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:
Apr. 06, 2004
Filed:
Mar. 11, 2002
Applicant:
Inventors:
Walter R. Buchanan, Olathe, KS (US);
Roman J. Hamerski, Olathe, KS (US);
Wayne A. Smith, Liberty, MO (US);
Assignee:
Fabtech, Inc., Lee's Summit, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/7095 ;
U.S. Cl.
CPC ...
H01L 2/7095 ;
Abstract
A diode ( ), having first and second conductive layers ( ), a conductive pad ( ), and a distributed reverse surge guard ( ), provides increased protection from reverse current surges. The surge guard ( ) includes an outer loop ( ) of P -type surge guard material and an inner grid ( ) of linear sections ( ) which form a plurality of inner loops extending inside the outer loop ( ). The surge guard ( ) distributes any reverse current over the area of the conductive pad ( ) to provide increased protection from transient threats such as electrostatic discharge (ESD) and during electrical testing.