What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
Class Number: 148 Class Title: METAL TREATMENT Subclass Subclass Number Title 95 PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL 96 .Superconductive metal or alloy (i.e., superconductive Tc at or below 30'K) 97 ..Particle (e.g., ion, neutron, etc.) bombardment or electromagnetic wave energy (e.g., laser, etc.) 98 ..Producing or treating an A3B (e.g., Nb3Sn, V3Ga, Nb3Al, etc.) superconducting alloy 99 .Treating in extraterrestrial environment (e.g., space, moon, etc.) or zero gravity environment 100 .Magnetic materials 101 ..Permanent magnet 102 ...Age hardening 103 ...Treatment in a magnetic field 104 ..Dust cores 105 ..Particulate material 108 ..Treatment in a magnetic field 110 ..Silicon steel 111 ...Working 112 ...Heat treatment 113 ....With special compositions 120 ..Working 121 ..Heat treatment 122 ...With special compositions 194 .Chemical-heat removing (e.g., flame-cutting, etc.) or burning of metal 195 ..Control responsive to sensed condition of workpiece 196 ..Program or pattern control 197 ..Utilizing fluid contact other than flame 198 ..With solid additive 199 ...Metal powder 200 ..Of edge or corner (e.g., deburring, etc.) 201 ..Cylindrical workpiece 202 ..Scarfing (e.g., desurfacing, planing, gouging, etc.) 203 ...Simultaneous removing or burning of multiple sides of workpiece 204 ..Flame piercing 205 ..Plural nozzles or plural work-contacting jets 206 .Carburizing or nitriding using externally supplied carbon or nitrogen source 207 ..Carburizing or nitriding uniformly throughout the entire mass (i.e., internal carburizing) 208 ..With decarburizing or denitriding 209 ..Utilizing particulate fluid bed 210 ..Of selected surface area (e.g., zone, top only, etc.) 211 ...With working, machining, or cutting 212 ...Nitriding 213 ...Utilizing attached protective shield, mask or coating 214 ....With noncarburizing or non-nitriding coating 215 ..Measuring, sensing, or testingg 216 ...Of gas composition (e.g., carbon content, etc.) 217 ..With noncarburizing or non-nitriding reactive coating (e.g., oxidizing, siliconizing, boronizing, etc.) 218 ..Combined carburizing and nitriding (e.g., carbonitriding, nitrocarburizing, etc.) 219 ...With working, machining, cutting, or post-carburizing and post-nitriding heating or quenching 220 ..With producing or treating of workpiece having plural noncarburized or non-nitrided layers or mechanically engaged article or stock 221 ..With casting or solidifying from melt 222 ..Utilizing ionized gas (e.g., plasma, etc.) or electron arc or beam 223 ..Including use of vacuum 224 ..Utilizing wave energy (e.g., laser, etc.) or electric heating with work as conductor 225 ..Iron(Fe) or iron base alloy 226 ...With working, machining, or cutting 227 ...Utilizing fused agent or media 228 ....Nitriding 229 ....With post-carburizing quenching 230 ...Nitriding 231 ....Utilizing nitrogen containing agent other than ammonia or elemental nitrogen 232 ....With post-nitriding heat or quenching 233 ...With post-carburizing heating or quenching 234 ...Utilizing agent containing cyano (CN) radical or halogen (X) radical or metal carbonate 235 ...Utilizing hydrocarbon, oil or oxygenated hydrocarbon (e.g., alcohol, furan, carbohydrate, etc.) 236 ...Utilizing solid carbonaceous material containing free carbon, coal, peat, or coke 237 ..Refractory metal (i.e., Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W) or refractory base alloy 238 ..Nitriding 239 .With ion implantation 240 .Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore 241 ..Testing or electrical or wave energy utilized 242 ..Molten bath or molten surface utilized during reaction 243 ..Liquid reactive coating composition utilized 244 ...Dye or organic pigment containing 245 ...Electrically insulating coating formed which is more than mere oxide formation 246 ...Contains lubricant or oil or overcoat thereof 247 ...Contains an atom of hafnium, titanium or zirconium (excludes activating composition) 248 ...Contains nonreactive organic liquid at ambient temperature (e.g., solvent, etc.) 249 ....Nonreactive halogenated hydrocarbon 250 ...Contains organic phosphorus or organic chromium compound 251 ...Contains solid synthetic polymer 252 ...Contains dicarboxylic acid or salt thereof which reacts with metal substrate 253 ...Contains phosphorus 254 ....Liquid composition applied prior to reaction of metal substrate with phosphorus (e.g., cleaning, activating, etc.)) 255 ....With additional coating composition containing an atom of chromium, phosphorus or sulfur 256 ....Specified liquid or gaseous coating composition applied after reaction with phosphorus 257 .....Specified coating composition contains organic material 258 ....Contains an atom of chromium 259 ....Contains organic additive other than for pH control 260 .....Nitrogen-containing organic compound 261 ....Contains an atom of arsenic, boron or metal atom other than alkali metal 262 .....Contains an atom of iron or manganese or a group II metal atom (Be, Ca, Sr, Ba, Zn, Cd, Hg) 263 ......Contains an atom of calcium 264 ...Contains an atom of chromium 265 ....Post chromium treatment with specified material (other than mere air drying) 266 ....Contains an atom of sulfur, selenium or tellurium 267 ....Contains trivalent chromium ion or reducing agent or an organic additive 268 ....Contains an atom or boron, silicon or metal atom other than alkali metal 269 ...Metal substrate contains elemental Ti, Zr, Hf, Cu, Ta, or Th or alloy thereof 270 ...Contains an atom of sulfur, selenium or tellurium 271 ....Contains organic sulfur compound 272 ...Coating or treating a metal oxide with a specified composition 273 ...Contains an atom of arsenic or metal atom other than alkali metal 274 ...Contains organic material 275 ...Metal substrate contains elemental aluminum or magnesium or alloy thereof 276 ..Coating during or after metal oxide formation 277 ..Metal oxide formed after applied coating 278 ..Carbide formation, decarburization or carbonizing 279 ..Contains an atom of boron or silicon that reacts with metal substrate 280 ..Reactive material applied nonuniformly or reacted selectively 281 ..Metal substrate contains elemental Ti, Zr, Nb, Ag, Ta, or W or alloy thereof 282 ..Metal substrate contains elemental copper or alloy thereof 283 ..Contains an atom of halogen, organic material or gaseous sulfur 284 ..Coating composition applied forms oxide coating 285 ...Oxide of aluminum, beryllium or magnesium formed 286 ...Oxide of cobalt, chromium or nickel formed 287 ...Oxide of iron formed 500 .Utilizing disclosed mathematical formula or relationship 501 ..Nonferrous metal, nonferrous based alloy or no-base alloy 502 ...Aluminum(Al) or aluminum base alloy 503 ..Utilizing therein symbol for temperature 504 ...With working step 505 ..Utilizing therein factors or percentages related to metal or metal alloy composition (i.e., including carbon content) 506 ...With chromium(Cr) in the mathematical relationship 507 ...With titanium(Ti) in the mathematical relationship 508 .With measuring, testing, or sensing 509 ..Magnetic or electrical propertyy 510 ..Change in dimension (e.g., expansion, elongation, distortion, etc.) 511 ..Temperature 512 .Surface melting (e.g., melt alloying, etc.) 513 .Treating loose metal powder, particle or