Rigid PCB Default Specifications

We don't need much information to manufacture a bare printed circuit board. Often, all we receive are the digital Gerber files showing the copper layers, solder mask, silk screen and a drill file. When we are given no other information, we'll assume the following industry standard specifications. Of course, we'd rather not make assumptions.

Printed Circuit Board Fabrication Drawing/Fab Print

Example Fabrication Drawing

Example Readme.txt File

Even if these specifications are what you expect, always a good idea to list your requirements in a fabrication drawing so there's no mistake or confusion. You don't have to make a fancy fabrication drawing. A simple readme.txt file works just as well. We can accept just about any standard format for your fabrication notes. Other fab print file types we can use are:

.TXT .JPG
.PDF .PNG
.DXF .XLS
.DWG .XLSX
.DOC .PPT
.DOCX  

Rigid PCB Default Specifications

Finished Board Thickness 0.062" (1.6mm)
Material Type RoHS Compliant 135°Tg FR4
Final Plating Finish Lead Free Solder (HASL)
Copper Weight (Thickness) 1oz / 0.00137" / 1.37mil /0.035mm - All Layers
Solder Mask Color Green – Both sides of the board
Silk Screen Color White – Applied to sides where silk screen files are provided
Build and Inspection Class II / IPC-600A / IPC-6012 latest revisions
ITAR Not ITAR Compliant
UL Markings No UL or other markings will be applied unless requested
RoHS Compliant Yes
REACH Compliant Yes

Viewing Files

A few tips regarding how your files will be interpreted unless we are given other information.

  1. Industry standard is to view your files as seen from the top side of the board. This is to ensure all features such as holes are aligned correctly when building your design. When viewing this way, any text printed on the bottom side of the board will appear backwards since we are viewing it from the top side looking though the board… just like Superman with X-ray vision!
  2. Since lines of varying widths can be used to draw outlines, the CENTER of the line used to draw any board outline, cutout or slot will be used as the true edge of that feature.
  3. It's always a good idea to add some overall dimensions to your Gerber or fab print information. This is a good reality check to ensure your file imported into our software correctly and we are seeing it at the intended scale.