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:
Oct. 07, 2025
Filed:
Nov. 15, 2023
Sandisk Technologies, Inc., Milpitas, CA (US);
Abhijith Prakash, Milpitas, CA (US);
Xiang Yang, Santa Clara, CA (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
A memory apparatus and method of operation are provided. The apparatus includes source-side and drain-side select gate transistors for coupling respectively to the source-side and drain-side of memory holes of memory cells. During the read operation, the control means ramps the word lines to a read pass voltage. The control means is configured to delay ramping the voltage applied to the source-side select gate transistors to a select gate voltage until a predetermined time after the selected ones of the word lines and the unselected ones of the word lines ramp to the read pass voltage. The control means is also configured to delay ramping the voltage applied to the drain-side select gate transistors to a select gate voltage until a different predetermined time after the selected ones of the word lines and the unselected ones of the word lines ramp to the read pass voltage.