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Ukuhlola I-PCB Surface Treatment: Ukubaluleka kwe-ENIG ne-DIG

I-PCB Surface Treatment: ENIG PCB

Njengoba ukwakheka kwe-elekthronikhi kushintsha njalo, ukuthembeka nokusebenza kwama-PCB kuncike kakhulu ekuqedweni kwawo kobuso . Phakathi kohlu lwe-PCB Surface Treatment olutholakalayo, i-Immersion Gold ivelele ngezici zayo eziqinile nezinzuzo, ikakhulukazi ekusetshenzisweni okunokwethenjelwa kakhulu. Lokhu kuhlaziywa okuphelele kuzogxila enkambisweni ye- Electroless Nickel Immersion Gold (ENIG) , kuhlolwe ukuthi kungani iba yinto ekhethwa kakhulu abakhiqizi be-PCB emhlabeni jikelele.

Ukuqonda i-Electroless Nickel Immersion Gold (ENIG)

Inqubo ye-ENIG ibone intuthuko ebalulekile efana nokukhula kwemboni ye-elekthronikhi. Idume ngokumbozwa kwayo kwensimbi okunezingqimba ezimbili—i-nickel kanye nongqimba oluncane lwegolide—i-ENIG inikeza enye indlela engenalo i-lead , enobungani nemvelo esikhundleni sokuqedwa kwendabuko. Le nqubo ihilela ukufaka ama-micron amabili kuya kwayisishiyagalombili egolide phezu kwengqimba ye-nickel engama-micron angu-120 kuya kwangu-240, esebenza njengesithiyo ekusakazweni kwethusi futhi inikeze indawo eqinile yokunamathisela.

Izakhiwo ezihlukile ze-ENIG:

Ukumelana okuhle kwe-Oxidation: Isendlalelo segolide ku-ENIG sivikela i-nickel ngaphansi ekufakweni kwe-oxidizing, iqinisekisa ukuthi i-PCB ivikelekile ekugqwaleni futhi igcina ubuqotho bayo ngokuhamba kwesikhathi.
Ukubekezelela izinga lokushisa eliphezulu: Ama-PCB ahlanganiswe ne-ENIG angakwazi ukumelana namazinga okushisa aphezulu okusebenza, awenze alungele izinhlelo zokusebenza ezidinga ukuqina ngaphansi kwengcindezi eshisayo.
Ukusebenza Kagesi Okuthuthukisiwe: Ubushelelezi, indawo eyisicaba ye-nickel kanye nezakhiwo zegolide eziqhubayo zifaka isandla ekusebenzeni kukagesi okuphakeme, okubalulekile ekugcineni ubuqotho bokudluliswa kwesignali kumadizayini wesekethe eyinkimbinkimbi.
Ukuphila Isikhathi Eside Nokuqina: Ukuqedwa kwe-ENIG kuphawuleka ngempilo yabo yeshalofu ende nokuqina, izici ezibenza bathandwe embonini naphezu kwezindleko zabo eziphakeme uma kuqhathaniswa nezinye iziphetho ezifana I-OSP (i-Organic Solderability Preservatives) or I-HASL (Hot Air Solder Leveling).

I-PCB Surface Treatment: ENIG PCB

I-Direct Immersion Gold (DIG), intuthuko entsha nesanda kwenzeka kubuchwepheshe bokuqeda phezulu, idonsele ukunakwa ngezakhiwo zayo ezihlukile kanye nezinzuzo zayo, ikakhulukazi kuma-elekthronikhi anembayo. Lokhu kuhlola okuningiliziwe kunikeza ukubheka okujulile kwe-DIG, kugcizelela inqubo yayo yokufaka isicelo, izinzuzo, nokufaneleka kwezinto zikagesi zesimanje.

Yini i-Direct Immersion Gold (DIG)?

I-Direct Immersion Gold (DIG) iyindlela yokuqedela ngaphezulu ebandakanya ukubeka ngokuqondile ungqimba oluncane lwegolide endaweni yethusi ye-PCB ngaphandle kokusebenzisa ungqimba lwe-nickel oluphakathi, oluvamile ezinqubweni zendabuko ze-Electroless Nickel Immersion Gold (ENIG). Inqubo ye-DIG inikeza enye indlela engena-nickel, ehlinzeka ngesakhiwo esiqinile se-lattice esikhawulela ngokuphawulekayo ukusakazeka kwethusi phezulu, okubalulekile ekugcineni ubuqotho be-PCB ezinhlelweni ezihlukahlukene.

