I-pcb eyinhloko kumadivayisi kagesi ifana nesisekelo cishe yonke igajethi yesimanje. Leli bhodi lesifunda linikeza kokubili ukusekela futhi livumela ugesi ukuthi ugeleze, ukuze izingxenye ezifana nama-chip nezinzwa zisebenze ndawonye. Imibiko ibonisa ukuthi i-pcb manje iyinhliziyo yamadivayisi kusukela kumafoni kuya ezimotweni. Ama-PC aqinile asiza ama-resistors, ama-capacitor, nama-semiconductors ukuthi axhume futhi ahlale endaweni. Imakethe yalawa mabhodi yayingaphezu kwamaRandi ayizigidi eziyizinkulungwane ezingama-60 ngo-2014 futhi kulindeleke ukuthi ibe nkulu nakakhulu.
I-Metric | Inani/Incazelo |
|---|---|
Usayizi wemakethe ngo-2014 | Ngaphezu kwe-US $ 60.2 billion |
Usayizi wemakethe olinganiselwe ngo-2024 | US $ 80.33 billion |
Isibikezelo sikasayizi wemakethe ngo-2029 | US $ 96.57 billion |
Ukwazi ngesakhiwo, izinto zokwakha, nokuthi i-pcb yenziwa futhi ihlanganiswe kanjani kusisiza sibone ukuthi kungani i-pcb eyinhloko kumishini kagesi ibaluleke kakhulu.
Izitoreji Eziyinhloko
I-PCB eyinhloko ifana nomgogodla wemishini kagesi. Ibamba izingxenye endaweni. Ivumela ugesi ukuthi uhambe phakathi kwezingxenye.
Ama-PCB angaba nohlangothi olulodwa, oluhlangothini olukabili, noma izendlalelo eziningi. Uhlobo ngalunye lwenzelwe izidingo zedivayisi ezahlukene.
Ukukhetha izinto ezifanele futhi izendlalelo zisiza ama-PCB asebenze kangcono. Kubenza bahlale isikhathi eside. Ukukhetha okuhle kubasiza ukuthi baphathe ukushisa namasignali kahle.
Ukwenza i-PCB kudinga idizayini ecophelelayo, i-etching, ukubhoboza, kanye i-soldering. Kunokuhlolwa kwekhwalithi okuqinile ukuze kuqinisekiswe ukuthi kusebenza kahle.
Imishini isiza ukubeka izingxenye endaweni efanele. Baphinde bathole izinkinga kusenesikhathi. Lokhu kwenza amadivayisi athembeke kakhulu.
I-PCB eyinhloko kumadivayisi kagesi
Imisebenzi Eyisisekelo
The pcb main kumadivayisi kagesi yisisekelo sazo zonke izingxenye. Inikeza imisebenzi emibili ebalulekile: ukubamba izingxenye kanye nokuvumela ugesi uhambe. I-pcb iyibhodi eliyisicaba eligcina ama-chips, ama-resistors, nama-capacitor endaweni. Ithusi namaphedi kwenza izindlela zikagesi uhambe phakathi kwezingxenye. Lokhu kusetha kuvumela idivayisi ukuthi isebenze njengeyunithi eyodwa.
I-pcb inezingqimba eziningi. Isendlalelo ngasinye senza okuthile okukhethekile. I-substrate yenza ibhodi liqine futhi lizinze. I-foil yethusi yenza izindlela zikagesi. Imaski ye-solder igcina ibhodi liphephile futhi isiza ukulihlanganisa. Isikrini sikasilika sengeza amalebula ukusiza abantu bazi ukuthi izinto ziyaphi.
Qaphela: Ukuthi ibhodi lihlanganiswa kanjani liyawashintsha amandla alo nokuthi lisebenza kahle kangakanani. Ukukhweza ngembobo kubamba izingxenye ezinzima ziqine. Ubuchwepheshe bokukhweza phezulu buvumela amabhodi abe mancane futhi anemininingwane eyengeziwe.
