Eyokuqala, ukuhlolwa kukagesi

PCB enqubeni yokukhiqiza, kunzima ukugwema isekethe elifushane, ukuvulwa kwesekethe nokuvuza okubangelwa izinto zangaphandle, ezinamaphutha kagesi, kuhambisana nokuqhubeka okuya kuma-PCB aphezulu, isikhala esihle kanye nokuvela kwamazinga amaningi, nokwehluleka ukufika ngesikhathi ukuhlolelwa ipuleti embi, bese kuyidedela ingene kule nqubo, nakanjani kuzodala izindleko eziningi, ngakho-ke ngaphezu kokuthuthuka kokulawulwa kwenqubo, Amasu wokuhlola athuthukisiwe anganikeza nabakhiqizi be-PCB izixazululo zokwehlisa amanani ezinto ezilahliwe nokwenza ngcono umkhiqizo.

Enqubweni yokukhiqizwa kwemikhiqizo ye-elekthronikhi, ukulahleka kwezindleko okubangelwe ukukhubazeka kunama-degree ahlukene esigabeni ngasinye, kanti lapho kutholakala kuqala, kwehla izindleko zokulungisa. Umthetho we-10 “s uvame ukusetshenziselwa ukulinganisa Izindleko zokulungiswa lapho i-PCB itholakala inephutha ezigabeni ezahlukahlukene zenqubo. Isibonelo, ngemuva kokuphothulwa kokukhiqizwa kwepuleti elingenalutho, uma ibhodi elikusekethe lingatholwa ngesikhathi sangempela, imvamisa kudingeka kuphela lilungise iphutha, noma ukulahleka kwepuleti elingenalutho; Kodwa-ke, uma isifunda singatholakali, ibhodi lithunyelwa kusihlanganisi esezansi ukuqedela ukufakwa kwezingxenye, kanye nethini lesithando ne-IR remelting, kepha isifunda sitholwa ngalesi sikhathi, isihlanganisi esezansi esezansi sizocela inkampani engenalutho yokukhiqiza ibhodi ukukhokhela izindleko zezingxenye, imali enzima yemboni, imali yokuhlola, njll. Uma ngeshwa, ibhodi elonakele lingatholakali esivivinyweni somkhakha womhlangano, kodwa ohlelweni lwemikhiqizo eseqedile, njengamakhompyutha, omakhalekhukhwini, izingxenye zezimoto, njalonjalo, ukuhlolwa kokuthola ukulahleka, ukungatholakali ngesikhathi esifanele kwebhodi izikhathi eziyikhulu, izikhathi eziyinkulungwane, noma ngaphezulu. Ngakho-ke, ukuhlolwa kukagesi kwabakhiqizi be-PCB kumayelana nokutholwa kokuqala kwamabhodi angalungile.

I-opharetha esezansi ngokuvamile idinga ukuthi umenzi we-PCB enze amaphesenti ayi-100 okuhlola ugesi ngakho-ke uyavumelana nomenzi we-PCB ngokucaciswa kwezimo nezindlela zokuhlola, ngakho-ke zombili izinhlangothi zizoqala zichaze ngokusobala okulandelayo:

1. Umthombo wedatha yokuhlola nefomethi

2, izimo zokuhlola, njengevolthi, zamanje, ukwahlukanisa nokuxhuma

3. Indlela yokukhiqiza nokukhethwa kwemishini

4. Isahluko sokuhlola

5, ukulungisa imininingwane

Kunezigaba ezintathu ekukhiqizeni i-PCB okumele kuhlolwe:

1. Ngemuva kokufaka ungqimba wangaphakathi

2. Ngemuva kokufaka isekethe engaphandle

3, umkhiqizo oqediwe

Isigaba ngasinye sizoba nezikhathi ezi-2 ~ 3 zokuhlolwa okungu-100%, sikhiphe ipuleti elibi ukuze lisetshenzwe kanzima. Ngakho-ke, isiteshi sokuhlola futhi siwumthombo ongcono kakhulu wokuqoqwa kwedatha ukuhlaziya amaphuzu enkinga yenqubo. Ngokuya ngemiphumela yezibalo, ungathola iphesenti lesekethe evulekile, isekhethi elifushane nezinye izinkinga zokufaka, bese uvivinya ngemuva kokufaka kabusha. Ngemuva kokuhlunga idatha, sebenzisa indlela yokulawula ikhwalithi ukuthola umsuka wenkinga nokuyixazulula.

