Multilayer Ceramic PCB: Sebopeho, Mokhoa oa Tlhahiso, le Likopo

Multilayer Ceramic PCB Technology ke eng?

PCB ea ceramic ea multilayer e kopanya likarolo tse ngata tsa ceramic dielectric le lipaterone tsa conductor tse kahare ho theha meralo ea meralo ea likarolo tse tharo. Ho fapana le liboto tsa ceramic tse nang le lera le le leng, meaho ena ea li-multilayer e etsa hore ho be le sekhahla se phahameng sa potoloho le merero e rarahaneng ea khokahano ka har'a lintlha tsa compact form. Mokhoa ona o tsoetseng pele oa ho paka o fetohile oa bohlokoa bakeng sa litsamaiso tsa sejoale-joale tsa elektroniki tse hlokang taolo e phahameng ea mocheso, ts'ebetso ea maqhubu a holimo, le ts'epo e ikhethang.

Phetoho e lebisang ho li-substrates tsa multilayer ceramic e arabela ka kotloloho litlhoko tse ntseng li eketseha ho tsoa ho lisebelisoa tsa elektroniki tse matla haholo, likhokahano tsa millimeter-wave, le lits'ebetso tsa makoloi tsa bohlokoa ka ho fetisisa. Liindasteri tse kang sefofane, litsamaiso tsa radar le likhokahano tsa RF li ntse li itšetleha haholo ka likaroloana tsena ho fihlela lintlha tse thata tsa ts'ebetso moo li-PCB tse tloaelehileng tsa tlhaho li sa khoneng ho fana ka ts'ebetso e lekaneng ea mocheso kapa motlakase.

Sebopeho sa Multilayer Ceramic PCB le Likarolo tsa Bohlokoa

Sebopeho sa Lera

Mehaho ea mantlha ea PCB ea ceramic ea multilayer e na le likarolo tse fapanyetsanang tsa dielectric ceramic le li-conductor tse entsoeng ka mokhoa o kopantsoeng ka ho thunngoa ha mocheso o phahameng. Karolo e 'ngoe le e' ngoe e na le ts'ebetso e itseng ts'ebetsong ea kakaretso ea substrate:

• Dielectric layers - Alumina (Al₂O₃), aluminium nitride (AlN), kapa likhalase tsa khalase-ceramic tse khethiloeng ho ipapisitse le maemo a mocheso le litlhoko tsa dielectric
• Mekhoa ea mokhanni - Silevera, tungsten, molybdenum kapa koporo e khethiloeng ho latela mocheso oa mocheso le lipehelo tsa ts'ebetso ea motlakase.
• Ka likhokahano - Litsela tsa motlakase tse otlolohileng tse hokahanyang likarolo tse ngata tsa litsela, tse nolofalletsang moralo oa potoloho oa mahlakore a mararo
• Lifofane tse fatše le tsa motlakase - Likarolo tse kentsoeng ka hare tse matlafatsang tšireletso ea motlakase le ho fokotsa lerata la switching

Stack-Up Architecture

Sebaka se tloaelehileng sa multilayer ceramic substrate se na le mekhahlelo e mene ho isa ho e mashome a mabeli, leha meralo e ikhethileng e ka kenyelletsa tse ling. Sebaka se seng le se seng sa dielectric se tloha ho li-micrometer tse 50 ho isa ho tse 250 ka botenya, se lumellang taolo e nepahetseng holim'a bokhoni ba interlayer le impedance ea sebopeho. Ka likhokahano, tse entsoeng ka ho cheka ka laser kapa ho phunya ka mochini pele ho lamination, ho theha likhokahano tse otlolohileng tsa motlakase tse nolofalletsang litsela tse rarahaneng ho pholletsa le lifofane tse ngata.

Melemo Ho Feta Meetso ea Lera le le Mong

Leha li-PCB tsa ceramic tsa lera le le leng li fana ka thepa e ntle ea mocheso, liboto tsa ceramic tsa lera le le leng li fana ka ho tenyetseha ho hoholo ha moralo. Meralo ea mahlakore a mararo e felisa lithibelo tsa ho tšela, e nolofalletsa ho tsamaisa lipara tse fapaneng ka taolo e nepahetseng ea sebaka, 'me e amohela bongata ba likarolo tse phahameng haholo. Lifofane tsa ka hare tsa mobu li fana ka ho lumellana ho phahameng ha motlakase ha ho bapisoa le meralo ea lera le le leng, e leng se etsang hore meaho ea lera le le leng e be ea bohlokoa bakeng sa RF e bonolo le lipotoloho tsa dijithale tse potlakileng.