Ukwenza i-pcb kuthatha izinyathelo eziningi. Abaqambi bahlela isakhiwo kuqala. Babeka iphethini ebhodini ngezithombe ezikhanyayo noma eziqondile. Ithusi elengeziwe liyasuswa, kusale kuphela izindlela ezidingekayo. Ukubhoboza kwenza izimbobo ukuze izendlalelo zixhumeke futhi izingxenye zilingane. I-soldering, ukuhlola, nokuhlanza kuza ngokulandelayo ukuze uqiniseke ukuthi ibhodi lisebenza kahle.
Ukubaluleka
I-pcb eyinhloko kumadivayisi kagesi isiteji esikhulu, esivame ukubizwa ngokuthi i-motherboard. Ixhuma i-CPU, inkumbulo, nezinye izingxenye ezibalulekile. Lesi sixhumanisi sibalulekile ekutheni idivayisi isebenza kanjani ngokushesha nakahle. I-pcb isetshenziswa emikhiqizweni eminingi, kusukela emabhodini alula kuya kweyinkimbinkimbi kakhulu. Uhlobo ngalunye lwenzelwe izidingo ezihlukene, njengokulondoloza indawo noma ukusebenza ngesivinini esiphezulu.
Isigaba | Imininingwane Nokubaluleka |
|---|---|
Iqhaza elikhulu le-PCB | Inkundla emaphakathi evumela i-CPU, inkumbulo, nezinye izingxenye ukuthi zikhulume zodwa, okuwukhiye wokuthi idivayisi isebenza kanjani. |
Izinhlobo zomkhiqizo | Uhlangothi olulodwa, oluhlangothini olukabili, Ungqimba oluningi, oluqinile, oluguquguqukayo, oluguquguqukayo |
Izicelo | Consumer electronics, Automotive, Industrial, Healthcare, Aerospace & Defense |
Izinhlobo ze-Substrate | FR-4, Polyimide, PTFE, Ceramics |
Imininingwane Yemakethe | Imiklamo nezinto zokwakha ziyashintsha njengoba amadivaysi eba ngcono, okubonisa ukuthi i-pcb ibaluleke kakhulu kunangaphambili. |
Izinkambu eziningi zisebenzisa i-pcb eyinhloko kumishini kagesi. Lokhu kuhlanganisa izinto zikagesi, izimoto, amathuluzi ezokwelapha, nezindiza. Ama-PC amaningi asiza ngokwenza izinto zisheshe, ukunciphisa ukuphazamiseka, nokwenza amadivayisi abe mancane futhi aqine.
Ama-PC amaningi enza amasignali abe ngcono futhi anciphise ukuphazamiseka.
Izindlela ezintsha zokuklama nokwakha zisiza ukumisa ukushisa ngokweqile futhi zenze amadivayisi ahlale isikhathi eside.
Amasheke ngesikhathi sokwakha aqinisekisa ukuthi ibhodi ngalinye lisezingeni.
Imiklamo yangokwezifiso ivumela i-pcb ukuthi isebenze ezintweni eziningi, kusukela ezintweni ezigqokekayo ezincane ukuya emishinini emikhulu.
Kokubili imishini nabantu basiza ukuhlanganisa ibhodi. Imishini ibeka izingxenye ngokushesha futhi endaweni efanele. I-reflow soldering ibamba izingxenye ziqine futhi ivumele ukuhamba kukagesi. Ukuhlola kokugcina nokuhlanza kuqinisekisa ukuthi idivayisi izosebenza kahle.
I-pcb eyinhloko kumishini kagesi iphakathi nendawo yawo wonke amagajethi esimanje. Idizayini yayo ehlakaniphile, ukwakha okucophelelayo, kanye nobuchwepheshe bokuhlanganisa okuningiliziwe busiza ukuqhubeka buqhubekela phambili.
