the semiconductor memory. Several groups of memory cells can be simultaneously tested for operation in a test mode, with each group being disposed along a respective word line. The data read out during the process can be evaluated by the parallel test device. The result of the evaluation is present, separately for each group of memory cells, on I/O data lines of the semiconductor memory. The semiconductor memory can also have redundant memory cells, in which case defective memory cells or groups of memory cells can be replaced in connection with the test mode.