Imithetho Yokuklama Ukubhoboza i-PCB Yokukhiqiza Okuthembekile kwe-PCB

Ukubhoboza i-PCB akuyona nje isinyathelo sokwenza imigodi ekwakhiweni kwebhodi. Kungenye yezigaba zokukhiqiza ezibaluleke kakhulu ezithinta ukuthembeka kukagesi, ukulingana kwezingxenye, ikhwalithi yokubeka amapulangwe, ukubhaliswa kokufakwa kwe-stack, ukwenza ngcono i-CAM, kanye nezindleko zokukhiqiza eziphelele. Konjiniyela, ukwakheka kokubhoboza kuthinta ngqo ukuthi i-PCB kulula ukuyikhiqiza, ukuthi ngabe ngezakhiwo ithembekile yini, nokuthi ibhodi lokugcina lingahlangabezana yini nemigomo yokusebenza kanye nesabelomali. Konjiniyela be-CAM, amafayela okubhoboza, ukukhethwa kosayizi wamathuluzi, ukubekezelela imigodi, kanye nenani lemigodi konke kuthonya ukuthi umsebenzi ungacutshungulwa kahle kangakanani nokuthi ingozi yokukhiqiza ingakanani engeniswa ngaphambi kokuba kuqale ukukhiqizwa.

Kwa-Highleap Electronics, sisekela imiklamo edinga ukubhoboza kakhulu ngokwenziwa kwe-PCB kwamabhodi ajwayelekile anezingqimba eziningi, izakhiwo ze-HDI, i-electronics yezimboni, imikhiqizo yokuxhumana, kanye neminye imiklamo eyinkimbinkimbi lapho ikhwalithi yokubhoboza ibalulekile ekukhiqizeni nasekuthembekeni kwesikhathi eside. Lo mhlahlandlela uchaza ukubhoboza kwe-PCB ngokombono wokuklama, ubunjiniyela be-CAM, ukukhiqizwa, kanye nokulawula izindleko, ukuze onjiniyela bakwazi ukwenza izinqumo ezingcono ngaphambi kokukhishwa baye ekukhiqizweni.

Kungani Ukubhoboza i-PCB Kubaluleke Kakhulu Kunokuba Abaklami Abaningi Bakulindele

Ukubhoboza nge-PCB kuthinta okungaphezu nje kokuthi umgodi uvela endaweni efanele. Ekwenzeni amabhodi esimanje, imigodi ebhoboziwe ivame ukuba yingxenye yesakhiwo sikagesi, isakhiwo sokuhlanganiswa, kanye nesakhiwo somshini somkhiqizo ngesikhathi esisodwa. Isinqumo esibi sokubhoboza esigabeni sokuklama singabangela ukuqhekeka kwendandatho ye-annular, ubuthakathaka beplati, umonakalo odongeni lwemigodi, ukwehluleka kokubhaliswa, izinguquko zamathuluzi ezingadingekile, ingozi enkulu yezinsalela, kanye nokwenyuka kwezindleko okungagwenywa.

Isibonelo, i-via eyamukelekayo ngogesi kuhlelo ingase ibize kakhulu noma ibe yingozi ekukhiqizeni uma usayizi wokubhoboza umncane kakhulu, isilinganiso sesici siphezulu kakhulu, noma indandatho ye-annular incane kakhulu. Ngendlela efanayo, umklamo onamathuluzi amaningi okubhoboza angewona ajwayelekile ungandisa ubunzima be-CAM kanye nesikhathi sokukhiqiza ngaphandle kokunikeza noma iyiphi inzuzo yangempela kagesi.

Yingakho ukubhoboza kungafanele kuphathwe njengemininingwane emincane yefayela lokukhipha. Kuyisihloko esiyinhloko se-DFM esithinta ikhwalithi yokukhiqiza, ukuthembeka, kanye nezindleko kusukela ekuqaleni.

Izinhlobo Zemigodi Ye-PCB Nenhloso Yazo Yokukhiqiza

Izakhiwo ezahlukene zemigodi zisetshenziswa ekukhiqizweni kwe-PCB ngezidingo ezahlukene zikagesi nezomshini. Uhlobo ngalunye luphinde ludale izidingo ezahlukene zokukhiqiza.

