photosensitive film Archives - 4MCPCB https://4mcpcb.com/tag/photosensitive-film Uooce Inc provides low cost & high quality Multi-layer Flexible Printed circuit board(PCB), learn more [email protected] Thu, 01 Dec 2016 08:18:19 +0000 en-US hourly 1 https://4mcpcb.com/wp-content/uploads/2020/02/cropped-Favicon-16x16-1-32x32.png photosensitive film Archives - 4MCPCB https://4mcpcb.com/tag/photosensitive-film 32 32 How to registrate holes on photosensitive film? https://4mcpcb.com/how-to-registrate-holes-on-photosensitive-film.html Fri, 21 Oct 2016 04:00:49 +0000 http://4mcpcb.com/?p=2525 Multilayer PCB image process needs several photosensitive film. From our 4MCPCB experience, we should make one film per PCB layer at least. Even some of the special multilayer PCB have a similar layer circuit, also require separate the image phontosentive film. This point may confuse by most green PCB designers. The importance of aligning photosensitive [...]

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]]> Some common sense of Image the outer layers process of rigid PCB https://4mcpcb.com/some-common-sense-of-image-the-outer-layers-process-of-rigid-pcb.html Tue, 04 Oct 2016 09:09:22 +0000 http://4mcpcb.com/?p=2419 Image the outer layers process of rigid PCB should be in clean room If you visit a professional rigid PCB factory, you must find many processes in clean room, likely image the outer layer process. But why we should take this step to clean room, or the risk of image outer layer circuit process? We [...]

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