Process Sciences

Process Sciences, Inc. was founded as an independent analytical lab by Steve Stach & Stephen Schoppe in 1994. PSI has always been focused on supporting the electronics manufacturing industry with services that facilitate materials and process failure analysis. Initial customers included IBM, Motorola & Texas Instruments, all of which were engaged i... n high volume manufacturing of electronics. Supporting customers in a manufacturing environment included screening of incoming materials like solder paste, circuit boards, and components, qualification of new processes and products, and failure analysis of vendor or process related problems. As manufacturing became less of the focus for domestic electronics manufacturers, PSI's service offering has migrated toward failure analysis for vendor disputes and customer returns. Soon after starting the business, PSI customers began inquiring about services for reworking and reballing Ball Grid Array (BGA) components. PSI acquired a transmission X-ray machine to allow for inspection analysis of BGA's and pioneered processes for rework and reballing BGA's. Commercially available equipment for assembly rework processes was not capable of reworking BGA components on larger boards. PSI first adapted existing rework equipment with larger bottom-side preheaters to accommodate BGA rework challenges, eventually PSI partnered with a designer to develop a computer controlled BGA rework machine. Over the years PSI has adapted to rework challenges presented by shrinking geometries and increasing I/O. Today PSI routinely reworks BGA's with over 2,400 I/O and pitched down to 0.25mm.Read More