HGS-5400 is the electroless gold plating chemicals which is non-cyanide,very stable and long life. This electroless gold plating has good wire-bonding reliability.
Features
Non-cyanide type electroless gold plating chemicals. Gold source is sodium gold sulfite.
Plating at various gold thickness.
Keeping long life by analyzing and replenishing ingredients.
Plating on fine pattern of LTCC substrates by applying HGS-5500T pre-treatment in standard process.
Characteristics
Items
Conditions
Units
Characteristics
Gold concentration
-
g/L
2.25
pH
-
-
7.5
Treatment temperature
Indirect method
( using double tank in hot water )
ºC
65
Gold appearance
-
-
Light Yellow
Gold plating rate
at 65ºC
μm/h
0.9
Pull strength of wire-bonding
Gold wire φ25μm
g
7~10
Ball shear strength
Ball diameter φ0.4mm
g
700~900
Gold surface of HGS-5400 with SEM
(Gold plating rate 0.5μm;×10,000)
Without HGS-5500T treatmentWith HGS-5500T treatment