Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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.

Register Log in

Network Analyzer Calibration with Temperature

Status
Not open for further replies.

mhma

Junior Member level 2
Joined
Oct 23, 2008
Messages
20
Helped
7
Reputation
14
Reaction score
6
Trophy points
1,283
Activity points
1,394
Hi,

Let say that I am doing S-parameter measurement on chip with several temperature point (-40C, 25C, 125C). Does the calibration need to be done only once at 25 or i need to recalibrate when I change the chuck temperature?. Thanks
 

biff44

Advanced Member level 5
Joined
Dec 24, 2004
Messages
4,831
Helped
1,354
Reputation
2,704
Reaction score
1,031
Trophy points
1,393
Location
New England, USA
Activity points
36,482
obviously things change as the temperature change. But if you can insure that good contact is maintained over temperature, then the cal at 25 deg c is probably sufficient unless you are looking at very minute changes (like phase shift).

Probably a bigger thing to worry about is condensation on the chip when it goes cold. You would like to bathe the chip in N2, or some other inert gas, to keep water vapor from forming frost on the IC (which would cause a big circuit change).
 
  • Like
Reactions: mhma

    mhma

    points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top