Custom Search
Over 9,000 pages indexed!
Your Host
Click here to read about RF CafeKirt
Blattenberger
... single-handedly
redefining what an
engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5CCG (5th MOB):
My USAF radar shop

Hobby & Fun

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding business website - lots of info

Doggy Dynasty:
My son-in-law's dog training business
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<
Job Board
About RF Cafe©
RF Cafe E-Mail
Product & Service
Directory		 Engineering
Jobs
Personally Selected
Manufacturers		 Employers Only
(no recruiters)

Arrhenius Lifetime Acceleration of an Integrated Circuit

The Arrhenius equation predicts failure acceleration rate due to temperature increase. Although originally developed to describe chemical reactions due to temperature, it applies equally well to electronic assembly failure rates. The Arrhenius activation energy, ΔH, is all that is needed to calculate temperature-related acceleration.

Swedish chemist Svante Arrhenius provided a physical justification and interpretation for his observation back in 1899. His equation can be used to model the temperature-variance of diffusion coefficients, population of crystal vacancies, creep rates, and many other thermally-induced processes/reactions. A useful generalization borne out by the Arrhenius equation is that for many common chemical reactions at room temperature, the reaction rate doubles for every 10 °C increase in temperature.



Arrhenius Model for Integrated Circuits
 
F = x1
x2 		= eα {Lifetime Acceleration Factor}
Where: x1 = Failure rate at junction temperature T1
x2 = Failure rate at junction temperature T2
T = Junction temperature in degrees K
ΔH = Thermal activation energy in eV
k = Boltzmann's constant
Arrhenius Model for Integrated Circuits

RF Cafe Software

RF Cascade Workbook
 RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

Smith Chart™ for Excel
Smith Chart™ for Visio
RF & EE Symbols Word
RF Stencils for Visio
A Disruptive Web Presence™

Custom Search
Over 9,000 pages indexed!
 Read About RF Cafe
Webmaster: Kirt Blattenberger
KB3UON

Product & Service Directory
Personally Selected Manufacturers

 RF Cafe T-Shirts & Mugs
Calculator Workbook
RF Workbench
Please Support My Advertisers