Umhlahlandlela Wenqubo Yefektri Ye-Aluminium LED PCB

Iningi lonjiniyela lithola i-aluminium LED PCB njengephaneli eliqediwe futhi ababoni ukuthi kwenzekeni kuyo phakathi kokuthunyelwa kwefayela le-Gerber kanye nokulethwa. Leso sikhala sibalulekile, ngoba izinqumo ezenziwa ngesikhathi sokukhiqiza — izinga lokushisa lokucindezela i-dielectric, isivinini sokubhoboza, i-solder mask chemistry, ukusetshenziswa kwephaneli — zibonakala ekusebenzeni kokushisa kwebhodi, ukuthembeka kokuhlukaniswa, kanye nesivuno sokuhlanganiswa. Lesi sihloko sidlula ochungechungeni lokukhiqiza lwefektri ye-aluminium LED PCB futhi sichaza lapho isinyathelo ngasinye sethula khona umkhawulo wengozi noma wekhwalithi.

Indlela Ifektri ye-Aluminium LED PCB Ehluke Ngayo Esitolo Esijwayelekile se-PCB

Ukuzulazula kwesihloko

1. Indlela Ifektri ye-Aluminium LED PCB Ehluke Ngayo Esitolo Esijwayelekile se-PCB
2. Isinyathelo ngesinyathelo: Ukugeleza Kokukhiqiza kwe-Aluminium LED PCB
3. Ukusetshenziswa Kwephaneli kanye Nomphumela Wayo Ezindlekweni Zeyunithi
4. Izindinganiso Zokuhlola ze-AOI kanye Nogesi Zamabhodi Ensimbi
5. Amandla Okukhipha e-Highleap Electronics
6. Indlela Izinqumo Zefektri Ezibonakala Ngayo Emgqeni Wakho Womhlangano
7. Imibuzo Evame Ukubuzwa

Umehluko awuyona into yokuhlobisa. Izinhlobo ezintathu zenqubo eziyisisekelo zihlukanisa indawo yensimbi eyinhloko ekusebenzeni okujwayelekile kwe-FR-4:

Ukubhoboza : I-aluminium alloy iyaklwebheka kumathuluzi e-carbide. Amafektri asebenzisa i-aluminium ohlelweni olufanayo lokubhoboza njenge-FR-4 abona ukuguguleka kwe-bit okusheshisiwe, izimbobo ezinkulu, kanye nokubhoboza ebusweni bokungena nobokuphuma. Imigqa ye-aluminium LED PCB enikezelwe isebenzisa amathuluzi e-PCD (polycrystalline diamond) noma ama-geometri e-carbide aguquliwe anezinga lokuphakelwa eliphansi.

I-Lamination : Ingqimba ye-dielectric phakathi kwe-foil yethusi kanye nesisekelo se-aluminium iyinhlanganisela ye-polymer eqhuba ukushisa, hhayi i-prepreg ejwayelekile. Idinga iphrofayili ethile yokulungisa — izinga lokushisa, ingcindezi, kanye nesikhathi sokubamba esifanelana nokuziphatha kwe-dielectric's Tg kanye nokugeleza kwe-resin. Ukungafani kahle kudala izikhala, ukubopha okungaphelele, noma ukuhlukahluka kobukhulu, ngakunye okonakalisa kokubili ukuhanjiswa kokushisa kanye ne-voltage yokuphuka.

Imaski yokusoda : Ukunamathela okujwayelekile kwe-LPSM (imaski yokusoda ekwazi ukuthathwa isithombe) ku-aluminium akuthembekile ngaphandle kokulungiswa kwendawo. Amafektri angasebenzisi isinyathelo sokwelashwa kwendawo ngomshini noma ngamakhemikhali ngaphambi kokusetshenziswa kwemaski akhiqiza amabhodi lapho imaski yokusoda ihlukana khona ngesikhathi sokugeleza kabusha noma ukuguga kokushisa. Buyekeza izinselele ezivamile zokukhiqiza ze-MCPCB ukuze uqonde ukuthi le modi yokuhluleka ivela kangaki ekubuyiselweni kwensimu.