Kuchazwe Inqubo ye-DIG

Inqubo ye-DIG ibonakala ngobulula nokusebenza kahle kwayo, okungahlukaniswa kube izinyathelo ezibalulekile ezimbalwa:

Ukulungiselela Okungaphezulu: Ngaphambi kokuthi kwenzeke noma yikuphi ukufakwa kwegolide, izindawo ezingaphezulu zethusi ze-PCB kufanele zihlanzwe ngokucophelela ukuze kukhishwe noma yikuphi ukungcola, uwoyela, noma imikhiqizo ye-oxidation. Lokhu kuvame ukubandakanya inhlanganisela yama-ejenti okuhlanza amakhemikhali kanye namasu okucwilisa kancane ukuze kuqinisekiswe indawo ehlanzekile, ebaluleke kakhulu ekunamatheleni okufanele nokufana kongqimba lwegolide.

Ukwenza kusebenze: Lesi sinyathelo sibandakanya ukwelapha izindawo zethusi ezilungisiwe ngesisebenzesi samakhemikhali esilungisa ithusi ukuze libekwe igolide. Lesi sicuphi siqinisekisa ukuthi igolide lizohlangana ngempumelelo phakathi nenqubo yokucwiliswa.
Ukucwiliswa Kwegolide: Izindawo zethusi ezicushiwe zibe sezicwiliswa kwisixazululo esiqukethe usawoti wegolide. Ngokusabela kokugudluka, ama-athomu egolide abeka ngokuqondile endaweni yethusi, enze ungqimba oluncane lwegolide olufana nolunye. Le nqubo yokucwilisa ilawulwa ngokucophelela ukuze kuzuzwe ukujiya okufunayo kanye nekhwalithi yokucwecwa kwegolide.
Ukuhlanza Ngemva Kokwelashwa: Ngemuva kokucwecwa kwegolide, ama-PCB ayahashazwa futhi ahlanzwe ukuze kukhishwe noma imaphi amakhemikhali ayinsalela noma imikhiqizo evela phezulu. Lesi sinyathelo sibalulekile ukuvimbela noma yiziphi izinkinga ezingaba khona emkhiqizweni wokugcina.

Izinzuzo Eziyinhloko Zegolide Lokucwiliswa Okuqondile (DIG)

I-DIG inikezela ngezinzuzo ezimbalwa ezibalulekile ezikwenza kube ukukhetha okuncamelayo ezinhlelweni eziningi ze-PCB zobuchwepheshe obuphezulu:

Ukwakhiwa Okungenayo I-Nickel: Ngokuqeda ungqimba lwe-nickel olusetshenziswa ku-ENIG, i-DIG inciphisa ingozi yeziphambeko ezihlobene ne-nickel njenge-black pad syndrome, engase ibeke engozini ubuqotho obuhlangene be-solder.
Ukusebenza Kagesi Okuthuthukisiwe: Igolide liyathandeka kakhulu, futhi ukuthintana kwalo ngqo nethusi kuthuthukisa ukusebenza kukagesi kwe-PCB, okuzuzisa kakhulu kuma-high-frequency noma izinhlelo zokusebenza ezinembayo.
Ukumelana Ne-Corrosion Okuhle Kakhulu: Igolide limelana kakhulu ne-oxidation kanye nokugqwala, livikela ithusi elingaphansi ezicini zemvelo ezingonakalisa i-PCB ngokuhamba kwesikhathi.
Ukuhambisana Kwe-pitch: Ikhono lokudala ungqimba lwegolide oluminyene, olufanayo lenza i-DIG ifaneleke ezinhlelweni zokusebenza zephimbo, lapho isikhala phakathi kwezingxenye sisincane futhi ukwethembeka kubaluleke kakhulu.
Inkimbinkimbi Yenqubo Eyehlisiwe: I-DIG yenza inqubo yokuqeda i-PCB ibe lula ngokususa izinyathelo ezihlobene ne-nickel plating, okungenzeka kunciphise izikhathi zokukhiqiza nezindleko.

