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:
Jan. 24, 1989
Filed:
Oct. 23, 1987
Masaharu Ozaki, Yokohama, JP;
Takao Yonehara, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor memory device comprises: a charge holding capacitor formed on a semiconductor substrate; an insulating layer formed on the capacitor; and a transistor formed on a monocrystalline or substantially monocrystalline semiconductor layer, which is provided by forming, on the insulating layer, a hetero material of a nucleation density sufficiently higher than that of the insulating layer and of a size smaller enough to allow growth of a single nucleus of a semiconductor layer, followed by crystal growth around a single nucleus formed on the hetero material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile