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5F052 | Recrystallization technology | |
H01L21/18 -21/20;21/34-21/36;21/84 |
H01L21/18-21/20;21/34-21/36;21/84 | AA | AA00 RECRYSTALLIZATION MEANS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | ||||
. Recrystallization by beam irradiation | . . Laser beams | . . Electron beams | . . Ion beams | . . Neutral particle beams | . . Others | |||||||
AA11 | AA12 | AA13 | AA14 | AA15 | AA17 | AA18 | ||||||
. Heating means other than beam irradiation | . . Resistance heating | . . . Heaters that do not make contact with substrates | . . . . Rod-like heaters | . . . . Hot wires | . . . Electric furnace heating | . . . Heating from susceptors | ||||||
AA22 | AA23 | AA24 | AA25 | AA26 | AA27 | AA28 | AA30 | |||||
. . High frequency induction heating | . . . Zone melting (ZM) | . . Lamps | . . . Flash lamps | . . . . Zone melting (ZM) | . . . Continuously lit lamps | . . . . Zone melting (ZM) | . . Heating using sunlight | |||||
BA | BA00 BEAM IRRADIATION PROCEDURES |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | |
. Beam scanning | . . Overlap scanning | . . Rotary scanning | . . Beam cross-sectional shapes | . . . Double beams | . . . Donut-shaped beams | . . . Linear beams | . . . Crescent-shaped and arrow-shaped beams | . . . Pseudo-linear electron beams | . . . Scanning using birefringent plates | |||
BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | BA20 | ||||
. . . Scanning using multiple irradiation sources | . . . Scanning using mask plates | . . Modification of scanning speed | . . Multiple beams | . . . Two or more types of laser beams | . . . Two or more types of electron beams | . . . Combined use of electron beams and laser beams | . . Scanning system designs | . Batch irradiation | ||||
BB | BB00 TYPES OF IRRADIATING BEAMS |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB09 | BB10 | ||
. Argon lasers | . Nd-YAG lasers | . . Q switch pulses | . . Continuous waves | . Ruby lasers | . CO2 lasers | . Other lasers | . Pulsed electron beams | . Continuous wave electron beams | ||||
CA | CA00 RECRYSTALLIZATION ISSUES |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
. Prevention of distortion and warping | . Prevention of contamination and substrate surface cleaning | . Strengthening of adhesive force (i.e., prevention of separation) | . Increase in regions of monocrystallization | . Local cooling | . Ability to radiate heat | . Uniform annealing | . Leveling | . Avoidance of the effects of and damage due to heating in lower layers | . Improved throughput | |||
DA | DA00 RECRYSTALLIZED LAYER MATERIALS |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA08 | DA09 | DA10 | ||
. Silicon (Si) | . . a-Si:H films | . Germanium (Ge) | . Groups III-V | . . Gallium arsenide (GaAs) | . Groups II-VI | . Silicides | . Insulators | . Others | ||||
DB | DB00 METHODS OF DEPOSITING RECRYSTALLIZED LAYERS |
DB01 | DB02 | DB03 | DB04 | DB05 | DB06 | DB07 | DB08 | DB09 | DB10 | |
. Chemical vapor deposition (CVD) | . . Low pressure chemical vapor deposition | . . Plasma chemical vapor deposition | . Vapor deposition | . . Simple vapor deposition | . . . Molecular beam epitaxy (MBE) | . . Sputtering | . Reactive sputtering | . Film deposition from a liquid phase | . Others | |||
EA | EA00 COMMON FEATURES |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | ||||
. Capping technology | . . Characteristic cap materials | . . Characteristic layer structures | . . . Multi-layer caps | . . . . Polysilicon caps | . . . Reflection-suppressing films | . . . . Stripe-type films | ||||||
EA11 | EA12 | EA13 | EA15 | EA16 | ||||||||
. Designs involving backing layers | . . Two or more insulator film layers | . . Variants with metal layers interposed | . Processes characterized by pre-treatment | . Processes characterized by after-treatment | ||||||||
FA | FA00 SEEDLESS RECRYSTALLIZATION TECHNOLOGY |
FA01 | FA02 | FA03 | FA04 | FA05 | FA06 | FA07 | FA08 | |||
