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:
Jul. 19, 2005
Filed:
Oct. 02, 1996
Gary L. Swoboda, Sugar Land, TX (US);
Henry R. Hoar, Houston, TX (US);
Joseph A. Coomes, Missouri City, TX (US);
Gary L. Swoboda, Sugar Land, TX (US);
Henry R. Hoar, Houston, TX (US);
Joseph A. Coomes, Missouri City, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An electronic system includes electronic circuitry to be tested having serial scan shift register latches, and a serial scan generator embedded in the electronic system upon manufacture and connected to the serial scan shift register latches of the electronic circuitry to facilitate testing. The electronic system may consist of a single printed circuit board mounting both the electronic circuitry and the serial scan generator. The electronic system may consist of a single semiconductor chip carrier mounting both the electronic circuitry and the serial scan generator, are both mounted on said single semiconductor chip carrier. The electronic system may further include a detachable second serial scan generator. The serial scan generator preferably operates slower than the detachable second serial scan generator. The electronic system may further include a disabling terminal disabling the serial scan generator upon attachment of the detachable second serial scan generator.