flake 514 .Treating consolidated metal powder, per se (i.e., no sintering or compacting step present) 515 .With explosive or exothermic agent 516 .Producing or treating layered, bonded, welded, or mechanically engaged article or stock as a final product 517 ..Subambient temperature 518 ..With electrocoating (e.g., electroplating, anodizing, sputtering, etc.) 519 ..Pipe or tube 520 ...With induction heating 521 ...With metal fusion bonding 522 ..With casting or solidifying from melt 523 ...Of aluminum(Al) or aluminum alloy 524 ..With metal fusion bonding step utilizing electron arc or beam 525 ..Utilizing wave energy (e.g., laser, electromagnetic wave energy, etc.), plasma or electron arc or beam 526 ..Electric heating with work as electrical conductor (e.g., alternating current, induction, etc.) 527 ..With metal next to or bonded to metal 528 ...With brazing or soldering 529 ...Iron(Fe) or iron base alloy present 530 ....Next to nonferrous metal or nonferrous base alloy 531 .....Aluminum(Al) or aluminum base alloy 532 .....Copper(Cu) or copper base alloy 533 .....Zinc(Zn), zinc base alloy or unspecified galvanizing 534 ....With working 535 ...Aluminum(Al) or aluminum base alloy present 536 ...Copper(Cu) or copper base alloy 537 ..With coating step 538 .With casting or solidifying from melt 539 ..Centrifugal casting 540 ..Iron(Fe) or iron base alloy 541 ...Continuous casting 542 ...Containing at least nine percent chromium(Cr) (e.g., stainless steel, etc.) 543 ...Containing at least 1.5 percent carbon 544 ....With working 545 ....With tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening, or quenching 546 ...With working 547 ....With tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening, or quenching 548 ...With tempering, ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening, or quenching 549 ..Aluminum(Al) or aluminum base alloy 550 ...With extruding or drawing 551 ...Continuous casting 552 ...With working 553 ..Copper(Cu) or copper base alloy 554 ...With workingg 555 ..Nickel(Ni) or nickel base alloy 556 ...With working 557 ..With working 558 .With vibration (e.g., mechanical, sound, etc.) 559 .Heating or cooling of solid metal 560 ..Actinide or trans-actinide metal or alloy having greater than 50 percent actinide or trans-actinide metals 561 ..Passing through an amorphous state or treating or producing an amorphous metal or alloy 562 ..Treating single crystal 563 ..Mechanical memory (e.g., shape memory, heat-recoverable, etc.) 564 ..Superplastic (e.g., dynamic recrystallization, etc.) 565 ..Utilizing wave energy (e.g., laser, electromagnetic, etc.) plasma or electron arc or beam 566 ..Electric heating with work as conductor (e.g., alternating current, induction, etc.) 567 ...Induction 568 ....Wire or filament 569 ....Railway stock (e.g., rails, wheels, axles, etc.) 570 ....Of hollow bodies (e.g., pipe, sphere, etc.) 571 .....Inside only 572 ....Rod, axle, shaft, or roller 573 ....Gear, threaded article, drill or serrated work surface (e.g., saw blade, etc.) 574 ....And cooling with fluid contact 575 .....Iron(Fe) or iron base alloy 576 ...Wire or filament 577 ..Chilling to subambient temperature 578 ...Iron(Fe) or iron base alloy 579 ..Iron(Fe) or iron base alloy 580 ...Spring or spring material 581 ...Railway stock (e.g., rails, wheels, axles, etc.) 582 ....Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 583 ....Wheel 584 ....With working 585 ....With work handling 586 ...Gear 587 ...Threaded article (e.g., screws, drill bits, etc.) 588 ...Serrated work surface (e.g., saw blades, etc.) 589 ...Ring 590 ...Pipe or tube 591 ....Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 592 ....Nine percent or more chromium(Cr) (e.g., stainless steel, etc.) 593 ....With working 594 ....With work handling 595 ...Wire, rod, or filament 596 ....Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 597 ....Nine percent or more chromium(Cr) (e.g., stainless steel, etc.) 598 ....With workingg 599 .....With working at or below 120'C or unspecified cold working 600 ....With work handling 601 ...With coiling or treating of coiled strip 602 ....With working 603 .....With working at or below 120'C or unspecified cold working 604 ...Of stacked plural workpieces 605 ...Nine percent or more chromium(Cr) (e.g., Stainless steel, etc.) 606 ....Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 607 ....Ageing, solution treating (i.e., for hardening), precipitation strengthening or precipitation hardening 608 .....With working 609 ....With working 610 .....With working at or below 120'C or unspecified cold working 611 ....Austenitic phase structure 612 ...Starting material contains 1.7 percent or more carbon (e.g., cast iron, etc.) 613 ....Decarburizing 614 ....Starting material is spherulitic (i.e., spheroidal) or vermicular (i.e., wormlike) 615 ....Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 616 ....Treating or producing white or malleable cast iron 617 .....Producing malleable cast iron 618 ......With spheroidal graphite production 619 ...Containing 10 percent or more manganese(Mn) (e.g., Hadfield steel, etc.) 620 ....With working 621 ...Highly alloyed (i.e., greater than 10 percent alloying elements) 622 ...Ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 623 ....Overageing 624 ....With working 625 ...Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 626 ....With preserving, recovering, separately treating or handling of the specified treating agent 627 ....With localized or zone heating or cooling 628 ....Using vacuum 629 ....Decarburizing or denitriding 630 ....Utilizing particulate fluid bed 631 ....Fused treating agent 632 .....With working 633 ....Gaseous agent 634 .....Hydrogen 635 .....With working 636 ....Liquid agent 637 .....And cooling or quenching 638 ......Treating composition contains water 639 ...Localized or zone heating or cooling 640 ....Utilizing protective or insulating shielding from heat 641 ....Simultaneous heating and cooling treatment 642 ....Heating with flame treatmentt 643 ....With working 644 ....Cooling 645 ...With flattening, straightening, or tensioning by external force 646 ...With restraining of metal from expanding or contracting during heating or cooling 647 ....Die quenching 648 ...With working 649 ....Forging 650 ....With working at or below 120'C or unspecified cold working 651 .....Heating step follows cold working 652 ......Separate cooling step follows cold working step 653 ....With additional nonworking heating step 654 ....Including cooling (e.g., quenching, etc.) 655 ...With separate handling or treating of air, water, or unspecified fluid treating media 656 ...Work handling 657 ....Continuous strip or sheet 658 ....During cooling step 659 ...Including spheroidizing 660 ...Including cooling (e.g., quenching, etc.) 661 ....Strip, sheet, or plate 662 ....Heating step follows cooling 663 .....Tempering 664 ....Multiple cooling steps 665 ..Beryllium(Be) or beryllium base alloy 666 ..Magnesium(Mg) or magnesium base alloy 667 ...With working 668 ..Refractory metal (i.e., titanium(Ti), zirconium(Zr), hafnium(Hf), vanadium(V), niobium(Nb), columbium(Cb), tantalum(Ta), chromium(Cr), molybdenum(Mo), tungsten(W)), or alloy base thereof 669 ...Titanium(Ti) or titanium base alloy 670 ....With working 671 .....