. Control of crystal nuclei | . . Planar designs | . . . Necking | . . Local cooling | . . Conversion to amorphous material | . . Imparting of a high concentration of impurities | . . Conversion to thin films | . . Recrystallization onto a liquid phase (i.e., rheotaxis) | |||||
FA12 | FA13 | FA14 | FA15 | FA16 | FA17 | FA19 | ||||||
. . Edge effect epitaxy | . . . Cyclic groove formation | . . . Acyclic groove formation | . . . . Formation of a single groove | . . . Methods of covering indented sections | . . . Flow fill-in methods for indented sections | . . Complexing and multistep processing | ||||||
FA21 | FA22 | FA23 | FA24 | FA25 | FA26 | FA27 | FA28 | FA29 | ||||
. Selective technology | . . Mesa islands | . . Local oxidation of silicon (i.e., LOCOS) islands | . . Selective doping | . . Use of reflective plates (including reflective films) | . . Use of differences in thickness of backing layers | . . Use of reflection-suppressing films | . . Selective scanning | . . Use of filters | ||||
GA | GA00 TECHNOLOGY FOR RECRYSTALLIZATION WITH SEEDS |
GA01 | GA02 | |||||||||
. Substrate seeding technology | . Use of separate seeds | |||||||||||
GB | GB00 LATERAL SEEDING TECHNOLOGY |
GB01 | GB02 | GB03 | GB04 | GB05 | GB06 | GB07 | GB08 | GB09 | ||
. Characteristic structure in each portion | . . Characteristic mode of film processing | . . Seed structure designs | . . . Sheets over projecting sections | . . . Insertion of metal or silicide layers | . . Characteristic opening shapes | . . . Tapered variants | . . Characteristic cap layer in the seeded portion | . . Selection of substrate face orientation | ||||
GB11 | GB13 | GB14 | GB16 | |||||||||
. Characteristic irradiating or heating means | . Measures against excessive heating | . . Characteristic structure | . Layer separating structures | |||||||||
GC | GC00 VERTICAL SEEDING TECHNOLOGY |
GC01 | GC02 | GC03 | GC04 | GC05 | GC06 | GC07 | GC08 | GC09 | GC10 | |
. Semiconductors and semiconductor monocrystals | . . Use of intrinsic layer substrates | . . . Silicon substrates | . . . Gallium arsenide (GaAs) substrates | . Semiconductor and insulator monocrystals | . . Sapphires | . . Spinel | . . Magnesium oxide (MgO) | . . Calcium fluoride (CaF2) | . . Others | |||
HA | HA00 COMPLEXING AND MULTISTEP PROCESSING |
HA01 | HA03 | HA04 | HA05 | HA06 | HA07 | HA08 | ||||
. Multistep processing | . Complexing with other technology | . . Complexing with separation by implanted oxygen (SIMOX) technology | . . Complexing with full isolation by oxidized silicon (FIPOS) technology | . . Complexing with ion implantation | . . Complexing with diffusion | . . Recrystallization with epitaxy | ||||||
JA | JA00 APPLICATIONS TO DEVICES |
JA01 | JA02 | JA03 | JA04 | JA05 | JA06 | JA07 | JA08 | JA09 | JA10 | |
. Metal-oxide semiconductor field effect transistors (MOSFET) | . . Bottom layer gates | . . Double gates | . . Complementary metal-oxide semiconductors (CMOS) | . Bipolar transistors | . Resistance elements | . Diodes | . . Photodiodes | . Solar cells | . Others | |||
JB | JB00 STRUCTURE OF ALL PORTIONS |
JB01 | JB02 | JB03 | JB04 | JB05 | JB06 | JB07 | JB08 | JB09 | JB10 | |
. Characteristic connection structure | . . Direct connections | . . . Internal connections | . . . . Metals | . . . . Impurities | . . . Side connections | . . . . Stepped connections | . . Indirect connections | . Heat radiation and shielding | . Leveled structure | |||
KA | KA00 DIRECT FILM FORMATION TECHNOLOGY |
KA01 | KA02 | KA03 | KA05 | KA06 | KA07 | KA08 | KA10 | |||
. Lattice matching technology | . . Superlattice buffers | . Superlattice layers (i.e., active regions) | . General film formation technology | . Two types of technology to form films | . . Vapor phase growth and liquid phase growth | . . Vapor phase growth and vapor deposition | . Others | |||||
KB | KB00 BONDING TYPES |
KB01 | KB02 | KB04 | KB05 | KB06 | KB09 | |||||
. Semiconductor-to-semiconductor bonding | . . Hetero structures | . Use of interposed insulator layers | . . Oxide films only | . . Use of films other than oxide films | . Bonding apparatuses |