Test and Inspection
Evaluating ROI of AXI vs. AOI
A model for calculating savings from reduced DPMO against equipment investment costs clearly demonstrates that the economic benefits of either technology depend upon the board complexity, throughput, labor costs, cost of field failures and returns, and equipment performance, as well as capital equipment, programming and operating costs.
Prototype vs. Production Outsourcing
When outsourcing PCBs, OEM procurement staff must fully understand the differences and nuances associated with prototype and production manufacturing, regardless of where those services are situated.
Pb-Free Hot Air Leveled Solder Coatings
A series of tests from wetting balance to copper dissolution show that the most popular Pb-free pastes work better with HAL versus other common finishes.
Howard Stevens and Nimal Liyanage, Ph.D.
Simulating Pb-Free Reflow
Computational fluid dynamics simulation of the reflow oven makes it possible to design PCBs for Pb-free manufacturing by predicting thermal gradients during solder reflow processing.
Sherman Ikemoto and Robin Bornoff
The Dover Deals
'Confusion and Clarity'
As a new owner – Francisco Partners – enters the scene, what's in store for Universal, Vitronics and Unovis?
The downside of higher stocks.
TXP's Eric Miscoll.
Focus on Business
Dr. Jonathan Linton
Printer customization considerations.
When Lean goes too far.
To flip, or not to flip?
American Competitiveness Institute
Configurations for soldering conveyor angles.
Assembléon's "A" series of placement machines.
On the cover: Predicting thermal gradients during reflow. (Photo courtesy Flomerics)