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APPLICATION OF LIQUID TYPE PHOTOIMAGEABLE SOLDER MASK YK2003-710

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(1) One-side exposure

(2) Double-side exposure

Pre-baking

Optimal pre-baking processing condition is 60min. 70¢J

Exposure

Exposure energy of  200~300 mJ/cm2 is required.

Development

Table 1 Development condition

 

     Development condition

Optimal development condition

Developer

      0.7~1.5wt.%Na2CO3

      1.0wt.%Na2CO3

Temperature

          25~35¢J

          30¢J

Spray pressure

  98~294 kPa (1.0~3.0 kg/cm2)

196 kPa (2.0 kg/cm2)

Development time

         30~90sec.

           60sec.

Post-curing(Thermosetting)

 Optimal post-curing processing condition is 60min. at 150¢J.

 

 

ALL DATA FOR REFERENCE ONLY