Aluminium PCB ke eng?

Li tsebahala ka ho tiea ha tsona le ho sebetsa hantle ha tsona, li-PCB tsa aluminium li fetohile lejoe la bohlokoa moralong le tlhahisong ea elektroniki ea sejoale-joale. Blog ena e kenella lefats'eng le rarahaneng la li-PCB tsa aluminium, e totobatsa bohlokoa ba tsona, melemo le mefuta e mengata ea lits'ebetso tseo li li matlafatsang.

Aluminium PCB ke eng?

PCB ea aluminium e feta feela boto ea potoloho e tloaelehileng. Ke substrate e tsoetseng pele ea elektronike e kopanyang motheo oa tšepe, hangata aluminium, le FR-4 e tloaelehileng. Ho kopanngoa ha aluminium ho fana ka motsoako o ikhethang oa conductivity ea mocheso le motlakase oa motlakase, ho o khetholla ho li-PCB tsa setso. Karolo ena e tla hlahloba lintlha tsa sebopeho tse etsang hore li-PCB tsa aluminium e be khetho e ratoang lits'ebetsong tse futhumatsang haholo.

Aluminium PCB sebopeho

1. Lera la Aluminium

Boitsebiso: Lera la motheo la aluminium PCB le entsoe ka motsoako oa aluminium. Khetho ea alloy e ka fapana ho latela ts'ebeliso empa hangata e khethoa bakeng sa conductivity ea eona e ntle ea mocheso le matla a mochini.
Mosebetsi: Lera lena le sebetsa e le motheo oa PCB, le fana ka botsitso ba sebopeho. Mosebetsi oa eona o ka sehloohong ke ho tlosa mocheso hole le likarolo tsa bohlokoa, ka hona ho fokotsa mocheso oa ho sebetsa le ho eketsa nako ea bophelo ea sesebelisoa.

2. Thermal Insulation Layer

Sebopeho: Lera lena le entsoe ka thepa ea ceramic polymer e nang le khanyetso e phahameng ea mocheso le conductivity e ntle ea mocheso. E sebetsa joalo ka dielectric, e fana ka insulation ea motlakase lipakeng tsa setsi sa aluminium le lera la potoloho ea koporo.
Mosebetsi: E fetisetsa mocheso ka katleho ho tloha lera la koporo ho ea setsing sa aluminium ha o ntse o boloka ho itšehla thajana ha motlakase. Lera lena le bohlokoa bakeng sa ho thibela khatello ea mocheso le ho sireletsa botšepehi ba potoloho.

3. Lera la Potoloho (Lera la Koporo)

Boitsebiso: Lera la potoloho le entsoe ka koporo, e tsejoang ka mokhoa o motle oa ho tsamaisa motlakase. Botenya ba lera la koporo bo ka fapana ho ea ka litlhoko tsa kopo - ho tloha ho 1 oz ka maoto a lisekoere ho ea ho boima bo phahameng bakeng sa ho eketseha ha matla a ho jara hona joale.
Mosebetsi: Lera lena le na le potoloho e hatisitsoeng, ho kenyelletsa le mesaletsa, liphaephe le li-vias tse etsang likhokahano tsa motlakase lipakeng tsa likarolo. Ke moo ts'ebetso ea elektroniki ea PCB e hlalosoang.

4. Solder Mask Layer

Sebopeho: Ka holim'a lera la koporo, ho sebelisoa mask a solder, ao hangata e leng epoxy layer e tala empa e ka tla ka mebala e meng. Lera lena le sireletsa koporo ho tsoa ho oxidation, le fana ka insulation pakeng tsa mesaletsa ea koporo le likarolo tse ling tsa tšepe, 'me le thibela marokho a solder nakong ea solder ea likarolo.
Mosebetsi: E hlalosa libaka tseo soldering e reretsoeng ho li kopanya, ho sireletsa karolo e setseng ea koporo ho tloha ka phoso ho solder le ho senya.

