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.:
Date of Patent:
Sep. 10, 2002
Filed:
Mar. 16, 2001
Applicant:
Inventors:
Masahiro Yoshimura, Kanagawa Pref., JP;
Takeshi Fujiwara, Kanagawa Pref., JP;
Tomoaki Watanabe, Tokyo, JP;
Ryo Teranishi, Kanagawa Pref., JP;
Assignee:
Tokyo Institute of Technology, Toky, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/176 ;
U.S. Cl.
CPC ...
H01L 2/176 ;
Abstract
A water solution of lead nitrate is infiltrated into a substrate made of a porous material, and liquid drops of a water solution of sodium sulfide, which is charged into a ink cartridge of a minute nozzle, are sprayed onto the substrate from the minute nozzle. The lead component from the lead nitrate water solution and the sulfur component from the sodium sulfide water solution are synthesized directly on the substrate, and thus, a thin film made of lead sulfide is formed on the substrate.