throbber
(12) United States Patent
`Ooishi et al.
`
`111111
`
`1111111111111111111111111111111111111111111111111111111111111
`US006292015Bl
`US 6,292,015 Bl
`*Sep.18,2001
`
`(10) Patent No.:
`(45) Date of Patent:
`
`(54) SEMICONDUCTOR INTEGRATED CIRCUIT
`DEVICE INCLUDING LOGIC GATE THAT
`ATTAINS REDUCTION OF POWER
`CONSUMPTION AND HIGH-SPEED
`OPERATION
`
`(75)
`
`Inventors: Tsukasa Ooishi; Masatoshi Ishikawa,
`both of Hyogo (JP)
`
`(73) Assignee: Mitsubishi Denki Kabushiki Kaisha,
`Tokyo (JP)
`
`8/1997 Arimoto eta!. .
`5,659,517
`5,726,946 * 3/1998 Yamagata eta!.
`
`365/226
`
`OTHER PUBLICATIONS
`
`"1-V Power Supply High-Speed Digital Circuit Technology
`with Multithreshold-Voltage CMOS", by Mutoh, et al.,
`Journal of Solid-State Circuits, vol. 30, No. 8,Aug. 1995, p.
`847-854.
`
`( *) Notice:
`
`This patent issued on a continued pros(cid:173)
`ecution application filed under 37 CFR
`1.53( d), and is subject to the twenty year
`patent term provisions of 35 U.S.C.
`154(a)(2).
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`(21) Appl. No.:
`
`(22) Filed:
`
`09/272,316
`
`Mar. 19, 1999
`
`(30)
`
`Foreign Application Priority Data
`
`May 26, 1998
`Dec. 8, 1998
`
`(JP) ................................................. 10-144359
`(JP) ... ... ... ... .... ... ... ... ... .... ... ... ... ... ... .. 10-348864
`
`(51)
`
`Int. Cl? ..................................................... H03K 17/16
`
`(52) U.S. Cl. ................................ 326/33; 326/83; 326/101
`(58) Field of Search .................................. 326/33, 34, 83,
`326/119, 121, 101
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`5,583,457 * 12/1996 Horiguch et a!. .................... 326/121
`
`Ext Vee
`
`* cited by examiner
`
`Primary Examiner-Michael Tokar
`Assistant Examiner-Anh Tran
`
`(74) Attorney, Agent, or Firm-McDermott, Will & Emery
`
`(57)
`
`ABSTRACT
`
`A semiconductor integrated circuit device has a hierarchical
`power supply system for a logic circuit. Inverters are pro(cid:173)
`vided with power supply from a main power supply line and
`a sub-power supply line of a higher potential and a main
`ground line and a sub-ground line of a lower potential. An
`internal power supply voltage-down converter is placed to
`set the voltage of the main power supply line higher than a
`normal operation voltage of the higher potential. An internal
`supply voltage boosting circuit is placed to set the voltage of
`the main ground line lower than a normal operation voltage
`of the lower potential. When respective power supply lines
`are short-circuited by a switching transistor, the voltage of
`each power supply line can be maintained at an operation
`supply voltage.
`
`19 Claims, 67 Drawing Sheets
`
`REFERENCE
`VOLTAGE
`GENERATION
`CIRCUIT
`
`555
`
`L1
`
`L3
`
`0001
`
`AMD EX1024
`U.S. Patent No. 6,239,614
`
`

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`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 4 of 67
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`U.S. Patent
`
`Sep.18,2001
`
`Sheet 5 of 67
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`US 6,292,015 Bl
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`

`U.S. Patent
`US. Patent
`
`Sep. 18,2001
`Sep. 18, 2001
`
`Sheet 6 of 67
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`U.S. Patent
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`Sep.18,2001
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`U.S. Patent
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`Sep.18,2001
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`Sheet 8 of 67
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`U.S. Patent
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`Sep.18,2001
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`U.S. Patent
`US. Patent
`
`Sep.18,2001
`Sep. 18, 2001
`
`Sheet 11 of 67
`Sheet 11 0f 67
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`U.S. Patent
`US. Patent
`
`Sep.18,2001
`Sep.18,2001
`
`Sheet 12 of 67
`Sheet12 0f67
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`US 6,292,015 Bl
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`0014
`
`

