(I-Ceramic SubstrateIkhiqizwe nguWintrusetk)
Ama-LED angamadivayisi e-electroluminescent semiconductor aguqula cishe u-70% kuya ku-80% wamandla awo anikeziwe abe ukushisa. Uma lokhu kushisa kungakwazi ukukhanywa kahle nge-substrate, ukunyuka kwezinga lokushisa lokuhlangana kuzoholela ekwehleni kokusebenza kahle kwe-quantum yangaphakathi, ukuwohloka kwe-phosphor, kanye nokusheshisa kwesikhathi sokuphila kwedivayisi.
Amabhodi wesekethe aphrintiwe ensimbi-core (ama-MCPCB) endabuko anokumelana nokushisa okuphezulu ngenxa yongqimba oludingekayo lokufakwa kwe-polymer phakathi kwezingqimba zensimbi nezesekethe, okuwenza angakwazi ukuhlangabezana nezidingo zokukhipha ukushisa zamandla aphezulu kanye nama-LED anamandla amakhulu. Ngokuphambene,ama-substrates e-ceramichlanganisa ukufakwa kwe-insulation kanye ne-thermal conductivity, ukuqeda ukumelana nokushisa okuphakathi kobuso futhi kube umkhuba ongenakugwemeka ekuziphendukeleni kwembonini.
1. Alumina (Al2O3)
I-Alumina ceramic okwamanje iyinto etholakala kakhulu futhi esetshenziswa kakhulu. Ibonisa ukuguquguquka kwe-thermal okungaguquki okungu-25-30 W/m.K, amandla amahle emishini, nezici ezinhle kakhulu ze-dielectric.
Izinzuzo:
Ubuchwepheshe obuvuthiwe
Amandla aphezulu emishini
I-insulation enhle kakhulu
Izindleko ezincintisana kakhulu
Izicelo: Isetshenziswa kakhulu ekukhanyeni okuvamile, ukukhanyisa kabusha kwe-electronics yabathengi, namamojula wokupakisha wamandla amaphakathi.
2. Aluminium Nitride (AlN)
Ngokukhanya kwe-COB yamandla aphezulu kanye ne-automotive-grade laser lighting, i-AlN iphuma phambili ngenxa ye-thermal conductivity ephezulu kakhulu.
Izinzuzo:
I-Thermal conductivity ifinyelela ku-170-230 W/m.K, cishe izikhathi eziyisishiyagalombili kune-alumina
I-Thermal Expansion Coefficient ihambisana kakhulu nezinto ze-semiconductor ezifana ne-silicon ne-silicon carbide, ithuthukisa kakhulu ukuqina kwemishini yamadivayisi ezindaweni zamabhayisikili ashisayo.
Izicelo: Izibani zangaphambili zezimoto, amaphrojekhtha anamandla amakhulu ezimbonini, kanye nemishini yokuhlanza i-UVC ejulile ye-ultraviolet.
3. I-Silicon Nitride (Si3N4)
I-Silicon nitride ibhekana nenselelo yobuchwepheshe yobulukhuni bemvelo bezinto zobumba zomdabu, ezinokuqina okuphezulu kakhulu kokuphuka namandla aguqukayo.
Izinzuzo:
Izicelo: Izibani zezinga lezempi, imishini ye-optoelectronic ye-aerospace, namamojula e-LED ebangeni lezimboni adinga ukwethembeka okuphezulu kakhulu.
