For a definition of terms and more information (underlined text),
check out our PCB Glossary
Accepted "PCBpro.com" file formats: Gerber with Excellon
Drill file, or Ivex '*.brd' file. All files should be sent in a
zip-format. A readme file is recommended.
Information highlighted in BLUE
should be in the board layout design to ensure a working board.
| Category |
Description |
PCBpro Capability |
Files
|
Gerber files - preferred format |
274-X ( embedded apertures ) |
| Gerber files - acceptable format |
274-D, with one aperture list |
| Gerber files - extra cost possible |
274-D, with multiple aperture lists |
| Excellon Drill file |
X & Y coordinates, with tool sizes included. |
| Ivex " *.brd " file |
Gerbers generated, Customer approval required |
Material
|
Bow and twist |
0.0075" |
| Dielectric spacing |
0.005" min |
| Starting Thickness |
within +/- 0.007" |
| Layer Registration |
Layer to layer |
within .010" ( +/- .005" each layer) |
| Copper
Plating |
Finished hole size |
within +/- .004" |
| Minimum in holes |
0.0008" |
| Minimum on surface |
0.0008" |
| Inner layers |
Minimum Clearances |
Hole size + .025" |
| Minimum back set |
Copper .025" from cut line |
| Minimum Pad size |
Hole size + .018" |
| Minimum spacing |
0.006" |
| Outer layer |
Minimum back set |
Copper .010" from cut line |
| Minimum Pad size |
Hole size + .018" |
| Minimum spacing |
0.006" |
| Minimum via pad |
0.020" |
| Multi
Layers |
1-4 layers |
0.031",.062",.093", &.125" Thickness |
| 1,1.5, & 2.5oz Finished Copper Weight |
| 5-8 layers (Design Check only) |
0.062",.093", &.125" Thickness |
| 1,1.5, & 2.5oz Finished Copper Weight |
| Traces
|
Finished Trace Size |
Within 20% of artwork |
| Trace size .006"-.009" |
1 oz, Finished Copper Weight |
| Trace size .010"-.013" |
1, & 1.5oz, Finished Copper Weight |
| Trace size > .013" |
1,1.5, & 2.5oz Finished Copper Weight |
| Solder Finish |
Hot Air Leveling ( used with Soldermask) |
0.0001"- .0015" |
| Reflow ( used without Soldermask) |
|
| Solder filled holes |
< .026" HAL, .020" Reflow may fill shut |
| Soldermask
|
Mask registration tolerance |
Within +/- .005" |
| Nominal thickness |
0.0004" |
| Mask film clearance |
Pad size + Smallest board spacing. |
| Silkscreen |
Marking / text |
+/- .010" registration |
| Min. .007" line required for legibility |
| Electrical
Testing |
Continuity |
10-50 ohm (50 ohm std.) |
| Isolation |
10-100 Mohm (10 Mohm std.) |
| Voltage |
10-250V (100 V std.) |
| Minimum SMT pitch |
0.020" |
| Drilling |
Sizes from .010" - .016" ( .010 our min.) |
0.031", &.062", Thickness |
| Sizes from .017" - .019" |
0.031",.062", & .093" Thickness |
| Sizes > .019" |
0.031",.062",.093", &.125" Thickness |
| True position |
Within .005" |
| Board
Routing |
Tolerance Board Edge & Cutouts |
Within +/- .010" |
| Maximum Board Size |
14" X 18" |
| Minimum Board Size |
0.25" X .25" |
| Tab
Routing |
Space between boards |
0.1", You send a One up image, we do the rest. |
| Boarder around Pallet |
0.5" |
| Number of tabs per board |
4 |
| Overall panel size (view sample) |
Varies with board size, approx. 12" X 14" |
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