hi jian...Reg. Low-kDielectrics...

hi all,

I have a doubt reg. low-k dielectric materilas........
What does 'k' indicates in 'low-k'?.....whether k-stands for dielectric constant or wave number......

Please anyone clarify my doubt......

with regards
venkatmani

Hi, venkatmani:

I don't have much study on it. I think low-k means "Low dielectric K(c)onstant".

Regards.

Yes, low-k dielectrics refers to the relative permittivity (epsR, dielectric constant) of the material being relatively low compared to most microwave circuit materials.

http://en.wikipedia.org/wiki/Low-K

Cuming sells low-k dielectrics (syntactic foams) which have dielectic constant values below 2.0:

http://www.cumingmw.com/pdf/210-Diel...CK%20LOW-K.pdf

another good link

http://www.rohmax.com/en/performance...cell/produkte_

pl

people in different field use different terminology/symbol. ε for em engineers means the same thing as k for material engineers.