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. 06, 2003
Filed:
Jan. 31, 2001
Sau-Ching Wong, Hillsborough, CA (US);
Multi Level Memory Technology, San Jose, CA (US);
Abstract
A manufacturing method for a multiple-bit-per-cell memory tests memory arrays in the memory and separately sets the number of bits stored per cell in each memory array. Memory arrays that testing proves are accurate when writing, storing, and reading a larger number of bits per cell are set to store more bits per cell, and memory arrays that cannot accurately write, store, or read as many bits per cell are set to store fewer bits per cell. The setting of the numbers of bits per cell for the respective memory arrays can maximize the memory capacity when some arrays perform better than expected. When the memory arrays perform worse than expected, the setting of the numbers of bits per cell can salvage the memory device even if the memory cannot provide the expected memory capacity.