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:
Jan. 05, 2016
Filed:
Mar. 24, 2014
International Business Machines Corporation, Armonk, NY (US);
David V. Horak, Essex Junction, VT (US);
Effendi Leobandung, Wappingers Falls, NY (US);
Stefan Schmitz, Ballston Spa, NY (US);
Junli Wang, Slingerlands, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A replacement metal gate process which includes forming a fin on a semiconductor substrate; forming a dummy gate structure on the fin; removing the dummy gate structure to leave an opening that is to be filled with a permanent gate structure; depositing a high dielectric constant (high-k) dielectric material in the opening and over the fin; depositing a work function metal in the opening and over the fin so as to be in contact with the high-k dielectric material, the high k dielectric material and the work function metal only partially filling the opening; filling a remainder of the opening with an organic material; etching the organic material until it is partially removed from the opening; etching the work function metal until it is at a same level as the organic material; removing the organic material; and filling the opening with a metal until the opening is completely filled.