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. 11, 1995
Filed:
Mar. 04, 1994
Shih-Wei Sun, Austin, TX (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
An input/output protection device for an integrated circuit is formed using a trench (22). A first electrode region (46) is formed adjacent a first portion of the trench sidewall (24), and a second electrode region (48) is formed adjacent a second portion of the trench sidewall (24). One of the electrode regions is then electrically coupled to an input/output pad, while the other electrode region is electrically coupled to ground. Excessive voltages on the input/output pad are then discharged when the electrode, which is electrically coupled to the input/output pad, punches through to the electrode that is electrically coupled to ground.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile