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:
May. 05, 2009
Filed:
Aug. 24, 2007
Rino Micheloni, I-22078 Turate (CO), IT;
Luca Crippa, I-20040 Busnago (MI), IT;
Roberto Ravasio, I-24036 Ponte San Pietro (BG), IT;
Federico Pio, I-20047 Brugherio (MI), IT;
Rino Micheloni, I-22078 Turate (CO), IT;
Luca Crippa, I-20040 Busnago (MI), IT;
Roberto Ravasio, I-24036 Ponte San Pietro (BG), IT;
Federico Pio, I-20047 Brugherio (MI), IT;
Other;
Abstract
A method for operating a flash memory device. The memory device includes a matrix of memory cells each one having a programmable threshold voltage defining a value stored in the memory cell. The method includes the steps of erasing a block of memory cells, and compacting the threshold voltages of the memory cells of the block within a predefined compacting range, wherein the step of compacting includes: selecting at least one first memory cell of the block for writing a target value; restoring the threshold voltage of a subset of the memory cells of the block to the compacting range, the subset including the at least one first memory cell and/or at least one second memory cell of the block being adjacent to the at least one first memory cell; and at least partially writing the target value into the at least one first memory cell.