Zipangizo za semiconductor zasintha kudzera m'mibadwo itatu yosintha:
1st Gen (Si/Ge) inakhazikitsa maziko a zamagetsi amakono,
Mbadwo Wachiwiri (GaAs/InP) unadutsa zopinga za optoelectronic ndi ma frequency apamwamba kuti ulimbikitse kusintha kwa chidziwitso,
Gulu lachitatu (SiC/GaN) tsopano likulimbana ndi mavuto a mphamvu ndi zachilengedwe, zomwe zimathandiza kuti mpweya usalowerere komanso kuti mpweya ukhale wa 6G ukhale wabwino.
Kupita patsogolo kumeneku kukuwonetsa kusintha kwa njira yodziwira zinthu kuchokera ku kusinthasintha kupita ku kukhala katswiri pa sayansi ya zinthu zakuthupi.
1. Ma Semiconductor a M'badwo Woyamba: Silicon (Si) ndi Germanium (Ge)
Mbiri Yakale
Mu 1947, Bell Labs adapanga transistor ya germanium, yomwe idayambitsa nthawi ya semiconductor. Pofika m'ma 1950, silicon pang'onopang'ono idalowa m'malo mwa germanium ngati maziko a ma circuits ophatikizidwa (ICs) chifukwa cha stable oxide layer (SiO₂) yake komanso malo ake ambiri osungira zachilengedwe.
Katundu wa Zinthu
ⅠMpata wa bandgap:
Geranium: 0.67eV (mpata wopapatiza, womwe umakhala ndi mphamvu yotulutsa madzi, komanso kutentha kwambiri).
Silicon: 1.12eV (chingwe chosalunjika, choyenera ma logic circuits koma chosatha kutulutsa kuwala).
Ⅱ、Ubwino wa Silicon:
Mwachibadwa amapanga oxide yapamwamba kwambiri (SiO₂), zomwe zimathandiza kupanga MOSFET.
Mtengo wotsika komanso wochuluka (~28% ya kapangidwe kake ka crustal).
Ⅲ、Zoletsa:
Kuyenda kochepa kwa ma elekitironi (1500 cm²/(V·s) yokha), kuletsa magwiridwe antchito apamwamba.
Kulekerera kwa mphamvu yamagetsi/kutentha kochepa (kutentha kwakukulu kogwira ntchito ~150°C).
Mapulogalamu Ofunika
Ⅰ,Ma Circuits Ophatikizidwa (ICs):
Ma CPU, ma memory chips (monga DRAM, NAND) amadalira silicon kuti azitha kusakanikirana bwino.
Chitsanzo: 4004 ya Intel (1971), microprocessor yoyamba yamalonda, idagwiritsa ntchito ukadaulo wa silikoni wa 10μm.
Ⅱ、Zipangizo Zamagetsi:
Ma thyristors oyambirira ndi ma MOSFET otsika mphamvu (monga ma PC power supply) anali opangidwa ndi silicon.
Mavuto ndi Kutha Ntchito
Germanium inatha chifukwa cha kutuluka kwa madzi ndi kusakhazikika kwa kutentha. Komabe, kulephera kwa silicon pa optoelectronics ndi kugwiritsa ntchito mphamvu zambiri kunalimbikitsa kupanga ma semiconductors a m'badwo wotsatira.
Ma Semiconductor a 2-Generation Semiconductors: Gallium Arsenide (GaAs) ndi Indium Phosphide (InP)
Mbiri Yachitukuko
Pakati pa zaka za m'ma 1970 ndi 1980, madera atsopano monga kulankhulana kwa mafoni, maukonde a fiber optical, ndi ukadaulo wa satellite adapanga kufunikira kwakukulu kwa zipangizo zamagetsi zamagetsi zomwe zimagwira ntchito mwachangu komanso moyenera. Izi zidapangitsa kuti ma semiconductors a bandgap monga GaAs ndi InP apite patsogolo.
Katundu wa Zinthu
Kugwira Ntchito kwa Bandgap ndi Optoelectronic:
GaAs: 1.42eV (kusiyapo mwachindunji, kumalola kutulutsa kuwala—kwabwino kwa ma laser/ma LED).
InP: 1.34eV (yoyenera kwambiri kugwiritsa ntchito mafunde aatali, mwachitsanzo, kulumikizana kwa fiber-optic ya 1550nm).
Kuyenda kwa Ma Electron:
GaAs imafika pa 8500 cm²/(V·s), kuposa silicon (1500 cm²/(V·s)), zomwe zimapangitsa kuti ikhale yabwino kwambiri pokonza ma signali a GHz-range.
Zoyipa
lMa substrates osalimba: Ndi ovuta kupanga kuposa silicon; ma wafer a GaAs amawononga ndalama zokwana 10× kuposa.
lPalibe oxide yachilengedwe: Mosiyana ndi SiO₂ ya silicon, GaAs/InP ilibe ma oxide okhazikika, zomwe zimalepheretsa kupanga kwa IC yochuluka kwambiri.
Mapulogalamu Ofunika
lMa Front-Ends a RF:
Ma amplifiers amphamvu oyenda (ma PA), ma transceivers a satellite (monga ma transistors a HEMT ochokera ku GaAs).
lZipangizo zamagetsi:
Ma diode a laser (ma CD/DVD drives), ma LED (ofiira/infrared), ma fiber-optic modules (ma InP lasers).
lMaselo a Dzuwa a Mumlengalenga:
Maselo a GaAs amakwaniritsa bwino 30% (mosiyana ndi ~20% ya silicon), zomwe ndizofunikira kwambiri pa ma satellite.
lZopinga za Ukadaulo
Mitengo yokwera imapangitsa kuti GaAs/InP igwire ntchito zapamwamba kwambiri, zomwe zimawalepheretsa kusintha mphamvu ya silicon mu logic chips.
