[SI-LIST] : Some Semiconductors are Unnecessarily Fast

Roy Leventhal (Roy_Leventhal@mw.3com.com)
Mon, 12 Jul 1999 15:21:53 -0500

Several recent threads have commented that few nets on a board used to be a
signal integrity challenge in the past and now almost all are.

What we are seeing are a number of instances where the semiconductor companies
are producing parts with edge rates way faster than the clock and application
calls for. Parts with 500ps rise times or less and clock periods of 100ns or
more. SI engineers are seeing more demand for their skills what with shrinking
geometries and lack of (care? concern?) edge rate control on drivers.

But, this is "make work" and is not the road to world class competitiveness for
our companies. There are enough real world signal integrity problems for us to
tackle without any "help" of this sort from the semiconductor manufactures.

Roy Leventhal

**** To unsubscribe from si-list: send e-mail to majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****