57 Threads found on edaboard.com: Sige Cmos
where can I get TSMC 0.25, 0.18, 0.13 and/or IBM sige design kits?
Linux Software :: 02.12.2003 10:35 :: cretu :: Replies: 3 :: Views: 1809
I am learning analog/rf design and need a BJT model and a cmos model to run my circuits under Spectre(RF). Something close to IBM's sige processes is even better. The models do not have to be accurate and realistic, as I am not designing chips at this time.
I know most (if not all) models and design kits are available from moses.com, but they ne
Analog IC Design and Layout :: 02.09.2004 13:54 :: DoctorX :: Replies: 1 :: Views: 1007
Can I make PA in TSMC 0.18 cmos? or I have to use a diffrent process? Like sige bicmos?
Analog IC Design and Layout :: 22.09.2004 12:46 :: dd2001 :: Replies: 9 :: Views: 1627
How can I acquire sige's design kit?
RF, Microwave, Antennas and Optics :: 13.10.2004 04:01 :: rfic :: Replies: 11 :: Views: 3139
You're right yolande_yj
from the designer point of view there is no much difference using conventional bipolar or sige (it's only the addition of Germanium in the base, to incease performances). For futher details you can download: Wiley sige Heterojunctio Bipolar Transistors - Ashbum available on this forum
RF, Microwave, Antennas and Optics :: 12.03.2005 02:59 :: Mazz :: Replies: 9 :: Views: 1010
hello i need information on linearity vs. feedback tradeoffs in mixer and LNA design and NOT power amplifier design.
(si bjt, sige, cmos)
RF, Microwave, Antennas and Optics :: 10.04.2005 16:58 :: Puppet1 :: Replies: 1 :: Views: 537
The future is in cmos!
If it's true that some companies are having troubles with pure cmos, it's also true that the RF is always driven by baseband capabilities.
Now we are in a phase where Bicmos (mostly 0.35,0.25 and sige) is the must if you want product today. I am designing using it.
The future (the open question is (...)
Analog IC Design and Layout :: 02.06.2005 05:31 :: Mazz :: Replies: 12 :: Views: 3142
cmos process is cheaper comparable with others (GaAs, sige, etc). A cmos PA can meet in some limits the same performances with competitors.
Nobody wants to make a cmos PA with poor performance. Just cheaper.
RF, Microwave, Antennas and Optics :: 06.10.2005 02:55 :: vfone :: Replies: 9 :: Views: 1352
What type of receiver do you want to use? (Low IF, Zero IF ,...)
What technolody do you want to use? (integrated: cmos, Bicmos, bipolar,GaAs, sige or discrete....)
Digital communication :: 13.04.2006 16:30 :: drabos :: Replies: 4 :: Views: 1997
sige is a Bicmos technology. So, you have the option to use bipolar transistors ( vertical bipolar transistors ). Usually, these BJT's have a much higher fT ( maybe an order of magnitude higher )than the cmos transistors so they can be used for higher frequencies.
I don't think there is a special consideration. You just have the option to (...)
Analog IC Design and Layout :: 02.04.2006 10:58 :: elbadry :: Replies: 3 :: Views: 521
sige has lower flicker noise contribution to close-in phase noise.
RF, Microwave, Antennas and Optics :: 10.04.2006 06:43 :: vfone :: Replies: 3 :: Views: 810
I have designed a 1.8 dB NF LNA for WLAN 2.4-2.5 GHz in 0.18 um Si cmos. The measured NF was around 2.6 dB (indirect measurement).
Some sige process based LNA (MAXIM) for 2.4 GHz may have lower NF but thats a trade-off.
Analog IC Design and Layout :: 17.04.2006 00:43 :: maddy :: Replies: 7 :: Views: 1147
If you compare 3 (4) terminal devices the product of current gainbandwidth and the breakdown voltage is important.
For MOS devices you get about 70-100GHz*V. sige Bipolar is about 2*3 times higher. GaAs a further factor of 1-1.5.
MOS have the additional disadvantage that the above speed is only true if the saturation voltage is very high. Tha
RF, Microwave, Antennas and Optics :: 18.05.2006 03:45 :: rfsystem :: Replies: 2 :: Views: 989
hello i need references (books, papers, thesis) on integrated mmic/rfic transformers for gaas/cmos/sige.
