Iingqwalasela zoyilo zeePCBs eziguquguqukayo ezininzi zidlala indima ebalulekileyo ekuqinisekiseni ukuthembeka nokusebenza kwezixhobo zombane. Njengoko itekhnoloji iqhubeka nokuvela, imfuno yeePCB eziguquguqukayo ikhula ngokukhawuleza ngenxa yeenzuzo zabo ezininzi malunga nokunciphisa ubungakanani, ukunciphisa ubunzima, kunye nokunyuka kwezinto ezininzi. Nangona kunjalo, ukuyila i-PCB ye-multilayer ebhetyebhetye kufuna uqwalaselo ngononophelo lwemiba eyahlukeneyo ukuqinisekisa ukusebenza kakuhle.Kwesi sithuba sebhlog, siphonononga eyona ngqwalasela iphambili yoyilo lwee-PCBs eziguquguqukayo ezininzi kwaye sixoxe ngemingeni eyayanyaniswa noyilo kunye nenkqubo yokuvelisa.
Enye yeengqwalasela eziphambili zoyilo lwee-PCB ze-multilayer flex lukhetho lwe-substrate material.IiPCB eziguquguqukayo zixhomekeke kwizinto eziguquguqukayo ze-substrate ezifana ne-polyimide (PI) okanye i-polyester (PET) ukubonelela ukuguquguquka okuyimfuneko kunye nokuqina. Ukukhethwa kwezinto ze-substrate kuxhomekeke kwiimfuno ezithile zesicelo, kubandakanywa ukumelana nokushisa, amandla omatshini, kunye nokuthembeka. Izinto ezahlukeneyo substrate namanqanaba ahlukeneyo uzinzo thermal, uzinzo dimensional, kunye radii bend, kwaye ezi kufuneka zivavanywe ngenyameko ukuqinisekisa ukuba PCB unako ukumelana iimeko zokusebenza iya kujongana.
Olunye uqwalaselo olubalulekileyo luyilo lwe-stackup ye-PCB eninzi eguquguqukayo. Uyilo lwe-stackup lubhekiselele kulungiselelo lweeleya ezininzi zeetrayisi zokuqhuba kunye nemathiriyeli yedielectric ngaphakathi kwePCB.Ukucwangciswa ngononophelo kolungelelwaniso lomaleko, umzila wesiginali, kunye nokubekwa kwamandla/inqwelomoya emhlabeni kubalulekile ukuqinisekisa imfezeko yomqondiso ofanelekileyo, ukuhambelana kwe-electromagnetic (EMC), kunye nolawulo lwe-thermal. Uyilo lwe-stack-up kufuneka lunciphise umqondiso we-crosstalk, i-impedance mismatch, kunye nokuphazamiseka kwe-electromagnetic (EMI) ukuqinisekisa ukusebenza okuthembekileyo nokomelela kwezixhobo zombane.
Ukuhanjiswa komqondiso kunye neenqwelomoya zamandla / ezisemhlabeni zibonakalisa imingeni eyongezelelweyo kwii-PCB eziguquguqukayo ezininzi xa kuthelekiswa neePCB zemveli eziqinileyo.Ukuguquguquka kwe-substrate kuvumela i-wiring ye-trith-dimensional (3D), enokunciphisa kakhulu ubungakanani kunye nobunzima besixhobo sokugqibela sombane. Nangona kunjalo, ikwadala ubunzima ekulawuleni ukulibaziseka kokusasazwa komqondiso, ukukhutshwa kwe-electromagnetic, kunye nokuhanjiswa kwamandla. Abaqulunqi kufuneka bacwangcise ngononophelo iindlela zokuhamba, baqinisekise ukupheliswa komqondiso ofanelekileyo, kunye nokwandisa amandla / ukuhanjiswa kwenqwelomoya ephantsi ukuze kuncitshiswe ingxolo kunye nokuqinisekisa ukuhanjiswa komqondiso ngokuchanekileyo.
Ukubekwa kwecandelo ngomnye umba obalulekileyo we-multilayer flex PCB uyilo.Uyilo lwecandelo kufuneka luthathele ingqalelo izinto ezinje ngezithintelo zendawo, ulawulo lwe-thermal, imfezeko yomqondiso, kunye nenkqubo yokuhlanganisa. Amacandelo abekwe ngobuchule anceda ukunciphisa ubude bendlela yomqondiso, ukunciphisa ukulibaziseka kokuhanjiswa komqondiso, kunye nokwandisa ukuchithwa kwe-thermal. Ubungakanani becandelo, i-orientation kunye neempawu zokushisa kufuneka ziqwalaselwe ukuze kuqinisekiswe ukutshatyalaliswa kokushisa okusebenzayo kunye nokuthintela ukufudumala kwizakhiwo ezixineneyo ze-multilayer.
Ukongeza, imiba yoyilo lweePCBs eziguquguqukayo ezininzi zikwanwenwela kwinkqubo yokuvelisa.Izixhobo ze-substrate eziguquguqukayo, imikhondo ethambileyo yokuhambisa, kunye neepateni zocingo ezintsonkothileyo zifuna ubuchule obukhethekileyo bokwenza. Abaqulunqi kufuneka basebenze ngokusondeleyo nabavelisi ukuqinisekisa ukuba iinkcukacha zoyilo ziyahambelana nenkqubo yokuvelisa. Kufuneka kwakhona baqwalasele imiqobo enokubakho yokuvelisa, efana nobubanzi bomkhondo obuncinane, ubuncinci bobungakanani bomngxuma kunye neemfuno zokunyamezelana, ukuphepha iziphene zoyilo ezinokuchaphazela ukusebenza ngokubanzi kunye nokuthembeka kwePCB.
Iingqwalasela zoyilo ezixoxwe ngasentla ziqaqambisa ukuntsonkotha kokuyila i-PCB yamanqanaba amaninzi.Bagxininisa ukubaluleka kwenkqubo epheleleyo kunye neenkqubo zoyilo lwe-PCB, apho izinto ezifana nokukhethwa kwezinto eziphantsi kwe-substrate, uyilo lwe-stackup, ukulungiswa kwendlela, ukubekwa kwecandelo, kunye nokuhambelana kwenkqubo yokuvelisa zivavanywa ngononophelo. Ngokubandakanya ezi ngqwalasela kwisigaba soyilo, abayili banokwenza ii-PCB eziguquguqukayo ezininzi ezihlangabezana neemfuno ezingqongqo zezixhobo zombane zanamhlanje.
Isishwankathelo, ukuqwalaselwa koyilo lweePCB eziguquguqukayo ezininzi zibalulekile ekuqinisekiseni ukuthembeka, ukusebenza, kunye nokusebenza kwezixhobo zombane. Ukukhethwa kwezinto ze-Substrate, i-stackup design, ukulungiswa kwendlela, ukubekwa kwecandelo, kunye nokuhambelana kwenkqubo yokuvelisa izinto eziphambili ekufuneka zihlolwe ngononophelo ngexesha lesigaba soyilo. Ngokuqwalasela ezi zinto, abaqulunqi banokudala ii-PCBs eziguquguqukayo ezininzi ezibonelela ngeenzuzo zobungakanani obuncitshisiweyo, ubunzima obuncitshisiweyo, kunye nokunyuka kwezinto ezahlukeneyo, ngelixa behlangabezana neemfuno ezingqongqo zezicelo ze-elektroniki zanamhlanje.
Ixesha lokuposa: Sep-02-2023
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