Our ProtoPro 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.
ProtoPro 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 is a white silkscreen layer showing the component outlines. The solder mask layers give the boards a very professional appearance.
ProtoPro designs must fit in a 21 sq-in rectangle and no dimension can exceed 12″.
- ProtoPro orders have a fixed price of $166 (plus shipping).
- With each order, we send you 4 identical boards.
- 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.
|Lead Time||2 Days|
|Maximum Board Size||The 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 Size||Minimum 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 Boards||Multiple 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 Space||Etching resolution is: 0.006″ minimum trace width, 0.006″ minimum space width.|
|Inner Layers||No Inner Layers|
|Solder Mask||Top and Bottom|
|Solder Mask Pad Tolerance||Pads 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.|
|Material||Our 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 Constant||The dielectric constant of our FR-4 laminate ranges from 4.2 to 5.0.|
|Plated Holes||Boards are manufactured double-sided with all holes plated-through.|
|Holes||Twenty-three hole sizes are available: 0.014″, 0.020″, 0.025″, 0.029″, 0.033″, 0.035″, 0.040″, 0.043″, 0.046″, 0.052″, 0.061″, 0.067″, 0.079″, 0.088″, 0.093″, 0.100″, 0.110″, 0.125″, 0.141″, 0.150″, 0.167″, 0.192″, 0.251″. Hole sizes other than those listed are not offered.|
|Hole Tolerance||These 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 Tolerance||Our hole location tolerance is +/- 0.005”. As such, the tolerance between two holes would be +/- 0.010”.|
|Minimum Hole Distance||A 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 Cutouts||None|
|Perimeter Slots||Board 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 Routing||The 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.|
|Temperature||The maximum operating temperature is 125 degrees C.|