Photosensitive composition
A technology of photosensitive composition and photopolymerization initiator, which is applied in the direction of optics, photomechanical equipment, and photosensitive materials used in photomechanical equipment, etc., and can solve the problems of low sensitivity of photosensitive composition and inability to form pattern latent images
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Examples
Embodiment 1～5、 comparative example 1～2
[0100] The components shown in Table 1 were blended and stirred in the amounts (parts by mass) shown in Table 1, and dispersed by a 3-roll mill to obtain photosensitive compositions, respectively.
[0101] Table 1
[0102]
[0103] Various properties of the solder resist films formed using the compositions of Examples 1 to 5 and Comparative Examples 1 to 2 were examined and evaluated by the following tests.
[0104]
[0105] Each photosensitive composition was coated on a glass plate with a spreader, and then dried at 80° C. for 30 minutes using a hot air circulation drying oven to prepare the dried coating film on a glass plate. About the dry coating film of each photosensitive composition on this glass plate, use ultraviolet-visible spectrophotometer (manufactured by JASCO Corporation, Ubest-V-570DS) and integrating sphere device (manufactured by JASCO Corporation, ISN-470 ) to measure the absorbance. Moreover, the absorbance base line in the wavelength range of 300 n...
Embodiment 6
[0124]Example 1 shown in Table 1 was diluted with methyl ethyl ketone, coated on the carrier film, heated and dried in a hot air dryer at 80° C. for 30 minutes, to form a photocurable thermosetting resin composition layer with a thickness of 25 μm, on which A dry film was obtained by attaching a cover film. Thereafter, the upper film was peeled off, and after the patterned copper foil substrate was thermally laminated and bonded, the exposure was carried out under the conditions of Example 1 shown in Table 3. The aqueous solution was developed for 60 seconds to obtain an image. Further, it was heated and cured in a hot air dryer at 150° C. for 60 minutes to prepare a test substrate. With respect to the obtained test substrate having a cured film, evaluation tests for various characteristics were performed by the above-mentioned test method and evaluation method. The results were the same as those of Example 1 in Table 3.
[0125] As described in detail above, according to t...
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Abstract
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