MOSFET MODELING FOR VLSI SIMULATION - Theory and Practice Episode 12 ppt

... depletion HF C-V curve from an MOS capacitor. 29 __ _- 1-9 g-lng-1 1-9 416 9 Data Acquisition and Model Parameter Measurements I TEST SIGNAL - GROUND HP4275A LCR METER - Fig. 9.9 ... 0" W 0 2 - 2 2 4 0 W I- < W I I I I -5 .0 -3 .0 -1 .0 1.0 3.0 5 GATE VOLTAGE V,,(V) Fig. 9.14 Typical high-frequency C-V plot of an...

Ngày tải lên: 13/08/2014, 05:22

... >" ;- I 5 0.4 lY I bO.3 195 1'1'1'1'1~1'1'1~ I - Nb = 2 X 10'"cm-3 - - - - - W=20 m - f"\L "A&ING - I I 1 ... both pMOST and nMOST devices, a general expression for the threshold voltage can be written as (5.63) where the + and - signs are for n- and p-chan...

Ngày tải lên: 13/08/2014, 05:22

... + + pMOST - - - + terminal voltages as drain-source voltage Vds( = V, - VJ, gate-source voltage V,,( = V, - V,), and bulk-source voltage vb,( = vb - Vs). For normal DC ... 2 Basic Semiconductor and pn Junction Theory The variables F,,F, and F3 are F, =- *bi [l -( 1 - F,)&apos ;-& quot;] (1 -4 F2 = (1 - F,...

Ngày tải lên: 13/08/2014, 05:22

... Structure and Operation ~i 1; L 6i! - - - - - - - - - Fig. 3.3 1 Cross-section showing overlap capacitances between the source/drain and the gate which give rise to C,,, and CGDo ... order expression for Rsp, based on the assumption of uniform doping 128 4 MOS Capacitor I- -t > O O+ -0 .6 1 A1 (p-Si n+ Po~y(p-si) -o...

Ngày tải lên: 13/08/2014, 05:22

... df Qh Y <h VTO nMOST p-type - +- +++ pMOST n-type - -+ - (for metals and n+ polysilicon gate) - - (for metals and n+ polysilicon gate) + (for p+ polysilicon gate) (tax ... (1977). 128 1 A. H. Marshak and R. Shrivastava, ‘On threshold and flat-band voltages for MOS devices with polysilicon gate and nonuniformly doped substr...

Ngày tải lên: 13/08/2014, 05:22

... model for drain-induced barrierlowering and drain-induced high electric field in a short-channel MOSFET , Solid-State pp. 11 8-1 27 (1989). Electron., 30, pp. 50 3-3 11 (1987). [78] Y. Omura and ... (a) and (b) (Figs. 5.31 and 5.32) which are for Vsb = 3 V and 0 V, respectively. n-Channel Devices (nMOST). For n-channel enhancement devices (n' polysil...

Ngày tải lên: 13/08/2014, 05:22

... form that at first glance appears different. 6.7 Short-Geometry Models 3 - 2- - a 9- W- (7 5 9 1.75 Q t- 6 !I 3 t- 6 fJY 0.5 293 I = 1.31 x 104V/cm a= 1.13 0 - ... 274 6 MOSFET DC Model (6 .127 a) and (6 .127 b) in Eq. (6.130) yields Vmd Q,,(accumulation)d V,, + Q,,(depletion)dVy or - -Ys(Vm, - Vms) . 1 2 2 312 3...

Ngày tải lên: 13/08/2014, 05:22

... 308 3 .O 6 MOSFET DC Model I I 1 I I I pMOST toX = 105 A W,/L, = 10l0.5 v,, = -4 v h c E 4 v U I 1 .o I - -2 v 0.01 -1 - - 7- -1 - - i - I * " ... 6 MOSFET DC Model GATE SAT U R AT 10 N 4 DRAIN 1 L - - - - - - - - - - - D C 0 WY' L 4J-4 Fig. 6....

Ngày tải lên: 13/08/2014, 05:22