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| DUPONT*: PRINTED CIRCUIT MATERIALS (PCM) |
| Riston* Photoresist |
| DuPont* Riston* dry film photoresist revolutionized the way printed circuit boards were fabricated when it was invented by DuPont 40 years ago. Fabricators challenged to produce denser and more complex boards choose DuPont, for improved product and process solutions that keep them both competitive and profitable. Explore our Riston® line of high performance dry film photoresists for your next PWB application. |
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| Silver Halide & Diazo Film |
| DuPont provides unique, customer developed hybrid solutions utilizing our advanced thick film experience in inks, screen printing, and coating pastes. Our solutions include: integrating active and discrete components; wire bonding; conductors; and solder joints. |
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| Dry Film Solder Mask |
DuPont* Vacrel* 8100 Dry Film Soldermask is an aqueous processable, negative working photopolymer that provides environment protection to the printed circuit boards through its excellent chemical, electrical and mechanical properties. Typical applications are for organic chip carrier, small batches that require fast cycle time, heavy back panels, and boards characterized by high circuit heights.
Special characteristics that Vacrel* 8100 Dry Film Soldermask provides are:
- Reliable defect-free coverage of circuit traces, independent of line density
- Total encapsulation of circuitry when the proper film thickness is applied with vacuum and heat
- Good adhesion to copper conductor surfaces and substrates commonly used in the printed circuit board industry
- Excellent flux and solder resistance
- Reliable tenting of holes
- Excellent long-term electrical and mechanical properties
- Meets flammability requirement of Underwriters Laboratories UL-94
- Complies with RoHS directive
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