Our Certifications

Certificate AS9100 PCB Assembly Services
Certificate ISO-13485 PCB Assembly
Certificate ITAR PCB Assembly Services
ISOS 9001:2015 Compliant Circuit Board Assembly Services

PCB Assembly Services

From prototyping to production to repair, Sierra Assembly Technology, Inc.
provides a broad range of printed circuit board assembly and manufacturing services.

Why Sierra Assembly?

We are experts of our craft, and our craft is assembling printed circuit boards.

We at Sierra Assembly are a small business at heart, which caters to the needs of large organizations. We have the versatility to accommodate a variety of PCB assembly requirements. Our 30+ years of knowledge and experience are supported by a 20,000 sq. ft. facility, one Thru-hole (PTH) and two Surface Mount (SMT ) assembly lines, and the latest in design, prototyping, NPI, assembly, and testing equipment. We cater to various industries, providing our printed circuit board assembly services for customers in defense, healthcare, Government, and entertainment. We look forward to taking on challenging projects, which can help us enhance our skills and capabilities, and exceed the expectations of clients.


PCB Assembly Highlights


  •  Single or Double Sided Placement
  •  Surface Mount (SMT)
  •  Thru-hole
  •  Mixed Technology (SMT/Thru-hole)


  •  Quickturn (1-5 days)
  •  Standard (10 days)
  •  Scheduled Deliveries


  •  No Minimun Order Quantity
  •  Prototype - Production


  •  Passives, smallest size 0201
  •  Fine pitch to 08 Mils
  •  Leadless chip carriers/ BGA, VFBGA, FPGA & DFN
  •  Connectors and terminals

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