Hi, 
A Hull cell is a four-sided vessel, 3 sides are perpendicular to each other,
the fourth is at an angle. The parallel sides are 4.4 and 12.1 cm long,
respectively, and are separated by 6.4 cm. The side opposite the 6.4-cm-side
is at a 40oangle. The 6.4-cm-side is the anode side and a cathode is place at
the 40o-angle side. You fill the vessel with your plating solution sample and
apply plating current. Because of the 40o angle, the plating current density
varies from one side of the cathode to the other, typically from 0.5 to 60
mA/cm-squared. The quality of the plating solution is indicated by the
quality of the copper deposit achieved by the varying plating current density
along the cathode.

Werner Engelmaier
Engelmaier Associates, Inc.
Electronic Packaging, Interconnection and Reliability Consulting
23 Gunther Street
Mendham, NJ  07945  USA
Phone & Fax: 973-543-2747
E-mail: [log in to unmask] 

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