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:
Feb. 20, 2007
Filed:
Jan. 22, 2003
Applicants:
Eric Harmon, Norfolk, MA (US);
David Salzman, Chevy Chase, MD (US);
Jerry Woodall, New Haven, CT (US);
Inventors:
Eric Harmon, Norfolk, MA (US);
David Salzman, Chevy Chase, MD (US);
Jerry Woodall, New Haven, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention, called hypercontacting, achieves a very high level of activated doping at an exposed surface region of a compound semiconductor. This enables production of low resistance ohmic contacts by creating a heavily doped region near the contact. Such region lowers the contact's tunneling barrier by decreasing the extent of the depletion region at the contact, thereby reducing resistance.