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:
Dec. 16, 2025
Filed:
Jul. 27, 2023
Sandisk Technologies, Inc., Milpitas, CA (US);
Christopher J. Petti, Mountain View, CA (US);
Ward Parkinson, Boise, ID (US);
Thomas Trent, Tucson, AZ (US);
James O'Toole, Boise, ID (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
Technology is disclosed for a current source for reading a memory cell having a threshold switching selector. The current source may be operated in a first mode when turning on the threshold switching selector and in a second mode when sensing a voltage across the memory cell. The first mode may allow the use of the full range of the power supply voltage, which provides sufficient voltage across the memory cell to turn on the threshold switching selector. In the second mode the magnitude of the read current is less dependent on the voltage across the memory cell. The second mode therefore provides for accurate sensing of the memory cell. The first mode may also be used when writing the memory cell, which provides sufficient voltage across the memory cell to write the memory cell.