| 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} |
| 314 | DF | .~.~ Variable threshold (e.g., floating gate memory device) {2} |
| 315 | DF | .~.~.~ With floating gate electrode {2} |
| 316 | DF | .~.~.~.~ With additional contacted control electrode {5} |
| 321 | ![]() | .~.~.~.~.~ With thin insulator region for charging or discharging floating electrode by quantum mechanical tunneling |