257 / | HD | ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES) |
618 | DF | PHYSICAL CONFIGURATION OF SEMICONDUCTOR (E.G., MESA, BEVEL, GROOVE, ETC.) {6} |
623 | DF | .~ Mesa structure (e.g., including undercut or stepped mesa configuration or having constant slope taper) {3} |
624 | .~.~ With low resistance ohmic connection means along exposed mesa edge (e.g., contact or heavily doped region along exposed mesa to reduce "skin effect" losses in microwave diode) |