RF, Microwave, Antennas and Optics :: 11.09.2006 01:54 :: Puppet1 :: Replies: 0 :: Views: 672
the emiter degeneration inductor in sige will make the noise matching more easily , it will increase the input impedance of LNA , and by this u can adjust the Roptimum to get the NFmin of the transistor
about Q , if u increase the Q the series R of of the L will be min , so the gain of the LNA will increase , but also be aware that inductor dege
RF, Microwave, Antennas and Optics :: 26.10.2006 12:13 :: khouly :: Replies: 1 :: Views: 648
Looking for information on sige Bicmos and cmos 60GHz Radio Building Blocks and Systems at the circuit, system and device levels.
Please send any information !
Analog IC Design and Layout :: 21.12.2006 06:09 :: Puppet1 :: Replies: 3 :: Views: 780
What're the difference between Bicmos and sige? Are they identical?
Analog Circuit Design :: 31.12.2006 18:26 :: mesfet :: Replies: 15 :: Views: 2433
What do you think which the best book (or article, tutorial...) is in the field of sige RFIC design?
RF, Microwave, Antennas and Optics :: 19.12.2007 15:17 :: drabos :: Replies: 4 :: Views: 730
Any technology, sige, cmos, pHEMT ...
Frequency > 500MHz, any frequency range
Vdd <= 5V
Idd <= 10mA
Gain >= 15dB
NF <= 1dB
Input IP3 > 10dBm <-- must have
Return loss (in, out) < -10dB
Data sheet, application note, paper ... are welcome
basically I am looking for a low power high linearity LNA. I am wondering
RF, Microwave, Antennas and Optics :: 06.09.2008 19:18 :: cmosbjt :: Replies: 3 :: Views: 1088
Why is the work function approach necessary for Vt adjustment in scaled technologies?
What is a FUSI process?
How does nitrogen and other doping schemes help in adjusting the work function?
What are midgap metals?
What are the issues with midgap metals in the Vt adjustment of n-MOS and p-MOS, poly sige gates,
future directions of this researc
Analog Circuit Design :: 29.03.2011 10:45 :: anandrathi13 :: Replies: 0 :: Views: 614
At mm-wave you have few plain-cmos options and
the ones you do have, are very low voltage. Stacking
costs you geometrically in area and adds losses. A
sige device would help.
GaN and GaAs suffer from not having the ability to
do logic or power management, well. If your "application"
wants to be single-chip-does-all, and "all" is any kind
RF, Microwave, Antennas and Optics :: 14.11.2012 19:24 :: dick_freebird :: Replies: 4 :: Views: 433
bastos & lcg22,
I made a gm-c filter 4 years ago, 5th order, with highest BW 500MHz, for hard drive read channel. It's in .25u cmos.
To operating over 1GHz, you'd better use <=.18u cmos, or if you like, try sige. I don't see any reason why it can't.
I would like to recommend:
Y. Tsividis for a complete treatment of this topic (...)
RF, Microwave, Antennas and Optics :: 23.03.2003 15:20 :: xshou :: Replies: 3 :: Views: 1447
I am defining the specifications for a new RF IC. What is the procedure that I should follow?
1) Define all the functions ( Direct down conversion or two stage down conversion, ADC, LNA (NF, gain,... ) Digital Functions) and then the architecture and process
2) Fix the process (cmos, sige,...) and architecture and see what functi
RF, Microwave, Antennas and Optics :: 01.07.2003 00:04 :: brmadhukar :: Replies: 1 :: Views: 972
I think the definition of mmic and rfic are getting blurred now. FT of HBT is improving continously, there are already some papers about 60GHz transceiver using sige process from IBM or Jazz.
