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:
Jul. 05, 1977
Filed:
Jul. 29, 1976
Applicant:
Inventors:
Koreaki Gunjigake, Machida, JA;
Masashi Hasegawa, Sagamihara, JA;
Hiroshi Oizumi, Sagamihara, JA;
Yoshio Ogata, Machida, JA;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; H01L / ;
U.S. Cl.
CPC ...
148 22 ; 148186 ; 148189 ; 252950 ; 252951 ; 106 69 ; 106 732 ; 106286 ;
Abstract
Disclosed is a solid diffusion source for the phosphorus doping of semiconductors, which comprises a substance composed of at least one kind of compound R.sub.2 O.sub.3 selected from the group consisting of Y.sub.2 O.sub.3, La.sub.2 O.sub.3 and Ce.sub.2 O.sub.3 and P.sub.2 O.sub.5 and containing mainly a compound with a chemical formula R.sub.2 O.sub.3.5P.sub.2 O.sub.5.
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Gunjigake, Koreaki. (1977). Solid diffusion dopants for semiconductors and method of making the same (U.S. Patent No. 4033790). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4033790
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile