Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Choice of transistor in 22nm FDSOI technology for 60GHz LNA

Status
Not open for further replies.

immadi.jagadish

Member level 5
Joined
Dec 19, 2010
Messages
89
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
1,820
Hi,I am currently working on a project for LNA design at 60GHz.I would like to know how to choose a transistor that fits to this design for best performance.There are many type of transistor models are given in 22-nm FDSOI process.
 

At these technology nodes (and below), it's better to ask your foundry.
You will get both technically correct (to specific technology) and legally safe advice.
 

The relevant transistors are probably designated "RF"
somehow. Probably fixed geometry (use N to get
the impedance / current), gates contacted at
both ends, stubby fingers, etc. I'd expect that
you'll end up with a 0-VT (aka native, intrinsic)
for conductance / channel current density and
noise reasons.

There would certainly be some design manual type
documentation riding with the PDK that shows you
attributes, cautions and such. For that matter you
can probably find papers based on whatever your
foundry*flow is, in RF conference and trade pubs,
that show you what other people have achieved and
how. Try Google Scholar and then figure out how to
find free copies of what's behind the pay-walls that
dominate search results. If you don't have a
university library with IEEEXplore access for free.
 

From my limited exposure to this, RF transistor p-cells are occupying such a huge area (guard rings and such), that designers abandon them and use standard devices, even for RF designs (I am talking about advanced nodes, 16nm and below).
Of course, different companies and different designs may require different approach...
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top