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. 01, 2000
Filed:
Sep. 24, 1998
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03F / ; G03C / ;
U.S. Cl.
CPC ...
430296 ; 430328 ; 430330 ;
Abstract
A rough pattern is formed on a chemically amplified resist by light exposing, and a fine pattern is formed by EB exposing. The resist is heated not only after EB exposing but also after light exposing. After this, the resist on which the rough and the fine patterns are formed is developed. As a result of this, diffusion or deactivation of an acid can be suppressed, and dimensional errors can be reduced.