Multilayer Ceramic PCB Manufacturing: LTCC le HTCC Processes

Ceramic ea Mocheso o Tlase (LTCC)

Theknoloji ea LTCC e sebetsa ka mocheso oa mocheso o pota-potileng 850 ° C, e nolofalletsang silevera e sebetsang haholo kapa tšepe e entsoeng ka khauta. Mocheso ona o tlase oa mocheso o lumella ho kopanngoa ha likaroloana tse kentsoeng tse kang li-capacitor le li-resistors ka ho toba ka har'a likarolo tsa ceramic. Sephetho ke li-module tse kopantsoeng haholo tse nang le bothata bo fokotsehileng ba kopano le ts'ebetso e ntlafetseng ea motlakase ka litsela tse khutsufalitsoeng tsa ho hokahanya.

Ceramic ea Mocheso o Phahameng oa Mocheso (HTCC)

Li-substrates tsa HTCC li ntse li chesa hoo e ka bang 1600 ° C, e leng se hlokang li-conductors tsa tšepe tse sa tšoaneng tse kang tungsten kapa molybdenum. Ts'ebetso ea HTCC e hlahisa meaho ea ceramic e nang le matla a holimo a mochini, letsoalo le phahameng, le hermeticity e betere ha e bapisoa le mefuta e fapaneng ea LTCC. Litšobotsi tsena li etsa hore liboto tsa HTCC tsa multilayer ceramic li tšoanelehe ka ho khetheha bakeng sa lits'ebetso tse thata tsa tikoloho moo ho tiea ha mochini le ho ts'epahala ha nako e telele ho bohlokoa.

Mehato ea Ts'ebetso ea Tlhahiso

Tlhahiso ea li-PCB tsa ceramic tsa multilayer e latela tatellano e laoloang hantle:

1. Ho lokisetsa teipi e tala – Ceramic phofo e kopantsoeng le li-binders tsa tlhaho e kenngoa ka har'a maqephe a tšesaane, a tenyetsehang
2. Khatiso ea mokhanni - Khatiso ea skrine e sebelisa litšepe tsa tšepe ka mekhoa e hlalositsoeng hantle karolong e 'ngoe le e 'ngoe
3. Ka sebopeho le ho tlatsa - Likoti lia phunngoa kapa li phunngoa ka laser ebe li tlatsoa ka thepa e tsamaisang
4. Ho tsamaisana le lera le lamination - Likarolo tse ngata li hokahantsoe ka hloko 'me li hatelloa hammoho tlas'a maemo a laoloang
5. Ho thunya hammoho - Kopano e fumana mocheso o laoloang o chesang li-binders, likaroloana tsa sinter ceramic, le likarolo tsa li-conductor tsa fuse.
6. Tharollo ea kamoso - Metallization ea holim'a metsi, lisebelisoa tse rekisoang, le ho ratoa ka nepo ho phethela boqapi

Ts'ebetso ea Motlakase le Thermal ea Multilayer Ceramic PCB

Lisebelisoa tsa Dielectric

Multilayer ceramic PCB substrates e bonts'a likhakanyo tsa dielectric hangata ho tloha ho 5 ho isa ho 9, ho latela sebopeho sa thepa. Tekanyetso ena e itekanetseng ea dielectric e nolofalletsa moralo o laoloang oa impedance bakeng sa lits'ebetso tse phahameng haholo ha o ntse o boloka li-geometri tsa compact circuit. Tahlehelo e tlase ea thepa ea ceramic e netefatsa ho theoleloa ha lets'oao ho fokolang, ho etsa hore li-substrates tsena li be tse loketseng li-circuits tsa millimeter-wave le microwave tse sebetsang ho feta 30 GHz.

Matla a Tsamaiso ea Mocheso

Aluminium nitride multilayer ceramic boards e fana ka boleng ba conductivity ea mocheso ho fihla ho 170 W/m·K, e fetang hōle li-substrates tse tloaelehileng tsa alumina le ts'ebetso ea koporo e atamelang. Bokhoni bona bo ikhethang ba ho jala mocheso bo lumella ho kenngoa ka ho toba ha lisebelisoa tsa semiconductor tse nang le matla a phahameng ntle le lisebelisoa tsa mahareng tsa mocheso oa mocheso. Esita le li-PCB tse tloaelehileng tsa alumina multilayer ceramic, tse nang le mocheso oa mocheso o pota-potileng 20-30 W/m·K, li feta likaroloana tsa tlhaho ka tatellano ea boholo.

