Semiconductor memory device having a hierarchical bit line struc

Details Semiconductor memory device having a hierarchical bit line struc Semiconductor memory device having a hierarchical bit line struc

1994-11-16

1997-03-11

Nelms, David C.

Static information storage and retrieval

Addressing

Plural blocks or banks

36518901, 365202, 365203, 365207, 36523005, G11C 800

Patent

active

056108710

ABSTRACT:
Bit lines includes sub-bit lines arranged corresponding to respective memory cell column groups, and also includes main bit lines MBLa and MBLb. When selecting a word line, a separation transistor is turned off, so that the main bit line is divided into two divided main bit lines, and a memory group including the selected word line and a memory cell block which is disposed at a symmetrical position with respect to the separation transistor are selected. After the separation transistor is turned off, sense amplifiers perform sensing operation. Influence against the sensing operation, which may be caused by noises due to a bit line capacitance, is prevented, and the hierarchical bit lines are accurately equalized and precharged.

REFERENCES:
patent: 4658377 (1987-04-01), McElroy
patent: 4819207 (1989-04-01), Sakui et al.
patent: 4943944 (1990-07-01), Sakui et al.
patent: 5245570 (1993-09-01), Fazio et al.
patent: 5367488 (1994-11-01), An
"Experimental 4-Mbit Peripheral CMOS Dynamic RAM Using a Trench-Type Transistor Cell", Shichijo et al., Nikkei Electronics, Jul. 14, 1986, pp. 189-208.
"Bidirectional Matched Global IT Line Scheme for High Density DRAMs", J. H. Ahn et al, 1993 Symposium on VLSI CIrcuit, Digest of Technical Papers, May 1993, pp. 91-92.

Affiliated with

Also associated with

Rating

Semiconductor memory device having a hierarchical bit line struc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor memory device having a hierarchical bit line struc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device having a hierarchical bit line struc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-449085