• Imbobo edlulayo ehlanganisiwe (PTH): kubhobozwe ukujiya kwebhodi eligcwele kanye nokufakwa kwethusi kamuva. Kusetshenziselwa izingxenye zemigodi edlulayo kanye nokuxhumeka kukagesi okujule kakhulu phakathi kwezingqimba.
• Imbobo edlulayo engamboziwe (NPTH): imbobo yomshini engenaso isivikelo sethusi. Isetshenziselwa ukufaka, ukusebenzisa amathuluzi, noma izici zokuqondanisa.
• Impumputhe nge: ixhuma ungqimba lwangaphandle kungqimba olulodwa noma ngaphezulu lwangaphakathi ngaphandle kokudlula ebhodini eligcwele.
• Ungcwatshwe nge: itholakala ngokuphelele phakathi kwezingqimba zangaphakathi futhi ayibonakali ebusweni obungaphandle.
• I-Microvia: encane kakhulu ebholwe nge-laser, evame ukusetshenziswa ku I-HDI PCB imiklamo yokuxhumanisa izendlalelo eziseduze.
• Umgodi wokubhoboza ngemuva: imbobo ejulile elawulwayo esetshenziswa ukususa ngezinti eziklanyweni zesivinini esikhulu.
• Imbobo enezikhala: ukuvulwa okude okunomshini noma okufakwe ipulasitiki okusetshenziselwa izixhumi, amatheminali, noma izidingo zokulingana komshini.

Lezi zinhlobo zemigodi zingase zifane kumafayela okukhiphayo, kodwa azicutshungulwa ngendlela efanayo ekukhiqizeni. Yingakho idatha yokubhoboza kumele ihlukanise ngokucacile imigodi efakwe ipulasitiki kanye nengafakwe ipulasitiki, izidingo zemigodi eqediwe, kanye nanoma yiziphi izakhiwo zokwakha ezilawulwayo noma ezilandelanayo.

Usayizi Omncane Wokubhoboza, Usayizi Wembobo Oqediwe, kanye Nesinxephezelo Sokubhoboza

Esinye sezihloko ezibaluleke kakhulu konjiniyela ubudlelwano phakathi kosayizi wokubhoboza nosayizi womgodi oqediwe . Umgodi ochazwe ekwakhiweni uvame ukuba usayizi oqediwe odingekayo, hhayi usayizi wangempela webhithi lokubhoboza osetshenziswa ekwenzeni.

Lokhu kubalulekile ngoba imigodi efakwe amapulangwe iba mincane ngemva kokubhoboza ngenxa yokufakwa kwethusi kanye nemiphumela yenqubo. Ukuze kufezwe umgodi oqediwe oqondiwe, ithuluzi langempela lokubhoboza ngokuvamile kudingeka libe likhulu kunosayizi wokugcina odingekayo.

Izinto ezijwayelekile zokucatshangelwa kokuklama zifaka:

• Usayizi wembobo oqediwe: ububanzi bokugcina obungasetshenziswa ngemva kokufaka iplati
• Isinxephezelo sokubhoboza: ububanzi obengeziwe bokubhoboza obudingekayo ukuze kufezwe umgomo womgodi oqediwe
• Ukujiya kweBhodi: amabhodi amakhulu adala izinselele ezinkulu zokubhoboza kanye nokufaka amapuleti
• Isilinganiselo: isilinganiso sobukhulu bebhodi nobubanzi bembobo ebholiwe

Kumaphrojekthi angempela, umkhuba omuhle kakhulu ukungacindezeli usayizi wokubhoboza ube mncane ngangokunokwenzeka ngoba nje ithuluzi lokuklama likuvumela. Umbuzo ofanele uwukuthi ingabe usayizi womgodi uyadingeka, uyakhiqizwa, futhi uyabiza kahle yini ku-stack-up kanye ne-track yokuthembeka.

Ukubekezelelana Kwemigodi, Ukunemba Kwesikhundla, kanye Nokulawulwa Kwendandatho Ehlanganisiwe

Usayizi wembobo wodwa awanele. Onjiniyela nabo kudingeka baqonde ukubekezelelana nokubhaliswa. Ngisho noma ububanzi bembobo bulungile, umphumela oqediwe usengahluleka uma imbobo ingasekho noma iseduze kakhulu nomphetho wephedi.

