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:
Apr. 04, 1995
Filed:
Mar. 09, 1992
Ricoh Company Ltd., Tokyo, JP;
Ricoh Research Institute of General Electronics Co., Ltd., Natori, JP;
Abstract
A functional thin film member is composed of an insulating substrate; a first single crystal thin film layer which contains at least one atom component of Si or Ge, formed on the insulating substrate; an intermediate layer with a cubic crystal system and a lattice constant difference of 15% or less with respect to the lattice constant of the single crystal thin film layer, formed on said single crystal thin film layer; and a second single crystal thin film layer of an oxide formed on the intermediate layer. The first single crystal thin film layer may include crystal orientations suitable for the properties of functional members to be provided above the single crystal thin film layer on an identical plane of the surface of the single crystal thin film layer, and the intermediate layer may be formed in at least one portion of the single crystal thin film layer, corresponding to any of the crystal orientations. In this case, a functional element utilizing the second single crystal thin film layer; and a passive or active device which is formed on the first single crystal thin film layer is electrically or optically connected to the functional element or the insulating substrate.