Copper Etchant BTP
Transene Copper Etch BTP provides a faster etch rate while maintaining nickel compatibility.
PROPERTIES:
PROPERTY
| Copper Etchant BTP
|
Appearance
| Deep Purple
|
pH
| 7.5-8.5
|
Storage Temp.
| 50-80 oF
|
Shelf Life
| 1 year
|
Etch Rate
| 150 Å/sec @ 30 oC
|
Etch Temperature
| 30-40 oC
|
Resist Compatibility
| Negative
|
APPLICATION:
Selective Copper Etchants are best used at slightly elevated temperatures. Avoid temperatures above 60 oC. Continuous mild agitation is required.
Selective Copper Etchants are manufactured using high purity raw materials such as semi or ACS Reagent chemicals and 1018 Mohm.cm resistivity deionized water. The pH of both solutions is maintained using ammonium hydroxide.