TY  - JOUR
AB  - Purpose– To report on research on the alternative surface finish “direct gold on copper”, including reaction mechanism, methods of deposition and end uses.Design/methodology/approach– Examines the deposition reaction of the electroless flash gold plating bath, and the effects of the copper surface roughness and deposition time on the deposit and solderability characteristics.Findings– Direct immersion gold is only partially immersion and mostly electroless in deposition mode. The surface is applicable to soldering for both leaded solder and lead‐free solders. The surface is also wire bondable.Originality/value– The paper offers details of a new alternative surface finish for use in printed circuit board fabrication as well as in packaging applications. The paper shows the electroless deposition mode of the process. The finish is ideally suited where Rf losses must be minimized. It is suitable for soldering as well as for wire bonding.
VL  - 32
IS  - 1
SN  - 0305-6120
DO  - 10.1108/03056120610616517
UR  - https://doi.org/10.1108/03056120610616517
AU  - Hashimoto Shigeo
AU  - Kiso Masayuki
AU  - Oda Yukinori
AU  - Otake Horoshi
AU  - Milad George
AU  - Gudaczauskas Don
PY  - 2006
Y1  - 2006/01/01
TI  - Direct immersion gold (DIG) as a final finish
T2  - Circuit World
PB  - Emerald Group Publishing Limited
SP  - 16
EP  - 22
Y2  - 2024/09/19
ER  -