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:
Jan. 21, 2025

Filed:

Oct. 20, 2022
Applicant:

Asml Netherlands B.v., Veldhoven, NL;

Inventors:

Yongxin Wang, San Ramon, CA (US);

Zhonghua Dong, Sunnyvale, CA (US);

Rui-Ling Lai, San Jose, CA (US);

Kenichi Kanai, Palo Alto, CA (US);

Assignee:

ASML Netherlands B.V., Veldhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/244 (2006.01); G01T 1/24 (2006.01); H01J 37/28 (2006.01); H01J 37/285 (2006.01); H01L 31/08 (2006.01);
U.S. Cl.
CPC ...
H01J 37/244 (2013.01); G01T 1/247 (2013.01); H01J 37/28 (2013.01); H01J 37/285 (2013.01); H01L 31/085 (2013.01); H01J 2237/2441 (2013.01);
Abstract

A detector may be provided with an array of sensing elements. The detector may include a semiconductor substrate including the array, and a circuit configured to count a number of charged particles incident on the detector. The circuit of the detector may be configured to process outputs from the plurality of sensing elements and increment a counter in response to a charged particle arrival event on a sensing element of the array. Various counting modes may be used. Counting may be based on energy ranges. Numbers of charged particles may be counted at a certain energy range and an overflow flag may be set when overflow is encountered in a sensing element. The circuit may be configured to determine a time stamp of respective charged particle arrival events occurring at each sensing element. Size of the sensing element may be determined based on criteria for enabling charged particle counting.


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