Ma Semiconductor a M'badwo Wachitatu (Ma Semiconductor Osemphana ndi Bandgap): Silicon Carbide (SiC) ndi Gallium Nitride (GaN)
Madalaivala a Ukadaulo
Kusintha kwa Mphamvu: Magalimoto amagetsi ndi kuphatikiza kwa gridi yamagetsi obwezerezedwanso kumafuna zida zamagetsi zogwira ntchito bwino.
Zosowa Zambiri: Mauthenga a 5G ndi machitidwe a radar amafunika ma frequency apamwamba komanso mphamvu zambiri.
Malo Ovuta Kwambiri: Kugwiritsa ntchito injini za ndege ndi mafakitale kumafuna zipangizo zomwe zimatha kupirira kutentha kopitirira 200°C.
Makhalidwe a Zinthu
Ubwino wa Bandgap:
lSiC: Bandgap ya 3.26eV, mphamvu yamagetsi yosweka 10× kuposa ya silicon, yokhoza kupirira ma voltage opitilira 10kV.
lGaN: Bandgap ya 3.4eV, kuyenda kwa ma elekitironi kwa 2200 cm²/(V·s), kopambana pakugwira ntchito kwa ma frequency apamwamba.
Kusamalira Kutentha:
Mphamvu ya kutentha ya SiC imafika pa 4.9 W/(cm·K), katatu kuposa silicon, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito ndi mphamvu zambiri.
Mavuto a Zinthu Zakuthupi
SiC: Kukula pang'onopang'ono kwa kristalo imodzi kumafuna kutentha kopitilira 2000°C, zomwe zimapangitsa kuti pakhale zolakwika za wafer komanso mitengo yokwera (wafer ya SiC ya mainchesi 6 ndi yokwera mtengo kuposa silicon ndi 20×).
GaN: Ilibe substrate yachilengedwe, nthawi zambiri imafuna heteroepitaxy pa substrate za safiro, SiC, kapena silicon, zomwe zimapangitsa kuti pakhale mavuto osagwirizana.
Mapulogalamu Ofunika
Zamagetsi Zamagetsi:
Ma inverter a EV (monga Tesla Model 3 amagwiritsa ntchito ma SiC MOSFET, zomwe zimapangitsa kuti magwiridwe antchito azigwira ntchito bwino ndi 5–10%).
Malo/ma adapter ochaja mwachangu (zipangizo za GaN zimathandiza kuti 100W+ iyambe kuchaja mwachangu pomwe imachepetsa kukula ndi 50%).
Zipangizo za RF:
Ma amplifiers amphamvu a 5G base station (ma GaN-on-SiC PA amathandizira ma frequency a mmWave).
Rada ya asilikali (GaN imapereka mphamvu ya 5× ya GaAs).
Zipangizo zamagetsi:
Ma LED a UV (zipangizo za AlGaN zomwe zimagwiritsidwa ntchito poyeretsa ndi kuzindikira ubwino wa madzi).
Mkhalidwe wa Makampani ndi Chiyembekezo cha Mtsogolo
SiC ikutsogolera msika wamagetsi amphamvu kwambiri, ndipo ma module a magalimoto apamwamba kale akupanga zinthu zambiri, ngakhale kuti ndalama zake zikupitirirabe kukhala chopinga.
GaN ikukula mofulumira mu zamagetsi zamagetsi (kuchaja mwachangu) ndi kugwiritsa ntchito ma RF, kusintha kukhala ma wafer a mainchesi 8.
Zipangizo zomwe zikubwera monga gallium oxide (Ga₂O₃, bandgap 4.8eV) ndi diamondi (5.5eV) zitha kupanga "m'badwo wachinayi" wa ma semiconductors, zomwe zimakweza malire a voltage kupitirira 20kV.
Kukhalapo ndi Kugwirizana kwa Mibadwo ya Semiconductor
Kugwirizana, Osati Kulowa M'malo:
Silicon ikadali yodziwika bwino mu ma logic chips ndi ma consumer electronics (95% ya msika wapadziko lonse wa semiconductor).
GaAs ndi InP zimadziwika bwino ndi ma niches a high-frequency ndi optoelectronic.
SiC/GaN sizingasinthidwe mu mphamvu ndi mafakitale.
Zitsanzo Zogwirizanitsa Ukadaulo:
GaN-on-Si: Imaphatikiza GaN ndi zinthu zotsika mtengo za silicon kuti zigwiritsidwe ntchito mwachangu komanso RF.
Ma module a SiC-IGBT hybrid: Kupititsa patsogolo kusinthika kwa gridi.
Zochitika Zamtsogolo:
Kuphatikiza kosiyanasiyana: Kuphatikiza zinthu (monga Si + GaN) pa chip imodzi kuti zigwirizane ndi magwiridwe antchito ndi mtengo.
Zipangizo za bandgap yotakata kwambiri (monga Ga₂O₃, diamondi) zitha kuyambitsa ma voltage apamwamba kwambiri (>20kV) ndi ma quantum computing applications.
Kupanga kofanana
GaAs laser epitaxial wafer 4 inchi 6 inchi
Chitsulo cha silicon carbide cha mainchesi 12 cha SIC chokhala ndi mainchesi 300mm chachikulu kukula kwake 4H-N Choyenera kutenthetsa kutentha kwa chipangizo champhamvu kwambiri
Nthawi yotumizira: Meyi-07-2025