* SPICE netlist
M7 Y E N004 N004 NMOS
M8 N004 F N005 N005 NMOS
M10 Y C N005 N005 NMOS
V1 Vdd 0 5
V2 E 0 PULSE(0 5 20n 0.1n 0.1n 5n 10n)
V3 D 0 PULSE(0 5 10n 0.1n 0.1n 5n 10n)
V4 C 0 PULSE(0 5 1n 0.1n 0.1n 5n 10n)
V5 F 0 0
V6 A 0 PULSE(0 5 5n 0.1n 0.1n 5n 10n)
V7 B 0 5
M9 N005 B N006 N006 NMOS
M11 N006 A 0 0 NMOS
M12 N005 D N006 N006 NMOS
M1 N003 A Vdd Vdd PMOS
M2 N003 B N001 N001 PMOS
M3 N001 D Vdd Vdd PMOS
M4 N003 C N002 N002 PMOS
M5 N002 F Vdd Vdd PMOS
M6 N002 E Vdd Vdd PMOS
V_cmos N003 Y 0
.tran 70n

* LTspice schematic (.asc)
Version 4
SHEET 1 1664 1568
WIRE -480 -784 -544 -784
WIRE -544 -672 -544 -784
WIRE 368 -672 336 -672
WIRE 400 -672 368 -672
WIRE -176 -608 -208 -608
WIRE -544 -544 -544 -592
WIRE -208 -512 -208 -608
WIRE 368 -512 368 -672
WIRE 368 -512 192 -512
WIRE 640 -512 368 -512
WIRE 368 -496 368 -512
WIRE 640 -496 640 -512
WIRE 640 -496 544 -496
WIRE 752 -496 640 -496
WIRE 304 -480 288 -480
WIRE 320 -480 304 -480
WIRE 496 -480 480 -480
WIRE 816 -480 800 -480
WIRE 832 -480 816 -480
WIRE 192 -416 192 -512
WIRE 144 -400 128 -400
WIRE -752 -384 -816 -384
WIRE -208 -368 -208 -432
WIRE 368 -352 368 -400
WIRE 544 -352 544 -400
WIRE 624 -352 544 -352
WIRE 752 -352 752 -400
WIRE 752 -352 624 -352
WIRE 304 -336 288 -336
WIRE 320 -336 304 -336
WIRE 704 -336 672 -336
WIRE 720 -336 704 -336
WIRE -816 -304 -816 -384
WIRE 192 -192 192 -320
WIRE 368 -192 368 -256
WIRE 368 -192 192 -192
WIRE 624 -192 624 -256
WIRE 624 -192 368 -192
WIRE -816 -160 -816 -224
WIRE 368 -160 368 -192
WIRE -192 -112 -256 -112
WIRE -256 -32 -256 -112
WIRE -784 16 -832 16
WIRE 368 16 368 -80
WIRE 608 16 368 16
WIRE 368 48 368 16
WIRE 368 48 272 48
WIRE 464 48 368 48
WIRE -832 80 -832 16
WIRE -256 80 -256 48
WIRE 272 96 272 48
WIRE 208 176 192 176
WIRE 224 176 208 176
WIRE 464 176 464 48
WIRE -832 208 -832 160
WIRE 544 256 512 256
WIRE 272 320 272 192
WIRE -800 368 -832 368
WIRE -240 368 -288 368
WIRE 208 400 192 400
WIRE 224 400 208 400
WIRE -288 432 -288 368
WIRE -832 448 -832 368
WIRE -288 448 -288 432
WIRE 272 448 272 416
WIRE 368 448 272 448
WIRE 464 448 464 272
WIRE 464 448 368 448
WIRE 368 512 368 448
WIRE 368 512 272 512
WIRE 464 512 368 512
WIRE -832 576 -832 528
WIRE -288 576 -288 512
WIRE 208 592 192 592
WIRE 224 592 208 592
WIRE 544 592 512 592
WIRE 560 592 544 592
WIRE 368 608 272 608
WIRE 464 608 368 608
WIRE 368 656 368 608
WIRE 448 736 416 736
WIRE 464 736 448 736
WIRE 368 784 368 752
FLAG 608 16 Y
FLAG 368 -672 Vdd
FLAG -480 -784 Vdd
FLAG -544 -544 0
FLAG -752 -384 E
FLAG -176 -608 F
FLAG -784 16 D
FLAG -192 -112 A
FLAG -800 368 C
FLAG -240 368 B
FLAG -832 576 0
FLAG -288 576 0
FLAG -256 80 0
FLAG -832 208 0
FLAG -816 -160 0
FLAG -208 -368 0
FLAG 368 784 0
FLAG 448 736 A
FLAG 128 -400 A
FLAG 544 592 B
FLAG 304 -336 B
FLAG 208 592 D
FLAG 304 -480 D
FLAG 544 256 C
FLAG 704 -336 C
FLAG 208 400 F
FLAG 480 -480 F
FLAG 208 176 E
FLAG 816 -480 E
SYMBOL nmos 224 96 R0
SYMATTR InstName M7
SYMBOL nmos 224 320 R0
SYMATTR InstName M8
SYMBOL nmos 512 176 M0
SYMATTR InstName M10
SYMBOL voltage -544 -688 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -816 -320 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 20n 0.1n 0.1n 5n 10n)
SYMBOL voltage -832 64 R0
SYMATTR InstName V3
SYMATTR Value PULSE(0 5 10n 0.1n 0.1n 5n 10n)
SYMBOL voltage -832 432 R0
SYMATTR InstName V4
SYMATTR Value PULSE(0 5 1n 0.1n 0.1n 5n 10n)
SYMBOL voltage -208 -528 R0
SYMATTR InstName V5
SYMATTR Value 0
SYMBOL voltage -256 -48 R0
SYMATTR InstName V6
SYMATTR Value PULSE(0 5 5n 0.1n 0.1n 5n 10n)
SYMBOL voltage -288 416 R0
SYMATTR InstName V7
SYMATTR Value 5
SYMBOL nmos 512 512 M0
SYMATTR InstName M9
SYMBOL nmos 416 656 M0
SYMATTR InstName M11
SYMBOL nmos 224 512 R0
SYMATTR InstName M12
SYMBOL pmos 144 -320 M180
SYMATTR InstName M1
SYMBOL pmos 320 -256 M180
SYMATTR InstName M2
SYMBOL pmos 320 -400 M180
SYMATTR InstName M3
SYMBOL pmos 672 -256 R180
SYMATTR InstName M4
SYMBOL pmos 496 -400 M180
SYMATTR InstName M5
SYMBOL pmos 800 -400 R180
SYMATTR InstName M6
SYMBOL voltage 368 -176 R0
SYMATTR InstName V_cmos
SYMATTR Value 0