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. 09, 2024
Filed:
May. 17, 2022
Sandisk Technologies Llc, Addison, TX (US);
Long Pham, San Ramon, CA (US);
Sai Gautham Thoppa, San Jose, CA (US);
SANDISK TECHNOLOGIES LLC, Addison, TX (US);
Abstract
Adaptive and dynamic control of the duration of a pre-program pulse based on a number of planes selected for the pre-program operation is disclosed. A value for a pre-program time increment parameter may be selected based on the number of planes for which the pre-program operation will be performed or determined based on a predefined association with the number of planes. A pre-program voltage pulse may then be applied for a duration that is equal to a default duration for a single-plane pre-program operation incremented by the time increment parameter value. This approach solves the technical problem of Vt downshift for multi-plane pre-program operations, and thus, ensures that the success rate of secure erase operations does not diminish as the number of planes increases. This, in turn, allows for pre-program operations to be consistently performed on a multi-plane basis, which produces the technical effect of improved system performance.