Amaphuzu okulawula abalulekile afaka:

• Ukubekezelelana kwembobo okuqediwe: inquma ukuthi izintambo zezingxenye, izikhonkwane zokufaka ukucindezela, kanye nezingxenye zemishini zizolingana kahle yini
• Ukubekezelela indawo yembobo: inquma ukuthi imbobo ihlala iphakathi nendawo ngaphakathi kwephedi
• Iringi ye-Annular: indandatho yethusi esele izungeze umgodi obholiwe ngemva kokusetshenziswa kokubekezelelana kokukhiqiza
• Ingozi yokuqubuka: kwenzeka lapho imbobo ebholiwe isondela kakhulu noma idlule umngcele wephedi

Konjiniyela be-CAM, yilapho ukubuyekezwa komklamo kuba yinto ebalulekile khona. Ububanzi bemigodi, usayizi wephedi, ukufakwa kwe-tolerance stack, kanye nokubhaliswa kwezingqimba kumele kuhlolwe ndawonye. Umklamo onobukhulu bemigodi enamandla kanye nendandatho ebuthakathaka ye-annular ungadlula ukuhlolwa okulula kwe-CAD kodwa usadala ingozi enkulu yokukhiqiza.

Uma ibhodi lifaka imigqa ye-RF enembile noma izakhiwo ezibhobozwe ngemuva, lezo zinqumo zokubekezelelana nazo zixhumana nesu lokuklama le-PCB elibanzi elivame kakhulu .

Ukubhoboza Kwemishini vs Ukubhoboza Nge-Laser

Iningi lemigodi ye-PCB isakhiwa ngokubhoboza ngomshini , kodwa ukubhoboza nge-laser kubalulekile ezakhiweni eziningi ze-HDI. Ukukhetha phakathi kwazo akuyona nje into ekhethwayo kwezobuchwepheshe. Kuthinta uhlobo, isu lesendlalelo, izindleko, kanye nokukhiqizwa.

Ukubhoboza ngemishini kusalokhu kuyisixazululo esiyinhloko samabhodi ajwayelekile anezingqimba eziningi. Ukubhoboza nge-laser kuba yinto edingekayo lapho ubuningi bokuxhumana budlula lokho okungasekelwa yizibhoboza ngemishini ngokonga noma ngokuthembekile.

Indlela Onjiniyela be-CAM Abathuthukisa Ngayo Amafayela Okubhoboza e-PCB

Lena enye yezingxenye ezinganakwa kakhulu zokubhoboza kwe-PCB ohlangothini lwamakhasimende. Ifayela lokubhoboza aliyona nje into ephumayo. Lingenye yezindawo eziyinhloko zokwenza ngcono i-CAM emsebenzini wobunjiniyela.

Ngaphambi kokukhishwa ekukhiqizweni, onjiniyela be-CAM bavame ukubuyekeza:

• Ukuhlanganiswa kosayizi wamathuluzi: ukuthi ubukhulu bemigodi efanayo bungahlanganiswa ngokuphephile yini ukuze kuncishiswe inani lamathuluzi
• Ukuhlukaniswa kwe-PTH vs NPTH: ukuthi izimbobo ezifakwe ipulasitiki kanye nezingenapulasitiki zichazwe ngokucacile yini
• I-logic yobukhulu bembobo eqediwe vs yokubhoboza: ukuthi inhloso yokuklama iyahambisana yini nesinxephezelo sangempela sokukhiqiza
• Inani lemigodi ngethuluzi: ukuthi usayizi othile wokubhoboza udala umthwalo wamathuluzi omningi noma isikhathi sokujikeleza esingajwayelekile
• Ukucutshungulwa kwe-Slot kanye nembobo ekhethekile: kungakhathaliseki ukuthi izikhala, izinki eziphikisayo, noma imigodi ejulile elawulwayo idinga ukwelashwa okukhethekile komzila noma ukubhoboza
• Ukuqinisekiswa kwendandatho ehlanganisiwe: ukuthi osayizi bamathuluzi akhethiwe bazohlala bekhiqizwa yini ngemva kokusetshenziswa kokubekezelelana

Ukulungiswa okuhle kwe-CAM kuthuthukisa okungaphezu nje kokukwazi ukukhiqiza. Kunganciphisa izinguquko zamathuluzi okubhoboza, kunciphise isikhathi sokukhiqiza, kunciphise ukucindezeleka kwamathuluzi, kuthuthukise isivuno, futhi kusize ekuqiniseni izindleko. Idatha embi yokubhoboza yenza okuphambene nalokho: amathuluzi amaningi, ubunzima obukhulu, isikhathi sokubuyekeza esiningi, kanye nengozi enkulu yokukhiqiza.

