US PATENT SUBCLASS 257 / 460
.~.~.~ With backside illumination (e.g., with a thinned central area or non-absorbing substrate)

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

414  DF  RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) {4}
428  DF  .~ Electromagnetic or particle radiation {2}
431  DF  .~.~ Light {15}
460.~.~.~ With backside illumination (e.g., with a thinned central area or non-absorbing substrate)

DEFINITION

Classification: 257/460

With backside illumination (e.g., with a thinned central area or non-absorbing substrate):

(under subclass 431) Subject matter wherein the device is structured to permit incident light to reach the receptor portion from the backside of the device.