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:
Jun. 04, 2002
Filed:
May. 30, 2000
Applicant:
Inventor:
Kenneth C. Adkins, Fremont, CA (US);
Assignee:
Summit Microelectronics, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/604 ;
U.S. Cl.
CPC ...
G11C 1/604 ;
Abstract
The invention provides a single input pin on an integrated circuit chip that serves multiple functions during normal, test, and program modes. A first voltage detector detects a first predetermined high voltage level to place an integrated circuit in test mode. A second voltage detector detects a second predetermined high voltage level to place the integrated circuit in program mode. A high level switch is triggered to activate a pulse shaping circuit, which ramps up voltage gradually to prevent causing damage to programmable cells.