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:
Mar. 05, 2019
Filed:
Apr. 07, 2016
International Business Machines Corporation, Armonk, NY (US);
Saravanan Sethuraman, Bangalore, IN;
Gary A. Tressler, Sandy Hook, CT (US);
Harish Venkataraman, Bangalore, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments herein describe a 3D flash memory system that includes multiple blocks where each block contains multiple pages arranged in a vertical stack. Instead of having a single command line indicating whether a read or program is to be performed, separate command lines are coupled to each of the blocks. As a result, if the memory system identifies a read request and a program request to different blocks, the requests can be performed in parallel. In one embodiment, a program command line is used to perform a program request on a first block while a read command line is used to perform a read request on a second block in the 3D flash memory system in parallel. Furthermore, because a program request can take much longer to complete than a read request, the 3D flash memory system can perform multiple read requests in parallel with the program request.