Hona joale, ka lintho tse bonahalang manyolo haholo-holo bakeng sa thepa epoxy lehoakhoa ka theko e tlaase le ea holileng tsebong bonono ka nako e ngata a ntse a le tlhahiso ea PCB, le tloaelehileng manyolo hatisitsoeng oa potoloho boto tloha likarolo tse peli tsa mocheso dissipation le mogote tjaleho coefficient matching ho kopanela liphate, ke ke ea kopana le ditlhoko tsa ikopanya semiconductor oa potoloho kgothaletsa tse bonahalang unceasingly.Ceramic na ntle phahameng maqhubu a tshebetso le tshebetso tsa motlakase, 'me e na le e phahameng mogote conductivity, botsitso lik'hemik'hale le mogote botsitso ba substrates manyolo tse kang ha ba na tshebetso e ntle, na le moloko o mocha oa setshehetso sa balebeli ba potoloho ka tekanyo e kholo le matla a ea elektronike mmojule loketseng ambalaji material.Therefore, lilemong tsa morao tjena, Ceramic Board PCBa amohetseng a lebisa tlhokomelo e pharaletseng le ntshetsopele ka potlako.
Ceramic oa potoloho boto ceramic thehiloeng metallized substrate le thepa e ntle mogote le motlakase, ke mofuta matla LED encapsulation, lintho tse bonahalang e babatsehang, pherese leseli, mahlaseli (MCM) le ke haholo-holo a tsoaneleha ho ba bangata ladica i liphutheloana substrates tse kang ho toba oxyphobe (COB) ladica i encapsulation sebopeho; Ka nako e tšoanang, ho ka boela ho sebediswa e le mocheso dissipation oa potoloho boto ea tse ling tsa dimmojule phahameng-e leng matla matla semiconductor, kgolo switjha jwale, lesokoana, indasteri tlhaeletsanong manakana a sa, filthara, a letsatsi inverter, joalo-joalo
Hona joale, le ntshetsopele ya bokgoni phahameng, phahameng segokanyipalo, 'me matla a phahameng ho indasteri e LED lapeng le linaheng tse ling, ho ka bonoa ho tloha ka 2017 ho 2018, ka kakaretso e ruuoang LED ka hatela pele ka potlako, o hōla ka matla, ntshetsopele ya tshebetso phahametse tsa mocheso tse bonahalang dissipation fetohile e potlakileng ea ho rarolla bothata ba LED mocheso dissipation.In kakaretso, LED bokgoni luminous le tšebeletso ea bophelo hana ka lebaka la keketseho ea mocheso mateano, ha mateano mocheso oa 125 ℃ ka holimo, LED ka hlaha odara esita failure.In ho boloka mocheso LED ka mocheso tlaase, se phahameng mogote conductivity, le tlaase mocheso ho hanyetsa le kahlolo e molemo ambalaji thulaganyou e lokela ho amohelwa ho fokotsa kakaretso mogote ho hanyetsa ea LED.
Epoxy koporo clad substrates ke substrates ho fetisisa ho pharaletseng sebelisoa ka packaging.It tsa moetlo tsa elektronike o mesebetsi e meraro: tšehetso, conduction le litšobotsi insulation.Its ka sehloohong ke: theko e tlaase, se phahameng mongobo ho hanyetsa, le tlaase segokanyipalo, bonolo ho tlhotloa bonolo ho hlokomela micrographics oa potoloho , a loketse bakeng sa batho ba bangata production.But ka lebaka la FR - 4 botlaaseng tse bonahalang ke epoxy lehoakhoa, lintho tse bonahalang manyolo ea tlaase mogote conductivity, phahameng mocheso ho hanyetsa a futsanehile, kahoo FR - 4 sitoa ho tloaela segokanyipalo phahameng, ke matla a LED ditlhoko phahameng ambalaji, ka kakaretso feela sebelisoa ka matla tse nyenyane LED ambalaji.
Ceramic thepa substrate ba haholo-holo ea alumina, Aluminium nitride, Sapphire, High Borosilicate Glass, joalo-joalo Ha ho bapisoa le thepa e 'ngoe substrate, ceramic substrate o na le litšobotsi tse latelang ka thepa phetha molao, thepa ea motlakase le thepa ea mogote:
(1) thepa Mechanical: Mechanical matla e ka ba sebelisoa e le dikarolo tshehetso; sebetsa Molemo, phahameng tlhakore ho nepahala; Smooth holim, ha ho na microcracks, ba kobang, joalo-joalo
(2) Thermal thepa: The conductivity mogote e kgolo, ho mogote tjaleho coefficient e matched le Si le GaAs le thepa e 'ngoe ladica i, le mocheso ho hanyetsa o molemo.
(3) ea motlakase thepa: The kamehla dielectric e tlaase, ho lahleheloa dielectric e nyenyane, e kwahelang hanyetsa le ho hloleheng kwahelang tse phahameng, tshebetso e tsitsitseng tlasa mocheso phahameng le mongobo le phahameng, 'me ho tšepahala ho ke phahameng.
(4) thepa tse ling: Good lik'hemik'hale botsitso, ha ho absorption mongobo; Oil manganga le lik'hemik'hale manganga; Non-nang le chefo e, tšilafalo-free, alpha, ray, mohlapo monyenyane; The sebopeho kristale le tsitsitse, 'me e ke ho se bonolo ho fetola ka mocheso range.Abundant tala matlotlo.
Bakeng sa nako e telele, Al2O3 e ka sehloohong substrate lintho tse bonahalang tse matla phahameng packaging.But le conductivity mogote wa Al2O3 ke tlaase, le mogote tjaleho coefficient ha tšoanang le ladica i material.Therefore, ya ka dipehelo tsa tshebetso, theko le ho sireletsa tikoloho, sena substrate tse bonahalang ho ka ha e-ba lintho tse bonahalang loketseng ho fetisisa bakeng sa ntshetsopele ya disebediswa tsa ho phahameng-e leng matla LED nakong e tlang. Aluminium nitride letsopa le phahameng mocheso conductivity, matla a phahameng, palo e phahameng ho hanyetsa, segokanyipalo tse nyenyane, le tlaase dielectric khaotseng, bao e seng chefo, hammoho le thepa ea khabane ka ho fetisisa tse kang tjaleho coefficient mogote wa tshwanelelanang e le Si, e tla butle-butle nka sebaka sa ba setso se phahameng-e leng matla LED substrate lintho tse bonahalang, ba e mong oa ka ho fetisisa tsepisa nakong e tlang thepa ceramic substrate, ho fana ka le leholo ho 180W ~ 220w / mk la, KingSong fana ceramic mapolanka hatisitsoeng oa potoloho bakeng sa litlhoko tsa hao PCB.