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Barebones PCB

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Only supports a few types. Maximum file size: 500 MB

Product Description

Barebones PCBs are ideal prototype boards. 

Barebone PCB (Prototype PCB)

They are our most basic printed circuit boards available and are great for testing out your designs without spending a ton of money. These prototype boards are best for using with a hot soldering iron and lots of solder!

These prototype boards come with FR-4 fiberglass (the all-natural yellow color), copper traces, and plated holes with just a little bit of tin over the copper.

When calculating the price, select one size larger than your required board dimensions.

Interested in a stencil to help with parts assembly? Check out our desktop stencil option here.

Not finding what you're looking for? We'll generate a custom quote for you. Click here to get started!

Manufacturing Specifications

Quantity Customer Specified. Larger quantities are quoted here.
Layers 2 (or 1, if desired)
Lead Time 1 Business Day. To learn more about how lead time is calculated, read this.
Maximum Board Size Up to 50 square inches per board (for this specific offer). Maximum board dimension is 22.5 inches (maximum manufacturing capability).
Minimum Board Size Minimum dimension in height or width is 1 inch. Total board area must be greater than 1 square inch (i.e. smallest square board allowed is 1 x 1 inches).
Minimum Trace and Space Etching resolution is 0.005” minimum trace width, 0.005” minimum space width.
Inner Layers N/A. There are no inner layers for this product.
Soldermask None
Silkscreen None
Surface Finish Tin (over 1Oz Cu). Learn more about Surface Finishes.
Soldermask Pad Tolerance N/A
Material Dielectric material is FR-4 with a glass transition temperature of 135 degrees Celsius. However, if a RoHS compliant surface finish is selected, then FR-4 with a glass transition temperature of 180 degrees Celsius will be used. Outer layers begin with 0.5 ounces of copper, then during through hole plating, up to 1 ounce of copper may be added to the outer layers. Thus, the total outer layer copper is between 0.0017" and 0.0021". If the board is 1 layer or does not have plated through holes, then the outer layer copper may be as low as 0.0014”, since less plating is required. The total board thickness will be 0.062".
Dielectric Constant The dielectric spacing 0.057” with a dielectric constant of 4.58 +/-0.2.
Annular Ring Minimum annular ring must be at 0.005” or greater.  Calculate annular ring by subtracting the diameter of the via hole from the diameter of the via pad and dividing by two.
Plated Holes Boards are manufactured with 2 (or 1) copper layers. All holes with copper pads on the top and bottom are plated through, while holes without a copper pad on the top or bottom layer are non-plated. Holes with a copper pad on one outer layer but not on the other are not accepted.
Hole Sizes & Quantity All hole sizes between and including 0.010” and 0.247” are available, up to tolerance. Limit number of holes to less than 50 per square inch.
Hole Tolerance These sizes are the finished hole diameters after plating. Holes 0.014” or smaller may be filled with solder and can only be used as via. The tolerance of 0.015” to 0.020” holes is +0.003 / -0.005. The tolerance for the other hole sizes are +/-0.003”.
Hole Location Tolerance Hole location tolerance is +/-0.003”.
Minimum Hole Distance The distance between plated holes of different nets is dictated by annular rings and trace/space. Plated holes of the same net and non-plated holes should be at least 0.005” apart.
Internal Slots and Cutouts Not Allowed.
Perimeter Slots Board perimeters are cut to shape using a 0.078” router bit. Slots in the perimeter must be 0.100” or wider. Narrower slots may not be cut correctly.
Perimeter Routing The edges of the board are cut with an accuracy of +/-0.010”. A minimum of 0.020” blank space is recommended between the perimeter and all features on the board. Copper features, vias, and any other design element placed closer than 0.010” to the board’s edge may be routed off.
Temperature All boards can survive standard reflow, while RoHS compliant boards are able to survive RoHS reflow. The maximum operating temperature is 125 degrees C.
Electrical Test Not Available.
Other Arrays (Tab Rout, Breakaway Tabs, Mouse Bites, etc), Beveled Edges, Blind/Buried Vias, Castellated Edges, Countersinks/Counterbores, Controlled Impedance, Edge Plating, and Scoring are NOT available with this product option. When required, please request a custom quote here.

Additional Resources

Design Rules Our standard design rules and standards assist PCB Designers with configuring basic design rule checks. Available Here
DFM Report Upload your PCB design files and receive an instant Design for Manufacturability (DFM) report. Our free, automated tool identifies possible production issues prior to manufacturing. Available Here
PCB Design Software PCB Creator is a free, easy-to-use PCB design software allowing for the design of 2 and 4 layer PCBs. Available Here
Online Tools We offer a variety of free online tools to assist you in the PCB design and manufacturing process including an Array Calculator, a Panelizer Tool, Material Library, Surface Finish Chart & More. Available Here
Blog Follow our Blog for helpful posts on PCB design. Available Here
Help Center Questions? Check our Help Center for self-service answers to common questions, or Submit a Request and we’ll be glad to help out! Available Here

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Product Reviews

Previous | Showing reviews 6-10 of 40 | Next

  1. Quick turn, with some shorts 3 Star Review

    Posted by on 14th Jul 2018

    The boards were ready in time, documentation was complete but some of the boards had incomplete etching so the through hole 0.05" header was just a big short. Took a few hours to debug, then selected the good ones. This is a great service for quick prototyping but do a quick check under the scope before you use the boards.

    [BAC Response] Because barebones PCBs don't include soldermask or electrical testing there's always potential for opens/shorts to exist. Thus, the quick turnaround makes them great for prototyping but doesn't provide the same level of quality or confidence as some of the other available options which include soldermask and electrical testing. In any case, if you ever experience a quality issue be sure to contact us for assistance and we'll be glad to resolve it.

  2. Completely satisfied 5 Star Review

    Posted by on 17th May 2018

    After seeing all these 5 star reviews I was wondering if the bad reviews were being culled. Based on the boards I just received I am adding another 5 star review. Most of my signal traces were 6 mil with 6 mil spacing. All the traces came out sharp and clean. Beautiful work! I submitted the job on Wednesday and UPS delivered the boards three days later. And instead of the 12 boards I ordered I receive 16 boards! To be able to get a three day turn on 2 inch by 4 inch board costing less than $10 each is AWESOME!

    The tin finish takes solder beautifully. While the description talks of using a soldering iron and lots of solder, I'm using solder paste and a manual pick and place machine.

    Joshua was able to intervene in the work flow after I discovered an error some hours after submission. I sent him a new file and he made the substitution without the hassle of cancelling and resubmission.

    I'll be back, for sure!

  3. Fast turn around with good price 5 Star Review

    Posted by on 20th Mar 2018

    First time I ordered a prototype, the board showed up the next day with some nice extras!

  4. Nice fast service 5 Star Review

    Posted by on 2nd Feb 2018

    This was my first board using Eagle so I was a bit nervous but everything went well with the order using the instructions provided by BAC. I was also happy to find more boards than ordered! Thank you!

    I know you won't do this but as a hint, there is no silk screen available on this it seems. I spaced this out so if I do the barebones again, the "silk screen" will be done as a copper layer.

  5. Very Satisfied 5 Star Review

    Posted by on 18th Jul 2017

    Thank you so much for an amazing product! It was everything I could have asked for. The quality is as was hoped for and the turnaround was quick. The design for manufacturability tool was very nice. Highly recommend this product and this company.

Previous | Showing reviews 6-10 of 40 | Next