Circuposit™ 484 Oxide is the most widely used black oxide product world-wide to promote innerlayer adhesion of copper in multi-layer circuit board fabrication. This product works well for both traditional applications and also for direct laser drilling applications for HDI PCB fabrication.
For Traditional Applications, in combination with PC Oxide Convertor:
For HDI Applications:
Improved Wetting of Resin, Higher Adhesion
Excellent Microvia Shape