LEDs suna haskaka duniyarmu, kuma a zuciyar kowane babban aikin LED ya ta'allaka neepitaxial wafer- wani abu mai mahimmanci wanda ke bayyana haske, launi, da ingancinsa. Ta hanyar ƙware da ilimin kimiyyar haɓakar epitaxial, masana'antun suna buɗe sabbin damar don ceton makamashi da hanyoyin samar da haske mai tsada.
1. Dabarun Ci Gaban Wayo don Ƙarfafa Ƙarfafawa
Daidaitaccen tsari na haɓaka matakai biyu na yau, kodayake yana da tasiri, yana iyakance ƙima. Yawancin reactors na kasuwanci suna girma wafers shida kawai a kowane tsari. Masana'antar tana juyawa zuwa:
- Maɗaukakin ƙarfi reactorswanda ke ɗaukar ƙarin wafers, yanke farashi da haɓaka kayan aiki.
- Injunan wafer guda masu sarrafa kansa sosaidomin m daidaito da kuma repeatability.
2. HVPE: Hanya mai sauri zuwa Maɗaukaki masu inganci
Hydride Vapor Phase Epitaxy (HVPE) cikin hanzari yana samar da yadudduka na GaN mai kauri tare da ƙarancin lahani, cikakke azaman abubuwan da ake amfani da su don sauran hanyoyin haɓaka. Waɗannan fina-finai na GaN masu 'yanci na iya yin hamayya da guntuwar GaN. Kama? Kauri yana da wuyar sarrafawa, kuma sinadarai na iya lalata kayan aiki akan lokaci.
3. Ci gaban Lateral: Lu'ulu'u masu laushi, Haske mafi kyau
Ta hanyar tsara wafer a hankali tare da abin rufe fuska da tagogi, masana'antun suna jagorantar GaN don girma ba kawai sama ba, amma a gefe kuma. Wannan "epitaxy na gefe" yana cike giɓi tare da ƙarancin lahani, yana haifar da mafi ƙarancin tsari na kristal don manyan LEDs masu inganci.
4. Pendeo-Epitaxy: Barin Lu'ulu'u Tayi Yawo
Ga wani abu mai ban sha'awa: injiniyoyi suna girma GaN akan dogayen ginshiƙai sannan su bar shi ya “gada” akan sarari mara komai. Wannan ci gaban da ke iyo yana kawar da yawancin nau'ikan da ke haifar da rashin daidaiton kayan aiki, yana haifar da yadudduka na crystal waɗanda suka fi ƙarfi da tsafta.
5. Haskakawa UV Spectrum
Sabbin abubuwa suna tura hasken LED zurfi cikin kewayon UV. Me yasa wannan ya shafi? Hasken UV na iya kunna phosphor masu haɓakawa tare da inganci mafi girma fiye da zaɓuɓɓukan gargajiya, buɗe ƙofar zuwa farar LEDs na gaba waɗanda ke da haske kuma mafi ƙarfi.
6. Multi-Quantum Well Chips: Launi daga ciki
Maimakon hada LEDs daban-daban don yin farin haske, me yasa ba a girma duka a daya ba? Multi-quantum rijiyar (MQW) kwakwalwan kwamfuta suna yin hakan ne ta hanyar haɗa yadudduka waɗanda ke fitar da tsayi daban-daban, suna haɗa haske kai tsaye a cikin guntu. Yana da inganci, ƙarami, kuma kyakkyawa—ko da yake mai rikitarwa don samarwa.
7. Recycling Light tare da Photonics
Sumitomo da Jami'ar Boston sun nuna cewa tara kayan kamar ZnSe da AlInGaP akan ledojin shuɗi na iya "sake fa'ida" photon zuwa cikakkiyar farin bakan. Wannan dabarar shimfidawa mai kaifin baki tana nuna kyama mai ban sha'awa na kimiyyar kayan aiki da kuma photonics a wurin aiki a cikin ƙirar LED ta zamani.
Yadda ake yin Wafers Epitaxial LED
Daga substrate zuwa guntu, ga sauƙaƙe tafiya:
- Matakin Girma:Substrate → Design → Buffer → N-GaN → MQW → P-GaN → Anneal → Inspection
- Matakin Kera:Masking → Lithography → Etching → N/P Electrodes → Dicing → Rarraba
Wannan ingantaccen tsari yana tabbatar da kowane guntu na LED yana ba da aikin da zaku iya dogara dashi-ko kunna allonku ko garin ku.
Lokacin aikawa: Jul-08-2025