Testing & Inspection

At Sierra Assembly, we understand that customers require their circuit board assemblies to be durable. The performance of a circuit board can only be long-lasting when regular maintenance, repair, and rework is performed. We at Sierra Assembly provide end-to-end testing and inspection services to support the assemblies we provide to our clients.

PCB Assembly Testing and Inspection at Sierra Assembly

We perform testing and inspection procedures early on during the assembly process. This allows us to detect defects early on, and ensure a finished high quality product. What sets us apart from other PCB assembly service providers is that we employ multiple testing and inspection procedures to ensure that the quality of our PCB assemblies is of the highest level. By ensuring thorough inspection, we can reduce the number of rework sessions. However, we also provide rework services for clients who wish to modify their current PCBs.

Testing and Inspection Capabilities

Our testing and inspection equipment are suitable for simple as well as complex PCB assembly requirements. We can take on extremely demanding projects, and ensure high quality product yield. Given below are our testing and inspection equipment and capabilities:
ICT – In Circuit Testing
  • GenRad 2283 & GenRad 2280S:
    • Bed of nails with fixture
    • Open express equipped & Boundary Scan capable
X-Ray System
  • Glen Brook RTX-113
  • Vision Systems
  • Scienscope:
    • 19ʺ camera system
  • Microscopes
  • Mantis
  • Clear view
  • Vision Engineering
  • Inspection Microscope
  • Tektronix 7704A Oscilloscope
  • Bandit APE Rework Station for QFP & BGA components
  • Sony color 65 power inspection camera with color monitor
Mechanical Assembly / Wire Harness
  • Carpenter Model 70D wire stripper
  • Cirrus 1100 H+ Hi Pot Cable Tester
  • Ideal Industries Model 45-145 Wire strip
  • Pico crimping Tools Model 400B crimp master
  • Ideal Industries Model 45-754 Measure, cut, & strip
If you have any queries about our PCB assembly and testing processes, feel free to contact us. You can call us at 909.355.5400 , or send an email at sales@sierraassembly.com .

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