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:
Aug. 28, 2001
Filed:
Sep. 08, 1999
Maruyama Mitsuhiro, Tokyo, JP;
Maruyama Yasuhiro, Tokyo, JP;
Digital Wave Inc., Tokyo, JP;
Abstract
A semiconductor-device-producing substrate and method for producing the substrate which is inexpensive and good in quality and which has a large-area surface layer. A photoelectric conversion device and method uses the semiconductor-device-producing substrate, with high efficiency being obtained by means of the large-area light-receiving surface and three-dimensional structure of the photoelectric conversion device. Semiconductor granular crystals are arranged in at least one layer on a semiconductor substrate and connected and fixed to one another by heating or by a chemical vapor-phase deposition method to thereby form a semiconductor-device-producing substrate. An active layer of one conduction type is formed on the substrate and then another active layer of the other conduction type is formed on the surface of the first-mentioned active layer by a chemical vapor-phase deposition method or by a diffusion method to thereby form a PN junction surface having a three-dimensional structure. As a result, a solar cell or a light-emitting diode high in efficiency can be obtained.