257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
629 | DF | WITH MEANS TO CONTROL SURFACE EFFECTS {4} |
632 | DF | .~ Insulating coating {8} |
646 | .~.~ Coating of semi-insulating material (e.g., amorphous silicon or silicon-rich silicon oxide) |