(Ceramic SubstrateProduced byWintrusetk)
MaLED ma electroluminescent semiconductor madivayiri anoshandura anenge 70% kusvika 80% yesimba rawo raakapihwa mukupisa. Kana kupisa uku kusingakwanisi kudonhedzwa zvakanaka kuburikidza ne substrate, kuwedzera kwekushisa kwejunction kunoguma nekudonha kwemukati quantum kunyatsoshanda, phosphor degradation, uye kukurumidza kwehupenyu hwechigadzirwa.
Traditional metal-core printed circuit boards (MCPCBs) ane high thermal resistance nekuda kweinodiwa polymer insulation layer pakati pesimbi necircuit layers, zvichiita kuti vawedzere kusakwanisa kusangana nezvinodiwa zvekubvisa kupisa kwesimba repamusoro-soro uye e-ultra-high-simba maLED. Mukusiyana,ceramic substratesbatanidza kusungirira uye kupisa kwekupisa, kubvisa kupindirana kwekupisa kupisa uye kuve maitiro asingadzivisike mukushanduka kweindasitiri.
1. Alumina (Al2O3)
Alumina ceramic parizvino ndiyo yakasimbiswa uye inonyanya kushandiswa substrate material. Iyo inoratidza inopindirana yekupisa conductivity ye25-30 W / m.K, yakanaka mechanical simba, uye yakanakisa dielectric maitiro.
Zvakanakira:
Applications: Inoshandiswa zvakanyanya mukuvhenekesa kwese, mutengi zvemagetsi backlighting, uye epakati-simba rekurongedza modules.
2. Aluminium Nitride (AlN)
Pa COB ine simba repamusoro uye mota-giredhi laser mwenje, AlN inomira zvakanaka nekuda kwekunyanya kupisa kwayo.
Zvakanakira:
Thermal conductivity inosvika 170-230 W/m.K, ingangoita kasere iyo yealumina.
Thermal yekuwedzera coefficient inoenderana zvakanyanya ne semiconductor zvinhu zvakaita sesilicon uye silicon carbide, inovandudza zvakanyanya kugadzikana kwemagetsi emidziyo munzvimbo dzinopisa bhasikoro.
Applications: Magetsi emotokari, mapurojekita emagetsi akakwira, uye UVC yakadzika ultraviolet yekuchenesa michina.
3. Silicon Nitride (Si3N4)
Silicon nitride inogadzirisa dambudziko rehunyanzvi hwekuzvarwa brittleness kwechinyakare ceramics, iine yakanyanya kukwirira kuputsika kusimba uye kushanduka kwesimba.
Zvakanakira:
Applications: Military-giredhi mwenje, aerospace optoelectronic zvishandiso, uye maindasitiri-giredhi LED modules inoda kuvimbika kwakanyanya.
