Carbon nanotube field effect transistorcntfet is an promising alternative of an conventional cmos technology in future. Intrinsic elements chishuen lee, eric pop, senior member, ieee, aaron d. Carbon nanotube field effect transistor cntfet is an promising alternative of an conventional cmos technology in future. Philip wong, fellow, ieee abstractwe presents a datacalibrated compact model of. If its name contains version xxplus, it describes the actual code status, found at the date of issue in the git source code management scm tool. Stanford cnfet model hspice stanford nanoelectronics lab. Cntfet sbcntfet 4, the conventional cntfet ccntfet featuring a doping profile similar to nmosfet 5, the dualgate cntfet exhibits n or ptype unipolar behavior tunable by electrostatic doping 6 and the tunneling cntfet 7. The procedure for opening an xwindow varies depending on the type of computer you are using. Cntfet sb cntfet 4, the conventional cntfet c cntfet featuring a doping profile similar to nmosfet 5, the dualgate cntfet exhibits n or ptype unipolar behavior tunable by electrostatic doping 6 and the tunneling cntfet 7. Spice reads in a list of circuit nodes and the elements between. Although spice comes in many flavors you think thats a bad pun, keep reading, we strongly.
Stanford university virtualsource carbon nanotube field. However, there is very little literature discussing the procedures to use cntfet for developing vlsi circuits. For more details on hspice input file format, please refer to the. Hspice also has specific file naming conventions to indicate the function of each file.
The starhspice optimizing analog circuit simulator is a industrialgrade circuit analysis product for the simulation of electrical circuits in steadystate, transient, and frequency domains. The contents of this file appear later in this section. It models voltage controlled current source i btbt in order to evaluate the device subthreshold behaviour and the static power consumption. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. To establish a simple and high accuracy cntfet model in hspice, based on the semiclassical model of cntfet, the relationship between selfconsistent electric potential and carrier density is. Pdf modelling and characterization of cntfet using. Input parameters for demonstration input value type 1 s 10 nm w 1. With over 500,000 copies distributed so far, many users have reported. The linked sites, articles and presented information are provided as a useful insight to help you decide on the type of engineering expert you might need. Hspice simulation and analysis user guide version y2006. Capacitance model see capacitance model in the starhspice manual.
A hspice model of carbon nanotube field effect transistor. Starhspice quick reference guide 35 if a capacitor model exists using the same name as a parameter for capval, the model name is taken to avoid syntactic conflicts. As far as it is known, this is the first attempt to design half subtractor and full subtractor using cntfet. Hspice elements and device models manual version x2005. Modelling and characterization of cntfet using hspice currently cntfets have been used for various applications in building vlsi circuits. However, there is very little literature discussing the. The cntfet model works for mosfet like cnfet device. Before running hspice, users should execute the command source usrclassee dot. The page numbers in the rest of this document refer to this manual. Cntfet hspice models are selected from 22 and 32nm bsim ptm predictive technology model simosfet, respectively. Originally developed at berkeley in the late 60s and early 70s, spice has evolved into one of the tools of choice for circuit simulation.
Hspice simulation and analysis user guide version x2005. Currently cntfets have been used for various applications in building vlsi circuits. Its n structure albeit simple provides a behavior like. Included in this manual are detailed command descriptions, startup option definitions, and a pspice your microsoft windows users guide. This manual is not a book about learning spice usage, however the novice user may. Hspice is just a program that takes in a netlist a simple text. Oct 04, 2014 carbon nanotube field effect transistor cntfet is an promising alternative of an conventional cmos technology in future. How to use this manual the manual is a work in progress. Overview of mosfet models mosfet output templates ideally, m1 one finger and m2 five fingers should have same values of channel current since their w and l values are same, but these values are different because for the fingered mosfets, the channel current, effective. Simulation results were carried out using hspice based on the cntfet model in 32 nanometer technology in different values of vdd at room temperature. Modelling and characterization of cntfet using hspice. A compact virtualsource model for carbon nanotube fieldeffect transistors in the sub10nm regimepart i. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and modify circuit designs.
Related documents the following documents pertain to. If you have questions, read the section on workstation basics later in this handout. Capnxxx for nodal capacitance output, hspice prints or plots the capacitance of the specified node nxxxx. Im doing schematic and simulation of opamp circuit using synopsys hspice 90nm technology. If you are not familiar with one of these editors, be sure to attend one of the athena minicourses offered andor get a hold of a manual for emacs or vi. Franklin, senior member, ieee, wilfried haensch, fellow, ieee, and h.
M multiplier used to simulate multiple parallel capacitors. Significant problems with ac sensitivities in 3f2 only have been fixed. A compact virtualsource model for carbon nanotube field. This manual contains the reference material needed when working with special circuit analyses in pspice. Nisha sarwade 50 international journal of emerging trends in electrical and electronics ijetee issn.
Results of the perfect design has been performed in 32nm technology and on comparison with a cmos technology based subtractor. Spice was originally created when punchcards were the primary method of computer input. Hspice simulation of d latch and double edge triggered flip. Brief introduction to hspice simulation wojciech giziewicz 1 introduction this document is based on one written by ihsan djomehri, spring 1999. Awaves is a program that allows you to graphically plot the results of the hspice analysis. This manual generally follows the conventions used in the microsoft windows users guide. However, you will need to explicitly command hspice to generate the extra. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and. Carbon nanotubes are becoming more and more popular due to its mechanical and electrical properties. Tips for using hspice university of california, berkeley. The subject of this paper is the convetional cntfet.
Multiple analyses and plots in spice2 emulation mode under 3f2 and earlier. Hspice mockups have been achieved on the subtractor designed using the modelled cntfet. Hspice tutorial university of california, berkeley. This manual is intended to provide a complete description of ngspices functionality, features, commands, and procedures.
1070 1445 504 1107 1265 1256 80 1174 983 1442 46 1461 912 620 1551 86 1237 223 1009 1538 419 285 1381 1508 947 101 354 692 1179 1374 1330 742 615 718 735 912 1398 1336 323 648 205 186 866 280 1387