US PATENT SUBCLASS 257 / 447
.~.~.~.~ With backside illumination (e.g., having a thinned central area or a 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}
443  DF  .~.~.~ Matrix or array (e.g., single line arrays) {5}
447.~.~.~.~ With backside illumination (e.g., having a thinned central area or a non-absorbing substrate)

DEFINITION

Classification: 257/447

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

(under subclass 443) Subject matter wherein the matrix or array device is structured to permit incident light to reach the receptor region from the backside of the device.