5. Lera la Silkscreen

Boitsebiso: Lera lena leo u ka le khethang le sebelisoa ka holim'a lesela la mask ea solder 'me le sebelisetsoa ho hatisa mongolo le matšoao (joaloka lileibole tsa likarolo le lintlha tsa teko) ho thusa ho kopanya le ho rarolla mathata.
Mosebetsi: E fana ka tlhahisoleseling ea bohlokoa bakeng sa ho bokella, ho lekola, le ho sebeletsa PCB.

Melemo ea Aluminium PCBs

Li-PCB tsa Aluminium li fetotse indasteri ea lisebelisoa tsa elektroniki ka thepa ea tsona e ikhethang. Ba fana ka melemo e mengata ho feta liboto tsa potoloho tsa setso, e leng se etsang hore e be khetho e ratoang bakeng sa lits'ebetso tse fapaneng tse sebetsang hantle. Karolo ena e tla hlahloba melemo e mengata ea li-PCB tsa aluminium, e totobatsang phello ea bona ho sebetsa hantle le ho tšepahala ha lisebelisoa tsa elektronike.

Phallo e Phahameng ea Mocheso

E 'ngoe ea melemo e ka sehloohong ea li-PCB tsa aluminium ke bokhoni ba tsona ba ho senya mocheso ka katleho. Ho fapana le mapolanka a tloaelehileng a fiberglass, aluminium e fana ka tsela e ntle haholo ea mocheso. Karolo ena e bohlokoa bakeng sa lisebelisoa tsa elektroniki tse matla haholo, kaha e thusa ho boloka mocheso o nepahetseng oa ts'ebetso, ka hona e lelefatsa bophelo ba likaroloana. Karolo e tla shebana le saense ka morao ho taolo ena e phahameng ea mocheso le hore na e fetolela joang ts'ebetsong e ntle ka kakaretso ea lisebelisoa tsa elektroniki.

Keketseho ea mocheso

Ho atolosoa ha mocheso le ho fokotseha ke litšobotsi tse tloaelehileng tsa thepa, 'me lisebelisoa tse fapaneng li na le li-coefficients tse fapaneng tsa ho atolosa mocheso. Hona joale li-PCB tsa aluminium li ntle haholo ka ho senya mocheso, ka hona, mathata a ho atolosa mocheso le ho fokotseha ha likarolo tsa boto a ka fokotsoa haholo ka ho tšoarella le ho tšepahala ha lisebelisoa tsohle tsa motlakase le tsa elektroniki. Molemo ona oa li-PCB tsa aluminium o loketse ka ho khetheha bakeng sa SMT (Surface Mount) (theknoloji ea ho kenya) litaba tsa katoloso ea mocheso le ho fokotseha.

Boikutlo ba botsitso

Aluminium-based Printed Circuit Boards (PCBs) e bonts'a botsitso bo ikhethang tlas'a khatello ea mocheso, e leng tšobotsi ea bohlokoa bakeng sa lisebelisoa tse fapaneng tsa mocheso o phahameng. Dimensional stability e bolela bokhoni ba thepa ho boloka litekanyo tsa eona ha e le tlas'a liphetoho tsa mocheso kapa mongobo. Bakeng sa li-PCB tse thehiloeng ho aluminium, thepa ena e bohlokoa haholo. Ha li-PCB tsena li pepesehetse mocheso o fapaneng oa mocheso, ho tloha ho 30°C ho ea ho 140°C kapa 150°C, li ba le phetoho e fokolang ea boholo, hangata e ka ba 2.5% ho isa ho 3.0%.

Sehlopha sa Aluminium PCBs

1. Universal Aluminium PCB

Sebopeho sa Dielectric Layer: Lera la dielectric ho li-PCB tsa aluminium tsa bokahohleng hangata li entsoe ka epoxy glass fiber prepreg. Boitsebiso bona bo tsejoa ka thepa ea eona e ntle ea ho pata le matla a mochine.

