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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Need advice plating electroless nickel plating on silicon wafer

I need help in electroless plating of Nickel on silicon wafer -- to replace evaporation metal process by electroless process.

Roberto Zepeda Delgadillo
semiconductors - Guadalajara, Jalisco, Mexico
1999

Ed. note: Sorry, this RFQ is outdated, and contact info no longer available; but technical replies are welcome. No commercial suggestions please ( huh? why?)

Try to contact some suppliers, they should come up with a process.

Sara Michaeli
Tel-Aviv-Yafo, Israel
1999

Nickel can be plated on silicon wafers in several ways:

1. Aluminum can be vacuum coated onto the silicon first which is then zincated and plated.

2. Palladium can be used to catalyze the silicon and then the surface is plated.

3. An immersion coating of nickel can be induced with a fluoride solution and then the surface plated.

In the latter two cases it is necessary to use a high temperature bake to get good adhesion.

Carl Steinecker
Waterbury, Connecticut
2000

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