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In order to work efficiently, we have set the following guidelines to streamline the submission process:
UP REVS: If you are submitting new files for a part number revision, DO NOT USE THE SAME ZIP FILE NAME for the new files. If you do so, there is a chance the wrong files may be utilized. Please use a different name or incorporate the revision in the new file name.
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ALL FILES ARE ZIPPED UP INTO A FILE CALLED "YOURPARTNUMBER.ZIP"
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The zipped file requires the following files:
- Gerber Files (We prefer one file per layer) in English units, NOT METRIC.
- Fabrication Data (Gerber file, HPGL Format) at least one whole dimension to edge of board
- Aperture File (for each layer, if necessary)
- CNC Drill File (format EXCELLON. We prefer 2.4 trailing format)
- "Read.Me" File (ASCII text information file)*
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*The Read.Me Needs to contain the following text information:
- A list of every file name, and describe what it is
- Anything else you need to tell us to complete your order including quantity, turn-time, dimensions, basic specs and contact information
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SOME DESIGN PACKAGES PRODUCE INFORMATION THAT CAN BE MISCONSTRUED. TO HELP AVOID MANUFACTURING MISHAPS, CONSIDER THE FOLLOWING:
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- We will view the files from the "Component" side looking down, through the board. "Solder" side is ALWAYS on bottom. Strategic placement of targets helps to ensure correct orientation of each layer. (i.e. 3 targets, UPPER-LEFT; UPPER-RIGHT; & LOWER-LEFT.) Including your part number and/or company name on copper layers (Right-Reading from the respective side of the board) prevents your board from being built inverted. (Top on Bottom, Bottom on Top.)
- Board outline (FAB LINES) included with Gerber's helps to ensure correct size and shape. We cut to center of board outline.
- An accurate FAB PRINT is required to ensure dimensions are followed correctly. This will also allow verification of drill sizes by quality control. Do NOT hesitate to include any information that you think may be unusual. THIS MAY PREVENT A DELAY OF SHIPMENT.
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WHAT COULD CAUSE YOUR BOARD TO GO ON HOLD
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| Corrupt PKZIP file. (Zip file fails CRC check when unzipped, files are damaged) |
Fabrication print not supplied and/or is missing the following:
- Drill sizes and locations by shape
- Overall dimensions (Showing any cutouts, slots, anything unusual, etc.)
- Material type and finished copper weight and thickness
- Tolerance specifications. (Defaults: +/-.005 Drill, +/-.010 Fab) (Fab print can be GERBER or Fax of Plot)
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| Deviations between Gerber and Fab print |
| Drill file missing or in Tango ASCII even format. (Excellon format, no zero suppression) |
| Drill file missing tool list (ASCII text file) |
| Drill has obviously missing hole or incorrect locations |
| Aperture list corrupt or incomplete (Undefined D-codes) |
| Aperture list is missing. Text list of D-codes used by each Gerber file is required (shapes/sizes) |
| Gerber files are scaled (We require 1 to 1 size files) |
| Conflicting or missing Right-reading information (Which side is Up/Down?) |
| Thermal connections missing on inner layers (Multi-layer) |
| Copper layers with no pads and/or no traces |
Manufacturability rule violations:
- Pad/Trace, Pad/Pad, Trace/Trace less than 5 mils
- Trace size less than 5 mils
- Annular ring is less than 7 mils per side
- Inner layer drill to adjacent copper clearance less than .015 mils. We require .015" from the edge of a hole to any adjacent copper on the inner layers.
Examples:
- Plane layers: The clearance (anti-pad) should have a diameter at least .030" greater than the finished hole size.
- Signal layers: Conductors adjacent to any drilled pads need to be .015" from the edge of the hole (i.e. if the annular ring of the pad is .016" (.008" on each side) and the air gap is .007" then this .015" requirement has been met)
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STILL HAVE QUESTIONS? CONTACT YOUR SALES PERSON
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