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:
May. 29, 2001
Filed:
Mar. 07, 2000
Duane Giles Laurent, Lewisville, TX (US);
Elmer Henry Guritz, Flower Mound, TX (US);
James Leon Worley, Flower Mound, TX (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
A circuit and method are disclosed for controlling bootstrap circuitry that boosts a voltage level appearing on word lines of a dynamic random access memory device. During execution of a memory access operation, the circuit is adapted to enable the bootstrap circuitry a period of time following the memory device's sense amplifiers initially powering up. The circuit senses when the voltage appearing on a select bit line crosses a predetermined voltage level, and enables the bootstrap circuitry thereafter. In this way, a period of time elapses between the sense amplifiers turning on and the activation of the bootstrap circuitry, thereby reducing noise introduced from the sense amplifiers turning on from impacting the operation of the bootstrap circuitry.