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:
May. 16, 2000
Filed:
May. 04, 1998
Kuan-Yu Fu, Hsinchu, TW;
United Microelectronics Corp., Hsinchu, TW;
Abstract
A layout design for an electrostatic discharge protection device formed above a first type of semiconductor substrate. This electrostatic discharge protection device comprises a gate region having a tortuous but continuous structure located above the first type semiconductor substrate, a common source region in the first type semiconductor substrate located on one side of the gate region, a multiple of separate drain regions in the first type semiconductor substrate located on the other side of the gate region, a multiple of contact openings distributed over the common source region and the drain regions, and, a conductive runner having a width narrower than the drain region electrically connected to each drain region.