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:
Dec. 22, 2009

Filed:

Sep. 05, 2006
Applicants:

Munehiro Azami, Atsugi, JP;

Chiho Kokubo, Tochigi, JP;

Aiko Shiga, Atsugi, JP;

Atsuo Isobe, Atsugi, JP;

Hiroshi Shibata, Higashine, JP;

Shunpei Yamazaki, Setagaya, JP;

Inventors:

Munehiro Azami, Atsugi, JP;

Chiho Kokubo, Tochigi, JP;

Aiko Shiga, Atsugi, JP;

Atsuo Isobe, Atsugi, JP;

Hiroshi Shibata, Higashine, JP;

Shunpei Yamazaki, Setagaya, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/062 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for manufacturing a semiconductor device having steps of forming an amorphous semiconductor on a substrate having an insulating surface; patterning the amorphous semiconductor to form plural first island-like semiconductors; irradiating a linearly condensed laser beam on the plural first island-like semiconductors while relatively scanning the substrate, thus crystallizing the plural first island-like semiconductors; patterning the plural first island-like semiconductors that have been crystallized to form plural second island-like semiconductors; forming plural transistors using the plural second island-like semiconductors; and forming a unit circuit using a predetermined number of the transistors, where the second island-like semiconductors used for the predetermined number of the transistors are formed from the first island-like semiconductors that are different from each other.


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