Aluminium nitride ceramic PCB

 

Aluminium nitride ceramic yog ib yam khoom siv ceramic nrog aluminium nitride (AIN) ua lub ntsiab siv lead ua theem. Etching hlau Circuit Court ntawm aluminium nitride ceramic substrate yog aluminium nitride ceramic substrate.

1. Aluminium nitride ceramic yog cov ceramic nrog txhuas nitride (AIN) ua lub ntsiab crystalline theem.

2. Ain siv lead ua siv lead ua (ain4) tetrahedron ua chav tsev, covalent bond compound, muaj wurtzite qauv thiab belongs rau hexagonal system.

3. Tshuaj muaj pes tsawg leeg ai65 81%, N34. 19%, tshwj xeeb lub ntiajteb txawj nqus 3.261g / cm3, dawb los yog grey dawb, ib qho siv lead ua tsis muaj xim thiab pob tshab, sublimation thiab decomposition kub nyob rau hauv ib txwm siab yog 2450 ℃.

4. Aluminium nitride ceramic yog cov khoom siv hluav taws xob kub-resistant nrog cov coefficient ntawm thermal expansion ntawm (4.0-6.0) x10 (- 6) / ℃.

5. Polycrystalline ain muaj cov thermal conductivity ntawm 260W / (mk), uas yog 5-8 zaug siab dua li ntawm alumina, yog li nws muaj qhov zoo ntawm cov cua sov tsis kam thiab tuaj yeem tiv taus kub ntawm 2200 ℃.

6. Aluminium nitride ceramics muaj corrosion kuj zoo heev.

 

 

 

Ceramic circuit board muaj cov khoom siv hluav taws xob zoo thiab cov khoom siv hluav taws xob zoo, thiab muaj cov khoom uas cov organic substrates tsis muaj, xws li thermal conductivity, zoo heev tshuaj stability thiab thermal stability. Nws yog cov khoom ntim zoo tagnrho rau cov tiam tshiab ntawm kev sib xyaw ua ke loj thiab cov khoom siv hluav taws xob hluav taws xob.

Semiconductor cov cuab yeej xav tau los ntawm cov chaw nyob thiab cov cuab yeej siv tau tsim kho sai, nrog kev siv hluav taws xob siab, kev sib koom ua ke siab thiab kev hloov pauv, kev nyab xeeb siab thiab kev ua haujlwm siab. Yog li ntawd, kev npaj cov khoom siv thermal conductivity tseem yog ib qho teeb meem ceev uas yuav tsum tau daws kom deb li deb. Cov ceramics raws li aluminium nitride muaj cov khoom tsim nyog tshaj plaws. Thiab tom qab ntau yam kev sim, nws tau maj mam tshwm sim hauv tib neeg lub zeem muag, thiab daim ntawv thov loj tshaj plaws yog cov khoom siv hluav taws xob LED siab.
Raws li txoj hauv kev tseem ceeb ntawm cov cua sov, aluminium nitride ceramic circuit board yog qhov tseem ceeb hauv kev ntim khoom ntawm high-power LED. Nws ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov cua sov kom zoo, txo qhov kub thiab txias thiab txhim kho kev ntseeg tau thiab kev pab lub neej ntawm cov cuab yeej.

LED txias Circuit Court board feem ntau muab faib ua: LED grain Circuit Court board thiab system Circuit Court board. LED grain Circuit Court board yog tsuas yog siv los ua qhov nruab nrab ntawm cov hluav taws xob hluav taws xob xa tawm ntawm LED lis thiab qhov system Circuit Court board, uas yog ua ke nrog LED grain los ntawm cov txheej txheem ntawm hlau kos duab, eutectic los yog cladding.

Nrog rau txoj kev loj hlob ntawm high-power LED, ceramic Circuit Court board yog lub ntsiab Circuit Court board raws li kev xav ntawm tshav kub dissipation: muaj peb tsoos kev npaj ntawm high-power circuits:

1. Thick zaj duab xis ceramic board

2. Tsawg kub co raug rho tawm haujlwm multilayer ceramics

3. Nyias zaj duab xis ceramic circuit board

Raws li kev sib xyaw ua ke ntawm LED grain thiab ceramic circuit board: kub hlau, tab sis kev sib txuas ntawm cov hlau kub txwv qhov ua tau zoo ntawm cov cua sov dissipation raws li cov electrode tiv tauj, yog li nws ua tau raws li lub fwj ntawm cov cua kub dissipation.

Aluminium nitride ceramic substrate yuav hloov aluminium Circuit Court board thiab dhau los ua tus thawj tswj hwm ntawm high-power LED nti lag luam yav tom ntej.