Kwimveliso yombane yanamhlanje, inkqubo yokuvelisa iibhodi zeesekethe zePCB imisela ukusebenza kunye nokuthembeka kwemveliso. Phakathi kwabo, inkqubo yophuhliso ikhonkco ebalulekileyo kwinkqubo yokuvelisa i-PCB, echaphazela ngokuthe ngqo ukuchaneka kunye nokuchaneka kwemizobo yebhodi yesekethe. Ke ngoko, ukuqonda inkqubo yophuhliso kuya kunceda wonke umntu aqonde ngcono amandla onke abenzi bebhodi yesekethe yePCB.
一、 Ushwankathelo lwenkqubo yophuhliso
Inkqubo yophuhliso ibhekiselele kwinkqubo apho i-photoresist ye-photoresist eyomileyo okanye i-photoresist yefilimu emanzi) ifakwe kwi-substrate ibonakaliswe kwaye iindawo ezingabonakaliyo zisuswe ngomphuhlisi weekhemikhali ngexesha lenkqubo yokuvelisa i-PCB. Injongo yale nkqubo kukugcina imimandla ethile ye-photosensitive material, ngaloo ndlela yenza ipateni yesekethe ekulungiseleleni inkqubo yokubhala elandelayo.
二、Amanyathelo kwinkqubo yophuhliso
Kubenzi bebhodi yesekethe yePCB, inkqubo yophuhliso idla ngokubandakanya la manyathelo alandelayo:
I-coating photoresist: Faka umaleko wezinto ezibonisa ukukhanya ngokulinganayo kumphezulu we-substrate ukuqinisekisa ukutyeba okufanayo kokwaleka kokuvezwa okulandelayo.
Ukubonakaliswa: Ipateni yesekethe eyiliweyo iqikelelwa kwi-substrate egqunywe ngezinto ezithatha ifotosensitive ngokusebenzisa izixhobo ezichanekileyo ezibonisa ukuchaneka okuphezulu, okubangela ukusabela kweekhemikhali ukuba kwenzeke kwiindawo ezithile zemathiriyeli yefotosensitive.
Uphuhliso: I-substrate evezwayo intywiliselwa okanye itshizwe kumphuhlisi ukuze isuse imathiriyeli ye-photosensitive engabonakaliyo kwaye iveze umphezulu we-substrate ukwenza ipateni yesekethe.
Ukucoca kunye nokomisa: Emva kokuba uphuhliso lugqityiwe, coca ukususa intsalela yomphuhlisi, kwaye womise ukulungiselela inkqubo yokubhala elandelayo.
三、 Ukubaluleka kwenkqubo yophuhliso
Ukubaluleka kwenkqubo yophuhliso kwimveliso yebhodi yesekethe ye-PCB ibonakala ikakhulu kule miba ilandelayo:
Ukuchaneka kwepateni: Inkqubo yophuhliso ichaphazela ngokuthe ngqo iinkcukacha kunye nokuchaneka kwepateni yesiphaluka. Inkqubo yophuhliso egqwesileyo inokuqinisekisa ukuchaneka kwemigca emihle kunye nezithuba, ngaloo ndlela kuphuculwe ukusebenza ngokubanzi kwebhodi yesekethe.
Ukuphuculwa kwesivuno: Ngokulawula ngokungqongqo ixesha lophuhliso kunye nogxininiso lomphuhlisi, izinga lesiphako lingancitshiswa ngokusebenzayo kwaye izinga lesivuno linyuswe, elibalulekileyo kubavelisi bebhodi yesekethe yePCB.
Ukunyaniseka okuphuculweyo: Uphuhliso oluchanekileyo alugcini nje ukugqiba ukusebenza kwebhodi yesiphaluka, kodwa lunceda ekuphuculeni ukuthembeka okupheleleyo kwemveliso, ngokukodwa iimveliso ze-elektroniki ezisebenza kwiindawo eziphezulu kunye nokushisa okuphezulu.
四, Izinto ezichaphazela umgangatho wenkqubo yophuhliso
Enyanisweni, izinto ezininzi ezichaphazela umgangatho wenkqubo yophuhliso, kuquka:
Ukukhethwa kwezixhobo ze-photosensitive: iintlobo ezahlukeneyo zezixhobo ze-photosensitive zineempawu ezahlukeneyo zophuhliso, abavelisi bebhodi yesekethe yePCB kufuneka bakhethe izinto ezifanelekileyo ngokweemfuno zemveliso.
Ukuchaneka kwezixhobo zokuvezwa: izixhobo eziphezulu zokuchaneka ziyimfuneko ebalulekileyo yokuqinisekisa umphumo wophuhliso, kwaye ukuguga okanye ukulinganisa okungafanelekanga kwezixhobo kuya kuchaphazela ngokuthe ngqo umgangatho wophuhliso.
Iimeko zophuhliso: ugxininiso, ubushushu kunye nexesha lophuhliso lomphuhlisi liya kuchaphazela umphumo wophuhliso, kwaye umenzi kufuneka ahlengahlengise ngokweyona meko.
Inkqubo yophuhliso yenye yeenkqubo eziphambili zabenzi bebhodi yesekethe ye-PCB, kwaye umgangatho wayo uhambelana ngqo nokusebenza kweemveliso kunye nokhuphiswano lwemarike. Ngokuqalisa ukusungula izinto ezintsha zobuchwepheshe kunye nokuphuculwa kwenkqubo, abavelisi bePCB baya kuqhubeka besenza iziphumo ezilungileyo kushishino lokwenziwa kombane ukuhlangabezana neemfuno eziguqukayo zemarike.