We are using it for board production of custom products.
On 2018-02-14 15:57:36
If you keep the distance between the exposure time and the light source, the substrate will be stable stably. Do not touch the surface of the board with bare hands until the etching is finished. This is why the copper foil remains partly.
It is very convenient to make prototype board of our products, we use it for many years. Temporary photosensitive defects came out in a row and closed, but it seems to have been improved now. It seems that the quick positive photosensitive board only deals with Sun Hayato.
Items with a manufacturing date of 2016.11.11 have been sent.
Because it is sensitive, there is a possibility that it will not be used as it will soon be one year old.
It may be better not to put out any items on this hand
It was difficult to apply the photosensitizer evenly even when applying the photosensitizing agent on your own and developing it. Naturally there were many failures, but since we changed to this Sunhayato, we have already used 50 or more sheets, but almost no failures. In addition, it is now possible to create a pattern of 0.2 mm.
You can also see examples of failure on the net, but if you have a dedicated light, you do not have any problem if you do according to the instructions. It may be a little tough for people who expose them with sunlight etc.
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