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. We specialize in quick turn PCBs and medium production. Unlike some PCB companies that are simply brokers/middlemen, we are the actual manufacturer of our PCBs. By owning our manufacturing facilities (in California and Kansas), we control every aspect of the production schedule and quality. And this is why we can provide our customers unprecedented quality, reliability and a single point of support.
Burn-In Boards are boards that are used in the process of electrically stressing a device at an elevated
temperature, for a sufficient amount of time to cause the failure of marginal devices (Infant Mortality).
The main thrust of the RoHS requirement is that 6 hazardous substances
may not exceed strict limits set by these directives. These substances
are lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl
and polybrominated biphenyl ethers. These substances are limited to
1000 parts per million (0.1%) with the exception of cadmium which is
restricted to 100 parts per million (0.01%). For the printed circuit
board industry the restrictions on lead and polybrominates (used as
flame retardants in plastics, i.e. epoxy resins) are far reaching.
Sierra Proto Express is qualified by the USA Department of Defense to
MIL- PRF-55110F for GF (FR4) and GI (Polyimide) Printed Circuit Boards.
Sierra Proto Express has an extended history of manufacturing High
Rel printed circuit boards to MIL-PRF-55110 F. We have in-house
capability to provide Group A testing that is required
for Mil-Spec PCB boards.
Sierra Circuits, Inc. has been a leading manufacturer of PCBs for over 25 years. We also provide PCB Assembly Services, so our customers can get the one-stop convenience and single point of support for both PCB Manufacturing and Assembly.
Our new promotion, Web PCBs, is the fastest and most convenient way for you to get PCBs online. On your Web PCB orders, our CAM Engineers personally verify your design for manufacturability (DFM), so you get Sierra's famous quality and quick turn times--all at low prices. And we provide NRE/Tooling for free. Keep that in mind as you compare our prices to anyone.