Matanho masere Ekugadzira PCB Yakakwana yeAluminium

PCB yearuminiyamu iripo nekuda kwechimwe chikonzero: kubvisa kupisa mudunhu. Nekutsiva FR-4 core inodziisa simba nesimbi, bhodhi redunhu rearuminiyamu rinobvisa kupisa kubva kumagetsi uye rinopararira mubhodhi, ndosaka magadzirirwo e LED, magetsi, uye mota anovimba nayo. Asi "aruminiyamu PCB" inotsanangura chimiro chakaiswa zvidimbu zvakanaka chete nechikamu chayo chisina kusimba, uye maitiro ekugadzira ane matanho asingaonekwe pamutsetse weFR-4 wakajairika. Gwaro iri rinofamba nematanho masere ekugadzira PCB yearuminiyamu, rozotsanangura chikamu che dielectric chinosarudza kana bhodhi richishanda zvechokwadi - uye mitemo yekugadzira nezvikanganiso zvinoparadzanisa PCB yakakwana yealu kubva pakukundikana kwemunda.

1. Chii chinonzi Aluminum PCB?

Aruminiyamu PCB ibhodhi redunhu rakadhindwa rine simbi rakavakwa nezvikamu zvitatu zvakasungwa: jira repamusoro redunhu remhangura , dielectric inofambisa kupisa iri pakati, uye ndiro yesimbi iri pasi payo. Kuyerera kwemagetsi mumhangura, dielectric inoidzivirira nemagetsi uku ichipisa, uye aruminiyamu inoshanda senzvimbo yekuparadzira kupisa yakavakirwa mukati uye heatsink.

Nei vagadziri vachisarudza aruminiyamu pane FR-4

Standard FR-4 inodzivirira kupisa, saka kupisa kunobva mumudziyo wemagetsi kunoungana uye kunopfupisa hupenyu hwechikamu. Kuchinjana kuenda kuhwaro hwearuminiyamu — moyo wePCB yesimbi — kunoita kuti kupisa kubude nyore, ukuwo kuchiwedzera kuomarara kwemuchina uye kugadzikana kwemativi. Chinhu chakakosha ndechekuti maPCB earuminiyamu anowanzova nelayer imwe chete uye anotevera nzira yakasiyana yekugadzira, iyo matanho masere ari pazasi anogadzira kongiri. Kuti uwane primer yakazara pakuvaka, ona kuti PCB yearuminiyamu chii.

2. Matanho Masere Ekugadzira PCB yeAluminium

Maitiro acho anoshandura laminate yearuminiyamu yakaputirwa nemhangura kuita bhodhi rakapedzwa, rakaedzwa. Danho rega rega rine chibato chemhando yepamusoro chakagadzirirwa kuvakwa kwesimbi-pakati.

1. Kusarudzwa kwezvinhu. Sarudzai aruminiyamu ine mhangura yakaputirwa nesimbi — huremu hwemhangura, rudzi rwe dielectric uye ukobvu, uye aruminiyamu ine alloy uye ukobvu — kuti ienderane nezvinodiwa nekupisa uye zvemagetsi.
2. Kucheka kusvika pahukuru. Cheka kana kucheka laminate kuti ikwane saizi yepaneru, uchiibata kuti isaboore kana kukwenya aruminiyamu.
3. Kuchera. Chikamu chekuboorera uye maburi ekuisira; nekuti akawanda maPCB ealuminium ane divi rimwe chete, maburi haaputirwe nesimbi, uye kuboorera kunodzorwa kudzivirira maburi uye kukuvara kwe dielectric.
4. Kugadzira mapatani edunhu. Isa laminate dry-film photoresist, iratidze kuburikidza nemifananidzo, uye igadzire kuti igadzire denderedzwa remhangura.
5. Kucheka. Bvisa mhangura yakafumurwa kuti ubve mudenderedzwa, wobva wabvisa resist; etch control inodzivirira zvinhu zvidiki uye upamhi hwetrace.
6. Chifukidzo chesolder. Isa chifukidzo chesolder pamusoro pemhangura wochiisa padhishi, uchisiya mapedhi akavhurika uye uchidzivirira circuit.
7. Sirikini yesilika (ngano). Dhinda ngano yechikamu, zviratidzo, uye zviziviso.
8. Kupedzisa pamusoro, kuongorora, uye kuyedza. Isa pamusoro pechinhu (HASL, ENIG, kana OSP), fambisa bhodhi kusvika parinoperera, wobva waedza nemagetsi woongorora.

Danho rinogumbura vanhu

Kuronga nekuchera aruminiyamu hakuna kufanana nekugadzira FR-4 — simbi inogadzira kupisa nemaburi, ichida maturusi akakodzera uye mafeeds, uye dielectric haifanirwe kutsemuka kana kuputirwa mumaburi. PCB yearuminiyamu yakakwana inoenderana nekuwana matanho emakanika (3 ne8) uye kubata dielectric nemazvo, kwete kungofungidzira circuit.

