Bsim cmg hspice manual pdf

However, you will need to explicitly command hspice to generate the extra. I would like to measure the power consumption of a circuit, such as an inverter. A compact model serves as a link between process technology and circuit design. Pdf bsim spice models enable finfet and utb ic designs. Technical manual of bsimcmg bsimcmg technical manual. Bsim cmg has been developed to model the electrical characteristics of common mg cmg structures all gates are electrically tied together. We would like to show you a description here but the site wont allow us.

Bsim cmg and bsimimg have been validated with hardware siliconbased data from multiple technologies. You have to explicitly tell hspice to generate the extra. Original versions of bsim models were written in the c. Measurement and extraction of bsim4 model parameters. Cadences spectre, synopsys hspice, ltcs ltspice free and without limitations, mentors eldo, silvacos smartspice, and winspice all generate the same simulation output.

Physics and modeling of finfet and utbsoi mosfets using bsimmg as example. Gui support in the simulation and analysis environment sae for modified distribution. How to measure power consumption with hspice using bsimcmg model. Source code ip violation a twostep tmi purify check mechanism developed and deployed in tsmc for tmi production releases. Similarly to the nmos device, in a pmos transistor, hspice models for nlev 1, 2 or 3 underestimate 1f noise and provide an inaccurate description of pmos flicker noise performance in all operating regions. Shorter channel lengths require the use of the bsim2 or bsim3 model. This is an attempt to write a working bsim cmg model in python. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and modify circuit designs. Hspice simulation and analysis user guide version x2005. X mosfet flicker noise models have been analytically described and examined. The star hspice level mosfet model is an adaptation of bsim berkeley short channel igfet from spice 2g.

From the results, we can conclude that quadruple gate is better option in terms of delay, average power and current compare to trigate and double gate finfet. To invoke the subthreshold region, set the model parameter n0 low field weak inversion gate drive coefficient to less than 200. When i was an engineer in tsmc, each time when i wanted to know more about certain model parameters, i found it cumbersome to download the model. If you have questions, read the section on workstation basics later in this handout. Bsim cmg model veriloga is available to use bsim cmg. Fsdb, psfascii, spiceascii, ascii, etc full spice analysis features.

Besides my regular job of maintaining and debugging bsim models in collaboration with cmc, i started several projects that are interesting to me and i think it might be useful to others if i share online technical manual for bsim models. Add or modify model and instance parameters in modelcard. Awaves is a program that allows you to graphically plot the results of the analysis that hspice did. Hspice tutorial university of california, berkeley.

Several frequently used hspice models are available. Bsim cmg model results after each key parameter extraction step are presented. The starhspice level mosfet model is an adaptation of bsim berkeley short channel igfet from spice 2g. Bsim cmg common multigate, bsimimg independent multigate, the only model published without sourcecode whose publication is foreseen for june 20 2020 bsimsoi silicononinsulator, bsimbulk, formerly bsim6, bsim4, used for 0. Finesim is wellsuited for simulation of large, complex analog circuits, as well as dramsram. In contrast to the function of this button, youll find a help button on each folders lower left corner, too, which will open a short help document describing the task to be performed using this page. Bsim3v3 is the latest industrystandard mosfet model for deepsubmicron digital and analog circuit designs from the bsim group at the university of california at berkeley. You can compare the results with commercial simulators like hspice. How to use this manual the manual is a work in progress.

Bsimcmg is shown to accurately model devices with channel lengths. Help using the pspice simulation examples from is found here. Nov 10, 2017 simulation is done using hspice and bsim cmg finfet model. Related documents the following documents pertain to. Bsim cmg model evaluation runs 50% faster than the 20. The bsimmg model is implemented in smartspice as bsim cmg level105 berkeley release june 2011 version 105. For more details on hspice input file format, please refer to the. The online version is more accessible to the users. With over 500,000 copies distributed so far, many users have reported. The node collapsing scheme is selected by combination of the. Here, we will discuss, how to determine threshold voltage. Here, we will discuss, how to determine threshold voltage, transconductance.

