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 6828178 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 07, 2004

Filed:

Jul. 11, 2002
Applicant:
Inventors:

Masakiyo Matsumura, Yokohama, JP;

Yasuhisa Oana, Yokohama, JP;

Hiroyuki Abe, Yokohama, JP;

Yoshitaka Yamamoto, Yokohama, JP;

Hideo Koseki, Yokohama, JP;

Mitsunori Warabisako, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/184 ;
U.S. Cl.
CPC ...
H01L 2/184 ;
Abstract

A thin film semiconductor device and a method for producing it are described. In the thin film layer of semiconductor of the device, a plurality of large size single-crystalline grains of semiconductor are formed in a regulated configuration, and each of single crystalline grains is equipped with one unit of electric circuit having a gate electrode, a source electrode and drain electrode. Such regulated arrangement of large size single-crystalline grains in the semiconductor layer is realized by a process including a step of irradiating the layer of amorphous or polycrystalline semiconductor with energy beam such as excimer laser so that maximum irradiation intensity points and minimum irradiation intensity points are arranged regulatedly. The device can have a high mobility such as about 500 cm /V sec.


Find Patent Forward Citations

Matsumura, Masakiyo. (2004). Thin film semiconductor device having arrayed configuration of semiconductor crystals and a method for producing it (U.S. Patent No. 6828178). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6828178

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