Kayan semiconductor sun samo asali ta hanyar tsararraki uku masu canzawa:
Na farko (Si/Ge) ya kafa harsashin kayan lantarki na zamani,
Nau'i na 2 (GaAs/InP) ya karya shingen optoelectronic da na mita mai yawa don ƙarfafa juyin juya halin bayanai,
Tsarin ƙarni na 3 (SiC/GaN) yanzu yana magance ƙalubalen makamashi da muhalli mai tsanani, wanda ke ba da damar rashin tsaka-tsakin carbon da zamanin 6G.
Wannan ci gaban ya nuna canjin yanayin aiki daga iyawar aiki zuwa ƙwarewa a fannin kimiyyar kayan duniya.
1. Masu haɗa semiconductor na ƙarni na farko: Silicon (Si) da Germanium (Ge)
Tarihin Baya
A shekarar 1947, Bell Labs ta ƙirƙiro transistor na germanium, wanda hakan ya nuna farkon zamanin semiconductor. A shekarun 1950, silicon a hankali ya maye gurbin germanium a matsayin tushen da'irori masu haɗawa (ICs) saboda layurar oxide mai ƙarfi (SiO₂) da kuma tarin ajiyar halitta.
Kayayyakin Kayan Aiki
ⅠBandgift:
Germanium: 0.67eV (ƙarancin ramin da ke kewaye, mai yuwuwar fitar da wutar lantarki, rashin aikin zafin jiki mai kyau).
Silicon: 1.12eV (bandgap a kaikaice, ya dace da da'irar dabaru amma ba zai iya fitar da haske ba).
Ⅱ,Amfanin Silicon:
A dabi'ance yana samar da ingantaccen oxide (SiO₂), wanda ke ba da damar ƙera MOSFET.
Mai rahusa kuma yana da yalwar ƙasa (kimanin kashi 28% na abubuwan da ke cikin ɓawon).
Ⅲ,Iyakoki:
Ƙarancin motsi na lantarki (1500 cm²/(V·s) kawai), yana hana aikin mita mai yawa.
Rashin juriya ga ƙarfin lantarki/zafin jiki (mafi girman zafin aiki. ~150°C).
Manhajoji Masu Mahimmanci
Ⅰ,Da'irori Masu Haɗaka (ICs):
CPUs, kwakwalwan ƙwaƙwalwa (misali, DRAM, NAND) sun dogara ne akan silicon don yawan haɗin kai mai yawa.
Misali: Kamfanin Intel 4004 (1971), na farko a fannin sarrafa bayanai na kasuwanci, ya yi amfani da fasahar silicon mai girman 10μm.
Ⅱ,Na'urorin Wutar Lantarki:
Na'urorin farko na thyristor da MOSFETs masu ƙarancin wutar lantarki (misali, kayan wutar lantarki na PC) an yi su ne da silicon.
Kalubale da tsufa
An dakatar da Germanium saboda zubewar iska da rashin daidaiton zafi. Duk da haka, iyakokin silicon a cikin optoelectronics da aikace-aikacen wutar lantarki mai ƙarfi sun haifar da haɓaka na'urorin semiconductors na zamani.
Masu haɗa semiconductor na ƙarni na biyu: Gallium Arsenide (GaAs) da Indium Phosphide (InP)
Bayanin Ci Gaba
A shekarun 1970-1980, fannoni masu tasowa kamar sadarwa ta wayar hannu, hanyoyin sadarwa na fiber optic, da fasahar tauraron dan adam sun haifar da buƙatar kayan optoelectronic masu inganci da yawan mita. Wannan ya haifar da ci gaban na'urorin semiconductor kai tsaye kamar GaAs da InP.
Kayayyakin Kayan Aiki
Aikin Bandgift da Optoelectronic:
GaAs: 1.42eV (bandgap kai tsaye, yana ba da damar fitar da haske—ya dace da laser/LEDs).
InP: 1.34eV (ya fi dacewa da aikace-aikacen tsawon zango, misali, sadarwa ta fiber-optic 1550nm).
Motsi na Electron:
GaAs yana cimma 8500 cm²/(V·s), wanda ya fi silicon (1500 cm²/(V·s)) nesa, wanda hakan ya sa ya zama mafi kyau ga sarrafa siginar kewayon GHz.
Rashin amfani
lAbubuwan da suka yi rauni: Ya fi wahalar ƙera su fiye da silicon; wafers ɗin GaAs sun fi 10x tsada.
lBabu sinadarin oxide na asali: Ba kamar SiO₂ na silicon ba, GaAs/InP ba su da sinadarin oxides masu ƙarfi, wanda hakan ke hana ƙera IC mai yawa.
Manhajoji Masu Mahimmanci
lƘarshen Gaba na RF:
Masu ƙara ƙarfin lantarki na wayar hannu (PAs), masu karɓar rediyo na tauraron ɗan adam (misali, masu karɓar rediyo na HEMT da ke tushen GaAs).
lInjin lantarki:
Na'urorin Laser diode (CD/DVD drives), LEDs (ja/infrared), na'urorin fiber-optic (InP lasers).
lKwayoyin Rana na Sararin Samaniya:
Kwayoyin GaAs suna samun inganci kashi 30% (idan aka kwatanta da ~20% ga silicon), wanda yake da mahimmanci ga tauraron dan adam.
lMatsalolin Fasaha
Babban farashi yana iyakance GaAs/InP ga aikace-aikacen zamani, yana hana su maye gurbin rinjayen silicon a cikin guntuwar dabaru.
