Tuam Tshoj tau ua tiav qhov kev kov yeej loj hauv kev coj
Raws li peb txhua tus paub, muaj peb txoj hauv kev teeb pom kev zoo thev naus laus zis LED hauv ntiaj teb, uas yog sapphire substrate, silicon carbide substrate thiab silicon substrate gallium nitride raws li thev naus laus zis LED (tom ntej no hu ua silicon substrate LED technology) txoj kev. Thawj sapphire LED thev naus laus zis txoj kev yog&& quot; mainstream&& quot; txoj kev siv thev naus laus zis los ntawm kev lag luam, thiab qhov thib ob silicon carbide LED thev naus laus zis yog" siab zoo" txoj kev. Cov tswv yim tsim qauv tseem ceeb ntawm ob txoj hauv kev no yog feem cuam tshuam los ntawm Nyij Pooj, Tebchaws Asmeskas thiab lwm lub tebchaws, tsim cov teeb meem patent rau kev txhim kho ntawm kuv lub tebchaws' LED kev lag luam. Tsis zoo rau kev txhim kho Tuam Tshoj' coj.
Ib sab yog Japanese sapphire substrate, thiab lwm qhov yog Asmeskas silicon carbide substrate. Kev ua lag luam yog tag nrho ntawm cov cuab yeej cuab yeej cuab tam nrog ua tib zoo cog los ntawm LED loj heev. Yuav ua li cas txhawm rau nthuav tawm thiab qhib txoj hauv kev tshiab nyob hauv qhov hnyav pincers thiab monopolies? Txij li xyoo 2003, pab pawg tshawb fawb thiab txhim kho ntawm Xibfwb Jiang Fengyi ntawm Tuam Tshoj tau tsom mus rau silicon-based LED thev naus laus zis. Nws tau nkag siab tias silicon, raws li cov khoom siv substrate, muaj qhov zoo ntawm tus nqi qis, qhov loj, zoo, thiab kev coj ua piv nrog sapphire thiab silicon carbide. Nws suav tias yog kev lag luam' npau suav ntawm kev loj hlob gallium nitride xiav LED cov khoom siv substrate. LED nti siv cov tshuab silicon substrate muaj cua sov zoo, ua haujlwm tiv thaiv zoo, lub neej ntev, thiab ntom ntom tam sim no. Nws yog qhov tsim nyog rau lub zog loj LED teeb pom kev zoo. Thiab vim hais tias ntawm ib leeg ib sab tso lub teeb tawm ntawm silicon nti, lub teeb coj ncaj thiab lub teeb pom kev zoo yog qhov zoo. Cov yam ntxwv zoo ua rau nws tau txais txiaj ntsig zoo hauv cov teb uas xav tau lub teeb pom kev zoo dua thiab kev coj ua, xws li LED lub xov tooj ntawm tes nyem, teeb pom kev zoo hauv tsheb, thiab teeb pom kev zoo sab hauv tsev. Nws daim ntawv thov yog dav heev, kev cia siab ntawm kev lag luam yog qhov zoo, thiab nws yooj yim rau kev nthuav tawm sai. Nyob rau yav tom ntej, cov ntawv thov coj ua yuav pheej yig dua thiab pheej yig dua.
Hnub yug ntawm silicon-based LED thev naus laus zis tsim los ntawm Nanchang, Suav teb, yog sib npaug los tsim lub teeb pom kev tshiab ntawm lub ntiaj teb, ntsuas kev hloov pauv thoob ntiaj teb LED kev lag luam tus qauv thiab ua rau Suav teb muaj qhov thib peb thoob ntiaj teb LED teeb pom kev zoo thev naus laus zis. Xibfwb Jiang Fengyi hais rau cov neeg sau xov xwm tias cov tshuab siv silicon-based LED tau tso cai rau kev lag luam no hauv kuv lub tebchaws kom tsis txhob muaj kev tsis sib haum xeeb nrog ob txoj hauv kev ntawm sapphire substrate thiab silicon carbide substrate. Lub zeem muag yog ci.
