Invention Grant
- Patent Title: Structure for reducing pre-charge voltage for static random-access memory arrays
-
Application No.: US15155236Application Date: 2016-05-16
-
Publication No.: US09721050B2Publication Date: 2017-08-01
- Inventor: Alexander Fritsch , Amira Rozenfeld , Rolf Sautter , Dieter Wendel
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Robert J. Shatto
- Main IPC: G11C11/00
- IPC: G11C11/00 ; G06F17/50 ; G11C11/419 ; G11C11/418 ; H01L23/528 ; H01L27/11 ; G11C7/10 ; G11C7/12 ; G11C7/18

Abstract:
A memory cell arrangement of SRAM cell groups may be provided in which in each of the groups multiple SRAM cells are connected to an input of a local read amplifier by at least one common local bit-line. Outputs of the amplifiers are connected to a shared global bit-line. The global bit-line is connected to a pre-charge circuit, and the pre-charge circuit is adapted for pre-charging the global bit-line with a programmable pre-charge voltage before reading data. The pre-charge circuit comprises a limiter circuit which comprises a pre-charge regulator circuit connected to the global bit-line to pre-charge the global bit-line with the programmable pre-charge voltage, and an evaluation and translation circuit connected to the pre-charge regulator circuit and the global bit-line to compensate leakage current of the global bit-line without changing its voltage level.
Public/Granted literature
- US20170047112A1 DESIGN STRUCTURE FOR REDUCING PRE-CHARGE VOLTAGE FOR STATIC RANDOM-ACCESS MEMORY ARRAYS Public/Granted day:2017-02-16
Information query