Transistor (epo) Patents (Class 257/E21.37)
E Subclasses
- Planar transistor (EPO) (Class 257/E21.376)
- Mesa-planar transistor (EPO) (Class 257/E21.377)
- Inverse transistor (EPO) (Class 257/E21.378)
- With single crystalline emitter, collector or base including extrinsic, link or graft base formed on th e silicon substrate, e.g., by epitaxy, recrystallization, after insulating device isolation (EPO) (Class 257/E21.379)
- Where main current goes through whole of silicon substrate, e.g., power bipolar transistor (EPO) (Class 257/E21.38)