Our Facility
  • 20,000 square feet
  • Air-conditioned and humidity-controlled in a static-free environment
  • Component and finished goods inventory warehouse storage
  • Separate prototype area with both manual and semi-automated assembly capabilities
  • One plated-thru-hole line
  • One surface mount technology lines
  • Optical inspection, X-ray and rework stations in a designated inspection and finishing area
  • Fixture, fixtureless in-circuit, and functional test areas
  • Cable assembly area
  • Automated coating and bonding (underfill) area
  • Electrostatic discharge-safe shipping, receiving and inspection areas

Quick Contact


I approached Sierra after being referred to them from another PCB designer. What impressed me was that they were more than willing to take a complex PCB requirement. The PCB assembly they provided was small, lightweight, but provided the amount of power needed for our computer product. Great experience.

- Susan R – Business Computer Industry

I liked Sierra’s quick turn PCB assembly services. They provided a prototype within a few days, and it worked without a hitch. I was extremely satisfied with the quality of the PCB. Their prices are great too.

- Jason G. – Telecom Industry

Sierra Assembly Technology has a great group of people to work with. They are open to almost any request and always get the job done quickly. I’ve been in some tight spots before and needed certain products within a small time window, and Sierra has always been reliable.”

- Richard S. – LED Lighting Manufacturer

Your Partner in Southern California for Circuit Board Assembly Services GET A QUOTE

Sierra Assembly Technology Inc.

10880 Mulberry Ave

Fontana, CA 92337

Phone: 909.355.5400

Email: sales@sierraassembly.com