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Lec-04-Manufacturing - EE115C Winter 2007 Digital...

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EE115C – Winter 2007 Digital Electronic Circuits Lecture 4: MOS Capacitance CMOS Manufacturing EE115C – Winter 2007 2 Announcements Starting next week: Wed (3-4pm) discussions Moved to MS-5118 Homework #1 posted Due Thu, Jan 25 @ 2pm Seminar next Monday, Jan 22 54-134 Eng IV, 1-2pm Extending and Expanding Moore's Law -- Challenges and Opportunities Shekhar Borkar Intel Microprocessor Technology Lab
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EE115C – Winter 2007 3 Agenda Last Lecture Subthreshold MOS IV characteristics Modes of Operation: Off, Linear, Velocity Saturation , Saturation MOS RC Model Today MOS Capacitances Delay Analysis EE115C – Winter 2007 4 MOS Transistor: Regions of Operation Linear Relationship -4 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 x 10 Velocity Saturation V DS (V) I D (A) V DS = V GT V DSAT = V GT Saturation Linear V DS = V DSAT Define V GT = V GS – V T V DSAT L · ξ c
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EE115C – Winter 2007 5 B D G I D S ( ) DS GT D V V V V L W k I + = λ 1 2 ' 2 min min for V GT 0: I D = 0 with V min = min ( V GT , V DS , V DSAT ) for V GT 0: define V GT = V GS V T Regions of Operation: Simply look at the Min function… Sat Lin V-Sat A Unified Model for Manual Analysis EE115C – Winter 2007 6 Also Sub-Threshold Conduction… Typical values for S: 60 – 100 mV/decade The Slope Factor ox D nkT qV D C C n e I I GS + = 1 , ~ 0 S is V GS for I D 2 / I D 1 =10 0 0.5 1 1.5 2 2.5 10 -12 10 -10 10 -8 10 -6 10 -4 10 -2 V T Linear Exponential Quadratic V GS (V) I D (A) ( ) 0 1 1 GS DS qV qV nkT kT D DS I I e e V λ = × +
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EE115C – Winter 2007 7 B D G I D S ( ) DS GT D V V V V L W k I + = λ 1 2 ' 2 min min for V GT 0 (sub-V TH ): with V min = min ( V GT , V DS , V DSAT ) for V GT 0 (Lin, Sat, V-Sat): define V GT = V GS V T Summary: Deep Submicron MOS I-V Model Sat Lin V-Sat ( ) 0 1 1 GS DS qV qV nkT kT D DS I I e e V λ = × + EE115C – Winter 2007 8 .MODEL Parameters MOS1 (Basic Parameters) .MODEL Modname NMOS/PMOS <VT0= VT0 …>
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EE115C – Winter 2007 9 In Reality: GPDK090 Model (gpdk090_mos.scs) section TT_s1v parameters + s1v_rs_ne = 0.000000e+000 s1v_vsat_ne = 1.120000e+005 s1v_pldd_surf = 6.000000e+019 + s1v_uc1_ne = 3.700000e-010 s1v_u0_ne = 2.000000e-002 s1v_nch_ne = 5.200000e+017 + s1v_rsc_ne = 4.082483e-014 s1v_cgbo_ne = 1.482000e-011 s1v_prt_ne = 1.000000e+001 + s1v_rdc_ne = 4.082483e-014 s1v_vth0_ne = 1.692662e-001 s1v_k2_ne = 0.000000e+000 + s1v_cgdo_ne = 2.667600e-010 s1v_ckappa_ne =4.605336e+000 s1v_wint_ne = 6.000000e-009 + s1v_k1_ne = 2.825346e-001 s1v_cgsl_ne = 1.111500e-010 s1v_nldd_surf = 3.000000e+019 + s1v_js_ne = 3.366667e-006 s1v_hdif_ne = 1.400000e-007 s1v_rdsw_ne = 3.900000e-006 + s1v_jsw_ne = 3.366667e-010 s1v_tox_ne = 2.330000e-009 s1v_cj_ne = 7.983537e-004 + s1v_cjsw_ne = 4.790122e-011 s1v_ldif_ne = 1.000000e-008 s1v_xj_ne = 2.500000e-008 + s1v_rd_ne = 0.000000e+000 s1v_pb_ne = 9.918524e-001 s1v_cf_ne = 4.594612e-011 + s1v_lint_ne = 1.500000e-008 s1v_cjswg_ne = 1.995884e-011 s1v_rsh_ne = 1.000000e+001 + s1v_u0_pe = 1.200000e-002 s1v_nch_pe = 4.000000e+017 s1v_rsc_pe = 2.886751e-014 + s1v_cgbo_pe = 1.392363e-011 s1v_rdc_pe = 2.886751e-014 s1v_vth0_pe = -1.359511e-001 + s1v_k2_pe = 0.000000e+000 s1v_cgdo_pe = 2.506253e-010 s1v_ckappa_pe = 1.043477e+001 + s1v_wint_pe = 5.000000e-009 s1v_k1_pe = 2.637520e-001 s1v_cgsl_pe = 1.044272e-010 + s1v_js_pe = 3.350000e-006 s1v_hdif_pe = 1.400000e-007 s1v_rdsw_pe = 7.800000e-006 + s1v_jsw_pe = 3.350000e-010 s1v_tox_pe = 2.480000e-009 s1v_cj_pe = 7.912252e-004 + s1v_cjsw_pe = 4.747351e-011 s1v_ldif_pe = 1.000000e-008 s1v_xj_pe = 2.500000e-008 + s1v_rd_pe = 0.000000e+000 s1v_pb_pe = 1.009805e+000 s1v_cf_pe = 4.527118e-011 + s1v_lint_pe = 1.500000e-008
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