3. Dielectric Layer: Uko Aluminum PCB Quality Inokundwa kana Kurasika

Rutivi rumwe chete runoparadzanisa PCB yearuminiyamu yakanaka kubva kune iri pakati nepakati idielectric. Ine mabasa maviri akasiyana: kudzivirira mhangura kubva kuaruminiyamu nemagetsi, uye kuendesa kupisa kubva kumhangura kuenda kuaruminiyamu. Mabasa iwayo anodhonza mativi akasiyana.

Kutengeserana kwekupisa nemagetsi

Kufambiswa kwemhepo kwe dielectric — kazhinji kacho kunosvika 1–3 W/m·K, kwakakwira pazvinhu zvepamusoro — kunoratidza kuti kupisa kunoyambuka sei, uye ndiyo bhonzo chaiyo, sezvo aruminiyamu pachayo ichifambisa kupisa zviri nani. Dielectric yakatetepa inodzora kupisa zviri nani asi inoramba magetsi mashoma , nepo yakakora ichidzivirira kupisa zvakanyanya asi ichipisa zvakanyanya. Kusarudza rudzi rwe dielectric uye ukobvu ndiyo sarudzo yeinjiniya yepakati mune chero MCPCB dielectric layer , uye inofanira kuenzaniswa nekupararira kwesimba rebhodhi uye voltage yaro yekushanda. Taura dielectric yekushandisa — kwete nekutadza kushandisa yakachipa kana yakatetepa — uye bhodhi rinoshanda; ita zvisirizvo uye rinopisa zvakanyanya kana kuparara.

Mhuri yePCB ine simbi inovakirwa pamabhodhi earuminiyamu yave ichikosheswa kubva pamadhora mabhiriyoni gumi nematatu kusvika gumi nematanhatu ($13–16 bhiriyoni), uye kukura kwayo kunonyanya kukonzerwa nemwenje ye LED (inenge 45% yezvinodiwa) uye magetsi emotokari (inenge 30%) - mashandisirwo maviri aya anokwidza huwandu hwearuminiyamu-PCB kumusoro sezvo mwenje uye maEV achipa magetsi.

"Pabhodhi rearuminiyamu, mhangura nehwaro hwesimbi ndizvo zviri nyore - dielectric ndipo panonamirwa kupisa. Shandisa mainjiniya ako ipapo: sarudza dielectric yesimba nevoltage, uye bhodhi rinoita basa raro."

— injinjini yePCB yesimbi-core

Kuverenga nhamba dzekupisa

Nhamba dzinokosha dziri nyore kuenzanisa. FR-4 inoita kupisa pa0.3 W/m·K ; dielectric yePCB yearuminiyamu inomhanya ne1–3 W/m·K (ma dielectric epamusoro anosvika ~5–12), uye hwaro hwearuminiyamu pachahwo huri pa150–200 W/m·K . Nekuti dielectric ndiyo inonyanya kudzorwa mudura, inotonga resistance yekupisa yebhodhi (inoratidzwa mu °C/W kubva panosangana kusvika pahwaro). Ndosaka dielectric yakatetepa, ine conductivity yakakwira ichidzikisa tembiricha yemudziyo wemagetsi - uye nei kusundidzira dielectric yakatetepa zvakanyanya kuti isakwanise kudzinga nhamba dzekupisa pakupedzisira kuchideredza voltage yekupwanyika kwayo inofanirawo kupa. Tsanangudzo chaiyo inoenzanisa maviri iwayo nesimba rechokwadi rebhodhi uye voltage yekushanda.

4. Mitemo yeAluminium PCB Design uye Zvikanganiso Zvakajairika

PCB yealuminium yakagadzirwa zvakanaka inoramba ichikundikana kana dhizaini ikasateerera chokwadi chekuvakwa kwesimbi-pakati. Mitemo mishoma inodzivirira matambudziko mazhinji.

Mitemo yekugadzira inokosha

• Chengetedza zvinhu zvemhangura nenzvimbo zviri mukati mehuremu hwemhangura hwakasarudzwa.
• Bata nzvimbo pakati pemhangura nemaburi emupendero webhodhi/maburi ekuisira kuitira kuti dielectric irambe yakaparadzana nearuminiyamu.
• Isa zvinhu zvinopisa zvakanyanya padyo nearuminiyamu.
• Ronga bhodhi uye gadziridzo yenzira yekufambisa uye yekuisa chitarisiko cheheatsinking kubva pakutanga.

Zvikanganiso zvakajairika pakugadzira nekuongorora

• Kukuvadzwa kweDielectric kana smear kubva pakuboorera/kuronga nzira, izvo zvinokanganisa kuparadzaniswa.
• Mabhero paaruminiyamu zvinokanganisa kukodzera uye chimiro chekupisa.
• Delamination pakati pezvikamu kubva pakusasimba kwelamination kana kushushikana kwekupisa.
• Kuderedzwa kwemagetsi ekuputsika kubva pa dielectric yakatetepa zvakanyanya kana kuti yakakuvara.
• Warping kubva pakugadzirisa zvisina kuenzana kwechigadziko chesimbi.

