.~ Interdigitated pn junction or more heavily doped side of junction is concave
DEFINITION
Classification: 257/654
Interdigitated pn junction or more heavily doped side of junction is concave:
(under subclass 653) Subject matter wherein the device has at least one pn junction which is interdigitated (i.e., in which plural layers or fingers of n type material alternate with plural layers or fingers of p-type material, with then-type layers or fingers being parts of a single unitary n region and the p-type layers or fingers being parts of a single unitary p-region).
(1) Note. Interdigitated configurations are frequently used to increase the amount of PN junction area in a given volume of semiconductor material.