ENIG vs Hard Gold paPCBs: Ndeipi Finish Inofanira Kuitwa?
Mufananidzo 1. Kuenzanisa kwePCB yeENIG negoridhe rakaoma pamusoro penzvimbo dzinogoneka kusundirwa uye dzinopfekwa.
Musiyano uripo pakati peENIG negoridhe rakaoma unobva pakukora, kuomarara, maitiro, uye chinangwa. Goridhe rekunyudza (ENIG) igoridhe rakatetepa pamusoro penickel isina electro, mugumo wakatsetseka, unogoneka kusunganidzwa wakanakira mabhodhi ane pitch yakanaka. Goridhe rakapfava kana kuti "rakaoma" igoridhe rakakora, rakaoma rakavakwa ne electrolysis, rakagadzirirwa nzvimbo dzakasakara dzakadai seminwe yekubatanidza mativi uye ma contacts. Haasi mavhezheni anokwikwidzana echinhu chimwe chete; anogadzirisa matambudziko akasiyana, uye mabhodhi mazhinji anoshandisa ese ari maviri. Gwaro iri rinotsanangura magumo ega ega, magadzirirwo awo, uye nguva yekusarudza kuti ndeapi.
Key tora kutora
- Goridhe rekunyudza (ENIG) igoridhe rakatetepa pamusoro penickel isina electro, mugumo wakatwasuka, unogoneka kusundirwa pamabhodhi e-fine-pitch neBGA.
- Kuputira goridhe (goridhe rakaoma/rakagadzirwa nemagetsi) igoridhe rakakora uye rakaoma pakupfekwa, rinoshandiswa paminwe yemupendero uye pakubata.
- ENIG inzira isina magetsi (makemikari); goridhe rakaoma rinoshandisa magetsi uye rinoda nzira yekubatanidza magetsi.
- Shandisa ENIG sechinopedzwa chinogoneka kuputirwa pabhodhi rese; shandisa goridhe rakasimba kana zvikamu zvacho zvichikwanisa kusvetukira kana kutsvedza.
- Mabhodhi mazhinji anosanganisa ENIG pamusoro negoridhe rakaoma paminwe inopinza madziro.
Zviri Mukati
- Kunyudza Goridhe vs Kuisa Goridhe: Misiyano Yakakosha
- Chii chinonzi Kunyudzwa Goridhe (ENIG)?
- Chii Chinonzi Goridhe Rinoputirwa (Goridhe Rakaoma)?
- Maitiro eGoridhe asina Electrolytic vs Electrolytic
- ENIG vs Hard Gold: Kuenzanisa Padivi Nepadivi
- Nguva Yokushandisa ENIG vs Hard Gold
- ENIG neHard Gold vs Zvimwe Zvigadziko zvePCB
- Kushandisa ENIG neHard Gold paBhodhi Rimwechete
- Mibvunzo Inonyanya Kubvunzwa
Kunyudza Goridhe vs Kuisa Goridhe: Misiyano Yakakosha
Zvese zviri zviviri zvinoisa goridhe pamusoro pe nickel layer pamhangura, asi nezvikonzero zvakasiyana.
- Goridhe rekunyudzwa (ENIG) inoshandisa dhayamita regoridhe rakatetepa zvikuru kuchengetedza nickel uye kuita kuti igare ichikwanisa kusungirirwa. Goridhe iri rinopa chibayiro; solder inobatana nenickel.
- Kuputira goridhe (goridhe rakaoma) inovaka dhayagiramu regoridhe rakakora uye rakasimba rinogara richisangana kakawanda uye richitsvedza. Pano goridhe pacharo ndiro rinoshanda.
Saka mubvunzo wekuti "ndeipi iri nani" hauna mhinduro yakajairika; zvinoenderana nebasa racho. Bhodhi rine mapedhi akawanda anotengeswa rinoda ENIG, nepo chinobatanidza chemakadhi chinoda goridhe rakaoma. Zvese zviri zviviri sarudzo dzepamusoro-soro dzinoitwa panguva yekugadzira PCB.
Chii chinonzi Kunyudzwa Goridhe (ENIG)?
ENIG inomiririra Electroless Nickel Immersion Gold. Igoridhe rine mativi maviri rakavakirwa pamhangura.
Maumbirwo echikamu
Rutivi rwe nickel isina magetsi runoiswa pamusoro pemhangura sechidziviriro uye pamusoro chaipo panogona kusanganiswa, wobva waisa rutivi rutete rwegoridhe pamusoro payo. Goridhe rakatetepa nekuti basa raro nderekudzivirira nickel kubva mukuoxidation uye kupa hupenyu hurefu hwekuchengetedza uye kugona kusanganiswa zvakanaka; panguva yekusunganidzwa goridhe rinonyunguduka uye solder rinobatana ne nickel.
Nei ENIG yakakurumbira
- Nzvimbo yakati sandara, ine mativi maviri, yakanakira zvikamu zvakanaka, maBGA, uye press-fit.
- Kugona kusungirira zvakanaka uye kugara kwenguva refu musherufu, ine magumo asina lead, anoenderana neRoHS.
- Yakakodzera mapuranga akakora, rudzi rwakajairika mu magadzirirwo ekumhanya kwepamusoro uye HDI.
Njodzi huru yaunofanira kuziva ndeye "black pad", dambudziko re corrosion-nickel rinogona kuitika kana kemikari ikasadzorwa zvakanaka, zvichiita kuti majoini asashande zvakanaka. Maitiro akarongwa anodzivisa. Kana paine tambo yegoridhe inodiwa, finish yakafanana (ENEPIG, iyo inowedzera palladium layer) inowanzo shandiswa, nekuti goridhe rakatetepa reENIG harina kukodzera izvozvo.
Chii Chinonzi Goridhe Rinoputirwa (Goridhe Rakaoma)?
Kuputira goridhe, mupfungwa iyo vanhu vanoireva kana vachienzanisa neENIG, igoridhe rakaoma rakaputirwa nemagetsi, jira regoridhe rakakora uye rinogara kwenguva refu.
Maumbirwo echikamu
Nickel yemagetsi inoputirwa pamusoro pemhangura, wobva waisa jira regoridhe pamusoro payo. Pakushandisa pakupfekwa, goridhe racho "goridhe rakaoma", rakasanganiswa ne cobalt kana nickel shoma kuti rive rakaoma uye risingapfeki, uye rakakora kupfuura goridhe reENIG.
Kwakashandiswa goridhe rakaoma
- Zvigunwe zvinobatanidza mucheto ("zvigunwe zvegoridhe") iyo inobatanidzirwa musoketi kakawanda.
- Vanhu vaunosangana navo uye maswichi vanosangana nekutsvedza kana kusveta-sveta kakawanda.
- Pfeka pamusoro kazhinji, uko goridhe rinofanira kugara kwenguva refu.
Nekuti gobvu uye rinoshandiswa pakakwirira, goridhe rakaoma rinodhura uye rinowanzo shandiswa nenzira yakasarudzwa, panzvimbo penzvimbo dzinosangana, kwete pabhodhi rose. Goridhe rakapfava uye rakachena rinoshandiswa pakubatanidza waya uye mamwe matinji apo kuomarara hakusiko chinangwa.
Maitiro eGoridhe asina Electrolytic vs Electrolytic
Musiyano mukuru unoshanda ndewekuti dhayamita yega yega yegoridhe inoiswa sei, izvo zvinokanganisa kuti ndeapi magadzirirwo anogona kuputirwa.
- ENIG haina magetsi. Kuisa makemikari uku kunozvikonzera pasina magetsi ekunze, saka kunoisa simbi dzacho zvakaenzana, kusanganisira pazvinhu zvakaparadzana, pasina kuda kubatana nemagetsi.
- Ndarama yakaoma ine electrolytic. Inoshandisa magetsi emagetsi, saka zvinhu zvakaputirwa zvinofanira kunge zvakabatana nemagetsi, zvichishandiswa nebhazi repurasitiki kana kuti tambo, izvo zvinogona kubviswa mushure mezvo.
Ndosaka ENIG iri nyore kushandisa sebhodhi rakafara, inofukidza zvese zvakaenzana, nepo kuda kwegoridhe rakaoma nzira yemagetsi kuri chikamu chechikonzero nei ichiwanzochengeterwa nzvimbo dzakati semipendero yeminwe. Maitiro acho, kwete goridhe chete, anoumba apo kupedzisa kwega kwega kune musoro.
