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.

Date of Patent:
Jun. 15, 2021

Filed:

Apr. 13, 2020
Applicant:

Multibeam Corporation, Santa Clara, CA (US);

Inventors:

David K. Lam, Saratoga, CA (US);

Kevin M. Monahan, Cupertino, CA (US);

Michael C. Smayling, Fremont, CA (US);

Theodore A. Prescop, San Jose, CA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2020.01); H01J 37/26 (2006.01); H01L 21/3065 (2006.01); H01J 37/317 (2006.01); H01L 21/02 (2006.01); H01L 21/285 (2006.01); H01L 21/66 (2006.01); H01L 21/265 (2006.01);
U.S. Cl.
CPC ...
H01J 37/26 (2013.01); H01J 37/3172 (2013.01); H01J 37/3177 (2013.01); H01L 21/0262 (2013.01); H01L 21/28556 (2013.01); H01L 21/3065 (2013.01); H01L 22/12 (2013.01); H01L 21/26513 (2013.01);
Abstract

Methods, tools and systems for patterning of substrates using charged particle beams without photomasks, without a resist layer, using multiple different processes (different chemistry processes and/or different ones of material deposition, removal and/or modification) in the same vacuum space, wherein said processes are performed independently (without cross-interference) and simultaneously. As a result, the number of process steps can be reduced and some lithography steps can be eliminated, reducing manufacturing cycle time and increasing yield by lowering the probability of defect introduction. Also, because such processes are resist-less, layer-to-layer registration and other column control processes can be performed by imaging previous-layer features local to (or in contact with) features to be written in a next layer as designated by the design layout database.


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