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:
Nov. 02, 1982
Filed:
May. 08, 1981
Christa Grabmaier, Berg, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
Large surfaced, pore-free silicon bodies useful for processing into solar cells are produced by providing at least two layers formed from at least two distinct silicon materials, each containing different amounts of germanium therein and thus having different melting points. A laminate is formed of such layers and sintered at a temperature at which only one of the silicon materials becomes molten so that the resultant molten layer effectively seals the pores of the other layers and upon cooling a unitary silicon body is attained. In certan embodiments, a molten silicon material is applied as a liquified film onto a solidified layer composed of different silicon material.