ENIG vs Hard Gold: Kuenzanisa Padivi Nepadivi
Mapedzisiro maviri aya anoenderana zvakanaka pazvinhu zvakakosha.
| Paunhu | Goridhe rekunyudzwa (ENIG) | Ndarama yakaoma (yakafukidzwa) |
|---|---|---|
| Ukobvu hwegoridhe | Mutete zvikuru | Gobvu rakawanda |
| neukukutu | Nyoro, inodzivirira | Zvakaoma, kusapfeka |
| urongwa | Isina magetsi (isina magetsi) | Electrolytic (inoda nzira yekuputira) |
| Chinangwa chikuru | Nzvimbo inogadziriswa, yakati sandara | Nzvimbo inogara kwenguva refu yekubata |
| Chaizvoizvo kushandiswa | Kupedzisa kwebhodhi rese, bhora rakanaka, BGA | Zvigunwe zvemucheto, vanhu vanobatana, maswichi |
| Mari yakaenzana | eresera | Yakakwirira, kunyanya kana yakakora |
Maitiro acho akafanana: ENIG inogadzirisa nzvimbo yakati sandara, inogoneka kusungirirwa pamusoro pebhodhi, nepo goridhe rakaoma richigadzirisa kugara kwenguva refu pazviso zvemaoko. Dzinogovana nickel underlayer asi dzakasiyana muzvinhu zvese zviri pamusoro payo.
Mufananidzo 2. Muenzaniso wekupedzisira kwePCB yeENIG negoridhe rakaoma wekusarudza kupedzisa pamusoro.
Nguva Yokushandisa ENIG vs Hard Gold
Kusarudza kuri nyore kana chikumbiro chave pachena.
| Kana uchida… | Sarudza |
|---|---|
| Kupedzisa kunogoneka kwepitch yakanaka kana BGA | Goridhe rekunyudzwa (ENIG) |
| Nzvimbo yakati sandara, yakakombama yekuunganidzira | Goridhe rekunyudzwa (ENIG) |
| Zvigunwe zvinobatanidza mucheto zvakasimba | Ndarama yakaoma |
| Kusangana nevanhu vakawanda vanobatana | Ndarama yakaoma |
Kune akawanda mabhodhi, ane pamusoro pawo ari mapedhi akasungirirwa, ENIG ndiyo finish chaiyo, uye inoenderana zvakanaka nekubatanidzwa kwayo nekuda kwekuti yakapfava. Ndarama yakaoma inopinda mumufananidzo chete kana chimwe chinhu chichifanira kuramba chakasakara. finish inofanira kutevedzera mashandiro enzvimbo yega yega, inova ndiyo chaiyo mhando yeruzivo rwakasimbiswa muongororo yekugadzira.
ENIG neHard Gold vs Zvimwe Zvigadziko zvePCB
ENIG negoridhe rakaoma ndezvimwe zvezvinhu zvakasiyana-siyana, uye zvinobatsira kuona kuti zviri pakati pezvimwe zvinhu.
| pedza | mhando | Best for |
|---|---|---|
| HASL | Jasi resimbi risina mutobvu kana mutobvu | Mabhodhi emhando yepamusoro akakura uye asingadhuri |
| OSP | Kuputira kweorganic pamhangura | Inodhura zvishoma, yakati sandara, uye inogara kwenguva pfupi pasherufu |
| Kunyudza sirivheri | Sirivha yakatetepa | Yakatsetseka, inogoneka kusundirwa, ine RF yakasununguka |
| Kunyudza tin | Tini yakatetepa | Yakatsetseka, yakapfava, uye inogara kwenguva pfupi pasherufu |
| ENIG | Nickel isina electro, goridhe rekunyudza | Pitch yakanaka, BGA, inogona kusungirirwa yakati sandara |
| Ndarama yakaoma | Nickel yemagetsi, goridhe rakaoma | Minwe yemucheto, kubatana, kupfeka |
HASL ndiyo nzira inodhura zvishoma yekushandisa mabhodhi asinganyanyi kuoma asi haina kutsetseka zvakakwana kuti iite bhora rakanaka; OSP, sirivha yekunyudza, uye tin yekunyudza imhando dzakasiyana-siyana, dzine mutengo wakaderera, dzine hupenyu hwadzo hwekushanda uye dzinoshanda. ENIG ndiyo nzira inoshandiswa pakugadzira bhora rakatsetseka uye rinogona kunyudzwa kana richishandiswa zvakanaka, uye goridhe rakaoma rinoonekwa serinopedzwa pakuchekwa kwesimbi. Kusarudza pakati padzo kunofanirwa kuenderana nezvinodiwa nebhodhi pakugadzira bhodhi uye pabasa rayo, zvakasimbiswa panguva yekuronga kubatanidza bhodhi uye zvinogadzirwa mukugadzira.
