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. 24, 2014
Filed:
Feb. 18, 2013
(Spansion Inc.) Spansion Llc., Sunnyvale, CA (US);
Alexander Kushnarenko, Haifa, IL;
Yoram Betser, Mazkeret Batya, IL;
Spansion LLC., Sunnyvale, CA (US);
Abstract
A source-sensing configuration for non-volatile memory devices to simultaneously read 2 bits in two different memory cells sharing a same word line is disclosed. In a first cell arrangement, a drain of a first read cell is biased and its source and that of two adjacent cells in a direction towards the second read cell are connected through source bit lines to a source sense amplifier. In a second cell arrangement, the drain of the second read cell is biased and its source and that of its two adjacent cells in a direction towards the first read cell are connected through source bit lines to a source sense amplifier. A memory cell acts as a cell pipe and joins together the first and second cell arrangements. Driving all six source bit lines simultaneously allows the 2 bits to be simultaneously read while maintaining currents due to pipe effect substantially minimized.