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. 20, 2007
Filed:
Jan. 09, 2003
Applicants:
Vladislav Vashchenko, Palo Alto, CA (US);
Ann Concannon, San Jose, CA (US);
Peter J Hopper, San Jose, CA (US);
Marcel Ter Beek, Pleasanton, CA (US);
Inventors:
Vladislav Vashchenko, Palo Alto, CA (US);
Ann Concannon, San Jose, CA (US);
Peter J Hopper, San Jose, CA (US);
Marcel ter Beek, Pleasanton, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
In multiple port chip circuit, an ESD protection circuit and method of protecting the ports of the multiple port circuit, includes providing a plurality of bi-directional snapback devices such as DIACs and connecting only one electrode to ground while connecting the other electrodes to the ports that are to be protected.