Second, when speaking about “parts”, specifically we are talking about the components that are soldered onto the PCB. When talking about PCBs, we are talking about printed circuit boards. As we mentioned in the last post, we will be talking about moisture sensitivity levels and baking PCBs / parts.įirst a couple of definitions. The picture above is what you might find when opening up parts for an electronics design that you are working on. Using the IPC-4761 via protection type classification, Via Holes filled with Resin will always results in a “ Type VII – Filled and Capped” Via Holes as shown below.Have you seen one of these before? It is a warning sign that the parts you have are sensitive to moisture! Drilling of only the vias that need plugging.Īfter these steps the normal PCB production process starts or continues: drilling of the other PTH holes, and the normal outer layer production processes.In case of making multi layers the inner layers are produced and bonded together before the filling process. This resin is applied using a dedicated machine the ITC THP 30.Īdditional process are required for resin filling and these must be performed before the normal PCB production can begin. We use the TAIYO THP-100 DX1 thermally curable permanent hole filling material. The Via Holes are filled with a special plugging resin. Use the Drill editor to manually select the via holes that are to be filled and identify them as Via Filled. Manually Identify Vias Holes to be Filled in the Drill Editor Alternatively, if you are supply a native CAD file (Eagle/KiCAD) it can also be a specific or an already existing layer in the design file. Provide a specific data file that contains only the vias holes that are to be filled and use an appropriate file name (e.g., Via Filling). Separate Data File/layer (preferred option) Remember to select the via filling option in our Advanced options of PCB Configurator.
If you have specific via holes that must be filled there are different ways in which you can provide this information as detailed below. If all via holes are to be filled, then the data can be sent as normal in one of the Data Input Formats we can accept and selecting the via filling option in our Advanced options of PCB Configurator. If you have component lead or mounting holes of 0.45 mm or smaller, please ensure that you clearly identify that they are plated holes and NOT via holes in our Drill editor.All Via Holes are Plated Through Holes and are defined by default as a hole that is
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