Likopo: Ka lebaka la sebopeho sa tsona se akaretsang, li-PCB tsa aluminium tsa bokahohle li sebelisoa mefuteng e mengata ea lits'ebetso, ho kenyeletsoa lisebelisoa tsa elektronike tsa bareki, mabone a LED, le lisebelisoa tse bonolo tsa motlakase. Ba fana ka tharollo e theko e tlaase bakeng sa merero e hlokang ho qhala mocheso o sebetsang hantle empa e sa sebetse tlas'a maemo a feteletseng a mocheso kapa motlakase.

High Thermal-Conductive Aluminium PCB

Sebopeho sa Dielectric Layer: Mofuta ona oa aluminium PCB o sebelisa lesela la dielectric le entsoeng ka epoxy resin kapa mefuta e meng ea resin e nang le mocheso o phahameng oa mocheso. Ts'ebetso e ntlafalitsoeng ea mocheso oa lera la dielectric e lumella ho fetisoa ha mocheso hantle ho tloha ho likarolo tsa elektroniki ho ea poleiti ea motheo ea aluminium.

Lisebelisoa: Li-PCB tsa aluminium tse nang le mocheso o phahameng oa mocheso li loketse lisebelisoa tse matla haholo, tse kang lisebelisoa tsa motlakase, lisebelisoa tsa likoloi, le mabone a LED a khanyang haholo. Bokhoni ba bona ba ho laola mocheso ka katleho bo etsa hore ba tšoanelehe bakeng sa lisebelisoa tse hlahisang matla a mangata a mocheso, ho netefatsa ho tšepahala le ho phela nako e telele.

High-Frequency le Microwave Aluminium PCB

Sebopeho sa Dielectric Layer: Lera la dielectric ho li-PCB tsena le entsoe ka polyolefin resin kapa polyimide resin glass fiber prepreg. Lisebelisoa tsena li khethiloe bakeng sa ho lula ha tsona le tahlehelo ea dielectric e tlase, e leng thepa ea bohlokoa bakeng sa lits'ebetso tse phahameng tsa maqhubu le li-microwave.

Lisebelisoa: Li-PCB tsa aluminium tsa maqhubu a phahameng le li-microwave li etselitsoe ho sebelisoa RF (Radio Frequency), microwave, le lits'ebetso tsa dijithale tsa lebelo le holimo. Sena se kenyelletsa lisebelisoa tsa radar, li-antenna, le li-amplifiers tsa RF. Thepa e tlase ea dielectric kamehla le tahlehelo ea thepa ea dielectric e thusa ho fokotsa ho fokotseha ha lets'oao, ho etsa hore li-PCB tsena e be tse loketseng lits'ebetso tse hlokang botsitso ba matšoao a holimo.

Lisebelisoa tsa Aluminium PCBs

Li-Aluminium Printed Circuit Boards (PCBs) li bohlokoa ho lisebelisoa tsa elektronike tsa morao-rao ka lebaka la bokhoni ba tsona ba ho senya mocheso ka katleho, kahoo li sireletsa likarolo tsa elektronike ho tloha mocheso o feteletseng. Sena se etsa hore li batloe haholo lits'ebetsong moo taolo ea mocheso e leng bohlokoa. Ka tlase ke tse ling tsa libaka tsa mantlha tsa ts'ebeliso ea li-PCB tsa Aluminium, tse totobatsang ho feto-fetoha ha tsona le karolo ea bohlokoa liindastering tse fapaneng:

1. Libikone tsa Letšoao:

Li-PCB tsa Aluminium li sebelisoa ho li-beacon tsa matšoao bakeng sa ho tšoarella ha tsona le ho senya mocheso o sebetsang hantle, ho netefatsa ts'ebetso ea nako e telele esita le tlas'a ts'ebetso e tsoelang pele.

