abstract |
The invention provides a composition, dry film, condensate and printed circuit board. The present invention provides a composition, specifically to a resist composition, which can realize compromise of both surface solidifying performance and solidifying depth. The composition is characterized in that when the dry coated film has a thickness of 25 [mu]m before exposure, the absorbency L400 of a 400nm laser wavelength is 0.5-1.2, the absorbency L400 of a 410nm laser wavelength is 0.01-0.5, and L400> L410. |