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. 30, 1996
Filed:
Jan. 28, 1993
Applicant:
Inventor:
Shozo Shirota, Itami, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
437 43 ; 437 48 ; 437 52 ; 365205 ; 365208 ; 36518521 ;
Abstract
A method of manufacturing a one-chip microcomputer with mask ROM and a one-chip microcomputer with EPROM, wherein a plurality of photomasks for photomechanical process and/or photomask data can be used in common. According to this method, because of the common use of the photomasks and/or photomask data, it becomes able to make uniform the layout, size and electric characteristic of chips.