257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
213 | DF | FIELD EFFECT DEVICE {6} |
288 | DF | .~ Having insulated electrode (e.g., MOSFET, MOS diode) {17} |
409 | .~.~ With means to increase breakdown voltage (e.g., field shield electrode, guard ring, etc.) |