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. 13, 2000
Filed:
Jun. 22, 1999
Tyler Lowrey, Troy, MI (US);
Guy C Wicker, Troy, MI (US);
Boil Pashmakov, Troy, MI (US);
Patrick J Klersy, Troy, MI (US);
Sergey A Kostylev, Troy, MI (US);
Wolodymyr Czubatyj, Troy, MI (US);
Energy Conversion Devices, Inc., Troy, MI (US);
Abstract
A method of programming an electrically programmable phase-change memory element to the low resistance state. A first pulse of energy sufficient to transform the device from the low to high resistance states is applied, and a second pulse of energy sufficient to transform the device from the high to low resistance states is applied following the first pulse. In another programming method, the present and desired device states are compared, and programming pulses are applied only if the state of the device needs to be changed.