Invention Grant
- Patent Title: Room temperature drift suppression via soft program after erase
- Patent Title (中): 擦除后通过软程序进行室温漂移抑制
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Application No.: US11945785Application Date: 2007-11-27
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Publication No.: US07944746B2Publication Date: 2011-05-17
- Inventor: Gwyn Robert Jones , Mark W Randolph , John Darilek , Sean O'Mullan , Jacob Marcantel , Rick Anundson , Adam Shackleton , Xiaojian Chu , Abhijit Raghunathan , Asif Arfi , Gulzar Ahmed Kathawala , Zhizheng Liu , Sung-Chul Lee
- Applicant: Gwyn Robert Jones , Mark W Randolph , John Darilek , Sean O'Mullan , Jacob Marcantel , Rick Anundson , Adam Shackleton , Xiaojian Chu , Abhijit Raghunathan , Asif Arfi , Gulzar Ahmed Kathawala , Zhizheng Liu , Sung-Chul Lee
- Applicant Address: US CA Sunnyvale
- Assignee: Spansion LLC
- Current Assignee: Spansion LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Turocy & Watson, LLP
- Main IPC: G11C16/06
- IPC: G11C16/06 ; G11C16/10 ; G11C16/14

Abstract:
Providing for suppression of room temperature electronic drift in a flash memory cell is provided herein. For example, a soft program pulse can be applied to the flash memory cell immediately after an erase pulse. The soft program pulse can help to mitigate dipole effects caused by non-combined electrons and holes in the memory cell. Specifically, by utilizing a relatively low gate voltage, the soft program pulse can inject electrons into the flash memory cell proximate a distribution of uncombined holes associated with the erase pulse in order to facilitate rapid combination of such particles. Rapid combination in this manner reduces dipole effects caused by non-combined distributions of opposing charge within the memory cell, reducing room temperature program state drift.
Public/Granted literature
- US20090135659A1 ROOM TEMPERATURE DRIFT SUPPRESSION VIA SOFT PROGRAM AFTER ERASE Public/Granted day:2009-05-28
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