5/22/2023 0 Comments Diptrace pcbif your design is high frequency I would recommend Rogers RT/duroid ( which is a very good supplier of material.Īll PCB Material used must NOT be layered with photo resist, if your board comes with it make sure you remove the resist first. PCBs for personal or external to the department/University you normally would have to supply the board but we do have a small stock of FR4 which is chargeable.īasic PCB material can be purchased from Farnell, RS, HoldersTechnology and MegaUK. The NC-Drill / Excellon Format, This produces 2 or more drill files supplying the tool data in one file and hole placement data in the other.Īll pcb designs and files must sent via email to and it is recommend to submit a 1:1 print out of the circuit showing drill hole sizes encase of import and conversion problems. Top Side, Bottom Side, Edge, Top Silk Screen and Bottom Silk Screen. (sometimes an aperture file is required depending on package and Gerber Format).įor Best results use a minimum of 5 layers e.g. Other applications you will need to convert the pcb design into a Gerber format for copper tracks, board edge and NC-Drill Excellon format for drill holes.Ī Gerber format produces a number of different files depending on the layers used in the design. Make sure that the minimum and maximum rules above have not been broken or there could be complications when making the board.ĭesigns produced with DipTrace can be sent as is. We only accept EAGLE and CST as last resort options as it can be very time consuming converting data types, thus resulting in slow manufacture and in some cases poor quality boards. DO NOT USE EAGLE CAD OR CST due to poor exports of CAM \ Gerber \ Drill files.Įagle designs can be imported into DipTrace but some errors can persist, CST designs can be imported as DXF but errors can persist. Other packages can be used but see Andy, Martin or Gerald first. NOTE : minimum hole size varies with board thickness Holes above and between drill sizes over 0.8mm can be routed to size rather than drilled but can leave a rougher cut.Ġ.1mm and greater. Laser ablation : 0.1mm ( NOTE : Can go smaller but depends on material )Īll board material must have at least a minimum of 2cm clearance between the edge of your material and your design. S103 milling : 0.25mm ( NOTE: Varies depending on material, we can go smaller but there is a risk of losing a pad / track )Ĭhemical Etch : 0.3mm ( NOTE: Varies depending on size of pcb, material and quality of etch resist ) T-Tech milling : 0.25mm ( NOTE: Varies depending on material, we can go smaller but there is a risk of losing a pad / track ) S103 milling : 0.25mm (NOTE: we can go smaller but the cut my not be uniform)Ĭhemical Etch : 0.3mm (smaller can be done if professional masks are produced from an external supplier) T-Tech milling : 0.28mm (NOTE: we can go smaller but the cut my not be uniform) Minimum separation between tracks and pads T-Tech milling : 0.5mm to 2.5mm | S103 milling : 0.5 to 3mm | Chemical Etch : Any | Laser ablation : 0.2 to 7mm T-tech milling : 430mm x 300mm | S103 milling : 220mm x 300mm | Chemical Etch : 220mm x 300mm | Laser ablation : 220mm x 300mm PCB Specifications Minimum
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