Repair Services

  • Component Level Repair Including µBGA and Fine Pitch
  • Functional, ICT Test, and X-Ray Inspection
  • Board Level Troubleshooting

Inspection and Testing

  • AOI Inspection
  • X-Ray Inspection
  • ICT Capability

Box Builds

  • Custom Metal Integration
  • Custom Plastic Integration
  • Full Testing Capabilities

High Tech Proto and Production

  • 2 Fully Automated SMT Lines
  • ±0.04mm Placement accuracy
  • 0.235 sec/Placement
  • 0201 Capable

PCB Assembly from Prototype to Production

As a contractual manufacturer of high-tech electronic assemblies, Sierra Assembly provides a full range of design, engineering, and manufacturing services.

Why Sierra Assembly?

We are experts of our craft, and our craft is assembling circuit boards. No matter the requested specifications of a circuit board project, Sierra Assembly will quickly begin building a product of the best quality. Whether it’s a double-sided PCB assembly requiring mixed SMT and through-hole technology, or a basic single-sided circuit board assembly, we take pride in our team’s ability to get superb products to our customers on time.


Contact Us

Your Circuit Board Assembly Services Partner in Southern California

We are an ISO 9001:2008 registered company and an IPC-A-610-D compliant company. Please look at our full list of  Certifications.

  • Stable – We have been a full-service electronic manufacturing service provider for over 20 years.
  • Secure – We are financially sound with profitable, managed growth and no debt.
  • State of the Art – Our equipment and assembly, inspection & test processes are state of the art and enable the most aggressive designs and demanding specifications.
  • Skilled – We are experts in circuit board assembly technology.