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. 14, 2002
Filed:
Apr. 26, 1999
Toshiharu Furukawa, Essex Junction, VT (US);
Mark C. Hakey, Fairfax, VT (US);
Steven J. Holmes, Milton, VT (US);
David V. Horak, Essex Junction, VT (US);
Paul A. Rabidoux, Winooski, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Methods for forming a T-gate on a substrate are provided that employ a hybrid resist. The hybrid resist specifically is employed to define a base of the T-gate on the substrate with very high resolution. To define a base of the T-gate, a hybrid resist layer is deposited on the substrate. A mask having a reticle feature with an edge is provided and is positioned above the hybrid resist layer so that the edge of the reticle feature is above a desired location for the base of the T-gate. Thereafter, the hybrid resist layer is exposed to radiation through the mask, and the exposed hybrid resist layer is developed to define an opening therein for the base of the T-gate. Preferably the loop feature formed in the hybrid resist layer by the reticle feature during exposure is trimmed. The T-gate may be completed by employing any known T-gate fabrication techniques.