Masu haɗa Semiconductor na ƙarni na uku (Masu haɗa Semiconductor masu faɗi): Silicon Carbide (SiC) da Gallium Nitride (GaN)
Masu Tukin Fasaha
Juyin Juya Halin Makamashi: Motocin lantarki da haɗin hanyoyin samar da makamashi masu sabuntawa suna buƙatar na'urorin samar da wutar lantarki masu inganci.
Bukatun Yawan Mitoci: Tsarin sadarwa na 5G da tsarin radar suna buƙatar mitoci masu yawa da yawan wutar lantarki.
Muhalli Mai Tsanani: Aikace-aikacen jiragen sama da na masana'antu suna buƙatar kayan da za su iya jure yanayin zafi sama da 200°C.
Halayen Kayan Aiki
Fa'idodin Faɗin Bandgap:
lSiC: Bandgip na 3.26eV, ƙarfin filin lantarki mai lalacewa 10x na silicon, mai iya jure ƙarfin lantarki sama da 10kV.
lGaN: Bandgift na 3.4eV, motsi na electron na 2200 cm²/(V·s), ya yi fice a cikin aiki mai yawan mita.
Gudanar da Zafin Jiki:
Lantarkin zafin SiC ya kai 4.9 W/(cm·K), sau uku ya fi silicon, wanda hakan ya sa ya dace da amfani da shi a manyan ayyuka.
Kalubalen Kayan Aiki
SiC: Girman lu'ulu'u ɗaya a hankali yana buƙatar yanayin zafi sama da 2000°C, wanda ke haifar da lahani ga wafer da tsada mai yawa (wafer SiC mai inci 6 ya fi tsada 20× fiye da silicon).
GaN: Ba shi da wani abu na halitta, wanda galibi yana buƙatar heteroepitaxy akan sapphire, SiC, ko silicon substrates, wanda ke haifar da matsalolin rashin daidaito tsakanin lattice.
Manhajoji Masu Mahimmanci
Lantarki Mai Lantarki:
Injin juyawar EV (misali, Tesla Model 3 yana amfani da SiC MOSFETs, yana inganta inganci da 5-10%).
Tashoshin/adafta masu caji da sauri (Na'urorin GaN suna ba da damar caji mai sauri na 100W+ yayin da suke rage girman da 50%).
Na'urorin RF:
Amplifiers na ƙarfin tashar tushe 5G (GaN-on-SiC PAs suna goyan bayan mitoci na mmWave).
Radar soja (GaN tana bayar da ƙarfin GaAs 5×).
Injin lantarki:
LEDs na UV (kayayyakin AlGaN da ake amfani da su wajen tsaftace muhalli da kuma gano ingancin ruwa).
Matsayin Masana'antu da Hasashen Nan Gaba
SiC ta mamaye kasuwar wutar lantarki mai ƙarfi, tare da kayan aikin mota waɗanda suka riga sun kasance cikin yawan samarwa, kodayake farashi ya kasance cikas.
GaN yana faɗaɗa cikin sauri a cikin na'urorin lantarki na masu amfani (caji mai sauri) da aikace-aikacen RF, yana canzawa zuwa wafers mai inci 8.
Kayayyakin da ke fitowa kamar gallium oxide (Ga₂O₃, bandgap 4.8eV) da lu'u-lu'u (5.5eV) na iya samar da "ƙarni na huɗu" na semiconductors, suna tura iyakokin ƙarfin lantarki fiye da 20kV.
Zaman tare da Hadin gwiwa tsakanin tsararrakin Semiconductor
Daidaito, Ba Sauyawa Ba:
Silicon ya ci gaba da kasancewa mafi rinjaye a cikin kwakwalwan dabaru da na'urorin lantarki na masu amfani (kashi 95% na kasuwar semiconductor ta duniya).
GaAs da InP sun ƙware a fannin manyan na'urori masu amfani da wutar lantarki da kuma na'urorin lantarki.
Ba za a iya maye gurbin SiC/GaN a fannin makamashi da aikace-aikacen masana'antu ba.
Misalan Haɗin Fasaha:
GaN-on-Si: Yana haɗa GaN da ƙananan silicon don caji cikin sauri da aikace-aikacen RF.
Modules na haɗin SiC-IGBT: Inganta ingancin canza grid.
Yanayin da ke tafe:
Haɗin kai iri-iri: Haɗa kayan aiki (misali, Si + GaN) akan guntu ɗaya don daidaita aiki da farashi.
Kayan da ke da faɗi sosai (misali, Ga₂O₃, lu'u-lu'u) na iya ba da damar yin amfani da ƙarfin lantarki mai yawa (>20kV) da aikace-aikacen kwamfuta na kwantum.
Samarwa mai alaƙa
Wafer mai siffar laser na GaAs mai inci 4 inci 6
Inci 12 na SIC substrate silicon carbide prime grade diamita 300mm babba girman 4H-N Ya dace da watsa zafi mai ƙarfi na na'urar
Lokacin Saƙo: Mayu-07-2025