Thermal Katoloso Matching

Coefficient ea katoloso ea mocheso bakeng sa likaroloana tsa ceramic e tšoana hantle le lisebelisoa tsa silicon semiconductor ho 6 ho isa ho 8 ppm/°C. Tšebelisano ena ea mocheso e fokotsa khatello ea mocheso nakong ea mocheso oa libaesekele, e fokotsa kotsi ea mokhathala o kopaneng oa solder likopanong tsa chip-on-board. Botsitso bo boholo ba liboto tsa ceramic tsa multilayer ho pholletsa le mocheso o feteletseng bo netefatsa ts'ebetso e tsitsitseng ea motlakase ho tloha ho cryogenic ho ea ho mocheso o phahameng oa ts'ebetso.

Melemo ea Bohlokoa ea Multilayer Ceramic PCB Technology

Multilayer ceramic PCB e fana ka melemo e ikhethang ea ts'ebetso e etsang hore e be ea bohlokoa bakeng sa lits'ebetso tse hlokang:

• Khokahano e phahameng-tlase - Meaho e nang le likarolo tse tharo e amohela likete tsa likhokahano le mekhahlelo e mengata ea litsela ka har'a mehato e fokolang.
• Phallo e phahameng ea mocheso - Phatlalatso e ikhethang ea mocheso e nolofalletsa matla a phahameng a matla le ho ntlafatsa ts'ebetso ea sesebelisoa lits'ebetsong tse matla haholo.
• Ts'ebetso e ntle haholo ea maemo a holimo - Tahlehelo e tlase ea dielectric le litšobotsi tse laoloang tsa impedance li tšehetsa li-circuits tsa millimeter-wave tse nang le phokotso e nyane ea matšoao.
• Matla a mechine - Li-substrates tsa ceramic li hanela kutu, li boloka botsitso ba sebopeho tlas'a ho sisinyeha le meroalo e tšosang, 'me li bonts'a ho senyeha ho fokolang ka nako e telele ea bophelo.
• Kopanyo ea likarolo - Theknoloji ea LTCC e nolofalletsa likarolo tse kenyelelitsoeng, ho fokotsa ho rarahana ha kopano le ho ntlafatsa ts'ebetso ea motlakase

Meeli ea Moralo le Mathata a Tlhahiso

Tlhokomelo ea Litšenyehelo

Litsenyehelo tsa tlhahiso ea li-PCB tsa ceramic tsa multilayer li feta haholo tsa li-substrates tse tloaelehileng tsa tlhaho ka lebaka la thepa e ikhethang, lisebelisoa tsa ho sebetsa ka nepo, le potoloho e atolositsoeng ea tlhahiso. Ts'ebetso ea ho thunya hammoho e hloka maemo a leholimo a laoloang ka hloko le boemo ba mocheso, 'me ho na le menyetla e fokolang ea ho sebetsa hape haeba liphoso li hlaha. Lintlha tsena tsa moruo li etsa hore liboto tsa ceramic tse ngata li tšoanelehe haholo bakeng sa lits'ebetso moo litlhoko tsa ts'ebetso li lokafatsang matsete.

Ts'ebetso e rarahaneng

Ho finyella tlhophiso e nepahetseng ea layer-to-lay nakong ea lamination ho hlahisa liphephetso tsa tekheniki, haholo ha boholo bo fokotseha le lipalo tsa lera li eketseha. Ho fokotseha nakong ea ho thunngoa ho tlameha ho boleloa esale pele ka nepo le ho lefshoa mesebetsing ea pele ea bonono, kaha liphetoho tsa boholo li ka fihla liperesente tse 15-20. Tlhokahalo ea melao e khethehileng ea meralo le boitseanape ba tlhahiso e baka mekoallo bakeng sa lik'hamphani tse sa tsebeng theknoloji ea substrate ea ceramic.

Litšitiso tsa Boholo

Bophahamo ba liphanele bakeng sa tlhahiso ea PCB ea ceramic ea multilayer hangata e lula e le nyane ho feta liphanele tsa PCB, e fokotsang moruo oa sekala. Li-substrates tsa ceramic tse nang le sebopeho se seholo li tobane le kotsi e eketsehileng ea ntoa le ho phatloha nakong ea ho thunngoa, 'me ka katleho li thibela litekanyo tse sebetsang ho lifomate tse nyane tsa module.

