PLANSEE delivers tungsten and molybdenum semiconductor base plates used as carrier and contact plates for silicon wavers in thyristors (GTO‘s), transistors and silicon controlled rectifier diodes. With their high purity as well as high electrical and thermal conductivity our materials reliably dissipate heat away from the active device. An ideal coefficient of thermal expansion matching the semiconductor material avoids critical mechanical stresses causing premature device failure.
Advanced coatings
PLANSEE offers semiconductor base plates coated with ruthenium, nickel, chromium, silver or gold. Advanced coatings protect against oxidation and improve the electrical contact. Due to their good adhesion they build a firm compound with the semiconductor. We apply our coatings by means of physical vapour deposition. This process ensures higher purity and more homogeneous layers than the conventional electroplating process
Forms of delivery
- Discs made of molybdenum and tungsten
- Squares and rectangles made of molybdenum and tungsten
- Molybdenum rings
- Molybdenum plates
- Pressed-sintered molybdenum pins
Our team will be happy to find the ideal design and coating solution for your application.
