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:
Apr. 27, 2010
Filed:
Apr. 04, 2008
Sun-pil Youn, Incheon, KR;
Jin-tae Kang, Gyeonggi-do, KR;
Young-jae Joo, Gyeonggi-do, KR;
Hyeong-jun Kim, Seoul, KR;
Jae-min Shin, Gyeonggi-do, KR;
Sun-Pil Youn, Incheon, KR;
Jin-Tae Kang, Gyeonggi-do, KR;
Young-Jae Joo, Gyeonggi-do, KR;
Hyeong-Jun Kim, Seoul, KR;
Jae-Min Shin, Gyeonggi-do, KR;
Abstract
Methods of forming integrated circuit devices include forming at least one non-volatile memory cell on a substrate. The memory cell includes a plurality of phase-changeable material regions therein that are electrically coupled in series. This plurality of phase-changeable material regions are collectively configured to support at least 2-bits of data when serially programmed using at least four serial program currents. Each of the plurality of phase-changeable material regions has different electrical resistance characteristics when programmed.