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:
Jun. 13, 2006
Filed:
Oct. 01, 2003
Bruno M. Lafontaine, Pleasanton, CA (US);
Adam R. Pawloski, San Jose, CA (US);
Yunfei Deng, Berkeley, CA (US);
Bruno M. LaFontaine, Pleasanton, CA (US);
Adam R. Pawloski, San Jose, CA (US);
Yunfei Deng, Berkeley, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A reflective reticle includes reflective regions of different phases, with one of the reflective regions being, for example, 180 degrees out of phase with another region. The reflective reticle also includes absorptive regions, which may be placed between reflective regions of opposite phases. The reticle may include a reflector, made up of multiple reflective layers, atop a substrate of absorptive material. The reflector may have some of the reflective areas removed in the phase-shift regions, and substantially all of the reflective layers removed in the absorptive regions. The reticle may allow for greater resolution extreme ultraviolet (EUV) lithography.