Kushandisa ENIG neHard Gold paBhodhi Rimwechete
Chinokosha ndechekuti zviviri izvi hazvina kusiyana, uye bhodhi rimwe chete rinowanzoshandisa zvese zviri zviviri.
Chinhu chinowanzo shandiswa iENIG munzvimbo dzese dzakasungirirwa, negoridhe rakasimba rakaiswa zvakanaka paminwe yekubatanidza pamucheto inoda kuramba kupfekwa. Izvi zvinopa zvakanakisa pane zvese: nzvimbo yakati sandara, inogonyerwa panowanikwa zvikamu, uye nzvimbo inogara kwenguva refu yekubata bhodhi.
Zvichinyatsojeka, ENIG sechigadziko chekupedzisira pamwe negoridhe rakasarudzwa paminwe yemupendero yakanyorwa, zvinoita kuti mugadziri aronge maitiro acho nemazvo. Musanganiswa wenguva dzose mukugadzirwa, uye kuisa padhirowa kunodzivirira kuvhiringidzika gare gare. Sezvo magadzirirwo achikura, chimiro chimwe chete chekupedzisira chinopinda muchikamu chekuunganidza chakawanda , uye mapuranga ane zvinhu zvinorema zvekupisa, senge simbi-core assemblies , achiri kutevedzera magumo akafanana.
Goridhe rekunyudza (ENIG) negoridhe rakaoma zvinogadzirisa matambudziko akasiyana: ENIG ipurasitiki yakatetepa, yakati sandara, inogoneka kusungirirwa pabhodhi, nepo goridhe rakaoma riri jira gobvu, rinogara kwenguva refu rekubata neminwe yemupendero. Enzanisa chigadziko nebasa renzvimbo yega yega, zvibatanidze pazvinobatsira, uye nyora zvakajeka padhirowa yako. Unogona kuverenga zvakawanda nezveHighleap Electronics uye masevhisi edu ekugadzira nekubatanidza.
Mibvunzo Inonyanya Kubvunzwa
Chii chiri musiyano pakati pekunyudzwa kwegoridhe nekuputirwa kwegoridhe?
Goridhe rekunyudza (ENIG) igoridhe rakatetepa pamusoro penickel isina electro, mugumo wakatwasuka, unogoneka kusanganiswa une goridhe rinonyanya kudzivirira nickel. Goridhe rakaputirwa (goridhe rakaoma) igoridhe rakakora, rakaoma rakavakwa neelectrolysis kuti rirambe kupfeka pazvinenge zvakabatana. Dzinosiyana pakukora, kuomarara, maitiro, uye chinangwa, uye hadzichinjiki.
Ko solder inobatanidzwa negoridhe muENIG here?
Kwete. MuENIG goridhe rakatetepa rinonyungudika musolder panguva yekudzoreredza, uye joint yacho inoumbwa kusvika ku nickel iri pasi. Basa regoridhe nderekudzivirira nickel kubva mukuoxidation uye kupa nguva yekugara uye kugona kusungirira. Ndokusaka goridhe reENIG richigona kutetepa, rinopa zvibayiro pane kuva restructuring.
Sei ENIG ichinyanya kufarirwa pamabhodhi e "fine-pitch" neBGA?
Nekuti inogadzira nzvimbo yakati sandara, ine coplanar, iyo inokosha pakuisa zvikamu zve fine-pitch uye BGAs zvakavimbika. Inosunganidzwa zvakanaka uye inogara kwenguva refu. Nzira yayo isina magetsi inofukidza zvese zvakaenzana pasina kuda kubatana kwemagetsi, zvichiita kuti ive nyore kupedzisa bhodhi rese.
Chii chinonzi "black pad" uye ndinofanira kunetseka nazvo here?
Black pad idambudziko rine nickel-corrosion rinogona kuitika mu ENIG process kana chemistry isina kudzorwa zvakanaka, zvichikonzera kuti ma solder joints asave nyore uye asingavimbike. Idambudziko re process-control, saka mugadziri ane ENIG line inodzorwa anodzivisa. Zvakakosha kuziva asi kwete chikonzero chekudzivisa ENIG.
Ndirini pandinofanira kuda goridhe rakaoma panzvimbo peENIG?
Kana pamusoro pacho pachifanira kupfekwa, zvakaita seminwe inopinza mupendero inobatika kakawanda, kana kuti inobatana uye inochinjana kakawanda. Ndarama yakaoma yakakora uye inosanganiswa kuti igare kwenguva refu. Ndarama yakatetepa yeENIG yaizopfekwa nekukurumidza mumabasa iwayo, saka ndarama yakaoma inoiswa panzvimbo dzayo dzakasarudzika.
PCB imwe chete inogona kushandisa ENIG negoridhe rakaoma here?
Ehe, uye zvakajairika. Bhodhi rinowanzo shandisa ENIG munzvimbo dzaro dzakasungirirwa uye goridhe rakasimba paminwe yekubatanidza inovhara madziro inoda kuramba kupfekwa. Taura ENIG sechigadziko pamwe negoridhe rakasimba paminwe yakanyorwa mazita kuitira kuti mugadziri agone kuronga maitiro acho nemazvo.
Sei goridhe rakaoma richidhura zvakanyanya?
Inoshandisa goridhe rakakora zvikuru uye nzira yemagetsi inoda nzira yekubatanidza magetsi, uye inoshandiswa panokosha pakugara kwenguva refu. Goridhe rakawedzerwa uye matanho ekugadzirisa anowedzera mutengo, ndosaka goridhe rakaoma richiwanzoiswa panzvimbo dzinosangana panzvimbo pebhodhi rese.
ENIG inoenzaniswa sei neHASL?
HASL (chifukidziro chesimbi chisina mutobvu kana mutobvu) chakachipa asi chinosiya nzvimbo isina kuenzana, izvo zvinonetsa zvikamu zvesimbi zvakapfava uye maBGA. ENIG inopa kupedzisa kwakapfava, kwakakodzera kune avo, nemutengo wakakwira. Kune mabhodhi akareruka, makuru, HASL inowanzo shanda; kune magadzirirwo akapfava, ENIG inowanzo shanda zvakanaka.
Ko ENIG kana goridhe rakaoma zviri nani here pamabhodhi eRF ane frequency yakakwira?
Kune mabhodhi eRF akasungirirwa, finish yakatsetseka senge ENIG (kana sirivha inonyudzwa) inowanzo shandiswa, sezvo kutsetseka uye kugona kusungirirwa kunonyanya kukosha. Goridhe rakaoma rinonyanya kukosha pakupfeka kwekubatana, kwete kushanda kweRF, saka rinoshandiswa chete kana bhodhi rine nzvimbo dzakasakara seminwe yemucheto. Dhizaini yelaminate netrace inokosha zvikuru kuRF kupfuura kusarudza pakati pemafinish aya.
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Nzira yekuwana sei quote yePCBs
Ngatimhanyei DFM/DFA ongororo yenyu todzokera kwamuri nereport. Unogona kurodha mafaera ako zvakachengeteka kuburikidza newebhusaiti yedu. Isu tinoda ruzivo rwunotevera kuti tikupe iwe quote:
-
- Gerber, ODB++, kana .pcb, spec.
- BOM rondedzero kana iwe uchida kusangana
- uwandu
- Kuchinja nguva
Kune masevhisi ePCBA, ndapota ipa BOM yako (Bhiri reZvinhu) uye chero mirairo yegungano. Isu tinopawo DFM/DFA ongororo yekukwidziridza zvigadziriso zvako zvekugadzira uye kusangana, kuve nechokwadi chekuita kwakatsetseka kwekugadzira.