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. 01, 2005
Filed:
Dec. 08, 2003
Applicants:
Mark A. Irwin, Tucson, AZ (US);
Rodney T. Burt, Tucson, AZ (US);
Inventors:
Mark A. Irwin, Tucson, AZ (US);
Rodney T. Burt, Tucson, AZ (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L031/0232 ;
U.S. Cl.
CPC ...
Abstract
A barrier region provided in the active surface of a wafer-level chip scale package device or chip (WCSP device or chip) to substantially reduce the amount of photon-generated substrate current that reaches active circuitry within the active area of the chip.