USE LICENSEES

Sierra Circuits Inc

1108 West Evelyn Avenue Sunnyvale, CA 94086
Toll free: 800-763-7503 | Phone: 408-735-7137 | Fax: 408-735-1408
www.protoexpress.com

Sierra’s owner Ken Bahl was the visionary that saw the value in eSurface and executed the first license agreement. Sierra Circuits is an ISO 9001:2008, ISO 13485:2003 and MilSpec MIL-P-55110 certified, Silicon Valley-based, high-technology Printed Circuit Boards manufacturer. They specialize in quick turn PCBs and medium production. Unlike some PCB companies that are simply brokers/middlemen, they are the actual manufacturer of our PCBs. By owning their manufacturing facilities (in California and Kansas), they control every aspect of the production schedule and quality. They continuously update their capabilities and equipment, like sophisticated direct imaging machines, enabling them to do reliable and repeatable 4 / 4 with an aspect ratio of 10. We make up to 22 layers on a .185-inch thick board. Their high technology boards have features like Blind/buried vias, filled vias (hole in pads), controlled impedance, high aspect ratios and micro-BGAs. They regularly make specialty products like Lead-free boards, Burn-in Boards, Polyimide multi-layers, Thermount multi-layers, Metal Core PCBs, carbon paste, and boards with blind/buried vias, filled vias and micro vias. Our latest offerings include Microelectronics PCBs, down to sub 1 Mil trace & space.