PCB Assembly Services

Printed Circuit Boards (PCBs) is used in almost every second instrument used today. The boom in technological advancement is the reason behind this. However, there is no one size fits all approach here. Different applications demand differently assembled circuit boards. The printed circuit boards may function as expected, if the are assembled by experts, who have a good understanding of PCB manufacturing. You can find a number of manufacturers in the US, who will help you get PCBs assembled based on your requirements. Sierra Assembly Technology, Inc.stands tall among all the manufacturers, with their vast experience in the field. We not only assemble PCBs, but also do a thorough testing of the assembled boards.

PCB Assembly Capabilities of Sierra Assembly

We can provide you PCB assembly service with the following capabilities:
Lead Time 1 - 5 Days, 1 - 2 Weeks and Scheduled Deliveries
Parts Procurement Full Turnkey, Partial Turnkey and Kitted/Consigned
Assmebly Types Surface Mount (SMT), Thru-hole, Mixed Technology (SMT/Thru-hole),Single and double sided SMT/PTH , Large parts on both sides, BGA on both sides
Stencils Laser cut stainless steel and Nano-coating
Components Passive components smallest size 0201,Fine pitch components smallest size 8 Mils pitch, Leadless chip carriers/ BGA, VFBGA,  FPGA & DFN, Connectors and terminals
Component packaging Reels, Cut tape, Tube and Loose parts
Inspection X-ray analysis, AOI and Microscope to 20X
Solder Type Leaded and Lead-free/RoHS compliant
Certifications ITAR Certified, IPC-WHMA-A-620, ISO 13485, ISO 9001:2015+ AS9100D, IPC-CC-830B Compliant, SBA certified, J-STD-001 in house Certified Trainer

Other PCB Assembly Capabilities

Besides those mentioned above, here are our few more PCB assembly capabilities:
  • Mechanical Assembly
  • Electromechanical Assembly
  • Repair/Rework Services

Testing & Inspection Capabilities

We not only help you assemble PCBs, but also provide testing as a part of our assembly service. This helps us ensures that the assembled circuit board is free from any defects. Here are our testing capabilities:
  1. X-ray Testing: This testing is commonly performed on Quad-flat No-lead (QFN) PCBs, and Ball Grid Arrays (BGAs).
  2. Visual Inspection: As the name implies, visual inspection involves a general quality check of the circuit board.
  3. Functional Testing: In this, we check the functionality of the PCB, and ensure whether the performance is according to the expectations.
  4. Automated Optical Inspection (AOI): We perform the automated optical inspection to check whether any components are missing. The solder paste, polarity, and 0201 components are also checked in this inspection.
  5. In-Circuit Testing (ICT): In-circuit testing is done to check whether there are any shorts, or opens in the circuit. Besides this, it also checks the capacitance, resistance, and other quantities to ensure that the PCB assembly is done right.
Are you looking for a manufacturer, who can help you assemble high-quality printed circuit boards for your application? You have arrived at the right place. Sierra Assembly Technology, Inc. has a team of expert engineers, and knowledgeable staff, which understands the exact requirements of the customers in less time, thanks to their vast experience. We have a well-equipped facility, which helps us manufacture only the best, and high-quality printed circuit board assemblies. Would you like to know more about our PCB assembly services? Get in touch with us at the earliest. You can also request a quote if you have any specific requirements.

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