JPS641195A - Semiconductor storage device - Google Patents
Semiconductor storage deviceInfo
- Publication number
- JPS641195A JPS641195A JP62157053A JP15705387A JPS641195A JP S641195 A JPS641195 A JP S641195A JP 62157053 A JP62157053 A JP 62157053A JP 15705387 A JP15705387 A JP 15705387A JP S641195 A JPS641195 A JP S641195A
- Authority
- JP
- Japan
- Prior art keywords
- sense amplifier
- potential difference
- preamplifier
- read signal
- application
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title 1
Landscapes
- Semiconductor Memories (AREA)
- Dram (AREA)
Abstract
PURPOSE: To prevent a sense amplifier from malfunctioning by interposing a preamplifier which amplifies and outputs a potential difference generated between both bit lines at the time of the application of a read signal to a sense amplifier between a memory cell array and the sense amplifier.
CONSTITUTION: The preamplifier 14 which amplifies and outputs the potential difference generated between the 1st and 2nd bit lines 5a and 5b at the time of the application of the read signal to the sense amplifier 7 is interposed between the memory cell array 1 and sense amplifier 7, and the bit line potential generated by the preamplifier 14 at the time of the read signal application is amplified and outputted to the sense amplifier 7. Therefore, a potential difference which is larger than a specific value can be secured as the potential difference (bit line potential) to be applied to the sense amplifier 7. Consequently, even if cell area is small, the sense amplifier can be prevented from malfunctioning.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157053A JPS641195A (en) | 1987-06-23 | 1987-06-23 | Semiconductor storage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157053A JPS641195A (en) | 1987-06-23 | 1987-06-23 | Semiconductor storage device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH011195A JPH011195A (en) | 1989-01-05 |
JPS641195A true JPS641195A (en) | 1989-01-05 |
Family
ID=15641173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157053A Pending JPS641195A (en) | 1987-06-23 | 1987-06-23 | Semiconductor storage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS641195A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001057875A1 (en) * | 2000-02-04 | 2001-08-09 | Hitachi, Ltd. | Semiconductor device |
-
1987
- 1987-06-23 JP JP62157053A patent/JPS641195A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001057875A1 (en) * | 2000-02-04 | 2001-08-09 | Hitachi, Ltd. | Semiconductor device |
US6687175B1 (en) | 2000-02-04 | 2004-02-03 | Renesas Technology Corporation | Semiconductor device |
US6990002B2 (en) | 2000-02-04 | 2006-01-24 | Renesas Technology Corp. | Semiconductor device |
US7126868B2 (en) | 2000-02-04 | 2006-10-24 | Renesas Technology Corp. | Semiconductor device |
US7242627B2 (en) | 2000-02-04 | 2007-07-10 | Renesas Technology Corp. | Semiconductor device |
US7813156B2 (en) | 2000-02-04 | 2010-10-12 | Renesas Technology Corp. | Semiconductor device |
US8199549B2 (en) | 2000-02-04 | 2012-06-12 | Renesas Electronics Corporation | Semiconductor device |
US8605478B2 (en) | 2000-02-04 | 2013-12-10 | Renesas Electronics Corporation | Semiconductor device |
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