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 672 ...Zirconium(Zr) or zirconium base alloy 673 ...Tungsten(W) or tungsten base alloy 674 ..Cobalt(Co) or cobalt base alloy 675 ..Nickel(Ni) or nickel base alloy 676 ...With working 677 ....With ageing, solution treating, (i.e., for hardening), precipitation hardening or strengthening 678 ..Noble metals (i.e., silver(Ag), gold(Au), osmium(Os), iridium(Ir), platinum(Pt), ruthenium(Ru), rhodium(Rh), palladium(Pd)) or alloy base thereof 679 ..Copper(Cu) or copper base alloy 680 ...With working above 400'C or nonspecified hot working 681 ....Multiple working steps 682 .....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 683 ....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 684 ...With working 685 ....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 686 ...With ageing, solution treating (i.e., for hardening), precipitation hardening or strengtheningg 687 ...Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent or denitriding agent, etc.) or vacuum 688 ..Aluminum(Al) or aluminum base alloy 689 ...With extruding or drawing 690 ....And ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 691 ...With working above 400'C or nonspecified hot working 692 ....Multiple working steps 693 .....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 694 ....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 695 ...With working 696 ....Multiple working steps 697 .....With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 698 ...With ageing, solution treating (i.e., for hardening), precipitation hardening or strengthening 699 ....Copper(Cu) containing 700 .....Magnesium(Mg) containing 701 ......Zinc(Zn) containing 702 ....Magnesium(Mg) containing 703 ...Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 704 ....In fused state 705 ..Zinc(Zn) or zinc base alloy 706 ..Lead(Pb) or lead base alloy 707 ..Over 50 percent metal, but no base 708 ..Treating with specified agent (e.g., heat exchange agent, protective agent, decarburizing agent, denitriding agent, etc.) or vacuum 709 ...With preserving, recovering or separately handling or treating of the agent 710 ...Utilizing particulate form in fluid bed 711 ...In fused state 712 ...In gaseous state 713 ...In liquid state 714 ..Localized or zone heating or cooling treatment 22 COMPOSITIONS 23 .Fluxing 24 ..Metallic 25 ..Oleaginous 26 ..Inorganic 27 .Heat treating 28 ..Liquid 29 ...Oleaginous 30 ..Carbonaceous 33 BARRIER LAYER STOCK MATERIAL, P-N TYPE 33.1 .With contiguous layer doped to degeneracy 33.2 .With recess, void, dislocation, grain boundaries or channel openings 33.3 .With non-semiconductive coating thereon 33.4 .With contiguous layers of different semiconductive material 33.5 .Having at least three contiguous layers of semiconductive materiall 33.6 ..Including an alloy layer having named impurities 400 STOCK 401 .Radioactive 300 .Magnetic 301 ..Rare earth and transition metal containing 302 ...Boron containing 303 ...Copper containing 304 ..Amorphous 305 ...With inclusion 306 ..Iron base (i.e., ferrous) 307 ...Silicon containing 308 ....Specific crystallographic orientation 309 ....Containing over 1 percent aluminium 310 ...Nickel containing 311 ...Cobalt containing 312 ..Nickel base 313 ..Cobalt base 314 ..Manganese base 315 ..No single metal over 50 percent 316 .Carburized or nitrided 317 ..Nitrided 318 ...Ferrous (i.e., iron base) 319 ..Ferrous (i.e., iron base) 402 .Mechanical memory 403 .Amorphous, i.e., glassy 404 .Directionally solidified 320 .Ferrous (i.e., iron base) 321 ..1.7 percent or more carbon containing (e.g., cast iron) 322 ...Malleabilized 323 ...Chill cast 324 ...Six percent or more group IV, V or VI transition