NOISE CONTROL
Voltage Drops across Traces and Vias
With today’s low impedance circuits, voltage drops may introduce an unacceptable amount of noise or signal level uncertainty into a circuit, leading some designers to avoid the use of vias on boards altogether. How to predict the
voltage drop across a trace, and why the voltage drop across a via is almost negligible by comparison.
by Douglas Brooks, Ph.D., Norocel Codreanu, Ph.D., and Dr. Johannes Adam
IPC APEX RECAP
Reinvigorated in San Diego
The annual IPC trade show captured a brighter industry mood, with plenty of activity for assemblers and – for a change – fabricators.
by Mike Buetow
CAVEAT LECTOR
America, don’t hold your breath for Foxconn.
Mike Buetow
ROI
When to buy.
Peter Bigelow