US PATENT SUBCLASS 438 / 57
.~ Responsive to electromagnetic radiation

Current as of: June, 1999
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438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

48  DF  MAKING DEVICE OR CIRCUIT RESPONSIVE TO NONELECTRICAL SIGNAL {5}
57.~ Responsive to electromagnetic radiation {22}
58  DF  .~.~> Gettering of substrate
59  DF  .~.~> Having diverse electrical device {1}
61  DF  .~.~> Continuous processing {1}
63  DF  .~.~> Particulate semiconductor component
64  DF  .~.~> Packaging (e.g., with mounting, encapsulating, etc.) or treatment of packaged semiconductor {2}
68  DF  .~.~> Substrate dicing
69  DF  .~.~> Including integrally formed optical element (e.g., reflective layer, luminescent layer, etc.) {3}
73  DF  .~.~> Making electromagnetic responsive array {3}
82  DF  .~.~> Having organic semiconductor component
83  DF  .~.~> Forming point contact
84  DF  .~.~> Having selenium or tellurium elemental semiconductor component
85  DF  .~.~> Having metal oxide or copper sulfide compound semiconductive component {1}
87  DF  .~.~> Graded composition
88  DF  .~.~> Direct application of electric current
89  DF  .~.~> Fusion or solidification of semiconductor region
90  DF  .~.~> Including storage of electrical charge in substrate
91  DF  .~.~> Avalanche diode
92  DF  .~.~> Schottky barrier junction
93  DF  .~.~> Compound semiconductor {2}
96  DF  .~.~> Amorphous semiconductor
97  DF  .~.~> Polycrystalline semiconductor
98  DF  .~.~> Contact formation (i.e., metallization)

DEFINITION

Classification: 438/57

Responsive to electromagnetic radiation:

(under subclass 48) Process for making a device or circuit responsive to ultraviolet, visible, or infrared light, x-rays, or gamma rays.

(1) Note. Processes of making devices in which (a) stored electrical charges are erased by exposure to electromagnetic radiation or (b) the device is switched from a nonconducting state to a conducting state or vice versa (e.g., optical turn-on type), are not considered to be responsive to a nonelectrical signal for placement in this and its indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257, for a process of manufacturing a field effect transistor which has a floating gate structure capable of having electrical charge stored therein erased upon the application of electromagnetic radiation.

SEE OR SEARCH CLASS

427, Coating Processes,

74+, for a process of coating with a photoelectric material to produce an electrical product.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, 31+, for an electric or magnetic imagery process employing a photoconductive semiconductive component.