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. 27, 2007
Filed:
Dec. 12, 2003
Applicants:
Vladislav Vashchenko, Palo Alto, CA (US);
Willem Kindt, Sunnyvale, CA (US);
Peter J. Hopper, San Jose, CA (US);
Inventors:
Vladislav Vashchenko, Palo Alto, CA (US);
Willem Kindt, Sunnyvale, CA (US);
Peter J. Hopper, San Jose, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01R 29/747 (2006.01); H01R 29/87 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a high voltage ESD protection solution, a plurality of DIACs are connected together to define a cascaded structure with isolation regions provided to prevent n-well and p-well punch through. An p-ring surrounds the DIACs and provides a ground for the substrate in which the DIACs are formed.