Dow Electronic Materials
Vertical Desmear Process for SAP

CIRCUPOSIT 7800 Desmear ProcessAs the surface roughness of dielectric materials continues to reduce to meet the needs of next generation finer width and space patterns, it becomes more difficult to deliver uniform roughening of the low profile surface.

CIRCUPOSIT™ 7800 Desmear process is an easy to control 3-step process, specially formulated to apply to newer generations of dielectric materials to improve the adhesion of the subsequent metal layer.

    Key Benefits:
  • Process specifically optimized for SAP applications
  • Uniform roughness on low profile surface
  • Excellent via-bottom cleaning
  • Compatible with existing equipment
  • Excellent adhesion and reliability when used with the CIRCUPOSIT™ Electroless Copper process
Surface Morphology
After Lamination
after lamination
After Desmear
after desmear
Results on GX13 ABF Material