RF, Microwave, Antennas and Optics :: 01.05.2004 20:14 :: mesfet :: Replies: 6 :: Views: 1878
I need some clarification on the terms of fT (frequency transition) & fmax (maximum frequency). As we know that ft means the value when current gain of the device (BJT/cmos) is unity whereby fmax means the value when power gain is unity. So, when i do sige design, from the design manual i could see that fmax is about 47Ghz. Is this
Analog Circuit Design :: 05.10.2004 22:54 :: suria3 :: Replies: 6 :: Views: 3245
Bicmos: yes Bipolar + cmos and for RF applications mainly "sige" bipolar + cmos
RFcmos: cmos + additional process step to avoid Hot carrier injections (reliability issues) + several metalization steps for inductors.
please refer to these article :
Analog IC Design and Layout :: 29.11.2004 04:38 :: dini :: Replies: 5 :: Views: 861
Right now, the chip market is down.
In MMIC, LMDS and MMDS both went nowhere. Auto Collision Radar has been in the works for years. They are working on 60GHz cmos and sige Wireless LANs.
Is this all necessary ? What COMMERCIAL applications will drive both RFIC and MMIC design in the future ? Which technology will win out ? sige ? (...)
RF, Microwave, Antennas and Optics :: 10.01.2005 16:32 :: Puppet1 :: Replies: 5 :: Views: 1370
I will allow myself to strongly disagree that the bicmos processes have scrappy bjts. I'm currently working with 0.35u sige bicmos and have to tell you that we have both vertical npn and pnp with about 40Ghz Ft for the npn.
Also, bjts we use almost everywhere on par with the cmos. Many times they prove to be very useful.
Analog IC Design and Layout :: 13.01.2005 19:53 :: sutapanaki :: Replies: 10 :: Views: 1971
Don't know about TI but know that bipolar is alive and kicking!
Look at any sige technology and you'll find its bipolar.
I do not believe it will die - actually they were saying this for last 10-15 yrs.
But number people who know how to design with it is going down....
Analog Circuit Design :: 07.02.2005 14:51 :: Teddy :: Replies: 6 :: Views: 1032
we have (Silicon)cmos, sige, GaAS and Inp for design of Integrated frequency from DC to higher than 100GHz . these are just commercial processes.
we use cmos and sige for RFIC and GaAS and Inp for MMIC currently.
AS the cmos chanel length become smaller and smaller the frequency operation of (...)
RF, Microwave, Antennas and Optics :: 10.05.2005 23:17 :: mreza1355 :: Replies: 2 :: Views: 525
also are you using cmos or sige bipolar?
Analog IC Design and Layout :: 29.05.2005 18:53 :: Puppet1 :: Replies: 13 :: Views: 1592
Is it hard to move from GaAs Power Amplifier / Front End Module Design to RF IC Design in Silicon (cmos, sige) if you have the right course work (RFIC Design, cmos Analog Design).
Any tips or suggestions?
Many friends of mine want to make this transition.
Analog IC Design and Layout :: 03.06.2005 11:06 :: Puppet1 :: Replies: 3 :: Views: 814
recently rfic meant silicon while mmic meant anything but silicon (gaas and so on)
if you are rf, probably silicon, microwave probably gaas.
but today with sige hbt and rf cmos line is blurry.
RF, Microwave, Antennas and Optics :: 18.11.2005 17:16 :: Puppet1 :: Replies: 6 :: Views: 3151
I think austriamocrosystems foundry provides the 0.35 bicmos & sige bicmos
For MPW you can go through MOSIS,
Analog IC Design and Layout :: 21.02.2006 00:36 :: sunny153 :: Replies: 10 :: Views: 926
4) how to compensate the gain variation for the
temperture , process voltage variation? I design the
sige LNA before and use PTAT/Bandgap combine current,
how about the cmos, should I use constant-gm, or PTAT
or combine both?
5) about the bulk connection, because in my project,
there is no trple-well device, so should I use
seperate pin fo
Analog Circuit Design :: 07.04.2006 13:11 :: lijulia :: Replies: 0 :: Views: 608
Analog Circuit Design :: 22.06.2006 18:20 :: Teddy :: Replies: 82 :: Views: 3400
I am in the starting phase of investigating wich technology (cmos, SOI, sige e.t.c) and circuit architecture (pipeline, Flash, Folding Interpolating, Sigma-delta) will be suitable to implement a low-power, broadband ADC, with the following specs:
Sampling rate : from 0.1-1.5 Gsps
Analogue Input Bandwitdht : 2.5GHz
Number of bits : 10
Analog IC Design and Layout :: 08.06.2006 10:52 :: moisiad :: Replies: 7 :: Views: 1256
In sige and GaAs technology 'gm' and 'ft' is higher than the cmos question is.....what are the advantages having higher 'gm' and higher 'ft'?
