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. 14, 2009
Filed:
Jan. 06, 2005
Applicants:
Douglas D. Coolbaugh, Essex Junction, VT (US);
Stephen S. Furkay, South Burlington, VT (US);
Jeffrey B. Johnson, South Burlington, VT (US);
Robert M. Rassel, Colchester, VT (US);
Inventors:
Douglas D. Coolbaugh, Essex Junction, VT (US);
Stephen S. Furkay, South Burlington, VT (US);
Jeffrey B. Johnson, South Burlington, VT (US);
Robert M. Rassel, Colchester, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/93 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor structure comprising a hyperabrupt junction varactor with a compensated cathode contact as well as a method of fabricating the same are disclosed. The method includes a single implant mask which is used in forming the subcollector/cathode, collector/well and hyperabrupt junction.