How to measure power consumption with hspice using bsim. Bsim cmg model customcmi mosfet, bjt, diode, resistor, capacitor tmi. Supports hspice and spectre netlist formats supports standard output formats for data analysis. Finfet modeling for ic simulation and design 1st edition. Finesims unique multicoremultimachine simulation capability allows users to drastically improve simulation performance and capacity. Every six months synopsys introduces a new feature release of hspice. The ptm finfet model is available to download at here. Effective oxide thickness, channel length and channel width bsim4v4. Bsim cmg is the most widely used industrystandard compact model for finfet and other ultrascaled devices such.

Finesim is a highperformance circuit simulator with builtin full spice and fastspice simulation engines. The model is formulated on the device physics of smallgeometry mos transistors. 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. The procedure for opening an xwindow varies depending on the type of computer you are using. Technical manual of bsim cmg this document is the technical manual of bsim cmg 110. Bsim family of compact device models 1990 20101995 2000 2005 bsim1 2bsim1,2 bsim3 bsim4 bulk mosfet bsim5 bsim6 new bsimsoi silicon on insulator mosfet bsim mg multigate mosfet bsim. Chapter 4 presents cv modeling and focuses on the charge thickness model. A separate model, the bsimimg, has been developed to model the independent mg img structure, but it is not yet officially released why bsim cmg model 2. The bsim spice model mosfet field effect transistor. This chapter describes the physics behind the bsim cmg berkeley shortchannel igfet model common multigate compact models for multigate mosfets. Hspice elements and device models manual version x2005.

Xuemei jane xi, mohan dunga, jin he, weidong liu, kanyu m. Bsimcmg model results after each key parameter extraction step are presented. In this thesis we develop a comprehensive compact spice model for a cg mosfet. The present implementation of the project addresses mosfet and finfet devices, making reference to ngspice simulator 12 with bsim4 device model 10 22 and hspice simulator with bsim cmg.

Chapter 3 highlights a singleequation iv model for all operating regimes. Levels through 39 lists and describes three of the earliest bsimtype mosfet models supported by hspice. The developers would like to thank keith green, tom vrotsos, britt brooks and doug weiser at ti, joe watts and richard q williams at ibm, yutai chia, kewei su, chungkai chung, ym sheu and jawkang. Enhanced diode model dc equations with hspice bsim3. Berkeley bsim cmg release history 10 date release version modifications 2006.

Nanospice is a new generation highcapacity, highperformance parallel spice simulator, designed for the toughest simulation jobs, such as large postlayout analog circuit simulations that require capacity, speed and accuracy simultaneously. The next button in the top row help opens up the online manual the file you are viewing right now. Unfortunately, the pspice implementation of the bsim4 mosfet model used in many of the books examples is inaccurate and the simulations often dont converge. Lg is provided in the bsim cmg manual 7, but no extracting method for different fin widths wfin is given.

At the same time, circuit designers are beginning to design and evaluate multi gate cmos circuits. The developed models also meet the stringent quality assurance tests expected of production. Karim, pankaj thakur, navid paydavosi, ali niknejad and chenming hu bsim group university of california, berkeley march 16, 2012 mosak workshop, delhi. Before running hspice, users should execute the command source usrclassee dot. Awaves is a program that allows you to graphically plot the results of the hspice analysis. Op, dc, ac, noise, tran, info, sweep, alter, monte carlo, pvt, tran noise, etc supports veriloga and behavioral sources supports vec and vcd stimulus files supports spef backannotation supports ibis model, sparameter and. Bsimcmg model evaluation runs 50 % faster than the 20. Model parameter builder users manual, accelicon now agilent. Bsim berkeley shortchannel igfet model refers to a family of mosfet transistor models for integrated circuit design. Chapter 2 discusses the physical basis used to derive the iv model.

Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and. Bsim cmg is shown to accurately model devices with channel lengths varying from 10. It also refers to the bsim group located in the department of electrical engineering and computer sciences eecs at the university of. By changing gate geometry and substrate, results are carried out. By ajay kumar gautam p08ec901 svnit, surat the berkeley short channel igfet model, bsim, is a spice model for both n and pchannel mos transistors. Advancing compact spice models for ic design uc berkeley eecs. Hspice based on our previously proposed general compact. Industry standard compact model various device structures technology bulk and soi channel materials. 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. Bsimspice models enable finfet and utb ic designs utb transistors, and transistors with nonclassical operat ing modes including tunnel.