Analog IC Design and Layout :: 13.06.2006 17:08 :: MK28 :: Replies: 2 :: Views: 601
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Analog IC Design and Layout :: 09.08.2006 06:13 :: flushrat :: Replies: 1 :: Views: 1580
It depends on what kind of technology you will choose. Here are two reference papers who are both wideband LNAs for UWB, and one of them are cmos and the other sige Bicmos.
1. Ismail A,Abidi A.A 3 to 10GHz LNA using a wideband LC-ladder matching network.In:
2.Bevilacqua A,Niknejad ultra-wideband cmos LNA (...)
Analog Circuit Design :: 12.11.2006 08:29 :: carpa :: Replies: 3 :: Views: 912
I would like to know why sige process is expensive compared to cmos process? In what way they are different which make the price of fabrication to differentiate between them. Thanks.
Analog IC Design and Layout :: 17.01.2007 03:20 :: Anachip :: Replies: 1 :: Views: 623
Title: Circuit Design for RF Transceivers
Author: Domine M.W. Leenaerts
Publication Date: 2001-10-01
Number Of Pages: 344
Average Amazon Rating: 3.0
Table of Contents
Circuit Design for RF Transceivers covers key building blocks which are needed to make an integrated transceiver for wireless and ce
RF, Microwave, Antennas and Optics :: 13.02.2007 05:00 :: amaysa :: Replies: 0 :: Views: 1160
sige RfF LNA
RF, Microwave, Antennas and Optics :: 01.03.2007 08:44 :: mohandes79 :: Replies: 4 :: Views: 848
which process you are interested GaAs HBT, HEMT or sige or cmos!!!
RF, Microwave, Antennas and Optics :: 07.11.2007 05:51 :: ADS_RFMW :: Replies: 5 :: Views: 1800
For PA in WCDMA applications, which process is more preferrd, cmos, sige HBT or GaAs?
What are the today trend for modulation schemes and spec for WCDMA?
Any link that enable me to do my finding?
RF, Microwave, Antennas and Optics :: 02.09.2007 13:17 :: J0hn :: Replies: 3 :: Views: 665
Can you clear up some thing.
Are you talking about Process/technology: MOS, cmos, Bicmos, sige....
Or BJT's vs. FET's ?
Are you assuming highest frequency to be amplified is your merit of Speed,
(Frequency response of the device "S21")
How fast the device can transition from a Low to High state is your merit of speed?
Electronic Elementary Questions :: 05.12.2007 16:10 :: Element_115 :: Replies: 56 :: Views: 12470
What is the future of RFIC Design in cmos/sige ?
WLAN has slowed, WiMax is not taking off.
What is left-even cellular has slowed.
Any hope ?
Please give advice !
EDA Jobs :: 18.04.2008 14:09 :: Puppet1 :: Replies: 6 :: Views: 1066
analog, mixed signal processes feature some more devices, than a digital process. In some technologies are different in substrate doping also (for example 0.18um cmos technology usually have two type, one with high resistive and the other with low resistive substrate) and other differences can be also... RF technologies are usually sige (...)
Analog IC Design and Layout :: 21.05.2008 16:02 :: drabos :: Replies: 6 :: Views: 1603
most of this range are GaAs and sige
but there are research efforts on UCB and many placesto make 60 GHz cmos
RF, Microwave, Antennas and Optics :: 02.07.2008 07:21 :: khouly :: Replies: 17 :: Views: 1034
yxo, thank you for your reply.
I know we use the tested SNDR in the definition of the ENOB of the AD. That's why I presented this question.
Added after 5 minutes:
《A bipolar 2-GSample s track-and-hold amplifier(THA) in 0.35um sige technology》
this paper presented the exact formula I mentione
Analog Circuit Design :: 17.11.2008 08:37 :: pikky :: Replies: 4 :: Views: 822