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:
Apr. 03, 2018
Filed:
Apr. 30, 2015
Sandisk Technologies Llc, Plano, TX (US);
Niles Yang, Mountain View, CA (US);
Rohit Sehgal, Milpitas, CA (US);
Abhilash Kashyap, San Jose, CA (US);
SANDISK TECHNOLOGIES LLC, Plano, TX (US);
Abstract
In a non-volatile memories formed according to a NAND type of architecture, one or more of the end word lines on the source end, drain end, or both are set aside as dummy word lines that are not used to store user data. In addition to the host data, a memory system typically also stores metadata, or information about the user data, how it is stored and the memory system itself. Techniques are presented for using the dummy word lines of the memory blocks to hold this metadata. This arrangement allows for the metadata of a memory block to be known in real time, without reducing the storage capacity of the memory system.