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:
Nov. 17, 1998
Filed:
Jul. 03, 1997
Applicant:
Inventors:
Jeffrey Devin Bude, New Providence, NJ (US);
Mark Richard Pinto, Summit, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518518 ; 36518519 ; 36518526 ;
Abstract
A process for introducing negative charge onto the floating gate of an EPROM or EEPROM device is disclosed. The process uses CHISEL conditions to introduce charge onto the floating gate. The threshold voltage of the device is controlled by selecting a control gate voltage during programming that is less than 10 volts and that will provide a device with the desired threshold voltage. The device is then programmed using the selected control gate voltage and a negative substrate bias.