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PCB WEST RECAP
Hot in the Valley
Something isn’t getting through, as signal integrity classes were packed even though most designers say they don’t perform the critical analysis.
by Mike Buetow


POPCORN PREVENTION
MSD Protection Steps Per J-STD-033B.1
ICs can act like a sponge. If they have semi-permeable membranes, moisture from the ambient air can get into those devices. When they get rapidly heated during reflow or rework, the result is rapid outgassing. In some cases, this excessive outgassing causes popcorning, which can damage the internal structures of a component. This how-to helps prevent and rid moisture from components.
by Don Shell

 

FIRST PERSON

• Caveat Lector
  Tough choices call for single voice.
  Mike Buetow

MONEY MATTERS

• Sherman’s Market
  OEMs: Still in charge.
  Randall Sherman

• ROI
  Our new stability.
  Peter Bigelow
  
  

TECH TALK

• On the Forefront
  Flex’s new twists.
  E. Jan Vardaman
  

• Defects Database
  Low solids, no coverage?
  Dr. Davide Di Maio
  

• Tech Tips
  BGA voids.
  ACI Technologies Inc.

• Process Doctor
  Lower-concentration cleaning agents.
  Dr. Harald Wack

• Technical Abstracts
  In Case You Missed It.