Title:
メモリを読み出すためのビット特定基準レベルの使用
Document Type and Number:
Japanese Patent JP5052805
Kind Code:
B2
Abstract:
A voltage derived from accessing a selected bit using one read current may be utilized to read a selected bit of an untriggered phase change memory after the read current is changed. As a result, different reference voltages may be used to sense the state of more resistive versus a less resistive selected cells. The resulting read window or margin may be improved in some embodiments.
Inventors:
Tyler lorry
Ward Dee Parkinson
Ferdinand Bedeschi
Claudio Resta
Roberto Gustaldi
Julio Casa Grande
Ward Dee Parkinson
Ferdinand Bedeschi
Claudio Resta
Roberto Gustaldi
Julio Casa Grande
Application Number:
JP2006090752A
Publication Date:
October 17, 2012
Filing Date:
March 29, 2006
Export Citation:
Assignee:
Ovonics, Inc.
International Classes:
G11C13/00
Domestic Patent References:
| JP61045319B2 | ||||
| JP2005012186A | ||||
| JP2004515020A | ||||
| JP2002008367A | ||||
| JP2004039231A | ||||
| JP2005012186A | ||||
| JP2002541613A | ||||
| JP2002246561A |
Foreign References:
| US20050029505 | ||||
| US20040114413 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito