Gwaro reKutsanangurwa kweAluminium LED PCB rakagadzirwa neCustom Aluminium

Izwi rekuti "custom aluminum LED PCB" rinosanganisira zvikumbiro zvakasiyana-siyana - kubva pabhodhi risingawanzoonekwi kusvika kune 3.0 W/m·K dielectric inoshanda nemhangura ye3 oz. Hazvisi zvese zvikumbiro izvi zviri nyore, uye zvimwe "sarudzo" dzakashambadzirwa dzakaganhurirwa munzira dzinokanganisa nguva yekushanda uye kushanda kwekupisa. Chinyorwa chino chinoratidza zvinogoneka kugadziriswa mukugadzirwa kwePCB yealuminium LED, uko kuchinjana kunoonekwa, uye kuti ndeapi maparamita ane hunyanzvi kana kuti maitiro akaganhurirwa.

Hwaro hweAruminiyamu: Chiwanikwa, Ukobvu, uye Kupedzisa

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1. Hwaro hweAruminiyamu: Chiwanikwa, Ukobvu, uye Kupedzisa
2. Dielectric Layer: Kugadzirisa Kwakakosha Kwazvo
3. Kurema kwemhangura: Kugona Kutakura Iye Zvino vs. Kugadziriswa kweEtch
4. Rondedzero yeBhodhi uye Maumbirwo
5. Sarudzo dzeKupedzisa Pamusoro peAluminium LED PCBs
6. Ruvara rweMask yeSolder: Zvinoreva Kushanda Kunopfuura Runako
7. Zvisingagone Kugadziriswa
8. Kuraira Magadzirirwo Akagadzirwa Nemunhu: Zvekuisa MuRFQ Yako
9. FAQ

Hwaro hwearuminiyamu ndiyo inonyanya kukanganiswa pakugadzirisa zvinhu. Zvinhu zvitatu zvinokosha:

Chiyero che alloy :

• 1050 (99.5% Al): kutenderera kwekupisa kwakanyanya (~220 W/m·K), kunyorova, simba rakaderera — sarudzo yakajairika yemagadzirirwo anofambiswa nekupisa
• 5052 (Al-Mg): ~140 W/m·K, simba rakakwirira rekudhonza uye kuramba ngura — inofarirwa munzvimbo dzinodengenyeka uye zvigadzirwa zvekunze
• 6061 (Al-Mg-Si): ~170 W/m·K, kuomarara kwakanyanya kwemuchina — inoshandiswa apo PCB inoshandawo sechinhu che heatsink chechimiro

Ukobvu : Hurefu hwakajairika hunobva pa 0.8 mm kusvika 3.0 mm. Mabhodhi akatetepa kupfuura 1.0 mm anoda dhizaini yekungwarira yeV-score kana dhizaini yenzira yekushandisa kuti asakanganiswa nehwaro. Mabhodhi akakora kupfuura 2.0 mm anowedzera huremu hwese hwekubatanidza uye anogona kuda shanduko dzezvisungo zvechisungo muchigadzirwa chekupedzisira.

Kugadziriswa kwepasi pevhu : Pasi pearuminiyamu inozorwa (anodized aluminium base) panowanikwa magadzirirwo apo pasi pebhodhi panosangana neheatsink inofambisa mvura uye panoda kupatsanurwa. Anodizing inowedzera 10–20 µm padivi uye inoshanda sechikamu chechipiri che dielectric — inobatsira pakugadzira magadzirirwo maviri asi inowedzera matanho ekugadzirisa.

Dielectric Layer: Kugadzirisa Kwakakosha Kwazvo

Chidimbu che dielectric chinotsanangura kuramba kupisa, voltage yekuzviparadzanisa, uye maitiro ekushanda. Apa ndipo panowanikwa musiyano mukuru wekushanda mumaPCB ealuminium substrate.

Chinhu chakakosha: ma dielectric ekupisa akakwira anotetepa kana paine voltage yakaenzana yekupwanyika, nekuti ma filler ekupisa akakwira anozadzwa neceramic uye simba re dielectric pa unit imwe neimwe ukobvu hwakaderera pane masisitimu e polymer akajairwa. Kutsanangura 3.0 W/m·K pa 100 µm ukobvu zvinoreva voltage yakaderera yekuparadzanisa pane 1.0 W/m·K pa 100 µm. Kurukura nezvekuchinjana nemugadziri wako panguva yekuongorora dhizaini yePCB yesimbi.

Kurema kwemhangura: Kugona Kutakura Iye Zvino vs. Kugadziriswa kweEtch

MaPCB e LED e aruminiyamu akajairika anoshandisa mhangura ine 1 oz (35 µm). Mabhokisi matatu anoda mhangura inorema:

2 oz mhangura (70 µm) : Tambo dze LED dzinotakura 2–5 A pa trace. Dzakakodzera ma LED akawanda ane simba guru mumaindasitiri nemabhizinesi.

3 oz copper (105 µm) : LED arrays ine 5–10 A current, kana kana ichipisa zvine resistive mu traces zvinogona kuwedzera zvakanyanya ku LED thermal load. Highleap Electronics inogadzira aruminiyamu LED PCBs mumhangura inorema kusvika 3 oz.

Kuchinjana : mhangura inorema inoderedza kutsanangurwa kwenzvimbo shoma. Pa 3 oz, kutsanangurwa/nzvimbo shoma inowanzova 6/6 mil zvichienzaniswa ne 4/4 mil pa 1 oz. Kana LED driver yako IC ine ma fine-pitch pads ari pedyo ne high-current traces, sarudzo ye copper huremu inorambidza marongerwo acho.

Rondedzero yeBhodhi uye Maumbirwo

Mabhodhi asina kutenderera — akaita sedenderedzwa, ane hexagonal, akaita seL, kana kuti akagadziriswa — anotsigirwa zvizere asi anokanganisa kushandiswa kwezvinhu uye kuoma kwenzira yekushandisa. Kune mapaneru e LED ane nzvimbo yakakura (>300 × 300 mm), tarisa saizi yepamusoro yepaneru yearuminiyamu yefekitori. Vamwe vagadziri vanovhara 400 × 500 mm yearuminiyamu; mamwe anosvika 600 × 800 mm. Kune mabhodhi earuminiyamu ane nzvimbo imwe chete , dhizaini yekunze inofanirawo kutsanangura nzvimbo dzekuisa maburi, kutsetseka uye zvinodiwa zvekubatana kwezvishandiso kuitira kuti ongororo yehukuru ifukidze gungano rakapedzwa.

Maburi ekucheka, maburi ekuisa, uye maburi ekuisa anowanikwa. Maburi ekuisa paaruminiyamu anowanzo kuve ±0.15 mm zvichienzaniswa ne±0.1 mm paFR-4 — akakosha kana maburi acho akabatana nechinhu chekanika chinoshivirirana zvakanyanya mukamuri remwenje.

Sarudzo dzeKupedzisa Pamusoro peAluminium LED PCBs

Matatu ekupedzisa pamusoro anowanikwa nguva dzose paaruminiyamu LED PCBs:

ENIG (Goridhe reNickel risina Electroless) : 3–6 µin goridhe pamusoro pe100–150 µin nickel. Yakatsetseka, inogara kwenguva refu kusvika kumwedzi gumi nemiviri, inokurudzirwa kune maSMD LED neCOB arrays ane pitch yakanaka. Maitiro eENIG anowedzera mazuva matatu kusvika mashanu ekushanda zvichienzaniswa neHASL.

LF-HASL (Kuenzanisa Kwemhepo Inopisa Isina Mutobvu) : Inodhura zvishoma, inoshivirira kubata. Kusaenzana kwepamusoro kwe ±8–15 µm kunoita kuti isakodzere 0402 uye ma LED pads madiki kana fine-pitch driver ICs. Yakanaka kuma through-hole connector pads.

OSP (Organic Solderability Preservative) : Inodhura zvishoma, inotetepa kupfuura dzimwe dzose. Inonzwa kubatwa kweminwe nehunyoro — inoda kudzorwa kubva parisiti kusvika kuSMT. Nguva yekushanda pasherufu inowanzova mwedzi mitanhatu. Yakakodzera kushandiswa kamwe chete chete.

Ruvara rweMask yeSolder: Zvinoreva Kushanda Kunopfuura Runako

Masiki chena inosonerwa paaruminiyamu LED PCBs isarudzo inoshanda, kwete yekushongedza chete. Masiki chena inodzosera chiedza che LED mu optical system, zvichiita kuti chiedza chishande zvakanaka ne3–8% zvichienderana ne cavity geometry. Ndiyo yakajairika paaruminiyamu LED PCBs dzekunze uye mwenje yemukati inokura apo kupenya kunokosha.

Mask yeblack solder inonwisa chiedza chiri kunze uye inoshandiswa mukuisa chiedza chekunze uye mukushandisa ma sensor ekuona apo mwenje wechipiri unoderedza kunaka kwemufananidzo.

Ruvara rwegirini rwakajairika rwunodhura zvishoma uye rwunowanikwa kubva kune vanopa dielectric vakawanda, asi haruna kuwedzera kana kuderedza mashandiro e optical muzvishandiso zve LED zvakajairika.

Zvisingagone Kugadziriswa

Mamwe ma parameter anoita sevari kuchinja asi anodziviswa nefizikisi kana maitiro:

• Kufambiswa kwemafuta emagetsi hakugone kudarika Tc yezvinhu zvekutanga pasina kukunda mukana wayo wekuputsika kwemagetsi. — pane musiyano uripo pakati pekupisa uye simba re dielectric mu polymer-ceramic composite systems.
• Hapana nzira dzinobatanidza mhangura nearuminiyamu dzinoshandiswa kuburikidza ne through-vias. — hwaro hwearuminiyamu huri pasimba remagetsi rakasiyana (chassis ground kana floating) mumagadzirirwo mazhinji e LED; chero chipi zvacho chinobatanidza mhangura nearuminiyamu idambudziko re circuit
• Kudzora kweImpedance hakushande kune maPCB e LED ealuminium ane layer imwe chete — zvese zvisaririra zviri pamusoro pepasi pesimbi yakasimba uye kudzora kwe impedance kwakajairika sekunoshandiswa mukugadzira RF ine frequency yakakwira hakushande nenzira imwecheteyo.

Kuraira Magadzirirwo Akagadzirwa Nemunhu: Zvekuisa MuRFQ Yako

Iyo yakazara yakagadzirwa aluminium LED PCB RFQ inosanganisira:

1. Mafaira eGerber + faira rekuboorera + dhairekitori rebhodhi DXF
2. Giredhi realuminium alloy uye ukobvu
3. Kufambiswa kwemafuta emagetsi uye kudiwa kwemhando (kana kuti "zvakaenzana nezvinodiwa nemugadziri")
4. Kurema kwemhangura (oz)
5. Surface kupera
6. Solder mask ruvara
7. Kudiwa kwemagetsi eHi-pot
8. Kirasi yeIPC (Kirasi 2 yakajairwa, Kirasi 3 kana zvichidikanwa)
9. Zvitupa zvinodiwa (UL 94V-0, REACH, RoHS)

Tumira izvi kuHighleap Electronics uchishandisa fomu re LED PCB kuti uwane mhinduro mukati memaawa makumi maviri nemana zvichienderana nezvinodiwa.

FAQ

Ndeipi huwandu hushoma hweodha yearuminiyamu yakagadzirwa ne LED PCB? Kuti uwane zvirevo zvakakwana (non-standard dielectric Tc, non-standard aruminiyamu gauge), huwandu hushoma hweodha hunowanzo kutanga pamapaneru 50–100 zvichienderana nezvinodiwa zvekutenga zvinhu zve dielectric. Zvirevo zvakajairwa (1.0 W/m·K, 1.6 mm aruminiyamu, 1 oz copper) zvinowanikwa kubva muhuwandu hweprototype hwemapaneru mashanu.

Ndingataura here saizi yebhodhi yakagadzirwa yakakura kupfuura mapaneru akajairwa? Ehe, mukati mehukuru hwepaneru hwefekitori. Highleap Electronics inotsigira aruminiyamu LED PCBs inosvika 600 × 800 mm. Mapaneru akakura kwazvo (>500 × 500 mm) anogona kuda kusimbiswa kwechimiro mukugadzirwa kwezvishandiso kuti atsive kuomarara kwebase aluminium pamipendero.

Masiki chena chesolder chinokanganisa sei mashandiro ekupisa? Masiki chena chesolder chine simba rekudzivirira kupisa rakanyanya kupfuura regirini nekuda kwekuwedzera titanium dioxide filler. Musiyano uyu haunyanyi kukosha kana tichitarisa kupisa (<<0.1°C/W). Kubatsira kwechiedza (3–8% yakakwira) kunodarika mhedzisiro yekupisa mumagadzirirwo emakomba echiedza.

MaPCB e LED e aruminiyamu anogona kugadziriswa here? Kwete. Aruminiyamu haisi substrate inochinjika. Kune mashandisirwo e LED anochinjika — anopfekwa, curved display backlighting — chigadzirwa chakakodzera i LED PCB inochinjika iri pa polyimide substrate, ine zvinodiwa zvakasiyana zvekutarisira kupisa.