Electronics Related Products >> Materials for Manufacturing Process of PWBs
Copper Surface Roughning Chemicals for Multilayer PWBs
(Black Oxide & Reduction Process)
HIST−500 ∙HIST−100Inquiry
- HIST-500, HIST-100 is black oxide and reduction process chemicals for multilayerPWB.
It attains good adhesion between resin and copper by minute roughening form of metal copper, and realize high reliable PWBs without haloing.
Features
- High peel strength and high heat-resistance by the minute form of roughening the metal copper.
- By using this process, PWB can have high reliability without haloing occurrence.
| Items | Conditions | Units | Black Oxide | Reduction |
|---|---|---|---|---|
| Treated Surface | − | − | Oxide Copper | Metal Copper |
| Peel Strength | Cu35μm/FR-4 | kN/m | 0.8~1.4 | 0.8~1.3 |
| Haloing | 18%HCl, 3h Dip | − | Occuring | None |
| Thermal Stress Test | 260ºC/20s, Solder Dip | − | Pass | Pass |
| 288ºC/10s, 3cycles, Solder Dip |
− | Pass | Pass |
 |
 Forms of copper surface after reduction |
 Haloing |
Applications
- Inner layer copper surface roughening for Multilayer PWBs