Isinyathelo ngesinyathelo: Ukugeleza Kokukhiqiza kwe-Aluminium LED PCB

Isinyathelo 1 — Ukuhlolwa kwezinto ezifakiwe Isitokwe sesisekelo se-aluminium sihlolwa ukuthi singakanani (ngokuvamile singu-1050 noma u-5052), ukubekezelelana kobukhulu, kanye nesimo sobuso. Ama-Dielectric roll aqinisekiswa ngokuhambisana nencazelo yokuthenga — izinga lokuqhuba ukushisa, i-dielectric constant, kanye ne-breakdown voltage nge-lot ngayinye.

Isinyathelo 2 — Ukulungiswa kwe-laminate embozwe ngethusi Kumabhodi anesendlalelo esisodwa, isisekelo se-aluminiyamu sifika siboshelwe kusengaphambili ku-dielectric kanye ne-copper foil njenge- PCB core laminate yensimbi . Ngezidingo zokuqhuba ukushisa ngokwezifiso noma ama-aluminium gauge angewona ajwayelekile, ifektri ibopha i-stack endlini isebenzisa umshini wokucindezela i-lamination.

Isinyathelo 3 — Ukuthwebula Izithombe Nokuqopha Isendlalelo sethusi simbozwe nge-photoresist, sivezwe nge-photomask ehambisana nephethini yesekethe, futhi siqoshwe ngamakhemikhali. Isisekelo se-aluminium kumele sivikelwe ngokugcwele ngesikhathi sokuqopha — noma yikuphi ukuxhumana kwe-electrolyte ne-aluminium kubangela ukugqwala. Ukwakheka kwe-panel masking kanye ne-rack kubalulekile kulesi sinyathelo.

Isinyathelo 4 — Ukubhoboza imigodi yokuxhuma noma ihadiwe yokufaka kubhobozwa ngamathuluzi alinganiswe nge-aluminium. Ama-PCB amaningi e-aluminium LED e-single-layer awabhobozwa nge-signal vias — imigodi yomshini kuphela. Izinto zokufaka amaphaneli kanye nezinto zokusekela zikhethwa ukuze kuncishiswe ukubhoboza kwe-aluminium ekuphumeni kwemigodi.

Isinyathelo 5 — Amaphaneli okufaka amaphuzu angu-V kanye nokuqondisa afakwa amaphuzu noma ahlelwe ngokwezinhla zebhodi ngalinye. I-engeli kanye nokujula kwe-blade yokufaka amaphuzu angu-V kulinganiswa ukuze kulinganiswe i-aluminium gauge. Ukujula okunganele kwe-score kubangela ukwehluleka kwe-panel breakout; ukujula ngokweqile kwenza buthaka isisekelo se-aluminium emgqeni we-score futhi kwethula ingozi ye-warpage.

Isinyathelo 6 — Ukusetshenziswa kokuqeda ubuso i-ENIG, i-LF-HASL, noma i-OSP kufakwa kuma-copper pads kuphela, hhayi isisekelo se-aluminium. I-Maskant kanye nomklamo wezinto ezisetshenziswayo kuvimbela i-chemistry yokuqeda ubuso ukuthi ingaxhumani ne-aluminium. Hlola izinketho zokuqeda ubuso zama-PCB e-aluminium LED nokuthi ngayinye ithinta kanjani ukushintshwa, isikhathi sokuphelelwa yisikhathi, kanye nokuhambisana kwe-SMT.

Isinyathelo 7 — Imaski yokusongelwa Ngemva kokulungiswa kwendawo (ukuskena ngomshini noma i-microetch), imaski yokusongelwa ewuketshezi ethwetshulwa ngesithombe iyasetshenziswa, ivezwe, futhi ithuthukiswe. Izinga lokushisa lokuhlanza kumele lihlale ngaphansi kwezinga lokushisa eliphezulu lenqubo ye-dielectric — ngokuvamile 150–160°C — ukuze kugwenywe ukuwohloka kwempahla ye-dielectric.