Isakhiwo se-PCB nezinto zokwakha
Izendlalelo Nezinhlobo
Amabhodi esekethe aphrintiwe anezendlalelo ezisiza ukuxhuma izingxenye. Isendlalelo ngasinye sinomsebenzi waso. I pcb enohlangothi olulodwa iyona elula kunazo zonke. Inongqimba olulodwa lwethusi lwezindlela zikagesi. Amabhodi esekethe aphrinte kabili anethusi nhlangothi zombili. Lokhu kubenza bakwazi ukuphatha amasekhethi ayinkimbinkimbi. I-Multilayer pcbs inqwabelanisa ithusi ne-insulation ezingxenyeni eziningi. Lezi zisetshenziswa kumakhompyutha nama-smartphone.
I-pcb enohlangothi olulodwa: Isetshenziswa ezintweni ezilula njengezibali.
I-pcb enezinhlangothi ezimbili: Itholakala kumarediyo nasezimpahleni zamandla.
I-Multilayer pcb: Isetshenziswa kumakhompyutha aphathekayo, amaphilisi, namathuluzi ezokwelapha.
Indlela onjiniyela abahlela ngayo izendlalelo ishintsha indlela amadivayisi asebenza ngayo. Ucwaningo lwabheka izitaki ezihlukene ze-pcb. Ithole ukuthi inani lezingqimba zesignali, lapho amandla nezingqimba zomhlabathi ziya khona, kanye nobubanzi bethusi bulandelela konke okubalulekile. Umklamo omuhle unganciphisa umsindo futhi umise ukuphazamiseka. Lokhu kwenza amadivayisi athembeke kakhulu. Ucwaningo luphinde lwakala i-dielectric constant (Dk) kanye ne-dissipation factor (Df) kufika ku-15 GHz. Amanani aphansi ka-D kanye ne-Df agcina amasiginali eqinile futhi ecacile. Lokhu bekubaluleke kakhulu kumiklamo esheshayo. I-Material No. 5 isebenze kahle kakhulu. Izimpahla No. 8 kanye No. 3 zazilandela. Lokhu kubonisa ukuthi ukukhetha izendlalelo ezifanele nezinto zokwakha kusiza amadivayisi asebenze kangcono.
Ithiphu: Ama-PC amaningi asiza amadivayisi ukuthi asebenze ngokushesha futhi amise izinkinga ezifana ne-crosstalk kanye nokuphazamiseka kazibuthe.
Izinto Ezibalulekile
The izinto eziyinhloko ku-pcb nquma ukuthi isebenza kahle futhi ihlala kanjani. Amabhodi esekethe amaningi aphrintiwe asebenzisa i-FR-4. Lena ingxube eqinile ye-fiberglass ne-epoxy. Amanye amakhompyutha amasha asebenzisa i-LCNF. Lokhu kungcono endaweni ezungezile. I-LCNF inokufana okufanayo kwe-thermal conductivity njenge-FR-4. Kodwa inokumelana nogesi okuphansi, ikakhulukazi lapho umoya umanzi.
Property | I-LCNF Substrate | I-FR4 Epoxy Glass Fiber Substrate |
|---|---|---|
Ukuqhuba Ukushisa | 0.245 – 0.302 W/mK | ~0.343 W/mK |
Ivolumu Yokumelana Nogesi (0% RH) | 23.9 × 10³ Ω·cm | 10⁸ – 10⁹ Ω·cm |
Ivolumu Yokumelana Nogesi (50% RH) | 14 × 10³ Ω·cm | N / A |
Ivolumu Yokumelana Nogesi (85% RH) | 9 × 10³ Ω·cm | N / A |
Onjiniyela basebenzisa izindlela ezifana ne-Taguchi Method ukuze bahlole izinto zokwakha. Lokhu kubasiza ukuthi bathole imiksi engcono kakhulu ye-pcb ngayinye. Ibavumela ukuthi benze amabhodi esekethe aphrintiwe ahlala isikhathi eside futhi asebenze kangcono. Izinto ezifanele zigcina i-pcb iqinile. Bayisiza ukuthi ibambe ukushisa futhi ivumele amasignali anyakaze ngokulahlekelwa okuncane.
