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:
Jun. 01, 2004
Filed:
Dec. 05, 2002
Applicant:
Inventor:
Mitsutaka Niiro, Hyogo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
Switching is made between applied voltages to fuse elements H to H in a program circuit in response to a test signal /TE. To be concrete, in a test mode, a stepped-up voltage Vpp higher than a power supply voltage Vcc applied in the normal mode is applied to a fuse element to be disconnected to remove a disconnection defect left in the fuse element, thereby enabling perfect disconnection of the fuse element.