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:
Mar. 10, 1998
Filed:
Jun. 24, 1996
Applicant:
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G03B / ;
U.S. Cl.
CPC ...
355 67 ; 355 53 ; 359227 ; 359232 ;
Abstract
A photolithographic projection system for transferring a predetermined pattern from a photomask to a wafer includes a radiation source and a grating mask. The radiation source projects radiation along a path through the photomask toward the wafer. The grating mask is positioned along the radiation path and is separate from the photomask. In a method for transferring a predetermined pattern from a photomask to a wafer, radiation is projected along a path through a grating mask and a photomask toward the wafer, and the grating mask is separate from the photomask.