Inqubo Yokukhiqiza ye-PCB
Uhlolojikelele lwezinyathelo
Ukwenza i-pcb inezinyathelo eziningi. Isinyathelo ngasinye sisiza i-pcb ukuthi isebenze kahle futhi ihlale isikhathi eside. Okokuqala, onjiniyela benza uhlelo lokuhlela. Basebenzisa isofthiwe ekhethekile ukuze banqume ukuthi izingxenye nokulandela kuyaphi. Okulandelayo, umklamo ufakwa ebhodini ngokukhanya noma ama-lasers. Lokhu kuqinisekisa ukuthi iphethini icacile futhi ilungile.
I-Copper etching iza ngokulandelayo. Kuthatha ithusi elengeziwe futhi kushiye izindlela ezidingekayo. I-Lamination isebenzisa ukushisa nokucindezela ukuze ucindezele izendlalelo ndawonye. Ukubhoboza kwenza izimbobo zezingxenye kanye nokuxhuma kwezingqimba. Imaski ye-solder ivala ibhodi ukuze iligcine iphephile ekungcoleni nasekulimaleni. Ukuqedwa kobuso kwengeza ungqimba oluncane kumaphedi. Lokhu kusiza ngokuhlanganisa kanye ne-soldering.
Ukuhlola kuyisinyathelo sokugcina ekwenzeni i-pcb. Onjiniyela babheka amasekhethi avulekile, izikhindi, nezinye izinkinga. Basebenzisa amathuluzi afana nemishini ye-AOI ne-X-ray. Lezi zinyathelo zisiza ukuthola izinkinga kusenesikhathi futhi zenze amabhodi amahle kakhulu. Ngokukhiqizwa kwe-pcb enkulu, lezi zinyathelo kufanele zisheshe futhi zilungile.
aspect | Imininingwane kanye nomthelela ku-PCB Manufacturing and Yield Rates |
|---|---|
Izinto Eziguquguqukayo Zokukhiqiza | Ukuqina kwethusi, izinto ezingaphansi komhlaba, kanye nobunkimbinkimbi bomklamo kushintsha ukuthi kulula kangakanani ukwenza ama-pcbs nokuthi mangaki aphuma kahle; ithusi elincane livumela onjiniyela benze izindlela ezincane. |
Izitifiketi Zekhwalithi | I-ISO 9001:2015, amazinga e-IPC (IPC-6012, IPC-A-610), nezinye izitifiketi zisiza ukugcina ikhwalithi nomsebenzi kufana njalo. |
Inspection Technologies | I-3D AOI, ukuhlolwa kwe-X-ray, i-microsectioning, ukuhlaziywa kwe-metallographic, nokuhlolwa kukagesi kusiza ukuthola amaphutha kanye nokwehlisa imfucuza. |
Ukulawulwa kwenqubo yezibalo | Ukubuka izinyathelo ezibalulekile ngesikhathi sangempela kusiza ukubona izinkinga kusenesikhathi, ngakho-ke kukhona amaphutha ambalwa namabhodi amahle kakhulu. |
Amandla Obuchwepheshe | Imishini ethuthukile namakhono e-DFM asiza ukwenza ama-pcb angcono, ukusuka kumasampuli okuqala ukuya kuma-oda amakhulu. |
Ikhwalithi yokulawula
Ukulawulwa kwekhwalithi kusebenzisa izivivinyo eziningi namasheke ekwenzeni i-pcb. Lawa masheke aqinisekisa ukuthi i-pcb ngayinye ilungile ngokwanele. Onjiniyela basebenzisa amasheke abonakalayo nawe-X-ray ukuze bathole izinkinga phezulu nangaphakathi. Ukuhlolwa kwe-peel kubonisa ukuthi izendlalelo zinamathelana kahle yini. Ukuhlolwa kwe-Solderability hlola ukuthi ibhodi lingakwazi yini ukusingatha ukushisa lapho izingxenye zengezwa.
