In PCB uyilo loyilo, kukho isethi epheleleyo yeendlela zokuphucula ireyithi yokubeka. Apha, sikubonelela ngeendlela ezisebenzayo zokuphucula ireyithi yokubeka kunye noyilo olusebenzayo loyilo lwePCB, olungagcini nje kuphela umjikelezo wophuhliso lweprojekthi kubathengi, kodwa kwandisa Umda uqinisekisa umgangatho wemveliso eyiliweyo.

1. misela inani leeleya zePCB

Ubungakanani bebhodi yesekethe kunye nenani lee-wire layers kufuneka zinqunywe ekuqaleni koyilo. Ukuba uyilo lufuna ukusetyenziswa kwe-high-density ball grid array (BGA) amacandelo, ubuncinane benani leentambo ezifunekayo kwiintambo ezi zixhobo kufuneka ziqwalaselwe. Inani lee-wire layers kunye ne-stack-up method iya kuchaphazela ngokuthe ngqo i-wiring kunye ne-impedance yemigca eprintiweyo. Ubungakanani bebhodi bunceda ukugqiba indlela yokubeka kunye nobubanzi bomgca oshicilelweyo ukufezekisa umphumo woyilo ofunekayo.

Kangangeminyaka emininzi, abantu bebesoloko bekholelwa ukuba inani elisezantsi leengqimba zebhodi yesekethe, ixabiso eliphantsi, kodwa kukho ezinye izinto ezininzi ezichaphazela iindleko zokwenziwa kwebhodi yesekethe. Kwiminyaka yakutshanje, umahluko weendleko phakathi kweebhodi ezininzi zincitshiswe kakhulu. Ekuqaleni koyilo, kungcono ukusebenzisa iileyile zesekethe ngakumbi kwaye usasaze ngokulinganayo ubhedu, ukwenzela ukuba ugweme ukufumanisa ukuba inani elincinci leempawu azihambelani nemigaqo echaziweyo kunye neemfuno zendawo ekupheleni koyilo, kwaye ngaloo ndlela. banyanzeliswa ukuba bongeze iileya ezintsha. Ukucwangcisa ngononophelo ngaphambi kokuyila kuya kunciphisa iingxaki ezininzi kwi-wiring.

2. imithetho yoyilo kunye nezithintelo

Isixhobo esizenzekelayo sokuhamba ngokwaso asiyazi into emasiyenze. Ukuze ugqibezele umsebenzi wokudibanisa, isixhobo socingo kufuneka sisebenze phantsi kwemithetho echanekileyo kunye nezithintelo. Imigca yemiqondiso eyahlukeneyo ineemfuno ezahlukeneyo zocingo. Yonke imigca yesignali eneemfuno ezizodwa kufuneka ihlelwe, kwaye ulwahlulo loyilo olwahlukileyo luhlukile. Iklasi nganye yesignali kufuneka ibe neyona nto iphambili, iphezulu iphambili, imithetho engqongqo. Imithetho ibandakanya ububanzi bemigca eprintiweyo, inani eliphezulu le-vias, iqondo lokuhambelana, impembelelo ehambelanayo phakathi kwemigca yemiqondiso, kunye nokunciphisa iileya. Le mithetho inempembelelo enkulu ekusebenzeni kwesixhobo socingo. Ukuqwalaselwa ngokucophelela kweemfuno zoyilo kuyinyathelo elibalulekileyo kwi-wiring eyimpumelelo.

3. uyilo lwamacandelo

Ukuze kunyuswe inkqubo yokuhlanganisa, imithetho yoyilo lokwenziwa kwezinto (DFM) iya kunqanda uyilo lwecandelo. Ukuba isebe lendibano livumela amacandelo ukuba ahambe, isiphaluka sinokulungiswa ngokufanelekileyo, esilungele ngakumbi kwi-wiring ngokuzenzekelayo. Imigaqo echaziweyo kunye nemiqobo iya kuchaphazela uyilo loyilo.

Umzila wendlela (ijelo lokuhamba) kunye nendawo kufuneka ithathelwe ingqalelo ngexesha loyilo. Ezi ndlela kunye neendawo zicacile kumyili, kodwa isixhobo sokuhamba ngokuzenzekelayo siya kuqwalasela kuphela umqondiso omnye ngexesha. Ngokuseta imiqobo yendlela kunye nokuseta umaleko womgca wophawu, isixhobo sokuhola sinokwenziwa njengoko umyili ucinge Gqibezela iingcingo ngolo hlobo.

4. Uyilo lwabalandeli

Kwinqanaba loyilo lwe-fan-out, ukwenza izixhobo zokuziqhelanisa ngokuzenzekelayo ukudibanisa izikhonkwane zecandelo, isikhonkwane ngasinye sesixhobo sokunyuka komphezulu kufuneka sibe nesinye nge, ukuze xa kufuneka uqhagamshelo olungaphezulu, ibhodi yesekethe inokufakwa ngaphakathi kuQhagamshelwano, kwi-intanethi. uvavanyo (ICT) kunye nesekethe reprocessing.

Ukuze kwandiswe ukusebenza kakuhle kwesixhobo somzila ozenzekelayo, owona mkhulu ngokusetyenziswa kobukhulu kunye nomgca oshicilelweyo kufuneka usetyenziswe kangangoko, kwaye ikhefu limiselwe ngokufanelekileyo kwi-50mil. Sebenzisa udidi lwendlela eyandisa inani leendlela zendlela. Xa uqhuba uyilo lwe-fan-out, kuyimfuneko ukuqwalasela ingxaki yovavanyo lwesekethe ye-intanethi. Izinto zovavanyo zinokubiza, kwaye ziqhele uku-odolwa xa sele ziza kungena kwimveliso epheleleyo. Ukuba kuphela ngoko qwalasela ukongeza iinodi ukufezekisa uvavanyo lwe-100%, kuya kuba semva kwexesha.

Emva kokuqwalaselwa ngenyameko kunye nokuqikelelwa, uyilo lovavanyo lwesekethe ye-intanethi lunokwenziwa kwinqanaba lokuqala loyilo kwaye luphunyezwe kwinqanaba lokugqibela lenkqubo yokuvelisa. Uhlobo lwe-fan-out lumiselwa ngokwendlela yocingo kunye novavanyo lwesekethe ye-intanethi. Unikezelo lwamandla kunye nokubekwa phantsi kuya kuchaphazela i-wiring kunye ne-fan-out design. . Ukuze kuncitshiswe i-reactance inductive eyenziwe ngumgca woxhulumaniso we-capacitor yokucoca, i-vias kufuneka isondele kangangoko kunokwenzeka kwizikhonkwane zesixhobo sokunyuka kwendawo, kunye ne-wiring manual ingasetyenziswa ukuba kuyimfuneko. Oku kunokuchaphazela indlela ebicingwa ngaphambili, kwaye kusenokude kukubangele ukuba uphinde ucinge ukuba loluphi uhlobo lwendlela onokuthi uyisebenzise, ​​ngoko ke unxulumano phakathi kwe-inductance kunye ne-pin kufuneka iqwalaselwe kwaye umba ophambili ngokubaluleka kufuneka usetwe.