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:
Apr. 09, 2002
Filed:
May. 29, 2001
Applicant:
Inventors:
Eckhard Brass, Unterhaching, DE;
Thilo Schaffroth, Röhrmoos, DE;
Joachim Schnabel, München, DE;
Helmut Schneider, München, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 2/900 ;
U.S. Cl.
CPC ...
G11C 2/900 ;
Abstract
A method for testing a multiplicity of word lines of a semiconductor memory configuration in a multiple word line wafer test is described. To prevent a pulling-up of inactive word lines which are at a negative voltage when the active word lines are ramped down, the inactive word lines are decoupled from the negative word line voltage and are connected to a high impedance shortly before the active word lines are ramped down.