(Pāpaʻa SeramikaHana ʻia eWintrusetk)

ʻO nā LED nā mea hana semiconductor electroluminescent e hoʻololi ana ma kahi o 70% a 80% o kā lākou mana i hāʻawi ʻia i ka wela. Inā ʻaʻole hiki ke hoʻokahe pono ʻia kēia wela ma o ka substrate, ʻo ka piʻi ʻana o ka mahana hui e hopena i ka hāʻule ʻana o ka pono quantum kūloko, degradation phosphor, a me ka wikiwiki o ke ola o ka mea hana.

ʻO nā papa kaapuni paʻi kiʻekiʻe metala maʻamau (MCPCBs) he kiʻekiʻe ke kūpaʻa wela ma muli o ke koi ʻana o ka polymer insulation layer ma waena o nā metala a me nā papa kaapuni, e hoʻonui ana iā lākou i ka hiki ʻole ke hoʻokō i nā pono dissipation wela o nā LED mana kiʻekiʻe a kiʻekiʻe. ʻokoʻa,nā pāpaʻi seramikahoʻohui i ka insulation a me ka thermal conductivity, e hoʻopau ana i ke kūpaʻa wela interfacial a lilo i ʻano hiki ʻole ke pale ʻia i ka ulu ʻana o ka ʻoihana.

1. Alumina (Al2O3)

ʻO ka alumina ceramic ka mea paʻa paʻa a hoʻohana maʻamau i kēia manawa. Hōʻike ia i ka conductivity thermal mau o 25-30 W/m.K, ka ikaika mechanical maikaʻi, a me nā hiʻohiʻona dielectric maikaʻi loa.

Pono:

• ʻenehana makua

• Ka ikaika mechanical kiʻekiʻe

• ʻO ka hoʻokaʻawale maikaʻi

• Koina hoʻokūkū kiʻekiʻe

Nā noi: Hoʻohana nui ʻia i nā kukui maʻamau, nā kukui uila uila o nā mea kūʻai aku, a me nā modula puʻupuʻu mana waena.

2. Aluminum Nitride (AlN)

No ka COB mana kiʻekiʻe a me ke kukui laser pae kaʻa, kū i waho ʻo AlN ma muli o kona hoʻoili wela kiʻekiʻe loa.

Pono:

• Hiki i ka conductivity wela i ka 170-230 W/m.K, ma kahi o ʻewalu mau manawa o ka alumina.

• Hoʻopili maikaʻi ʻia ka coefficient hoʻonui wela me nā mea semiconductor e like me ka silicon a me ka silicon carbide, e hoʻomaikaʻi nui ana i ka paʻa mechanical o nā mea hana i nā kaiapuni kaʻa wela.

Nā noi: ʻO nā kukui uila, nā mea hana mana kiʻekiʻe, a me nā lako hoʻomaʻemaʻe ultraviolet hohonu UVC.

3. Silicon Nitride (Si3N4)

Hoʻopuka ka Silicon nitride i ka paʻakikī ʻenehana o ka palupalu maoli o nā seramika kuʻuna, nona ka paʻakikī haʻi kiʻekiʻe a me ka ikaika flexural.

Pono:

• Paʻa i ka hopena

• Kūleʻa haʻalulu

• Maikaʻi ka thermal conductivity

Nā noi: ʻO nā kukui o ka pūʻali koa, nā lako optoelectronic aerospace, a me nā modula LED ʻoihana e koi ana i ka hilinaʻi kiʻekiʻe loa.