Re: [SI-LIST] : Modeling Package parasitics
D. C. Sessions (email@example.com)
Mon, 16 Feb 1998 17:37:28 -0700
Mike Jenkins wrote:
> D. C. Sessions wrote:
> > Bondwires are actually very good inductors. The package itself
> > may be a PWB in implementation (consider BGAs). A good figure
> > for bondwire inductance is 40uH/in.
> > D. C. Sessions
> > firstname.lastname@example.org
> They're not THAT GOOD! Maybe 25-30 nanoHenries per inch, not
> 40 microHenries per inch. (I am sure you meant nH, but I didn't
> want to let any reader run off with a 1000x error in hand. :) )
I bow to no one in my ability to screw up publicly.
Would you believe one microhenry per 40 inches? (Note
that this is very close to your number). A mere displaced
decimal wouldn't be sufficiently stupid; I had to get
things TOTALLY hosed.
Thanks for the prompt correction.
D. C. Sessions