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ABL Circuits PCB Manufacture Developing

ABL Circuits PCB Manufacturing Process Developing

ABL Circuits PCB Manufacture Developing The next stage is to pass the panel, which has been exposed, through a conveyorised developing machine and this rinses off all of the areas that haven’t been exposed to the UV light.

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ABL Circuits PCB Manufacture UV Exposure

ABL Circuits PCB Manufacturing UV Exposure

ABL Circuits PCB Manufacturing UV Exposure The panel is then vacuumed down in the exposure unit and exposed for a short time and the black and clear film will only allow the UV light to penetrate through the clear areas and this gives you your image of your tracking on the panel both sides.

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ABL Circuits PCB Manufacture Photo Plots

ABL Circuits PCB Manufacture Photo Plots

ABL Circuits PCB Manufacture Photo Plots Once the panels are laminated, which is done in the yellow room because the film is UV sensitive, the photo plots which represent the component side and the track side, both have precision tooling holes punched in the field for locating on to the panel. These are positioned on a tooling pin and clamped down and the whole panel is put into the exposure…

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ABL Circuits PCB Manufacture Lamination

ABL Circuits PCB Manufacture Lamination

ABL Circuits PCB Manufacture Lamination Once through the conveyorised shadow process the boards come out dry and perfectly clean and the copper is bright copper but has carbon down the holes and the next process is to pass it through the laminating machine which puts a blue photosensitive UV film onto either side of the panel.

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ABL Circuits PCB Manufacture Shadow Process

ABL Circuits PCB Manufacturing Shadow Process

ABL Circuits PCB Manufacturing Shadow Process The next part in the process is to pass the drilled panels through a solution of carbon and water and is known as a shadow process, which is a conveyorised process so every panel is treated exactly the same, the same speed, the same temperature and the whole process puts carbon down the holes so that they can be plated onto at a later…

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ABL Circuits PCB Manufacture Panels Split

ABL Circuits PCB Manufacture Panels Split

ABL Circuits PCB Manufacture Panels Split Once the panels have been drilled on the CNC Drilling machine they are unpacked and the aluminium material is taken off the top and the panels are split then checked with the drill plots to make sure there are no missing holes in case there is a broken drill and although the machine detects the broken drill it is always best to check manually…

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ABL Circuits PCB Manufacture Drilling The Holes

ABL Circuits PCB Manufacture Drilling The Holes

ABL Circuits PCB Manufacture Drilling The Holes The next process in PCB Manufacture – drilling the holes on the panels on the CNC Drilling machine on which we can drill right down to 0.3mm diameter which will give a finished hole of 0.2mm and we go up to 6.5mm diameter. The panels are loaded in either manually or they can be auto loaded and run unaided through the night. It…

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ABL Circuits PCB Manufacture – Preparation

ABL Circuits PCB Manufacture Preparation

ABL Circuits PCB Manufacture Preparation The standard material thickness is 1.6mm, although we do go down to 0.3-0.4mm when necessary and also up to a maximum of 3.2mm. When we are doing standard boards at 1.6mm they get stacked together in 3’s for the drilling process using tooling holes and a backing board for the drill to enter into and a layer of thin aluminium on the top surface to…

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ABL Circuits PCB Manufacture – Raw Materials

ABL Circuits PCB Manufacture Raw Materials

ABL Circuits PCB Manufacture Raw Materials We mostly buy in the raw material to cut the panels to size for the PCB production process, this is cut to size depending on what’s required on a power guillotine, if there is a large batch of 50lbs or more, then we buy the panels in pre-cut.

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