I-AOI kanye nokuhlolwa kwe-flying probe kusiza ekutholeni amasekhethi avuliwe noma amajoyinti amabi e-solder. Ukuhlola ukuqhubeka kuhlola ukuthi ngabe zonke izindlela zisebenza ngendlela efanele yini.
Ukuhlaziywa kwe-Microsection kubheka ngaphakathi kwe-pcb ukuhlola izendlalelo.
Ukuhlolwa kokucindezeleka okushisayo kubonisa ukuthi i-pcb ingakwazi yini ukusingatha ukushisa nokubanda.
Ukuhlolwa kwe-Hi-pot kuhlola ukuthi ibhodi lingathatha i-voltage ephezulu ngaphandle kokuphuka.
Ukuhlola i-impedance kuqinisekisa ukuthi amasignali ahlala eqinile, okubalulekile kumadivayisi asheshayo.
Abakhiqizi basebenzisa izilawuli zenqubo futhi balandelele izinkinga ukuze babe ngcono. Balandela imithetho eqinile efana ne-IPC-6012 nezinye izindinganiso. Abaningi basebenzisa i-Six Sigma ukukhulisa isivuno sokuqala sisuka ku-95% siye ku-99%. Umenzi we-pcb omuhle usebenzisa lezi zilawuli ukuze anikeze amabhodi anokwethenjelwa ukuze ahlangane. Lezi zinyathelo qinisekisa ukuthi yonke i-pcb ekukhiqizeni kwe-pcb enkulu ihlangabezana nalokho okudingwa yi-electronics yesimanje.
I-PCB Assembly
The pcb inqubo yokuhlanganisa yenza i-pcb eyinhloko isebenze. Onjiniyela baqala ngokulungisa amafayela omklamo. Bahlola imininingwane ngayinye ngaphambi kokuthi baqhubeke. Okulandelayo, abasebenzi bathola zonke izingxenye kanye ne-pcb engenalutho. I-solder paste ihamba phezu kwamaphedi nge-stencil. Lesi sinyathelo sisiza ukwenza izixhumanisi eziqinile ngesikhathi sokuhlanganisa.
Ukubekwa Kwengxenye
Imishini ibeka izingxenye ku-pcb ngokushesha okukhulu nangokucophelela. Khetha bese ubeka amarobhothi anyakazisa ama-chips amancane nezimbangi. Bawalandela eduze amafayela okuklama. I-pcb ingena kuhhavini lokugeleza kabusha ngokulandelayo. Ukushisa kuncibilikisa i-solder paste futhi kwenza amalunga aqinile. Ezinye izingxenye, njengezixhumi noma ama-capacitor amakhulu, zisebenzisa ubuchwepheshe be- through-hole. Izisebenzi noma imishini ibeka lezi zingxenye endaweni. I-Wave soldering iwabamba aqine ku-pcb.
Inqubo yomhlangano we-pcb kufanele igcine yonke ingxenye endaweni efanele. Ngisho namaphutha amancane angenza idivayisi ihluleke. I-pcb eyinhloko ifana nenhliziyo yedivayisi. Ihlanganisa zonke izingxenye futhi izivumele ukuthi zisebenze ndawonye.
Ukuhlola Nokuhlanza
Ukuhlolwa kwekhwalithi kubaluleke kakhulu ekuhlanganiseni kwe-pcb. Ukuhlola ukunamathisela kwe-solder kusebenzisa amathuluzi e-3D ukukala ubude bephedi nokufakwa. I-Automated Optical Inspection (AOI) ibheka izingxenye ezingekho noma ezingalungile. Ukuhlolwa kwe-X-ray kuhlola ngaphakathi kwe-pcb ngezinkinga ezifihliwe emalungeni e-solder. Lawa mathuluzi angabheka amalunga angama-30-40 umzuzwana ngamunye. Lokhu kunikeza cishe amasheke agcwele emishini ebalulekile.
