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.:

US 7184134 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 27, 2007

Filed:

Feb. 18, 2005
Applicant:

Seiji Samukawa, Sendai, JP;

Inventor:

Seiji Samukawa, Sendai, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

A real-time monitoring apparatus for a plasma process comprises a plurality of measuring units () mounted on a semiconductor wafer, a receiving device () for receiving a signal transmitted from each of the measuring units (), and a data processing apparatus () for detecting a condition of the semiconductor wafer () based on the received signal. In this apparatus, each of the measuring units () includes at least one plasma process detection sensor (), a light-emitting device () for converting an output of the plasma process detection sensor into an optical output, and a power supply () for supplying drive power to the light-emitting device ().


Find Patent Forward Citations

Samukawa, Seiji. (2007). Real-time monitoring apparatus for plasma process (U.S. Patent No. 7184134). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7184134

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