Zimbili, indlela yokukala kagesi nemishini

Izindlela zokuhlola zikagesi zifaka: I-Grid ezinikezelwe, i-Universal Grid, i-Flying Probe, i-e-beam, indwangu yokuhamba, Amandla ne-ATG-scan MAN yizinto ezintathu ezisetshenziswa kakhulu. Imishini yokuhlola ekhethekile, umshini wokuhlola ojwayelekile nomshini wokuhlola inaliti endizayo. Ukuze uqonde kangcono imisebenzi yedivayisi ngayinye, izici zamadivayisi amathathu amakhulu ziqhathaniswa ngezansi.

1. Ukuhlolwa okuzinikezele

Ukulungiswa (okufana nezikhonkwane nokudayela okusetshenziselwa ukuhlola amabhodi wesifunda) kusebenza kuphela ngenombolo yento eyodwa. Amabhodi anezinombolo zezinto ezahlukahlukene awakwazi ukuhlolwa nokuvuselelwa kabusha. Ngokuya ngamaphoyinti okuhlola, iphaneli elilodwa lingahlolwa ngaphakathi kwamaphoyinti ayi-10,240, futhi izinhlangothi zombili zingaphakathi kwamaphoyinti angu-8,192. Ngokuya ngobukhulu bokuhlolwa, ngenxa yokushuba kwekhanda le-probe, kufaneleke kakhulu kumabhodi angaphezulu kwe-pitch.

2. Ukuhlolwa kweGridi Yomhlaba Wonke

Umgomo oyisisekelo wokuhlola ukusetshenziswa okujwayelekile ngukuthi ukwakheka kwesifunda se-PCB kuklanywe ngokuya ngeGridi. Ngokuvamile, lokho okubizwa ngokuthi ukuminyana komugqa kubhekise ebangeni leGridi, ekhonjiswa yiPitch (kwesinye isikhathi nayo ingakhonjiswa ngobuningi bemigodi), futhi ukuhlolwa kokusetshenziswa okujwayelekile kusekelwe kulo mgomo. Ngokwesikhundla somgodi, i-substrate ye-G10 isetshenziswa njengeMask. Kusendaweni yomgodi kuphela, iphenyo ingadlula kuMask ngesilinganiso sikagesi, ngakho-ke ukwenziwa kwesakhiwo kulula futhi kuyashesha, futhi iphenyo lingaphinda lisetshenziswe. I-Grid ejwayelekile elungisiwe ithreyi enkulu yenaliti enamaphoyinti amaningi wokulinganisa ingasetshenziswa ukukhiqiza itreyi yenaliti yokuhambisa ephathekayo ngokuya ngezinombolo ezahlukahlukene zezinto. Uma nje ithreyi yenaliti eshukumayo ishintshwa ngesikhathi sokukhiqizwa kwezinto ngobuningi, ingasetshenziselwa ukuhlolwa kokukhiqizwa kwenqwaba yezinombolo zezinto ezahlukahlukene. Ngaphezu kwalokho, ukuze kuqinisekiswe ukuthi uhlelo lwesifunda lwebhodi le-PCB eliqediwe aluvinjelwe, kuyadingeka ukwenza ukuhlolwa kukagesi okuVulekile / Okufushane ebhodini ngepuleti yenaliti lephoyinti elithile lokuxhumana emshinini wokulinganisa kagesi ojwayelekile onamandla aphezulu ( njengama-250V) amaphuzu wokulinganisa amaningi. Lolu hlobo lomshini we-TesTIng jikelele lubizwa nge- “AutomaTIc TesTIng Equipment” (ATE).

Amaphuzu wokuhlola asetshenziswa ngokujwayelekile ngokuvamile angaphezu kwamaphoyinti ayi-10,000, futhi ukuminyana kokuhlolwa kubizwa ngokuthi yi-on-grid test. Uma sisetshenziswa kumabhodi anoxinano oluphakeme, isikhala siseduze kakhulu, futhi sehlukanisiwe ekwakhiweni kwegridi, ngakho-ke kungokwesivivinyo se-off-grid, futhi isakhiwo kufanele sakhiwe ngokukhethekile. Ubuningi bokuhlolwa kohlolo olujwayelekile bungafika ku-QFP.

3. Ukuhlolwa kwe-Flying Probe

Umgomo wokuhlolwa kwenaliti endizayo ulula kakhulu. Kuphela ama-probe amabili kuphela adingekayo ukuhambisa u-x, y no-Z ukuhlola imiphetho emibili yomugqa ngamunye ngamunye, ngakho-ke asikho isidingo sokwenza enye into ebizayo. Kodwa-ke, ngenxa yokuhlolwa kokuphela, isivinini sokulinganisa sihamba kancane, cishe amaphuzu ayi-10 ~ 40 / i-SEC, ngakho-ke kufanelekile kumasampula nokukhiqizwa kwevolumu encane; Ngokuya ngobuningi bokuhlola, ukuhlolwa kwenaliti endizayo kungasetshenziswa kumapuleti aphezulu kakhulu (), njenge-MCM.