Yingakho futhi imithetho yokubhoboza kufanele ihlolwe ngesikhathi sokuklama i-PCB , hhayi nje kuphela ngemva kokuba amafayela e-Gerber kanye ne-drill eseqediwe.

Indlela Ukubalwa Kwemigodi kanye Nezinguquko Zamathuluzi Ezithinta Ngayo Izindleko Nesikhathi Sokuhola

Onjiniyela abaningi bacabanga ukuthi izindleko zivela kakhulu ngobukhulu bebhodi, inani lezingqimba, kanye nokuphela kwendawo. Eqinisweni, ukubhoboza kungaba nomthelela omkhulu wezindleko, ikakhulukazi emabhodini ayinkimbinkimbi.

Izinto ezibangela izindleko eziyinhloko ezihlobene nokubhoboza zihlanganisa:

• Inani eliphelele lemigodi: izimbobo ezengeziwe zisho isikhathi eside somshini
• Inani lamathuluzi okubhoboza: ububanzi bamathuluzi obuningi busho ukusethwa okwengeziwe kanye nobunzima be-CAM obuningi
• Amaphesenti emigobo emincane: izimbobo ezincane zandisa ukuzwela kwenqubo futhi zingadinga izimo zokukhiqiza ezihamba kancane
• Ubukhulu bokunqwabelana: amabhodi amakhulu enza kube nzima ukubhoboza nokufaka iplati
• Ukubhoboza ngemuva noma ukubhoboza ngokujula okulawulwayo: kunezela ubunzima benqubo
• Okuqukethwe kwe-HDI microvia: ngokuvamile kwandisa kakhulu izindleko zokukhiqiza

Ukuze kulawulwe izindleko, omunye wemikhuba emihle kakhulu yokuklama ukugwema ukushintshashintsha kosayizi wokubhoboza okungadingekile. Uma osayizi ababili bemigodi besebenza umsebenzi ofanayo, ukubenza bafane kungenza kube lula kokubili umsebenzi we-CAM kanye nokukhiqiza.

Izinkinga Ezivamile Zokubhoboza I-PCB Nendlela Yokuzivimbela

Amaphutha okubhoboza avame ukubonakala “njengamaphutha okubhoboza” kumakhasimende. Esikhundleni salokho, angabonakala kamuva njengokwehluleka kweplati, amasekethe avulekile, ukuqhekeka, izinkinga zokulingana kwenhlangano, noma ama-via angathembekile ekujikelezeni kokushisa.

Izinkinga ezijwayelekile zihlanganisa:

• Ukuzulazula nge-drill: umgodi uyaphambuka enkabeni yawo ngenxa yokuziphatha kwezinto noma izimo zokubhoboza
• Phuma: unqenqema lwembobo lusika eduze kakhulu noma ngale komngcele wephedi
• Ukugcoba: insalela ye-resin ihlala ezindongeni zemigodi futhi ithinta ukwenziwa kwensimbi okulandelayo
• Udonga olunembobo enzima: kunciphisa ukuthembeka kweplati futhi kwandisa ingozi yokuxhumana
• Ukuphuka kwebhobozi: ikakhulukazi ngamathuluzi amancane, ukubhoboza okujulile, noma ukususwa okungekuhle kwama-chip
• Ama-Burrs noma imfucumfucu: kungathinta ukuhlanzeka kanye nokuzinza kwenqubo kamuva

Iningi lalezi zinkinga lincishiswa yinhlanganisela yemithetho yokuklama engcono, ukubuyekezwa okungcono kwe-CAM, imingcele efanele yokubhoboza, kanye nezibonelelo zokukhiqiza ezingokoqobo.

