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:
Feb. 08, 2011
Filed:
Jul. 10, 2009
Daniel S. Reed, Maple Plain, MN (US);
Yong LU, Edina, MN (US);
Andrew John Carter, Minneapolis, MN (US);
Hai LI, Eden Prairie, MN (US);
Daniel S. Reed, Maple Plain, MN (US);
Yong Lu, Edina, MN (US);
Andrew John Carter, Minneapolis, MN (US);
Hai Li, Eden Prairie, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
In accordance with various embodiments, a column of non-volatile memory cells is connected between opposing first and second control lines. A fixed reference voltage is applied to the second control line. The memory cells are simultaneously programmed to a first resistive state by applying a first voltage to the first control line that is greater than the fixed reference voltage. Less than all of the memory cells are subsequently simultaneously programmed to a different, second resistive state by applying a second voltage to the first control line that is less than the fixed reference voltage, so that at the conclusion of the respective programming steps a first portion of the memory cells along said column are at the first resistive state and a second portion of the memory cells along said column are at the second resistive state.