Tanaka Precious Metals
A Tokyo-based precious metals company that refines, processes and recycles gold, silver and platinum-group metals, supplying bonding wire and sputtering targets to the semiconductor industry.
田中貴金属工業・Packaging materials・Last updated: October 27, 2026
Overview
Tanaka Precious Metals is headquartered in Chiyoda, Tokyo and works with gold, silver and platinum-group metals from refining to recycling.
For semiconductors it supplies bonding wire of gold, silver and copper alloys that connects chips to packages, and sputtering targets of ruthenium, iridium and platinum.
Business: Bonding wire and precious metal sputtering targets
Why it matters
- Most packaged chips are still connected with bonding wire, and the shift from gold to copper and silver wire reduced material cost.
- Recycling precious metals from scrap is a large part of the economics of these materials.
Main products
- •Bonding wire (gold, silver and copper)
- •Precious metal sputtering targets (Ru, Ir, Pt)
Equipment categories
Categories where Tanaka Precious Metals is listed, with other Japanese makers and their products:
Sites in Japan
Head officeHeadquarters
Chiyoda, Tokyo