metal containing 325 ..Nine percent or more chromium containing 326 ...Age or precipitation hardened or strengthened 327 ...Eight percent or more total content of nickel and/or manganese containing 328 ..Age or precipitation hardened or strengthed 329 ..Eight percent or more manganese containing 330 ..Beryllium or boron containing 331 ..Rare earth meal containing 332 ..Copper containing 333 ..Chromium containing, but less than 9 percent 334 ...Molybdenum containing 335 ....Nickel containing 336 ..Nickel containing 337 ..Three percent or more manganese containing or containing other transition metal in any amount 405 .Age or precipitation hardened or strengthened 406 ..Magnesium base 407 ..Refractory metal base 408 ..Cobalt base 409 ..Nickel base 410 ...Chromium containing 411 ..Copper base 412 ...Tin containing 413 ...Zinc containing 414 ...Nickel containing 415 ..Aluminum basee 416 ...Copper containing 417 ....Magnesium containing 418 .....Vanadium, niobium or tantalum containing 419 ..Containing over 50 percent metal, but no base metal 420 .Magnesium base 421 .Titanium, zirconium, or hafnium base 422 .Vanadium, niobum, or tantalum base 423 .Chromium, molybdenum, or tungsten base 424 .Manganese base 425 .Cobalt base 426 .Nickel base 427 ..Chromium containing 428 ...Aluminum containing 429 ..Aluminum containing 430 .Noble metal base 431 ..Silver base containing in situ formed oxides 432 .Copper base 433 ..Tin containing 434 ..Zinc containing 435 ..Nickel containing 436 ..Aluminum containing 437 .Aluminum base 438 ..Copper containing 439 ...Magnesium containing 440 ..Magnesium containing 441 .Zinc base 442 .Containing over 50 per cent metal, but no base metal * ****************************** * CROSS-REFERENCE ART COLLECTIONS PERTAINING TO SUBCLASSES 400+ STOCK * ****************************** 900 ION IMPLANTED 901 SURFACE DEPLETED IN AN ALLOY COMPONENT (E.G., DECARBURIZED) 902 HAVING PORTIONS OF DIFFERING METALLURGICAL PROPERTIES OR CHARACTERISTICS 903 .Directly treated with high energy electromagnetic waves or particles (e.g., laser, electron beam) 904 .Crankshaft 905 .Cutting tool 906 .Roller bearing element 907 .Threaded or headed fastener 908 .Spring 909 .Tube 910 .In pattern discontinuous in two dimensions (e.g., checkerboard pattern) * ***************************** * DIGESTS * ***************************** DIG 1 AMORPHOUS SEMICONDUCTOR DIG 2 AMPHOTERIC DOPING DIG 3 ANNEAL DIG 4 ANNEALING, INCOHERENT LIGHT DIG 5 ANTIMONIDES OF GALLIUM OR INDIUM DIG 6 APPARATUS DIG 7 AUTODOPING DIG 8 BI-LEVEL FABRICATION DIG 9 BI-MOS DIG 10 BIPOLAR TRANSISTORS-ION IMPLANTATIONN DIG 11 BIPOLAR TRANSISTORS DIG 12 BONDING E.G., ELECTROSTATIC FOR STRAIN GAUGES DIG 13 BREAKDOWN VOLTAGE DIG 14 CAPACITOR DIG 15 CAPPING LAYER DIG 16 CATALYST DIG 17 CLEAN SURFACES DIG 18 COMPENSATION DOPING DIG 19 CONTACTS OF SILICIDES DIG 20 CONTACTS, SPECIAL DIG 21 CONTINUOUS PROCESS DIG 22 CONTROLLED ATMOSPHERE DIG 23 DEEP LEVEL DOPANTS DIG 24 DEFECT CONTROL-GETTERING AND ANNEALING DIG 25 DEPOSITION MULTI-STEP DIG 26 DEPOSITION THRU HOLE IN MASK DIG 27 DICHLOROSILANE DIG 28 DICING DIG 29 DIFFERENTIAL CRYSTAL GROWTH RATES DIG 30 DIFFUSION DIG 31 DIFFUSION AT AN EDGE DIG 32 DIFFUSION LENGTH DIG 33 DIFFUSION OF ALUMINUM DIG 34 DIFFUSION OF BORON OR SILICON DIG 35 DIFFUSION THRU A LAYER DIG 36 DIFFUSION, NONSELECTIVE DIG 37 DIFFUSION-DEPOSITION DIG 38 DIFFUSIONS-STAGED DIG 39 DISPLACE P-N JUNCTION DIG 40 DOPANTS, SPECIAL DIG 41 DOPING CONTROL IN CRYSTAL GROWTH DIG 42 DOPING, GRADED, FOR TAPERED ETCHING DIG 43 DUAL DIELECTRIC DIG 44 EDGE DIFFUSION UNDER MASK DIG 45 ELECTRIC FIELD DIG 46 ELECTRON BEAM TREATMENT OF DEVICES DIG 47 EMITTER DIP