Izicelo Ezikahle ze-DIG

I-DIG ifaneleka kakhulu izinhlelo zokusebenza lapho ukuthembeka okuphezulu, ukusebenza kahle kukagesi, kanye nezidingo zephimbo eliqinile zibalulekile. Lokhu kubandakanya:

Amadivayisi Okuxhumana Okuvama Kakhulu: Amadivayisi asebenza kumafrikhwensi aphezulu azuza ezinhlelweni zikagesi zegolide.
Ama-PCB aguqukayo: I-ductility yegolide ikwenza kube ukukhetha okuhle kakhulu kwama-PCB aguquguqukayo, okumele abekezelele ukugoba nokugobeka ngaphandle kokuphuka.
Amabhodi we-High-Density Interconnect (HDI): HDI amabhodi, efaka imigqa emihle nezikhala, idinga ukunemba nokuthembeka okungahlinzekwa yi-DIG.

Izinselelo Nokucatshangelwa

Nakuba i-DIG inikeza izinzuzo eziningi, kubalulekile ukucabangela ukulinganiselwa nezinselele zayo:

Izindleko: Ngaphandle kokwenziwa lula kwenqubo, izindleko eziphezulu zegolide zihlala ziyisici esibalulekile, okungenzeka sikhawulele ukusetshenziswa kwe-DIG ezinhlelweni zokusebenza zenani eliphezulu.
Ukulawula Ukuqina Kwegolide: Ukulawula okunembile phezu kogqinsi longqimba lwegolide kubalulekile, njengoba ukuhlukahluka kungathinta ukudayiswa nokuthembeka kwe-PCB.
Ukumelana Okukhawulelwe Kwe-Wear: Nakuba zinhle kakhulu ekumelaneni nokugqwala, izendlalelo zegolide ezizacile zingase zinganikezi ukumelana nokuguga okwanele endaweni yokuxhumana noma izinhlelo zokusebenza zokuxhuma.

I-PCB Surface Treatment: DIG PCB

Cela i-PCB Assembly Quote Manje

Ukukhetha Phakathi kwe-ENIG ne-DIG

Ukukhetha phakathi kwe-ENIG ne-DIG kuncike kakhulu ezidingweni ezithile zohlelo lokusebenza lwe-PCB:

Ngokusetshenziswa Okujwayelekile: I-ENIG ivame ukuthandwa ngenxa yokuthembeka kwayo okuqinisekisiwe nokusebenza okuhle kakhulu kuzo zonke izinhlobo zezinhlelo zokusebenza.
Ngokunemba Okuphezulu noma Imvamisa ephezulu: I-DIG ingase ifaneleke kakhulu, ikakhulukazi lapho kudingeka khona ubuqotho besignali obuphakeme kakhulu, futhi izindleko zingathethelelwa.
Ukucatshangelwa kwemvelo: Kokubili ukuqedwa akunawo umthofu, kodwa ukungabi khona kwe-nickel ku-DIG kungabonakala njengenzuzo eyengeziwe yemvelo.
Ukuzwela Izindleko: Kumaphrojekthi azwela kakhulu izindleko, ukukhetha kungase kuncike ekulinganiseni izinzuzo zesiphetho ngasinye ngokumelene nezindleko zazo.

Ngamafuphi, i-ENIG kanye ne-DIG zinikeza izinzuzo ezibalulekile zokuqedela ubuso be-PCB , i-ENIG inikeza ikhambi elamukeleka kakhulu emhlabeni wonke kanye ne-DIG inikeza izinzuzo ezikhethekile zezinhlelo zokusebenza ezithile zobuchwepheshe obuphezulu. Isinqumo kufanele siqondiswe yizidingo ezithile ze-PCB, okuhlanganisa nokucatshangelwa kokuqina, izindleko, ukusetshenziswa, kanye nezici zemvelo.