Imithetho ye-DFM Yomklamo Ongcono Wokubhoboza we-PCB

Uma umgomo uwukukhiqiza okungcono, izindleko eziphansi, kanye nokuthembeka okuphezulu kokubhoboza, le mithetho ibalulekile:

• Sebenzisa usayizi omkhulu kakhulu wokubhoboza osebenzayo: ungakhethi imigodi emincane ngaphandle kokuthi umklamo uyidinga ngempela
• Gcina indandatho ehlanganisiwe eyanele: nikeza inqubo yokubhoboza igumbi lokubekezelelana okungokoqobo kwesimo
• Hlela osayizi bamathuluzi ngendlela efanele lapho kungenzeka khona: Amathuluzi okubhoboza ambalwa avame ukusho ukuthi kulula ukwenza ngcono i-CAM kanye nokusebenza kahle okungcono
• Hlukanisa izimbobo ezifakwe upulasitiki kanye nezingenapulasitiki ngokucacile: ungalokothi wenze i-CAM iqagele
• Qondanisa isakhiwo sembobo ne-stack-up: ungaphoqi imigodi lapho ama-microvia noma izakhiwo zokwakha ezilandelanayo zifaneleka khona kakhulu
• Buyekeza isilinganiso sesici kusenesikhathi: ikakhulukazi amabhodi amakhulu kanye nezimbobo ezincane ezimboziwe
• Cabanga ngesidingo sokugcina sokuhlanganiswa: ukulingana kwesixhumi, ukubekezelela ukulingana kokucindezela, kanye nokufakwa kwephini konke kuncike ekulawulweni kwembobo okuqediwe okungokoqobo

Onjiniyela abaphatha ukubhoboza njengengxenye ye-DFM—hhayi nje ingxenye yomkhiqizo we-CAD—ngokuvamile bathola ukuvunyelwa kwe-prototype okusheshayo, ukubuyekezwa kwe-CAM okuhlanzekile, isivuno esingcono, kanye nokusebenza kwebhodi okuzinzile kakhudlwana. Uma uqinisekisa umklamo omusha, ukuqala ngokwakhiwa kwe -PCB ye-prototype ngokuvamile kuyindlela engcono kakhulu yokuqinisekisa ukuthi izakhiwo zokubhoboza, ukubekezelelana kwemigodi, kanye nezinqumo zokuhlanganisa konke kuyakhiqizwa ngaphambi kokukhishwa kwevolumu.

Thola Isilinganiso Somklamo Wakho Wokubhoboza we-PCB

Imibuzo Evame Ukubuzwa Ngokubhoboza i-PCB

Uyini umehluko phakathi kosayizi wokubhoboza nosayizi womgodi oqediwe ekukhiqizweni kwe-PCB?

Usayizi wokubhoboza ububanzi bamathuluzi asetshenziswa ngesikhathi sokwenziwa. Usayizi wembobo oqediwe ububanzi bokugcina ngemva kokubhoboza nokucubungula. Emigodini ebhoboziwe, ububanzi obuqediwe buvame ukuba buncane kunobubanzi bokuqala bokubhoboza.

Uyini usayizi omncane wokubhoboza ojwayelekile we-PCB ejwayelekile?

Lokho kuncike esakhiweni sebhodi, ukujiya, kanye nekhono lomkhiqizi, kodwa ukubhoboza okuvamile kwemishini kuvame ukuba kukhulu kunezakhiwo ze-HDI microvia. Izimbobo ezincane kakhulu zingenzeka, kodwa zandisa ubunzima bokukhiqiza kanye nezindleko.

Kungani inani lemigodi lithinta izindleko ze-PCB?

Ngoba isikhathi sokubhoboza, izinguquko zamathuluzi, ukuphathwa kwemigodi emincane, kanye nobunzima be-CAM konke kuyanda njengoba inani lemigodi kanye nezinhlobo zokubhoboza zikhula.

Kungani ukubuyekezwa kwe-CAM kubalulekile kumafayela okubhoboza e-PCB?

Ngoba onjiniyela be-CAM baqinisekisa osayizi bamathuluzi, izincazelo zembobo ezifakwe ipulasitiki noma ezingafakwanga ipulasitiki, ukuphepha kwendandatho ye-annular, ukukhiqizwa, kanye namathuba okuthuthukisa ngaphambi kokuba ibhodi liqale ukukhiqizwa.

Kufanele kusetshenziswe nini ukubhoboza nge-laser esikhundleni sokubhoboza ngemishini?

Ukubhoboza nge-laser kusetshenziselwa kakhulu ama-microvia kanye nemiklamo ye-HDI lapho ubukhulu bemigodi buncane kakhulu noma buqinile kakhulu ukuze kubhobozwe ngomshini ngendlela engokoqobo.