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Sierra Circuits
Sierra Proto Express is an ISO-9001:2000 and MilSpec MIL-P-55110 certified, Silicon Valley based, high technology printed circuit board manufacturer. We specialize in quick turn prototypes 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.
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Sierra Circuits
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