光引发剂003

Although this is depending on the usage and the amount of addition, the molar extinction coefficient is small, so it is μ In the film of more than m, the transmittance in the depth direction is high, and the acid can be formed in the deep layer.

On the other hand, about μ In the case of a thin film of M, it is preferable to use a type  having a large molar extinction coefficient because of its small transmittance. series is about μ It is suitable for medium thickness of M.