Isiphetho

Ama-PCB abalulekile kuma-elekthronikhi wesimanje, adinga ukuqedwa okuqinile kwendawo ukuze kusebenze kahle. I-Electroless Nickel Immersion Gold (ENIG) kanye ne-Direct Immersion Gold (DIG) zihamba phambili ngezinketho ngezinzuzo zazo ezihlukile. I-ENIG ihlanganisa i-nickel negolide ukuvimbela i-oxidation futhi isekele amazinga okushisa aphezulu, ithuthukisa ukuqina kwe-PCB nokusebenza kukagesi. I-DIG, igwema i-nickel, inikeza ubulula nokusebenza kahle, ngokuhambisa kahle kukagesi kanye nokumelana nokugqwala, ilungele izinto zikagesi ezinembayo. Kokubili okuqedayo kubhekelela izidingo ezithile zohlelo lokusebenza, izindleko zokulinganisa, ukusebenza, nokucatshangelwa kwemvelo.

Uma ucabangela kuphela izindleko zokwenza i-PCB yakho, usadinga ukuqonda izimo zemakethe yendawo. Ezinye izindleko zivame ukuba yithiyori. Intengo yangempela ye-PCB isadinga ukucabangela isimo sangempela. Kungcono ukuthintana ngqo nenkampani enethimba lonjiniyela abaqeqeshiwe.

Cela i-PCB Assembly Quote Manje

Imibuzo Evame Ukubuzwa

1.Iziphi izinzuzo ezibalulekile zemvelo zokusebenzisa i-ENIG kanye ne-DIG surface finishes?

Kokubili i-ENIG kanye ne-DIG azinawo umthofu, okuwenza abe nobungane bemvelo kunokuqedwa okujwayelekile okusekelwe kumthofu. Ukwengeza, i-DIG iqeda ukusetshenziswa kwe-nickel, inciphisa izingozi ezingenzeka zemvelo kanye nempilo ezihlobene ne-nickel.

2.Ingabe ukuqedwa kwe-ENIG kanye ne-DIG kuthinta kanjani inqubo yokuhlanganisa yama-PCB?

I-ENIG inikeza indawo eyisicaba futhi ezinzile ethuthukisa inqubo yokuhlanganisa, ikakhulukazi izingxenye eziyinkimbinkimbi. I-DIG yenza inqubo yokuqeda ibe lula ngokususa izinyathelo ze-nickel plating, ezinganciphisa izikhathi zokukhiqiza nezindleko.

3.Ingabe ukuqedwa kwe-ENIG kanye ne-DIG kungasetshenziswa kuzo zonke izinhlobo zama-PCB?

I-ENIG iguquguquka futhi ilungele uhla olubanzi lwezinhlelo zokusebenza ze-PCB. I-DIG, ngenxa yokuhambisana kwayo kahle kwephimbo kanye nokusebenza okuphezulu, ifaneleka ngokukhethekile izinhlelo zokusebenza ze-PCB eziminingi kanye nemvamisa ephezulu.

4.Yini okufanele abakhiqizi bayicabangele lapho bekhetha phakathi kwe-ENIG ne-DIG kuma-PCB abo?

Ukucatshangelwa kufaka phakathi izidingo ezithile zohlelo lokusebenza njengezimfuno ezishisayo nezikagesi, izindleko, kanye nomthelela wemvelo wokuqeda. I-ENIG ngokuvamile ikhethwa ezinhlelweni ezibanzi, kuyilapho i-DIG ingase ibe ngcono kuzinhlelo zokusebenza ezincike ngokunemba.

5.Ingabe i-ENIG ne-DIG ziqhathaniseka kanjani ngokusebenza kahle kwezindleko?

Nakuba kokubili ukwelashwa okungaphezulu kunikeza izinzuzo ezibalulekile, inqubo ye-ENIG enezingqimba ezimbili ivame ukubiza kakhulu ngoba ihlanganisa i-nickel negolide. Ngenxa yezinyathelo ezimbalwa zokucubungula nokusetshenziswa kwezinto ezibonakalayo, i-DIG ingonga izindleko, ikakhulukazi ezinhlelweni zokusebenza ezinkulu lapho ukunemba okuphezulu kungabalulekile kangako. Ngokwethiyori, izindleko ze-DIG ziphansi, kodwa bambalwa abantu emakethe yaseShayina abasebenzisa ubuchwepheshe be-DIG surface. Ulayini wokukhiqiza we-PCB udinga isilinda esihlukile segolide esingenayo i-nickel, futhi bambalwa abasebenzisi abasisebenzisayo, okuholela ekutheni izindleko zangempela zobuchwepheshe obuphezulu be-DIG zibe phezulu.