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:
Feb. 04, 2025
Filed:
Mar. 08, 2021
Rambus Inc., Sunnyvale, CA (US);
Thomas Vogelsang, Mountain View, CA (US);
Brent S. Haukness, Sunnyvale, CA (US);
Rambus Inc., San Jose, CA (US);
Abstract
The dynamic memory array of a DRAM device is operated using at least two voltages. The first voltage, which is used to power the sense amplifiers during sense (i.e., read) operations and most other column operations (e.g., precharge, activate, write), is the operating (i.e., switching) voltage of a majority of the digital logic circuitry of the DRAM device. The second voltage, which determines the voltage written to the capacitor of the DRAM cells (i.e., bitline voltage) is greater than the operating (i.e., switching) voltage of a majority of the digital logic circuitry of the DRAM device. The digital logic circuitry is operated using a supply voltage that is lower than the voltage written to the capacitors of the DRAM array. This allows lower voltage swing digital logic to be used for a majority of the logic on the DRAM device while writing a larger voltage to the DRAM cells.