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US4761571A Expired / Lapsed US ⏱️ 0.0 years remaining

Memory circuit enchancement to stablize the signal lines with additional capacitance

Assignee: Samsung Electronics Co Ltd
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Filing: 1985-12-19
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Granted: 1988-08-02
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Expires: 2005-12-19
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Abstract

Abstract A memory system having voltage level circuit switching portions operated between signal lines stabilized by additional capacitance.

Inventors

  • 👤 Keith W. Golke
  • 👤 Robert L. Rabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 15:48
CPC Classifications
G; G11; G11C; G11C7/00; G11C7/12; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/413; G11C11/417; G11C11/419

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 293 words
An improvement for monolithic integrated circuits having a voltage level state switching circuit arrangement therein subject to an electrical charge generating disturbances where such voltage level states represent logic signals or data signals, said arrangement comprising at least in part a plurality of signal line pairs including first and second signal line pairs with each member line of said signal line pairs being capable of conducting electrical signals and with each of said first and second signal line pairs having at least one circuit portion electrically connected between its said member lines, including a first pair first circuit portion electrically connected between first signal line pair member lines and a second pair first circuit portion electrically connected between said second signal line pair member lines, such that either of said first and second circuit portions, upon receiving an access signal, can cause a selected one of said member lines connected thereto as aforesaid to be in a selected voltage level state and can cause said other member line connected thereto to be in a different voltage level state, said improvement in combination with the foregoing comprising: a stabilizing capacitance electrically connected through a plurality of unidirectional current conducting means individually to member lines of said plurality of signal line pairs, including being electrically connected through a first unidirectional current conducting means to one of said member lines of said first signal pair and through a second unidirectional current conducting means to that remaining said member line of said first signal line pair, and again through a third unidirectional current conducting means to one of said member lines of said second signal line pair and through a fourth unidirectional current conducting means to that remaining said member line of said second signal line pair.
Claim 2
Dependent Claim 293 words
An improvement for monolithic integrated circuits having a voltage level state switching circuit arrangement therein subject to an electrical charge generating disturbances where such voltage level states represent logic signals or data signals, said arrangement comprising at least in part a plurality of signal line pairs including first and second signal line pairs with each member line of said signal line pairs being capable of conducting electrical signals and with each of said first and second signal line pairs having at least one circuit portion electrically connected between its said member lines, including a first pair first circuit portion electrically connected between first signal line pair member lines and a second pair first circuit portion electrically connected between said second signal line pair member lines, such that either of said first and second circuit portions, upon receiving an access signal, can cause a selected one of said member lines connected thereto as aforesaid to be in a selected voltage level state and can cause said other member line connected thereto to be in a different voltage level state, said improvement in combination with the foregoing comprising: a stabilizing capacitance electrically connected through a plurality of unidirectional current conducting means individually to member lines of said plurality of signal line pairs, including being electrically connected through a first unidirectional current conducting means to one of said member lines of said first signal pair and through a second unidirectional current conducting means to that remaining said member line of said first signal line pair, and again through a third unidirectional current conducting means to one of said member lines of said second signal line pair and through a fourth unidirectional current conducting means to that remaining said member line of said second signal line pair.
Claim 3
Dependent Claim 26 words
The improvement of claim 1 which further comprises a first charging means which can be directed to charge said stabilizing capacitance to a selected voltage level.
Claim 4
Dependent Claim 45 words
The improvement of claim 1 wherein said monolithic integrated circuit is a MOS field-effect transistor based integrated circuit having n-type conductivity regions serving at least in part as a portion of a said member line of each of said first and second signal line pairs.
Claim 5
Dependent Claim 37 words
The improvement of claim 2 which further comprises a second charging means in said integrated circuit which can be directed to charge said first and second signal line pairs member lines to a common voltage level state.
Claim 6
Dependent Claim 45 words
The improvement of claim 2 wherein said monolithic integrated circuit is a MOS field-effect transistor based integrated circuit having n-type conductivity regions serving at least in part as a portion of a said member line of each of said first and second signal line pairs.
Claim 7
Dependent Claim 39 words
The improvement of claim 3 wherein said unidirectional current conducting means are each a Schottky diode having its anode directed toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 8
Dependent Claim 39 words
The improvement of claim 3 wherein said unidirectional current conducting means are each a junction diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line and a said signal line pair.
Claim 9
Dependent Claim 45 words
The improvement of claim 4 wherein said monolithic integrated circuit is a MOS field-effect transistor based integrated circuit having n-type conductivity regions serving at least in part as a portion of a said member line of each of said first and second signal line pairs.
Claim 10
Dependent Claim 34 words
The improvement of claim 4 wherein said first and second charging means each have a control terminal means to receive directions to begin and end charging and which are electrically connected to one another.
Claim 11
Dependent Claim 39 words
The improvement of claim 4 wherein said unidirectional current conducting means are each a Schottky diode having its anode directed toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 12
Dependent Claim 39 words
The improvement of claim 4 wherein said unidirectional current conducting means are each a junction diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 13
Dependent Claim 39 words
The improvement of claim 5 wherein said unidirectional current conducting means are each a Schottky diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 14
Dependent Claim 39 words
The improvement of claim 5 wherein said unidirectional current conducting means are each a junction diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 15
Dependent Claim 21 words
The improvement of claim 6 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 16
Dependent Claim 21 words
The improvement of claim 7 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 17
Dependent Claim 39 words
The improvement of claim 8 wherein said unidirectional current conducting means are each a Schottky diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 18
Dependent Claim 39 words
The improvement of claim 8 wherein said unidirectional current conducting means are each a junction diode having its anode directing toward said stabilizing capacitance and its cathode directed toward a said member line of a said signal line pair.
Claim 19
Dependent Claim 21 words
The improvement of claim 10 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 20
Dependent Claim 22 words
The improvement of claim 11 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field effect transistors.
Claim 21
Dependent Claim 21 words
The improvement of claim 12 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 22
Dependent Claim 21 words
The improvement of claim 13 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 23
Dependent Claim 21 words
The improvement of claim 16 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.
Claim 24
Dependent Claim 21 words
The improvement of claim 17 wherein said MOS field-effect transistor based integrated circuit contains both n-channel and p-channel MOS field-effect transistors.

References Cited (Backward Citations)

US4031522A Cited
US4207616A Cited
US4397003A Cited
US4476547A Cited
US4622655A Cited
US4598389A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-08-02 1992-02-01 1992-08-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-08-02 1996-02-01 1996-08-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-08-02 2000-02-01 2000-08-02 $7700.00 Window Closed / Lapsed

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