a microcircuit of a powerful darlington transistor on a cut scribed semiconductor silicon multilayer wafer. semiconductor chip is

100 300 aluminum amplification arsenide background bipolar breakdown chip clean closeup composite crystal current cut darlington epitaxial expensive focus fragile frequency gallium germanium granite gray grey integral isolate isolated junction metallization microcircuit microns multilayer nitride one oxide package plate powerful protection scheme scribed semiconductor silicon stacking structure table top transistor view voltage wafer white