Re: [SI-LIST] : Of thermal reliefs and signal integrity....

Hans Mellberg (
Wed, 13 Oct 1999 15:36:39 -0700 (PDT)

I have eliminated the thermals (spokes) on all designs
I have consulted on or designed. For non-leaded
through holes they are simply not needed. Not only do
you get better SI but lower EMI. Anyone telling you
that thermals are required (for non-leaded through
holes) is simply behind the times.

Best Regards
Hans Mellberg
EMC Consultant
Do You Yahoo!?
Bid and sell for free at

**** To unsubscribe from si-list: send e-mail to In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at ****