Bay Area Circuits Inc.
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Sierra Circuits, Inc.
🇺🇸 United States
1986501-1000 peopleManufacturer/Service Company/WholesalerHigh capacity factory
Established brand
OEM manufacturer
Product customization
Shipments
818
Key customer
BHARAT ELECTRONIC
Key market
🇮🇳 India
Description
Sierra Circuits, Inc. is a premier American manufacturer and assembler of high-technology printed circuit boards (PCBs), headquartered in Sunnyvale, California. Founded in 1986, the company operates a 70,000 sq. ft. manufacturing campus and is recognized as a minority- and woman-owned business. Sierra Circuits specializes in end-to-end solutions, including PCB fabrication, assembly, and component sourcing, with a strong emphasis on 100% Made in USA production and fast-turnaround prototypes.
The company's extensive product portfolio features Rigid, Flex, Rigid-Flex, and High-Density Interconnect (HDI) PCBs, as well as specialized solutions for Microelectronics, RF & Microwave, and Aerospace & Defense applications. Their capabilities range from quick-turn Turnkey PRO services, which can deliver fully assembled boards in as little as five days, to complex advanced PCBs supporting up to 30 layers with blind and buried vias. They utilize sophisticated manufacturing processes such as laser direct imaging, laser drilling, and flying probe testing to ensure high reliability.
Sierra Circuits maintains rigorous quality standards, holding certifications including ISO 9001:2015, ISO 13485:2016 for medical devices, AS9100D for aerospace, and MIL-PRF-31032. They are also ITAR registered and NIST certified, serving high-profile clients across the automotive, healthcare, and defense sectors, including NASA, Boeing, and Lockheed Martin. With a workforce of over 500 employees, the company integrates advanced proprietary design tools and engineering support to assist clients from initial layout through mass production.
RF / MW PCB Manufacturing and Assembly
HDI PCBs
Rigid PCBs
Controlled Impedance
Online PCB Manufacturing
Microelectronics PCBs
Rigid PCBs
Turnkey PRO
Microelectronics PCBs
PCB Assembly
PCB Mass Production
HDI PCBs
EMSolutions, Inc.
🇺🇸 United States
200811-50 peopleManufacturer/Service CompanyOEM manufacturer
Product customization
Description
EMSolutions, Inc. is a professional electronic manufacturing services (EMS) provider and contract manufacturer headquartered in Fremont, California, with additional operations in San Jose. Established in 2008 and drawing on over 25 years of industry experience, the company specializes in high-quality Printed Circuit Board Assembly (PCBA) and comprehensive system integration. EMSolutions operates a dedicated manufacturing facility focused on delivering quick-turn prototype builds, New Product Introduction (NPI), and small to medium volume production runs. Their core technical capabilities include Surface Mount Technology (SMT), complex BGA and QFN assembly, and PCB fabrication involving diverse materials and layer counts. The company offers both full turnkey and consignment material management, supported by robust supply chain logistics and component sourcing. To ensure high reliability, they implement rigorous quality control measures, including Automated Optical Inspection (AOI), 100% X-ray inspection for complex components, and functional electrical testing. EMSolutions is ISO 9001:2015 and ISO 13485 certified, RoHS compliant, and ITAR registered, allowing them to serve demanding sectors such as Medical, Networking, Semiconductor, Communications, and Consumer Electronics. Their service suite is further enhanced by engineering support, including Design for Manufacturability (DFM) feedback and layout optimization.
PCB Assembly