2. Lisebelisoa tsa Mabone a Ho Buoa:

Lits'ebetsong tsa bongaka, haholo-holo lisebelisoa tsa mabone a ho buoa, li-PCB tsa aluminium li khethoa hobane li khona ho boloka mocheso o pholileng, ho netefatsa ts'ebetso e sireletsehileng nakong ea ts'ebetso e telele ea ho buuoa.

3. Mekhoa ea Phetiso ea Matla:

Bokhoni ba bona ba ho sebetsana le mocheso o phahameng bo etsa hore aluminium PCB e be e loketseng bakeng sa litsamaiso tsa phetiso ea matla, tseo hangata li hlahisang mocheso o mongata.

4. Li-scanner tsa matla a phahameng:

Li sebelisoa ka har'a li-scanner tse nang le matla a phahameng, li-PCB tsa aluminium li netefatsa hore lisebelisoa li lula li pholile 'me li sebetsa hantle, li fokotsa kotsi ea ho futhumala ho feta tekano le tšenyo ea likarolo tse hlokolosi tsa ho hlahloba.

5. Li-Dashboards tsa Likoloi:

Li-PCB tsa Aluminium li fumaneha hangata ka har'a li-dashboard tsa likoloi, moo li kenyang letsoho mosebetsing le bophelo bo bolelele ba lipontšo le litsamaiso tsa elektroniki.

6. Mabone a ka Hare:

Thepa ea bona e ntle haholo ea ho felisa mocheso e etsa hore li-PCB tsa aluminium li phethahale bakeng sa lits'ebetso tsa mabone a kahare, ho kenyeletsoa libaka tsa bolulo, tsa khoebo le tsa indasteri.

7. Lisebelisoa tsa Matla:

Li-converter tsa matla, li-PCB tsa aluminium li thusa ho laola mocheso o hlahisoang nakong ea phetoho, ho netefatsa ts'ebetso e sebetsang hantle le ho thibela tšenyo ea mocheso.

Mabone a Theater Operating Theatre:

Joalo ka lisebelisoa tsa mabone a ho buoa, li-PCB tsa aluminium tse maboneng a ts'ebetso ea theatre li fana ka taolo e hlokahalang ea mocheso ho boloka maemo a mabone a nepahetseng ntle le ho chesa haholo.

Mabone a Naha:

Bakeng sa lits'ebetso tsa kantle joalo ka mabone a naha, li-PCB tsa aluminium li fana ka nako e telele e hlokahalang le ho felloa ke mocheso ho mamella maemo a leholimo a fapaneng ha li ntse li netefatsa ts'ebetso e ts'oanang ea mabone.

Tail Light Assemblies:

Indastering ea likoloi, li-PCB tsa aluminium li sebelisoa likopanong tsa leseli la mohatla bakeng sa bokhoni ba tsona ba ho senya mocheso ka katleho, ho netefatsa hore mabone a sebetsa ka mokhoa o sireletsehileng maemong a khanyang.

Mehopolo ea Moralo bakeng sa Aluminium PCBs

Ho theha li-PCB tsa aluminium ho kenyelletsa lintlha tse ikhethang ho netefatsa ts'ebetso ea tsona e nepahetseng le ts'epahalo. Ka lebaka la kaho ea bona e khethehileng le ts'ebeliso libakeng tse fapaneng tse batloang haholo, ho ela hloko lintlha tsa moralo ke ntho ea bohlokoahali. Karolo ena e tla shebisisa lintlha tsa bohlokoa tseo baqapi ba lokelang ho li ela hloko ha ba sebetsa le li-PCB tsa aluminium.