Isinyathelo 8 — Ukuhlolwa kukagesi kanye ne-hi-pot Yonke ibhodi ihlolwa ukuqhubeka kwayo kanye nokuhlukaniswa kwayo. Ukuhlolwa kwe-Hi-pot kusebenzisa i-1500–3000 V AC noma i-DC phakathi kwesekethe yethusi kanye nesisekelo se-aluminium ukuqinisekisa ubuqotho be-dielectric. Amabhodi ahlulekayo i-hi-pot ayasuswa — ayikho indlela yokulungisa kabusha ukwehluleka kwe-dielectric breakdown.

Isinyathelo 9 — Ukuhlolwa kokugcina kanye nokupakisha i-AOI kuqinisekisa ukumbozwa kwemaski ye-solder kanye ne-geometry yamaphedi. Ukuhlolwa okubonakalayo kuhlola amaphutha obuso, ikhwalithi yomphetho, kanye nokufundeka kophawu. Amabhodi apakishwa ezikhwameni ezingezona ezimile ezine-desiccant, afakwe i-foam noma i-bubble wrap ukuvimbela umphetho we-aluminium ukuthi ungalimazi amabhodi aseduze.

Ukusetshenziswa Kwephaneli kanye Nomphumela Wayo Ezindlekweni Zeyunithi

Indlela ifektri efaka ngayo amaphaneli ebhodini lakho inquma ngqo ukusebenza kahle kwezinto kanye nezindleko zeyunithi ngayinye. Imojula ye-LED eyisikwele ifanela iphaneli ye-aluminium engunxande enokungcola okuncane; i-LED array eyindilinga ingakhiqiza izicucu ezingu-30–40% uma ukwakheka kwamaphaneli kungalungiswanga ngokujikeleza nokwakha izidleke.

I-Highleap Electronics isebenzisa ukulungiswa kwephaneli kuzo zonke izi-oda, futhi isu lephaneli le-PCB labelwana ngalo namakhasimende njengengxenye yamadokhumenti esilinganiso ukuze ingxenye yezindleko zezinto ezibonakalayo ibonakale.

Izindinganiso Zokuhlola ze-AOI kanye Nogesi Zamabhodi Ensimbi

Ukuhlolwa okuzenzakalelayo kwe-optical kuma-PCB e-aluminium LED kuhlanganisa:

• Ukumbozwa kwemaski okuhlanganisiwe phezu kwemigqa yethusi kanye nezikhala ezizungezile zephedi
• Ukuhambisana kwe-geometry yephedi nedatha ye-Gerber
• Ukubhaliswa kwesikrini se-Silkscreen
• Umphetho webhodi kanye nekhwalithi yesikhala

Ukuhlolwa kwe-X-ray kuyatholakala kodwa akudingeki kakhulu kuma-PCB e-LED e-aluminium anesendlalelo esisodwa ngaphandle kokuthi kuhlanganiswe izingxenye ezineziphetho ezifihliwe (abashayeli be-QFN LED). Isango lekhwalithi eliyinhloko lama-PCB e-LED e-aluminium angenalutho ukuhlolwa kwe-hi-pot, okungenakufakwa esikhundleni sokuhlolwa kokukhanya.

Amandla Okukhipha e-Highleap Electronics

I-Highleap isebenzisa amandla okukhiqiza e-MCPCB azinikele kanye nemigqa ye-FR-4 kanye ne -PCB eguquguqukayo . Ukukhishwa kwe-PCB ye-aluminium yanyanga zonke kudlula amaphaneli angu-50,000 ngokwezincazelo ezijwayelekile. Ukukhiqizwa okusheshayo kwe-NPI kanye nokusebenza kobunjiniyela kuyatholakala ezinhlotsheni eziningi ze-PCB ye-aluminium LED ezinesikhathi sokuhola sezinsuku ezingu-5-7 zokusebenza.

