AU1 Gold Conductor Etchant
Union Etchant Internationals
(UEI) premium AU1 gold conductor etchant is designed for photo-etching
ultra-precision mini-circuits and chemical milling micro-components. AU1's
carefully controlled formula is ideal for etching hybrid thin film circuits,
such as resistor-conductor and microwave conductor patterns.
The formulation of UEI's AU1
Gold Etchant is one of the strongest available today and offers many
advantageous features and benefits.
Longer
lasting: AU1 is specially formulated to retain more gold in solution.
Because it is long lasting, you optimize your production schedule and minimize
downtime.
Fast etching
rate: AU1 selectively, rapidly, and uniformly dissolves vacuum-deposited
gold with minimum undercutting. The typical etching rate for 24-karat-gold thin
film is approximately 500-800 Angstroms per second at 40-50 degrees C. AU1
provides excellent photo pattern resolution and definition and does not
adversely affect photo resists. 
Cyanide
free: The AU1 solution contains no cyanides. It is a stable and reliable
etchant that is safer to use than other gold etchants on the market.
Enhances gold
recovery: UEI's complementary gold recovery product, GOLDOUT™,
recovers 99.4% of the gold from spent AU1. As a result, UEI's spent etchant is
less hazardous to dispose than that of other gold etchants on the market. Easy,
on-site gold recovery is an added benefit for semiconductor manufacturers, when
you consider the price of gold on the market. |