Tsamaiso ea Mocheso le Phetisetso ea Mocheso

Tsamaiso e sebetsang ea mocheso ke motheo oa moralo oa aluminium PCB. Sepheo se seholo ke ho fetisetsa mocheso ka katleho ho tloha likarolong tsa bohlokoa, e leng mosebetsi oo aluminium e loketseng hantle ka lebaka la mocheso o phahameng oa mocheso. Karoloana ena e tla tšohla kamoo bayemi ka optimize mocheso phetiso ka moralo moralo moralo, vias mogote, le khetho e loketseng ea insulating thepa.

Ho sebetsana le Katoloso ea Thermal

Li-PCB tsa aluminium, joalo ka thepa eohle, li katolosoa ka mocheso ha li pepesetsoa mocheso. Katoloso ena e ka baka khatello manonyellong le likarolo tsa solder, e leng se ka lebisang ho hloleheng. Baqapi ba tlameha ho ikarabella bakeng sa liphapang tsa li-coefficients tsa katoloso ea mocheso lipakeng tsa aluminium le thepa e 'ngoe ea PCB . Karolo ena e tla hlahloba maano a ho fokotsa likhatello tsena, joalo ka tšebeliso ea dielectric tse tenyetsehang kapa ho rala likarolo tsa thuso ea katoloso ka har'a boto.

Mehopolo ea Moralo oa Motlakase le Moralo

Moralo oa motlakase oa aluminium PCB o hloka moralo o hlokolosi oa ho ntlafatsa ts'ebetso ha o ntse o netefatsa polokeho. Sena se kenyelletsa ho tsamaisoa ka hloko ha litsela tsa morao-rao, ho behoa ha likarolo ho fokotsa tšitiso, le ho netefatsa hore ho na le ho kenngoa ho lekaneng pakeng tsa motheo oa aluminium le likarolo tsa conductive. Karoloana ena e tla akaretsa melaoana ena ea moralo oa motlakase, e totobatsang mekhoa e metle bakeng sa tlhophiso e sebetsang ea potoloho.

Khetho ea Boitsebiso le Stackup

Khetho ea lisebelisoa le moralo oa stackup li bohlokoa ho li-PCB tsa aluminium. Sena se kenyelletsa ho khetha mofuta o nepahetseng oa motsoako oa aluminium, lisebelisoa tsa dielectric, le masela a koporo. Khetho e 'ngoe le e' ngoe e ama ts'ebetso ea mocheso oa boto, ho tiea le litšobotsi tsa motlakase. Mona, re tla tšohla likhetho tse fapaneng tse fumanehang le mokhoa oa ho tseba motsoako o motle bakeng sa lits'ebetso tse ikhethileng.

Manufacturability le Menahano ea Kopano

Ho rala PCB ea aluminium ho boetse ho kenyelletsa ho nahana ka tlhahiso ea eona le boiketlo ba ho bokana. Sena se kenyelletsa ho utloisisa mefokolo ea lits'ebetso tsa tlhahiso, joalo ka ho cheka le ho tsamaisa litsela, le ho rala boto ho sebetsana le mathata ana. Ho feta moo, lintlha tse mabapi le solder le ho kenya likarolo holim'a substrate ea aluminium li bohlokoa ho netefatsa ts'ebetso ea tlhahiso e boreleli. Karolo ena e tla fana ka leseli mabapi le ho rala li-PCB tsa aluminium tse sa sebetseng hantle feela empa hape li ka hlahisoa le ho bokana.

fihlela qeto e

Ka kakaretso, li-PCB tsa aluminium li emela tsoelo-pele e kholo lefapheng la potoloho ea elektroniki. Melemo ea tsona, ho tloha ho tšoarellang ho eketsehileng ho isa tsamaisong e phahameng ea mocheso, li etsa hore li be tsa bohlokoa haholo lisebelisoa tsa elektroniki tsa sejoale-joale. Ha re ntse re shebile bokamoso, ho hlakile hore li-PCB tsa aluminium li tla tsoela pele ho bapala karolo ea bohlokoa phetohong ea lisebelisoa le litsamaiso tsa elektroniki.