`

`U.S. Patent
`
`Sep. 18,2001
`
`Sheet 14 of 67
`
`US 6,292,015 Bl
`
`FIG.14
`
`FROM DRIVER FROM NOR
`CIRCUIT 220
`CIRCUIT 222
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`

`

`FIG.15
`
`CLK
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`0016
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`

`

`U.S. Patent
`US. Patent
`
`Sep.18,2001
`Sep. 18, 2001
`
`Sheet 16 of 67
`Sheet 16 0f 67
`
`US 6,292,015 Bl
`US 6,292,015 B1
`
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`FIG.17
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`FIG.18
`IN READING
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`0019
`
`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 19 of 67
`
`US 6,292,015 Bl
`
`Q)
`
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`
`0020
`
`

`

`FIG.20
`
`VDCSc
`
`Ext Vee
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`VDC5a
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`l ___ j _________________ l
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`0021
`
`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 21 of 67
`
`US 6,292,015 Bl
`
`en
`.....
`w
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`0022
`
`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 22 of 67
`
`US 6,292,015 Bl
`
`FIG.22
`
`136a
`
`135
`
`FIG.23
`
`CONDITIONS FOR SIMULATION
`
`Vdd=1.35V(1.5X0.9)
`ExtVcc=2.25V(2.5X0.9)
`TEMPERATURE=120"C
`
`SUPPLY LINE MAIN SUPPLY LINE/MAIN GROUND LINE : ALUMINUM 10 p. m
`SUB-SUPPLY LINE/SUB-GROUND LINE : ALUMINUM 5 J1. m
`
`SWITCHING VthpNthn=-0.59/0.39
`TRANSISTOR Lp/Ln=0.25/0.25
`Wp!Wn= 1 000/500
`
`INVERTER
`
`VthpNthn=-0.17/0.20
`Lp/Ln=0.25/0.25
`Wp!Wn=20/1 0
`
`0023
`
`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 23 of 67
`
`US 6,292,015 Bl
`
`F/G.24
`
`PRIOR ART
`
`CONVENTIONAL HIERARCHICAL
`POWER SUPPLY SYSTEM
`
`VOLTS
`
`1 6
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`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 24 of 67
`
`US 6,292,015 Bl
`
`DLCC SYSTEM
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`FIG.25
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`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 25 of 67
`
`US 6,292,015 Bl
`
`FIG.26
`
`AVERAGE SPEED OF INVERTER
`0.24 . . . . - - - - - - - - - - - - - - ,
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`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 26 of 67
`
`US 6,292,015 Bl
`
`FIG.28
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`

`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 27 of 67
`
`US 6,292,015 Bl
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`FIG.29
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`

`U.S. Patent
`
`Sep.18,2001
`
`Sheet 28 of 67
`
`US 6,292,015 Bl
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`FIG.30
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`U.S. Patent
`US. Patent
`
`Sep.l8,2001
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`Sheet 29 of 67
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`US 6,292,015 Bl
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`U.S. Patent
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`Sep.18,2001
`Sep.18,2001
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`Sheet 30 of 67
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`U.S. Patent
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`Sep.18,2001
`Sep.18,2001
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`Sep.18,2001
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`U.S. Patent
`US. Patent
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`Sep.l8,2001
`Sep.18,2001
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`FIG. 42
`
`721c 725
`\
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`FIG. 42
`
`720a
`
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`
`0040
`
`

`

`FIG. 43
`
`724b
`723
`725 721d I 722a 722b 720a 720b 721a 724a 7251725 723 721f
`
`FIG. 43
`
`
`
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`
`

`

`U.S. Patent
`US. Patent
`
`Sep. 18, 2001
`Sep.18,2001
`
`Sheet 41 of 67
`Sheet 41 0f 67
`
`US 6,292,015 Bl
`US 6,292,015 B1
`
`-E-..(
`
`FIG.44
`
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`

`FIG. 45
`
`717b
`
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`
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`r X3
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`0043
`
`

`

`FIG. 46
`717b
`
`717b
`
`717a 718a
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`X1 719a 717a
`
`717c
`
`717c
`
`FIG. 46
`
`17a 718a
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`
`0044
`
`
`
`
`
`
`
`

`

`FIG. 47
`
`717b
`
`717b
`
`720a 720a 718a 717a X1 719a 717a
`
`720a _J
`
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`
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`0045
`
`

`

`FIG. 48
`
`FIG. 48
`
`721C
`
`721d
`
`721b 720a 720a 721a717a X1 7193 717a 721b 721f
`
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