Qhov sib txawv ntawm aluminium thiab ceramics rau LED txias

Niaj hnub no, nrog kev txhim kho sai ntawm semiconductor teeb pom kev zoo, qhov teeb meem tseem ceeb ntawm LED txias yuav dhau los ua teeb meem loj. Yog li yuav ua li cas kom ua tiav qhov ua tau zoo tshaj plaws ntawm cov cua sov dissipation? Kev tsim cov chips yog ntau haiv neeg, thiab LED chips tsis muaj qhov tshwj xeeb. Lub thermal conductivity ntawm cov nti yuav ncaj qha cuam tshuam rau lub tshav kub dissipation. Ntawm chav kawm, raws li ib tug nti, peb tsis tuaj yeem tsuas saib cov cua kub dissipation, nrog rau cov dielectric tas li thiab thermal expansion coefficient.

Aluminium substrate -- muaj nyob rau hauv LED teeb pom kev zoo khoom. Cov khoom siv ntawm LED yog 6000 series, uas sawv cev rau 6061. Nws tsuas yog muaj magnesium thiab silicon. Yog li ntawd, nws ua ke qhov zoo ntawm 4000 series thiab 5000 series. 6061 yog cov khoom txias-kho aluminium forging, uas yog tsim rau cov ntawv thov uas muaj kev tiv thaiv corrosion thiab oxidation siab. Zoo usability, zoo heev interface yam ntxwv, yooj yim txheej thiab zoo processability.

Ceramic substrate yog hais txog cov txheej txheem tshwj xeeb hauv cov ntawv ci tooj liab ncaj qha rau ntawm alumina lossis aluminium nitride ceramic substrate ntawm qhov kub thiab txias. Lub ultra-thin composite substrate muaj cov rwb thaiv tsev zoo heev, thermal conductivity, zoo heev solderability thiab siab adhesion zog, thiab tuaj yeem etch ntau yam qauv zoo li PCB.

Lub advent ntawm ceramic substrate khoom tau qhib txoj kev loj hlob ntawm tshav kub dissipation daim ntawv thov kev lag luam. Vim lub tshav kub dissipation yam ntxwv ntawm ceramic substrate thiab qhov zoo ntawm ceramic substrate xws li high tshav kub dissipation, tsawg thermal kuj, corrosion kuj, ntev kev pab cuam lub neej thiab voltage kuj, nrog rau kev txhim kho ntawm ntau lawm technology thiab khoom siv, rationalization ntawm cov nqi khoom muaj. nrawm, thiaj li nthuav dav daim ntawv thov kev lag luam ntawm LED kev lag luam, xws li qhov taw qhia teeb ntawm cov khoom siv hluav taws xob hauv tsev, tsheb teeb txoj kev teeb thiab sab nraum zoov LED zaub screen, thiab lwm yam.

Nrog rau kev rov ua dua tshiab thiab kev siv thev naus laus zis, cov khoom tshiab thiab zoo dua yuav hloov cov thev naus laus zis qub. Kev ua lag luam yeej ib txwm muaj txoj sia nyob ntawm cov fittest. Raws li cov chaw tsim khoom, peb yuav tsum sib tw noj qab haus huv los ua kom peb cov khoom zoo dua qub thiab zoo dua, txhawm rau tsav kev nce qib thiab tshem tawm tag nrho kev lag luam.