plating, anodizing, & finishing Q&As since 1989
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
Ed. note: Sorry, this RFQ is outdated so private contact is no longer available, but public technical replies are still welcome! No public brand/source suggestions please ( huh? why?)
Try to contact some suppliers, they should come up with a process.
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
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