Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and modify circuit designs. However, you will need to explicitly command hspice to generate the extra. Carbon nanotube field effect transistorcntfet is an promising alternative of an conventional cmos technology in future. The contents of this file appear later in this section. 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 also has specific file naming conventions to indicate the function of each file. 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. However, there is very little literature discussing the. The subject of this paper is the convetional cntfet.
Carbon nanotubes are becoming more and more popular due to its mechanical and electrical properties. This manual is intended to provide a complete description of ngspices functionality, features, commands, and procedures. Stanford university virtualsource carbon nanotube field. Hspice tutorial university of california, berkeley. Oct 04, 2014 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. Modelling and characterization of cntfet using hspice. Pdf modelling and characterization of cntfet using. Hspice mockups have been achieved on the subtractor designed using the modelled cntfet. This manual generally follows the conventions used in the microsoft windows users guide. It models voltage controlled current source i btbt in order to evaluate the device subthreshold behaviour and the static power consumption.
M multiplier used to simulate multiple parallel capacitors. Spice was originally created when punchcards were the primary method of computer input. The page numbers in the rest of this document refer to this manual. Tips for using hspice university of california, berkeley. Capacitance model see capacitance model in the starhspice manual. Included in this manual are detailed command descriptions, startup option definitions, and a pspice your microsoft windows users guide. Nisha sarwade 50 international journal of emerging trends in electrical and electronics ijetee issn. As far as it is known, this is the first attempt to design half subtractor and full subtractor using cntfet. Significant problems with ac sensitivities in 3f2 only have been fixed. Franklin, senior member, ieee, wilfried haensch, fellow, ieee, and h. Brief introduction to hspice simulation wojciech giziewicz 1 introduction this document is based on one written by ihsan djomehri, spring 1999. Hspice simulation and analysis user guide version y2006.
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. Awaves is a program that allows you to graphically plot the results of the hspice analysis. 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. Hspice simulation of d latch and double edge triggered flip. Although spice comes in many flavors you think thats a bad pun, keep reading, we strongly.
Multiple analyses and plots in spice2 emulation mode under 3f2 and earlier. Currently cntfets have been used for various applications in building vlsi circuits. The starhspice optimizing analog circuit simulator is a industrialgrade circuit analysis product for the simulation of electrical circuits in steadystate, transient, and frequency domains. A compact virtualsource model for carbon nanotube fieldeffect transistors in the sub10nm regimepart i. The cntfet model works for mosfet like cnfet device. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. If you have questions, read the section on workstation basics later in this handout. For more details on hspice input file format, please refer to the. However, there is very little literature discussing the procedures to use cntfet for developing vlsi circuits. Capnxxx for nodal capacitance output, hspice prints or plots the capacitance of the specified node nxxxx. This manual contains the reference material needed when working with special circuit analyses in pspice. Spice reads in a list of circuit nodes and the elements between. Modelling and characterization of cntfet using hspice currently cntfets have been used for various applications in building vlsi circuits.
Hspice simulation and analysis user guide version x2005. 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. Related documents the following documents pertain to. Its n structure albeit simple provides a behavior like. Input parameters for demonstration input value type 1 s 10 nm w 1. Im doing schematic and simulation of opamp circuit using synopsys hspice 90nm technology. 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. Carbon nanotube field effect transistor cntfet is an promising alternative of an conventional cmos technology in future. A compact virtualsource model for carbon nanotube field. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and. How to use this manual the manual is a work in progress.
A hspice model of carbon nanotube field effect transistor. Intrinsic elements chishuen lee, eric pop, senior member, ieee, aaron d. Results of the perfect design has been performed in 32nm technology and on comparison with a cmos technology based subtractor. Simulation results were carried out using hspice based on the cntfet model in 32 nanometer technology in different values of vdd at room temperature. 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. The procedure for opening an xwindow varies depending on the type of computer you are using.