Hi,

We got problems with internal stress by electroplating nickel-stamps up to 3mm
thickness. We use a nickelsulfamate-bath: Ni-sulfamate 450g/l (Barett); Boracid
- 30g/l; fluortenside 1g/l; 54°C; pH 3-4; 1,8A/dm2.
Our Ni-stamps (4X7cm) were bent very much (over 300µm of 7cm). we tried to
reduce the current density, but this haven't brought better results.

We need help....

Peter