DIG 48 ENERGY BEAM ASSISTED EPI GROWTH DIG 49 EQUIVALENCE AND OPTIONS DIG 50 ETCH AND REFILL DIG 51 ETCHING DIG 52 FACE TO FACE DEPOSITION DIG 53 FIELD EFFECT TRANSISTORS FETS DIG 54 FLAT SHEETS-SUBSTRATES DIG 55 FUSE DIG 56 GALLIUM ARSENIDE DIG 57 GAS FLOW CONTROL DIG 58 GE GERMANIUM DIG 59 GERMANIUM ON SILICON OR GE-SI ON III-V DIG 60 GETTERING DIG 61 GETTERING-ARMORPHOUS LAYERS DIG 62 GOLD DIFFUSION DIG 63 GP II-IV-VI COMPOUNDS DIG 64 GP II-VI COMPOUNDS DIG 65 GP III-V (GENERIC) COMPOUNDS-PROCESSING DIG 66 GP III-V LIQUID PHASE EPITAXY DIG 67 GRADED ENERGY GAP DIG 68 GRAPHITE MASKINGG DIG 69 GREEN SHEETS DIG 70 GUARD RINGS AND CMOS DIG 71 HEATING, SELECTIVE DIG 72 HETEROJUNCTIONS DIG 73 HOLLOW BODY DIG 74 HORIZONTAL MELT SOLIDIFICATION DIG 75 IMIDE RESISTS DIG 76 IMPLANT DIG 77 IMPLANTATION OF SILICON ON SAPPHIRE DIG 78 IMPURITY REDISTRIBUTION BY OXIDATION DIG 79 INERT CARRIER GAS DIG 80 INFRA-RED DIG 81 INSULATORS DIG 82 ION IMPLANTATION FETS/COMS DIG 83 ION IMPLANTATION, GENERAL DIG 84 ION IMPLANTATION OF COMPOUND DEVICES DIG 85 ISOLATED-INTEGRATED DIG 86 ISOLATED ZONES DIG 87 I2L INTEGRATED INJECTION LOGIC DIG 88 J-FET (JUNCTION FIELD EFFECT TRANSISTOR) DIG 89 JOSEPHSON DEVICES DIG 90 LASER ANNEAL DIG 91 LASER BEAM PROCESSING OF FETS DIG 92 LASER BEAM PROCESSING-DIODES OR TRANSISTOR DIG 93 LASER BEAM TREATMENT IN GENERAL DIG 94 LASER BEAM TREATMENT OF COMPOUND DEVICES DIG 95 LASER DEVICES DIG 96 LATERAL TRANSISTOR DIG 97 LATTICE STRAIN AND DEFECTS DIG 98 LAYER CONVERSION DIG 99 LED, MULTICOLOR DIG 100 LIFT-OFF MASKING DIG 101 LIQUID PHASE EPITAXY LPE DIG 102 MASK ALIGNMENT DIG 103 MASK, DUAL FUNCTION E.G., DIFFUSION AND OXIDATION DIG 104 MASK, MOVABLE DIG 105 MASKS, METAL DIG 106 MASKS, SPECIAL DIG 107 MELT DIG 108 MELT BACK DIG 109 MEMORY DEVICES DIG 110 METAL-ORGANIC CVD (RUEHRWEIN TYPE) DIG 111 NARROW MASKING DIG 112 NITRIDATION, DIRECT, OF SILICON DIG 113 NITRIDES OF BORON OR ALUMINUM OR GALLIUM DIG 114 NITRIDES OF SILICON DIG 115 ORIENTATION DIG 116 OXIDATION, DIFFERENTIAL DIG 117 OXIDATION, SELECTIVE DIG 118 OXIDE FILMS DIG 119 PHOSPHIDES OF GALLIUM OR INDIUM DIG 120 PHOTOCATHODES-CS COATED AND SOLAR CELL DIG 121 PLASTIC TEMPERATURE DIG 122 POLYCRYSTALLINE DIG 123 POLYCRYSTALLINE DIFFUSE ANNEAL DIG 124 POLYCRYSTALLINE EMITTER DIG 125 POLYCRYSTALLINE PASSIVATION DIG 126 POWER FETSS DIG 127 PROCESS INDUCED DEFECTS DIG 128 PROTON BOMBARDMENT OF SILICON DIG 129 PULSE DOPING DIG 130 PURIFICATION DIG 131 REACTIVE ION ETCHING RIE DIG 132 RECOIL IMPLANTATION DIG 133 REFLOW OXIDES AND GLASSES DIG 134 REMELT DIG 135 REMOVAL OF SUBSTRATE DIG 136 RESISTORS DIG 137 RESISTS DIG 138 ROUGHENED SURFACE DIG 139 SCHOTTKY BARRIER DIG 140 SCHOTTKY BARRIER CONTACTS DIG 141 SELF-ALIGNMENT COAT GATE DIG 142 SEMICONDUCTOR-METAL-SEMICONDUCTOR DIG 143 SHADOW MASKING DIG 144 SHALLOW DIFFUSION DIG 145 SHAPED JUNCTIONS DIG 146 SHEET RESISTANCE (DOPANT PARAMETERS) DIG 147 SILICIDES DIG 148 SILICON CARBIDE DIG 149 SILICON ON III-V DIG 150 SILICON ON SAPPHIRE SOS DIG 151 SIMULTANEOUS DIFFUSION DIG 152 SINGLE CRYSTAL ON AMORPHOUS SUBSTRATE DIG 153 SOLAR CELLS-IMPLANTATIONS-LASER BEAM DIG 154 SOLID PHASE EPITAXY DIG 155 SOLID SOLUBILITY DIG 156 SONOS DIG 157 SPECIAL DIFFUSION AND PROFILES DIG 158 SPUTTERING DIG 159 STRAIN GAUGES DIG 160 SUPERLATTICE DIG 161 TAPERED EDGES DIG 162 TESTING STEPS DIG 163 THICK-THIN OXIDES DIG 164 THREE DIMENSIONAL PROCESSING DIG 165 TRANSMUTATION DOPING DIG 166 TRAVELING SOLVENT METHOD DIG 167 TWO DIFFUSIONS IN ONE HOLE DIG 168 V-GROOVES DIG 169 VACUUM DEPOSITION (INCLUDES MOLECULAR BEAM EPITAXY DIG 170 VAPOR-LIQUID-SOLID DIG 171 VARISTOR DIG 172 VIDICONS DIG 173 WASHED EMITTER DIG 174 ZENER DIODES