Zvizhinji zveizvi zvinodzokera kumashure kumatanho emakanika uye sarudzo ye dielectric, ndosaka tambo yesimbi-core ichiitwa uye ichiongororwa zvakasiyana netambo yeFR-4 - nzira dzekukundikana dzinogara musimbi uye dielectric, kwete mhangura.

5. Aluminium PCB Manufacturing pa Highleap

Mabhodhi earuminiyamu ibasa remazuva ese pamutsetse wedu wesimbi-core, uye hunhu hunobva pakubata matanho e dielectric nemechanical seakakosha. KuHighleap tinosarudza aruminiyamu laminate yakaputirwa nemhangura zvichienderana nezvinodiwa nekupisa uye voltage, kudzora kuboora uye kufambisa simbi kudzivirira maburi nekukuvara kwe dielectric, uye kuongorora kupatsanurwa uye kupedzisa bhodhi risati rasvika. Pabasa re LED nemwenje, tinovaka chivakwa chimwe chete chakagadzirirwa kuburitsa chiedza uye kubvisa kupisa, sezvakakurukurwa mubasa redu re aruminiyamu LED PCB.

Kana uine aruminiyamu PCB — yemwenje ye LED, simba, mota inodhonza, kana mota — tumira dhizaini uye nhamba dzako dzesimba nemagetsi uye isu tichakurudzira dielectric, kusimbisa mitemo yekugadzira, uye kuvaka bhodhi rinofambisa kupisa.

Tora Bhokisi rePCB yako yeAluminium

6. Mibvunzo Inowanzo bvunzwa Nezve Aluminium PCB

Ndeupi musiyano uripo pakati pePCB yearuminiyamu nePCB yesimbi-core?

Aruminiyamu PCB ndiyo inonyanya kushandiswa pakugadzira simbi-core PCB (MCPCB). MCPCB ndiyo mhando yakakura: hwaro hwesimbi hunogona kuva aruminiyamu (hwakanyanya kushandiswa uye husingadhuri), mhangura (inoshanda zvakanyanya pakupisa asi inodhura uye inorema), kana simbi. Saka aruminiyamu PCB yega yega iMCPCB, asi haisi MCPCB yega yega inoshandisa hwaro hwearuminiyamu.

Sei kugadzira aruminiyamu PCB kwakasiyana neFR-4?

Matanho ekuona dunhu akafanana, asi matanho emakanika akasiyana. Kuboora nekufambisa hwaro hwesimbi kunogadzira kupisa nemaburi uye kunoda maturusi akasiyana uye mafeed; dielectric inofambisa kupisa haifanirwe kutsemuka kana kuputirwa mumaburi; uye nekuti akawanda maPCB earuminiyamu ane divi rimwe chete, maburi haaputirwe nehwaro hwesimbi. Kunyangwe kubata pani isina kusvibisa aruminiyamu chikamu chemaitiro acho.

Sei chikamu che dielectric chakakosha muPCB yearuminiyamu?

Dielectric inofanira kudzivirira mhangura kubva muaruminiyamu ichipisa pakati payo, uye zvinangwa izvozvo zvinopesana. Dielectric yakatetepa inodzora kupisa zviri nani asi inoramba iine voltage shoma, saka mhando yayo nehukobvu hwayo zvinoenderana nekubviswa kwesimba rebhodhi uye voltage yekushanda - sarudzo yepakati pekugadzira mubhodhi resimbi-core.

Ko maPCB ealuminium ane jira rimwe chete here kana kuti akawanda?

Mazhinji maPCB ealuminium ane jira rimwe chete, ane jira rimwe chete remhangura pamusoro pechigadziko che dielectric nearuminiyamu. Kune magadzirirwo earuminiyamu akawanda ane jira rakawanda asi haawanzo kuwanikwa uye anonyanya kushandiswa pakugadzira.

MaPCB ealuminium anoshandiswa kupi?

Kupisa kunofanira kubviswa chero kupi zvako kubva pabhodhi diki: mwenje we LED nemamodule, magetsi ne converters, mota dzinofambisa magetsi, electronics dzemotokari, uye mamwe mashandisirwo akafanana emagetsi akawandisa uko FR-4 yaizopisa zvakanyanya.

Maburi anogona kuputirwa nearuminiyamu PCB here?

Mupurasitiki yearuminiyamu yakajairika ine mativi maviri, maburi haaputirwe nesimbi, sezvo aruminiyamu iri chigadziko chinofambisa mvura kwete chigadziko chemukati. Magadzirirwo anoda maburi akafukidzwa anoshandisa simbi dzakasiyana-siyana kana kuti multilayer.

Ndezvipi zvinhu zvinopera pamusoro pemapurasitiki ealuminium zviripo paPCBs?

Zvinhu zvinogadzirwa zvinozivikanwa ndeizvi HASL, ENIG, uye OSP, zvinosarudzwa kuti zvigone kusungirirwa, kugara kwenguva refu, kusatsetseka, uye mutengo wazvo zvakafanana nezviri paFR-4. ENIG inokodzera zvinodiwa pakuisa simbi zvakanaka uye flat-pad, nepo HASL isingadhuri pabasa rose.