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:
May. 05, 1998

Filed:

Oct. 03, 1996
Applicant:
Inventors:

Seung-ki Chae, Kyungki-do, KR;

Byung-seol Ahn, Kyungki-do, KR;

Sang-kyu Hahm, Kyungki-do, KR;

Jong-soo Kim, Kyungki-do, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G01R / ;
U.S. Cl.
CPC ...
118665 ; 118688 ; 118712 ; 427-8 ; 437-8 ;
Abstract

An apparatus for depositing particles onto a wafer comprises a particle generator; particle size controller connected to an output terminal of the particle generator, a first transmitting tube connected to an output of the particle size controller; a second and a third transmitter connected to an output terminal of the first transmitting tube; a first counter connected to an output terminal of the second transmitting tube; a particle depositor connected to an output terminal of the third transmitter; a second counter connected to the particle depositor; and a power supplier connected to the particle depositor. The apparatus and a method for depositing the particles onto the wafer provide a wafer on which particles of known size and kind are deposited. Also, the particles of a different kind and size are deposited on the same wafer.


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