Bare Board Printed Circuit Boards

A bare board PCB (printed circuit boards) and the bare board testing play critical roles in PCB creation. Bare board, is the PCB before the electric components or through holes are placed on it. A bare board printed circuit boards are comprising of:

  • Substrate
  • Metal Coating
  • Conductive Pathways

Through a bare board layout, you could determine the placement of the components. In addition, the bare board testing can go a long way in ensuring that what you have is a reliable product.

At Technotronix, we can configure PCB bare boards as per your specifications while also offering effective bare PCB testing capabilities. Technotronix is a leading bare board provider in California, United States. We can manufacture configurations of bare circuit boards based on your custom specification.

Our bare printed circuit boards also assist you in penalization, place your PCB on large boards, mounting and plating process. We understand the complexity of PCB bare board manufacturing. Our goal is to provide best product which can fit your needs and best customer service.

Capabilities of Bare Circuit Boards

Technotronix Inc is known for its ability to offer high quality PCB bare boards. Our capabilities include designing bare boards to your bespoke needs to that they can support the components that you require.

In addition, our bare board (PCB) also help you in panelization as well as placing your Printed circuit board to larger boards.

Features Capability
Maximum Board Layers Up to 12 layers
Bare Board Types Single Sided PCB, Double Sided PCB, Multilayer PCB, Rigid PCB, Flex PCB, Rigid-Flex PCB
Board thickness (multilayer board) Maximum:0.13" (any layers); Minimum: 0.025" (4 layer)
Board thickness (1- or 2-layer board) 0.02", 0.031”, 0.039”, 0.047”, 0.062”, 0.078”, 0.094”, 0.118", 0.125"
Tolerance of board thickness +/- 10%
Base materials FR-4, FR-406 (Tg 150 deg C), FR-408 (Tg 170 deg C), G10, CEM3, Rogers, Alumina Ceramic
Copper weight and minimum trace width/space required 0.5 oz (min. trace width/space 4 mil), 1 oz (min. trace width/space 5 mil),
2 oz (min. trace width/space 7 mil), 4 oz (min. trace width/space 12 mil), 6 oz (min. trace width/space 20 mil), 8 oz (min. trace width/space 40 mil)
Minimum conductor width and space 0.003" (0.075 mm) for conductors including trace and annular ring
Minimum finished hole size 0.006" (0.15mm).
Silkscreen/Legend colors white, yellow, black, pink, red
Solder Mask (LPI) Colors: Green, Black, Red, Blue, Purple, Yellow, Silver, Gold
Maximum hole aspect ratio 10:01
Surface plating Tin/Lead HASL, immersion gold (soft gold), electrolytic gold (hard gold), immersion tin, immersion silver, OSP
Blind/buried vias Yes
Bare Board Testing Isolation Testing: This means verifying that the required resistance between two separate electrical connections is met.
Continuity Testing: Which involves verifying there are no open points within the circuit.

Benefits of PCB Bare Board

Bare Circuit Boards come with a number of advantages including:

  • Saving on Costs - This stand to reason since you are undertaking extensive testing in the initial stages of the design. What you do not have to contend with, therefore are Bare printed circuit boards that are wrongly assembled, which can turn out to be a very costly mistake.
  • Saving on time - Once again, since you are identifying issues in the early stages, you don’t tend to lose out on precious time. This can be a huge source of competitive advantage, since this could mean quick time-to-market.
  • Easy Resolution - With bare board testing it will be easy to identify and resolve issues early on.
  • Reliability - The most important advantage of bare board testing is the reliability that it offers. At a time of miniaturization, boards are extremely densely populated. It is, therefore, important to ensure that your bare board (PCB) is up to soldering the expensive components on it.
  • Our bare board testing is done via the Flying Probe Method that works well even for small production volumes and offers affordability as well as flexibility.

Application of Bare Boards (Printed Circuit Boards)

  • High quality PCBs find applications across industries from consumer electronics to industrial applications, medical devices, automotive application & more.
  • Bare board PCB testing also finds ubiquitous use as it can improve the PCB design process.
  • It is extremely helpful in early stages of development as it streamlines many aspects of production, besides leading to savings in cost & time.
  • With Printed circuit boards, being smaller and densely populated, its importance is only slated to grow as it is getting more and more challenging to keep track of the traces, vias, through holes and more.
  • With bare boards, you tend to save time and money on costly errors, repairs and maintenance.

technotronix advantage for pcb bare board manufacturing

At Technotronix, we have over 4 decades of experience in fabricating as well as assembling high quality bare PCB boards. Not only do we offer high quality bare circuit boards, our team of experts is fully equipped with the requisite knowledge and industry best practices to assemble highly complex bare boards.

Whether your requirement is rigid, flex or rigid flex bare board (PCB), we have you covered. From single side to multi layered boards, you can count on us for their high quality. We also have a wide range of materials available to match your bespoke needs. Our specialty also lies in catering to RoHS compliant bare circuit boards.

The big advantage that we offer is in terms of our quick turnaround times that ensures that you do not have to wait for days for us to fulfill your requirements.

The fact that we are an ISO 9001:2015, ISO 13485:2016 & AS9100 Rev. D Certified PCB Assembly company & AS9100 Rev D gives our clients confidence in our adherence to quality standards.

Irrespective of what your volume requirements are, we have the right solutions. From requirements for printed circuit board prototypes to large production runs, we have you fully covered.

All you need to do is to share your exact requirements with our team and we will get back to you with a competitive, custom quote.

Bare Board PCB FAQs

A bare board is the Printed circuit board before the electric components or through holes are placed on it. A bare board comprises of:
  • Substrate
  • Metal Coating
  • Conductive Pathways

Absolutely! From single side to multi-layered boards, we have you covered.

We cater to a maximum board size of 25” X 17”.

We cater to the following materials for Bare PCBs:
FR-4, FR-406 (Tg 150 deg C), FR-408(Tg 170 deg C), G10, CEM3, Rogers, alumina ceramic.

Bare Board Testing is a test that ensures the working of the circuit of your PCB by testing it to the electrical footprint of your design.

Yes, we offer isolation and continuity testing through the Flying Probe method.

Totally. Share your requirements with us and see us quickly fulfill them.

Yes, we offer turnkey services that offer you complete peace of mind.

It offers cost saving, saving on time and above all the reliability that you need in your boards.

Totally, with miniaturization being the order of the day, its importance will only increase.

Yes, absolutely.
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Are you Looking for bare board printed circuit boards, PCB bare board manufacturing, bare PCB boards for your next project? You can use bare board PCB Assembly quote request form or bare board PCB Fabrication quote request form and submit information. In case you need bare board PCB fabrication and bare board PCB assembly both, please submit both forms separately. Alternatively, you can email us BOM and Gerber files on or call us on 714/630-9200 in case any other clarification is required in respect to our bare board PCB services.


PCB Assembled in 24 hours

Best Turn around time for Prototype PCB assembly.
Kitted and Turn-Key option as per customers requirement.


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