PhotoProtoProPCB1_800Our ProtoPlus Service is a low cost choice for double-sided PCBs that include the solder mask and silkscreen layers. These are the same professional quality 2-layer boards as our Production Service, but at a fixed price and quantity. They are shipped in just 2 business days.


ProtoPlus boards have top and bottom copper layers with a tin/lead solder plating over the pads. They include top and bottom solder mask layers giving the boards a green color. On the top surface and bottom surface is a white silkscreen layer showing the component outlines. The solder mask layers give the boards a very professional appearance.

ProtoPlus designs must fit in a 21 sq-in rectangle and no dimension can exceed 12″.


  • 2 Layer – Price based on size and Qty. 2,3,5 Day Build
  • New – Quantity up to 10
  • New – Optional Build Time
  • New – Top and Bottom Silkscreen and Solder Mask
  • New – Expanded Holes Size Options
  • New – Silver (RoHS) or Tin/lead Plating
  • Board size must be 21 sqr-inches or smaller
  • Perimeter routed to shape
  • Orders submitted Monday through Friday by 2:00pm ET are shipped in 2 business days.
  • Paying for your boards is easy by MasterCard, Visa or American Express.

Manufacturing Specifications


 Proto Plus
QuantityUp to 10
Layers2 Layer
Lead Time2 Days
Maximum Board SizeThe board size must fit in a rectangle that is 21 square inches or smaller, and the longest dimension can not exceed 12 inches.
Minimum Board SizeMinimum dimension in height or width is 0.35 inches.Total board area must be greater than 0.4 square-inches. (i.e. smallest square board we can make is 0.64 x 0.64 inches)
Panelize Muliple BoardsMultiple circuits can be pasted together on a single board, but we do not cut them apart. The perimeter of a board cannot include long slots as they can cause manufacturing problems. We are not responsible for any defects that are a result of routing multiple circuits on a single board.
Minimum Trace and SpaceEtching resolution is: 0.006″ minimum trace width, 0.006″ minimum space width.
Inner LayersNo Inner Layers
Solder MaskTop and Bottom
Silk ScreenTop and Bottom
Surface FinishTin\Lead or Silver
Solder Mask Pad TolerancePads on the solder mask layers are grown by 0.003″ on all sides. As a result, very fine pitch surface mount components may not include any solder mask between the pins.
MaterialOur 2 layer laminate is .059" FR-4 epoxy glass which includes .0007" copper on each side (industry standard 1/2 ounce copper base). We plate an additional .001" copper on the surface after drilling and imaging, resulting in a copper thickness on the surface of ~0.0017″.
Dielectric ConstantThe dielectric constant of our FR-4 laminate ranges from 4.2 to 5.0.
Plated HolesBoards are manufactured double-sided with all holes plated-through.
HolesMinimum 0.008″ - Max 0.251″. Hole sizes in between as specified in software.
Hole ToleranceThese sizes are the finished hole diameters after plating. The 0.014″ hole may be filled with solder and can only be used as via. The tolerance for the 0.020″ hole is +0.003 / -0.005. The tolerance for the other hole sizes are +/- 0.004″.
Hole Location ToleranceOur hole location tolerance is +/- 0.005”. As such, the tolerance between two holes would be +/- 0.010”.
Minimum Hole DistanceA minimum of 0.021″ space must remain between adjacent holes. For example, the center-to-center distance between two pads with 0.020″ holes must be 0.041″ or greater.
Internal Slots and CutoutsNone
Perimeter SlotsBoard perimeters are cut to shape using a 0.093″ router bit. Slots in the perimeter must be 0.100″ or wider. Narrower slots will not be milled correctly.
Perimeter RoutingThe edges of the board are cut with an accuracy of +/- 0.015″. A minimum of 0.020″ blank space is recommended between the perimeter and all features on the board. Traces placed closer than 0.015″ to the board’s edge may be routed off.
TemperatureThe maximum operating temperature is 125 degrees C.