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:
Jul. 11, 1995

Filed:

Jun. 22, 1993
Applicant:
Inventors:

Toshiyuki Sameshima, Kanagawa, JP;

Masaki Hara, Kanagawa, JP;

Naoki Sano, Kanagawa, JP;

Gosain D Pal, Kanagawa, JP;

Atsushi Kono, Kanagawa, JP;

Jonathan Westwater, Kanagawa, JP;

Setsuo Usui, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
117 43 ; 117 44 ; 117 45 ; 117 54 ; 117 74 ; 117 75 ; 117931 ;
Abstract

A thin semiconductor film having at least one an edge is formed on a base whose material is different from the material of the thin semiconductor film. A laser beam, for example, is applied to the semiconductor film thereby to melt the semiconductor film including the edge for thereby beading the edge upwardly. The melted semiconductor film including the edge is solidified and hence recrystallized into a semiconductor crystal. A plurality of spaced reflecting films may be formed on the thin semiconductor film before the laser beam is applied. Various semiconductor devices including a thin-film transistor, a solar cell, and a bipolar transistor may be fabricated of the semiconductor crystal.


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