1. Ke hobane'ng ha u sebelisa mapolanka a potoloho ea ceramic
PCB e tloaelehileng hangata e entsoe ka foil ea koporo le bonding ba substrate, 'me thepa ea substrate hangata e na le fiber ea khalase (FR-4), phenolic resin (FR-3) le lisebelisoa tse ling, sekhomaretsi hangata se phenolic, epoxy, joalo-joalo. Ts'ebetso ea PCB ka lebaka la khatello ea mocheso, lintlha tsa lik'hemik'hale, ts'ebetso e sa nepahalang ea tlhahiso le mabaka a mang, kapa ts'ebetsong ea moralo ka lebaka la mahlakoreng a mabeli a koporo ea asymmetry, ho bonolo ho lebisa ho likhato tse fapaneng tsa warping PCB board.
PCB Twist
'Me karolo e' ngoe ea PCB - substrate ea ceramic, ka lebaka la ts'ebetso ea ho senya mocheso, matla a hona joale a ho jara, ho kenya letsoho, mocheso oa ho atolosa mocheso, joalo-joalo, li molemo haholo ho feta boto e tloaelehileng ea khalase ea PCB, kahoo e sebelisoa haholo ho li-modules tsa matla a phahameng a motlakase. , sepakapaka, lisebelisoa tsa elektronike tsa sesole le lihlahisoa tse ling.
Li-substrates tsa ceramic
Ka PCB e tloaelehileng e sebelisang foil ea koporo le substrate bonding, ceramic PCB e sebakeng se phahameng sa mocheso, ka tsela ea ho kopanya foil ea koporo le substrate ea ceramic e kopantsoeng hammoho, matla a matla a tlamang, foil ea koporo e ke ke ea oa, ho tšepahala ho phahameng, ts'ebetso e tsitsitseng ka holimo. mocheso, mongobo o phahameng tikoloho
2. Lintho tse ka sehloohong tsa substrate ea ceramic
Alumina (Al2O3)
Alumina ke thepa e sebelisoang ka ho fetesisa ea substrate ka har'a substrate ea ceramic, hobane ka thepa ea mochini, ea mocheso le ea motlakase ha e bapisoa le lirafshoa tse ling tse ngata tsa oxide, matla a phahameng le botsitso ba lik'hemik'hale, le mohloli o ruileng oa lisebelisoa tse tala, tse loketseng tlhahiso ea theknoloji le libopeho tse fapaneng. . Ho ea ka peresente ea alumina (Al2O3) ka aroloa ka 75 porcelain, 96 porcelain, 99,5 porcelain. Thepa ea motlakase ea alumina e batla e sa amehe ke litaba tse fapaneng tsa alumina, empa thepa ea eona ea mochini le conductivity ea mocheso e fetoha haholo. The substrate e nang le bohloeki bo tlaase e na le likhalase tse ngata le ho feta holimo holimo. Ho phahama ha bohloeki ba substrate, ho thella haholoanyane, ho kopana, tahlehelo e bohareng e tlase, empa theko e boetse e phahame.
Beryllium oxide (BeO)
E na le conductivity e phahameng ea mocheso ho feta aluminium ea tšepe, 'me e sebelisoa maemong ao ho hlokahalang hore ho be le mocheso o phahameng oa mocheso. E fokotseha ka potlako ka mor'a hore mocheso o fete 300 ℃, empa tsoelo-pele ea eona e lekanyelitsoe ke chefo ea eona.
Aluminium nitride (AlN)
Aluminium nitride ceramics ke lirafshoa tse nang le aluminium nitride powders e le karolo ea mantlha ea kristale. Ha ho bapisoa le alumina ceramic substrate, insulation resistance, insulation e mamella voltage e phahameng, dielectric kamehla. Thermal conductivity ea eona ke 7 ~ 10 makhetlo a Al2O3, 'me mocheso oa eona oa ho atolosa mocheso (CTE) o batla o tšoana le silicon chip, e leng ea bohlokoa haholo bakeng sa lisebelisoa tse phahameng tsa semiconductor. Ts'ebetsong ea tlhahiso, mocheso oa mocheso oa AlN o ameha haholo ke litaba tsa litšila tse setseng tsa oksijene, 'me mocheso oa mocheso o ka eketseha haholo ka ho fokotsa oksijene. Hona joale, conductivity ea mocheso oa mokhoa ona
Ho itšetlehile ka mabaka a ka holimo, ho ka tsejoa hore li-ceramics tsa alumina li boemong bo ka sehloohong lefapheng la microelectronics, motlakase oa motlakase, li-microelectronics tse tsoakiloeng le li-module tsa matla ka lebaka la ts'ebetso ea tsona e phahameng ka ho fetisisa.
Ha ho bapisoa le 'maraka oa boholo bo lekanang (100mm×100mm×1mm), lisebelisoa tse fapaneng tsa theko ea ceramic substrate: 96% alumina 9.5 yuan, 99% alumina 18 yuan, aluminium nitride 150 yuan, beryllium oxide 650 yuan, ho ka bonoa hore lekhalo la theko pakeng tsa li-substrates tse fapaneng le tsona li batla li le khōlō
3. Melemo le go tlhoka mesola ea ceramic PCB
Melemo
- Bophahamo bo boholo ba hona joale, 100A hajoale e ntse e tsoela pele ka 'mele oa koporo o teteaneng oa 1mm 0.3mm, ho phahama ha mocheso ho ka bang 17 ℃
- Ho phahama ha mocheso ho ka ba 5 ℃ feela ha 100A hajoale e ntse e feta 'meleng oa koporo o motenya oa 2mm 0.3mm.
- Ts'ebetso e betere ea ho senya mocheso, coefficient e tlase ea katoloso ea mocheso, sebopeho se tsitsitseng, ha ho bonolo ho sotha.
- Insulation e ntle, khanyetso e phahameng ea motlakase, ho netefatsa polokeho ea motho le lisebelisoa.
Mefokolo
Fragility ke e 'ngoe ea mefokolo e ka sehloohong, e lebisang ho etsa mapolanka a manyenyane feela.
Theko e theko e boima, litlhoko tsa lihlahisoa tsa elektronike li na le melao e mengata, boto ea potoloho ea ceramic kapa e sebelisoang ho tse ling tsa lihlahisoa tse phahameng haholo, lihlahisoa tse tlaase li ke ke tsa sebelisoa ho hang.
4. Tšebeliso ea ceramic PCB
a. Mojule oa matla a phahameng a elektroniki, mojule oa solar panel, joalo-joalo
- Phepelo ea matla a phahameng a maqhubu, phepelo ea motlakase e tiileng
- Lisebelisoa tsa elektronike tsa likoloi, sefofane, lisebelisoa tsa elektroniki tsa sesole
- Lihlahisoa tse phahameng tsa mabone a LED
- Antenna ea puisano