Indlela Izinqumo Zefektri Ezibonakala Ngayo Emgqeni Wakho Womhlangano

Izinguquko ezine zokukhiqiza ezithinta ngqo isivuno sakho sokuhlanganiswa kwe-SMT kuma-PCB e-aluminium LED:

1. Ukwehluka kobukhulu be-dielectric: amabhodi anobukhulu obungaphandle ±10% ajika ngesikhathi sokugeleza kabusha, okubangela ukuthi iphedi ivuleke
2. Ukufana kokuqedwa kobuso: Ukungahambisani kwe-HASL kubangela ukuhlangana kwama-LED pad amancane; i-ENIG evela emabhafini okucwilisa angalawulwa ikhombisa ukugqwala kwe-nickel okuvimbela ukumanzisa
3. Ukubhaliswa kwemaski ye-solder: imaski ebhaliswe kabi iveza ithusi ngaphandle kwendawo ehlosiwe, okubangela amabhulukwe amafushane ahlanganisiwe
4. Ukubhoboza emigodini yokubhoboza: ama-burrs e-aluminium angahlanzwa adala izindlela zokujikeleza okufushane lapho amabhodi efakwa ezindlini ze-heatsink ze-aluminium ezinezibambo zokuhambisa umoya

Ukuxoxa ngalezi ziguquguquko nefektri yakho ngaphambi kokukhiqiza — hhayi ngemva kokuhlanganiswa kokuqala — kuwumsebenzi wokubuyekezwa kwe-DFM okuqondene nomklamo we-MCPCB.

Imibuzo Evame Ukubuzwa

Yiziphi izinhlobo ze-aluminium ezisetshenziswa ezisekelweni ze-aluminium LED PCB? I-1050 (ubumsulwa obungu-99.5%) kanye ne-5052 (i-Al-Mg alloy) zivame kakhulu. I-1050 inikeza ukuqhutshwa kokushisa okungcono kancane (~220 W/m·K). I-5052 inamandla aphezulu okudonswa kanye nokumelana nokugqwala okungcono, okwenza ithandwe kakhulu ekusetshenzisweni kokukhanya kwangaphandle. I-6061 isetshenziselwa imiklamo ye-hybrid ye-heatsink-PCB yesakhiwo.

Kungani kudingeka ukuhlolwa kwe-hi-pot kuma-PCB e-aluminium LED? Isisekelo se-aluminium sithwala amandla e-chassis kumadivayisi amaningi e-LED. Ukuqhekeka kwe-dielectric phakathi kwesekethe yethusi nesisekelo se-aluminium kubangela ukufinyela kukagesi ku-chassis — ingozi yokuphepha kanye nokwehluleka komkhiqizo ngokushesha. Ukuhlolwa kwe-hi-pot ku-1500–3000 V kuqinisekisa ukuthi ungqimba lwe-dielectric lunikeza ukuhlukaniswa okuthembekile ku-voltage yokusebenza kanye ne-margin.

Yisiphi isikhathi esijwayelekile sokukhiqizwa kwe-aluminium LED PCB? Imininingwane ejwayelekile (ungqimba olu-1, i-aluminium engu-1.0–1.6 mm, i-ENIG noma i-HASL surface finish): Izinsuku zokusebenza ezingu-7–10 ngamanani okukhiqiza. Ukusebenza kwe-NPI okusheshayo: Izinsuku zokusebenza ezingu-5–7. Amamaki e-dielectric enziwe ngokwezifiso noma ukujiya kwe-aluminium okungejwayelekile kungangeza izinsuku zokusebenza ezingu-3–5 zokuthengwa kwezinto.

Ingabe ama-PCB e-aluminium LED angahlanganiswa emgqeni ofanayo we-SMT namabhodi e-FR-4? Yebo, ngokulungiswa. Isisekelo se-aluminium sinesisindo sokushisa esiphezulu kune-FR-4, ngakho-ke isivinini sokuhambisa i-oven kabusha kanye nezilungiselelo zokushisa kwendawo kudingeka zilinganiswe kabusha ukuze kufezwe izinga lokushisa elilinganayo lephedi. Amafektri anolwazi ekuhlanganisweni kwe -PCB ye-aluminium agcina amaphrofayili okushisa ahlukene amabhodi ensimbi ayinhloko.