Aluminum nitride ceramic PCB

 

ʻO ka alumini nitride ceramic kahi ʻano mea seramika me ka nitride aluminika (AIN) ma ke ʻano he aniani nui. ʻO ke kaʻapuni metala ma luna o ka substrate seramika nitride aluminika he substrate seramika nitride aluminika.

1. ʻO ka alumini nitride ceramic he ceramic me ka alumini nitride (AIN) ma ke ʻano he crystalline nui.

2. Lawe ʻo Ain crystal i (ain4) tetrahedron ma ke ʻano he structural unit, covalent bond compound, loaʻa i ka wurtzite structure a no ka ʻōnaehana hexagonal.

3. Ka haku mele ai65 81%,N34. 19%, umekaumaha kiko’ī 3.261g/cm3, keʻokeʻo a hina keʻokeʻo, hoʻokahi aniani ʻeleʻele ʻole a ʻākala, sublimation a me ka decomposition wela ma lalo o ke kaomi maʻamau ʻo 2450 ℃.

4. ʻO ka alumini nitride ceramic kahi mea wela wela me ka coefficient o ka hoʻonui wela o (4.0-6.0) x10 (- 6) / ℃.

5. ʻO ka polycrystalline ain he thermal conductivity o 260W / (mk), ʻo ia ka 5-8 mau manawa kiʻekiʻe ma mua o ka alumina, no laila, maikaʻi ke kūpaʻa haʻalulu wela a hiki ke kū i ka wela kiʻekiʻe o 2200 ℃.

6. ʻO ka alumini nitride ceramics he maikaʻi ke kū’ē i ka corrosion.

 

 

 

He maikaʻi nā waiwai kiʻekiʻe a me ka uila, a he mau waiwai i loaʻa ʻole i nā substrates organik, e like me ka conductivity thermal kiʻekiʻe, ke kūpaʻa kemika maikaʻi a me ke kūpaʻa wela. He mea hoʻopihapiha kūpono ia no ka hanauna hou o nā kaapuni hoʻohui nui a me nā modula uila mana.

Ke ulu wikiwiki nei nā mea hana semiconductor e koi ʻia e nā hale noho a me nā mea hana ʻoihana, me ka hoʻohana ʻana i ka mana kiʻekiʻe, ka hoʻohui ʻana kiʻekiʻe a me ka modularization, ke kumu palekana kiʻekiʻe a me ka hana maʻalahi. No laila, ʻo ka hoʻomākaukau ʻana i nā mea conductivity thermal kiʻekiʻe he pilikia koʻikoʻi e hoʻoholo ʻia i kēia manawa. ʻO nā seramika i hoʻokumu ʻia ma ka nitride aluminika loaʻa nā waiwai piha kūpono loa. A ma hope o nā hoʻokolohua like ʻole, ua ʻike ʻia i ka ʻike o ka poʻe, a ʻo ke kahua noi nui loa nā huahana LED kiʻekiʻe.
E like me ke ala nui o ka kahe wela, he mea nui ka alumini nitride ceramic circuit board i ka palapala hoʻopili o ka LED mana kiʻekiʻe. He hana koʻikoʻi loa ia i ka hoʻomaikaʻi ʻana i ka maikaʻi o ka hoʻoheheʻe ʻana i ka wela, e hōʻemi ana i ka mahana o ka hui ʻana a me ka hoʻomaikaʻi ʻana i ka hilinaʻi a me ke ola lawelawe o ka hāmeʻa.

Hoʻokaʻawale ʻia ka papa kaapuni hoʻoluʻu LED i: LED kaapuni kaapuni a me ka ʻōnaehana kaapuni. Hoʻohana nui ʻia ʻo LED grain circuit board e like me ke ʻano o ka hoʻokuʻu ʻana i ka ikehu wela ma waena o ka palaoa LED a me ka papa kaapuni ʻōnaehana, i hui pū ʻia me ka palaoa LED ma ke kaʻina o ke kaha kiʻi uea, eutectic a i ʻole cladding.

Me ka hoʻomohala ʻana o ka LED mana kiʻekiʻe, ʻo ka papa kaapuni seramika ka papa kaapuni nui e pili ana i ka noʻonoʻo ʻana i ka hoʻokuʻu ʻana o ka wela: aia ʻekolu mau hana hoʻomākaukau kuʻuna o ke kaapuni mana kiʻekiʻe:

1. Papa kiʻiʻoniʻoni mānoanoa

2. Haʻahaʻa haʻahaʻa wela co kid multilayer seramika

3. Papa kaapuni seramika lahilahi

Ma muli o ke ʻano o ka hui pū ʻana o ka palaoa a me ka ceramic kaapuni papa: uea gula, akā ʻo ka pilina o ka uea gula ke kaupalena ʻia ka pono o ka hoʻokuʻu ʻana i ka wela ma ka pili electrode, no laila e hālāwai me ka bottleneck o ka wela dissipation.

ʻO ka alumini nitride ceramic substrate e hoʻololi i ka papa kaapuni alumini a lilo i luna o ka mākeke chip LED kiʻekiʻe i ka wā e hiki mai ana.