If possible, provide drilling files with separate metallic (PTH) and non-metallic (NPTH) holes. If this is not possible, specify clearly which holes are PTH and which holes are NPTH. The 33mil tip size is converted to 0.8382mm and then rounded to 0.85mm. The 32mil tip size is converted to 0.8128mm and then rounded to 0.80mm. The 31mil tip is converted to 0.7874mm and then rounded to 0.80mm.
tol – the tips of description files (if not present in the drill file)Īll sent files containing the drill bit diameters are always read by our CAM systems as the size of the finished hole.Īll PCB production tips are manufactured in 0.05 mm increments. So we convert the size of the holes in millimeters to the nearest 0.05 mm. Apr – Openings of the imagesetter (only RS274D) gbo – gerber for the BOTTOM of the screen printing (if required) gto – gerber for the TOP screen printing (if required) gbs – gerber for the BOTTOM of the solder mask (if required) gts – gerber for the TOP of the solder mask (if required) gl4 – gerber for the fourth inner layer (just above the bottom) gl3 – gerber for the third inner layer (just above the fourth inner layer) gl2 – gerber per second inner layer (just above the bottom) gl1 – first layer gerber (immediately under the top) drl – ASCII Drill file (Excellon o Sieb & Meyer) The files that are required to complete a certain order, depend on the number of circuit layers and the possible options. In this section you can find the complete list of the files needed for the various products marketed by PCB-PROTO. The files are of three types: required, dependent on the number of layers and optional. Try using a simple file naming and try to avoid long file names. Make sure that you can easily determine the function of each layer from the filename. Where you can contr ollare the output data generated (Gerber & Excellon files) using a Gerber viewer before sending it to production. Make sure that all the instructions for understanding the PCBs are included in the Gerber and Excellon files. Please do not provide any additional files such as original CAD data, Graphicode GWK files, Excel (.xls) file, Part Lists, positioning and assembly information, etc. Gerber files for copper layers, soldermask and legend layers, mechanical layers and SMD paste layers. In addition to carbon, peel off and via-fill layer if necessary.
You can also check the accuracy of generated Gerber output data by downloading one of the many free Gerber viewers available on the internet.įor all PCBs layer - Extended Gerber (RS-274X)įor drilling - Excellon1 + Diameter list used (built-in)į ornire only the data files nec essari for production. These are:
The Gerber size is clear and unambiguous. It has been the industry standard format for PCB production for many years. Every PCB design software can produce Gerber data (the process will be fully described in the manual CAD PCB or in the help file). Please provide only ASCII-coded files. This type of file is readable by our engineers and can be verified visually, if necessary, during data preparation. Design data Gerber RS-274X or RS-274D format (plane with real-size holes, not a drill legend)ĭPF (plane with real holes, not a drill legend) Sieb & Meyer + Diameter list used (best if embedded)
Layout PCB means all copper layers, soldermask, silkscreen, card profile or mechanical floor, pasta floors SMD, for carbon levels, peel-off plans, etc.Įxcellon (1 or 2) + diameters list used (better if incorporated) Gerber RS-274D (Standard Gerber with separate aperture file – developed by Gerber Systems) Gerber RS – 274X (Extended Gerber with embedded apertures – developed by Gerber Systems)
These Guidelines set out best practice to reduce the cost of your boards and to minimize the risk of errors arising during manufacture process. Not all of the PCB design features are available on all our services. Look at our services overview to see more details.Īccepted format formats for PCB layout are: