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. 25, 2002
Filed:
Sep. 24, 1998
Katsunobu Hongo, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Each of semiconductor chips ( ) formed on a wafer ( ) has a power supply voltage leading wiring ( ) connected to a power supply wiring ( ), a BI mode detection circuit ( ) connected to the power supply voltage leading wiring ( ) for detecting the supply of the power supply voltage to the power supply wiring ( ), a self oscillation circuit ( ) for oscillating a clock signal during the BI mode, a timing generation circuit ( ) for generating and outputting a timing clock during the BI mode, a BI mode control circuit ( ) for transferring control signals to circuits ( ) to be performed during the BI mode, and a power source circuit ( ) for supplying the power supply voltage to circuits ( and ) during the BI mode.