Multilayer Ceramic PCB Applications Across Industries

RF le Microwave Systems

Sistimi ea RF le microwave e sebelisa haholo li-substrates tsa ceramic tsa multilayer bakeng sa lifilthara, li-diplexer, liamplifiers tsa motlakase, le marang-rang a phepelo ea antenna a sebetsang ho tsoa ho UHF ka maqhubu a millimeter-wave. Tahlehelo e tlase ea dielectric le litšobotsi tse laoloang tsa impedance li nolofalletsa lipotoloho tse sebetsang hantle tse nang le tahlehelo e nyane ea ho kenya. Lipuisano tsa satellite, lisebelisoa tsa 5G, le lisebelisoa tsa radar li itšetlehile ka li-modules tsena tsa ceramic bakeng sa ts'ebetso ea matšoao e tšepahalang ka maqhubu a fetang 30 GHz.

Likoloi tsa Elektroniki

Sistimi e tsoetseng pele ea lithuso tsa bakhanni le sethala sa likoloi tse ikemetseng li hloka li-PCB tsa ceramic tse ngata bakeng sa li-transceiver tsa radar tse sebetsang ho 24 GHz le 77 GHz. Ho tsitsa ha mocheso le ho ts'epahala ha likaroloana tsa ceramic ho netefatsa ts'ebetso e tsitsitseng ho pholletsa le mocheso oa likoloi ho tloha ho -40 ° C ho ea + 150 ° C. Li-module tsa fusion tsa sensor li kopanya mesebetsi e mengata ho liboto tse le 'ngoe tsa multilayer ceramic, li fokotsa ho rarahana ha sistimi ha li ntse li ntlafatsa tšebelisano ea motlakase.

Lisebelisoa tsa motlakase

Lisebelisoa tse matla haholo li rua molemo litšobotsing tse phahameng tsa ho qhala mocheso tsa li-substrate tsa ceramic tse nang le mekhahlelo e mengata:

• Li-module tsa IGBT - Khokahano e tobileng ea li-semiconductors tsa matla e thusa meralo e kopaneng ka katleho e ntlafalitsoeng
• Li-converter tsa DC-DC - Li-inductances tse tlase tsa parasitic li tšehetsa lebelo la ho fetoha ka potlako le ho fokotsa tšitiso ea motlakase
• Li-driver tsa LED - Ts'ebetso e phahameng ea mocheso e boloka mocheso oa mateano bakeng sa tlhahiso e ntle ea khanya le nako e telele ea bophelo

Sepakapaka le Lisebelisoa tsa Bongaka

Sistimi ea sepakapaka e hloka ho ts'epahala le hermeticity e fanoeng ke HTCC multilayer ceramic board bakeng sa litsamaiso tsa puisano le liphutheloana tsa sensor. Lisebelisoa tsa bongaka li sebelisa miniaturized multilayer ceramic PCBs bakeng sa lisebelisoa tse kenngoeng le lisebelisoa tsa tlhahlobo moo biocompatibility le botsitso ba nako e telele e leng litlhoko tsa bohlokoa.

fihlela qeto e

Theknoloji ea Multilayer ceramic PCB e fana ka ts'ebetso e ke keng ea lekanngoa bakeng sa lits'ebetso tsa elektroniki tse hlokang ts'epo e phahameng, taolo e phahameng ea mocheso, le litšoaneleho tse ntle tsa maqhubu a holimo. Motsoako oa bokhoni ba litsela tse tharo, thepa ea motlakase e tsitsitseng, le sebopeho se matla sa mochini se etsa hore likaroloana tsena e be tsa bohlokoa bakeng sa litsamaiso tsa sefofane, tsa likoloi le tsa mehala.

Highleap Electronics e ikhethile ka ho etsa li-PCB tsa ceramic tse nang le mekhahlelo e mengata ho sebelisa lits'ebetso tsa LTCC le HTCC , e fana ka litharollo tse felletseng ho tloha puisanong ea pele ea moralo ka tlhahiso ea li-prototype le tlhahiso ea bophahamo. Sehlopha sa rona sa boenjiniere se ntlafatsa litlhophiso tsa ho bokellana, se khetha thepa e loketseng, 'me se netefatsa hore e ka etsoa bakeng sa meralo e rarahaneng ea mekhahlelo e mengata. Ikopanye le sehlopha sa rona sa boenjiniere ba lits'ebetso ho hlahloba kamoo theknoloji ea substrate ea ceramic e nang le mekhahlelo e mengata e ka ntlafatsang litsamaiso tsa hau tsa elektroniki tsa moloko o latelang.