Ukuhlolwa kwe-in-circuit kuhlola ukuthi umhlangano we-pcb usebenza kahle yini. Idatha evela ku-AOI ne-X-ray isiza onjiniyela babone izinkinga futhi benze inqubo ibe ngcono. I-Statistical Process Control (SPC) isebenzisa le datha ukuze igcine ikhwalithi iphezulu.
Ngemuva kokuhlola, ukuhlanza kususa noma yikuphi ukugeleza okusele noma ukungcola. Lesi sinyathelo sigcina i-pcb iphephile ekugqwaleni futhi isiza ukuthi ihlale isikhathi eside. Ama-PC ahlanzekile asiza amadivayisi asebenze kangcono futhi ahlale isikhathi eside.
Ithiphu: Amathuluzi okuhlola esimanje nezinyathelo zokuhlanza kusiza wonke umhlangano we-pcb uhlangabezane nemithetho eqinile yekhwalithi.
I-pcb eyinhloko itholakala phakathi kwawo wonke amadivaysi. Idizayini yayo ehlakaniphile, izinto ezisetshenziswayo ezinamandla, nobuchwepheshe bosizo lokwakha ngokucophelela busebenza kahle. Onjiniyela basebenzisa izindlela ezintsha zokwenza i-pcb ngayinye ibe nzima futhi ithembeke. Amafoni, izimoto, namathuluzi ezokwelapha konke kudinga leli bhodi ukuze lisebenze.
Ukufunda nge-pcb kubonisa ukuthi ungakanani umsebenzi nokunakekelwa okungena kuwo wonke amagajethi.
Imibuzo Evame Ukubuzwa
Imelelani i-PCB?
I-PCB imele iBhodi Yesifunda Ephrintiwe. Onjiniyela basebenzisa ama-PCB ukuze baxhume futhi basekele izingxenye ze-elekthronikhi. Lawa mabhodi asiza amadivaysi ukuthi asebenze ngokuvumela ugesi ukuthi ugeleze phakathi kwezingxenye.
Kungani izinto zikagesi zidinga i-PCB enkulu?
I-PCB eyinhloko isebenza njengomgogodla wedivayisi. Ibamba zonke izingxenye ezibalulekile endaweni. Iphinde ivumele amasiginali namandla ukuthi ahambe phakathi kwama-chips, izinzwa, nezinye izingxenye.
Zingaki izendlalelo i-PCB engaba nazo?
I-PCB ingaba nesendlalelo esisodwa, ezimbili, noma eziningi. Amadivayisi alula asebenzisa amabhodi anesendlalelo esisodwa. Amagajethi ayinkimbinkimbi, njengamakhompyutha, ngokuvamile asebenzisa ama-PCB anezingqimba ezine noma ngaphezulu.
Yiziphi izinto onjiniyela abazisebenzisayo ukwenza ama-PCB?
Ama-PCB amaningi asebenzisa i-FR-4, into eqinile ye-fiberglass. Amanye amabhodi asebenzisa amapulasitiki akhethekile noma ama-ceramics ukuze akwazi ukumelana nokushisa okungcono. Ungqimba lwethusi lwakha izindlela zikagesi.
Onjiniyela bahlola kanjani ukuthi i-PCB isebenza ngendlela efanele?
Onjiniyela basebenzisa amathuluzi afana nemishini ye-AOI, ama-X-ray, nokuhlolwa kukagesi. Lawa masheke asiza ekutholeni izinkinga ezifana nezindlela eziphukile noma amajoyinti amabi e-solder. Ukuhlola ngokucophelela kuqinisekisa ukuthi i-PCB ngayinye ihlangabezana nezindinganiso zekhwalithi.
