Front-End Semiconductor: When a Wipe Must Not Contain Sulfur
In a wafer fab, a wipe is a material that can corrode aluminium, dope a surface or outgas into a process chamber. The particle count is…
Cut, Sealed or Laser: Choosing a Wiper Edge
The edge is the cheapest visible difference between two wipes and the most expensive invisible one. It decides what sheds, what scratches…
Static Is a Contamination Problem Before It Is an ESD Problem
A charged surface pulls particles out of the air and holds them there. Long before a board is damaged, the room is dirtier than the…