US PATENT SUBCLASS 438 / 597
.~ To form ohmic contact to semiconductive material


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

584  DF  COATING WITH ELECTRICALLY OR THERMALLY CONDUCTIVE MATERIAL {2}
597.~ To form ohmic contact to semiconductive material {24}
598  DF  .~.~> Selectively interconnecting (e.g., customization, wafer scale integration, etc.) {3}
602  DF  .~.~> To compound semiconductor {2}
607  DF  .~.~> With epitaxial conductor formation
608  DF  .~.~> Oxidic conductor (e.g., indium tin oxide, etc.) {1}
610  DF  .~.~> Conductive macromolecular conductor (including metal powder filled composition)
611  DF  .~.~> Beam lead formation
612  DF  .~.~> Forming solder contact or bonding pad {1}
618  DF  .~.~> Contacting multiple semiconductive regions (i.e., interconnects) {5}
652  DF  .~.~> Plural layered electrode or conductor {5}
658  DF  .~.~> Altering composition of conductor {1}
660  DF  .~.~> Including heat treatment of conductive layer {2}
665  DF  .~.~> Utilizing textured surface
666  DF  .~.~> Specified configuration of electrode or contact {2}
669  DF  .~.~> And patterning of conductive layer {4}
674  DF  .~.~> Selective deposition of conductive layer {3}
678  DF  .~.~> Electroless deposition of conductive layer
679  DF  .~.~> Evaporative coating of conductive layer
680  DF  .~.~> Utilizing chemical vapor deposition (i.e., CVD) {1}
682  DF  .~.~> Silicide {1}
684  DF  .~.~> Electrically conductive polysilicon
685  DF  .~.~> Refractory group metal (i.e., titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), niobium (Nb), tantalum (Ta), chromium (Cr), molybdenum (Mo), tungsten (W), or alloy thereof)
686  DF  .~.~> Noble group metal (i.e., silver (Ag), gold (Au), platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), iridium (Ir), osmium (Os), or alloy thereof)
687  DF  .~.~> Copper of copper alloy conductor
688  DF  .~.~> Aluminum or aluminum alloy conductor


DEFINITION

Classification: 438/597

To form ohmic contact to semiconductive material:

(under subclass 584) Processes for depositing electrically conductive material which forms an indirect or direct ohmic contact to a semiconductive region.