Mafi fasaha shine ɗayan mafi kyawun masana'antun pcb da masu samar da allon da'ira a China
Harshe
Mafi fasaha shine ɗayan mafi kyawun masana'antun pcb da masu samar da allon da'ira a China
"PCB Sided Single", ko za ku iya sanya masa suna a matsayin Single Layer PCB, ko 1L PCB. Akwai's ba kawai alamar jan ƙarfe ɗaya kawai akan allon ba, abubuwan SMD a gefe ɗaya (ta hanyar abubuwan ramuka a wancan gefen), amma kuma babu PTH (wanda aka ɗora ta cikin rami) ko Ta hanyar, kawai yana da NPTH (babu mai ramin rami), ko wuri. rami.
Ita ce mafi arha nau'in allo, kuma ana amfani da ita a cikin allo mai sauƙi. Domin samun farashi mai rahusa, wani lokaci mutane za su yi amfani da CEM-1, CEM-3 maimakon FR4, don yin allon kewayawa. Wani lokaci, masana'anta za su cire alamar tagulla guda ɗaya daga 2L CCL (lamin jan ƙarfe) idan babu 1L FR4 raw kayan.
Akwai's wani al'ada allon"2L PCB" wanda ke da alamar tagulla guda 2, sannan kuma mai suna"PCB mai gefe biyu" (D/S PCB), da PTH (Via) dole ne, amma har yanzu bai yi ba't yana da Buried ko makaho rami. Za a iya haɗa abubuwan da aka haɗa a duka sama da gefen ƙasa, don haka ba ku yi ba't bukatar damu game da inda za a saka abubuwan da aka gyara a kan allo, kuma ba buƙatar amfani da kayan haɗin rami wanda koyaushe tsada fiye da SMD ɗaya.
A halin yanzu wannan shine ɗayan shahararrun nau'in PCB a Duniya, kuma zamu iya samar musu da sabis na gaggawa na sa'o'i 24. Danna nan don ganin lokacin jagora na nau'ikan allunan kewayawa guda biyu.
Tsarin Gefe Daya (1L) PCB
Anan shine babban Layer na gefe guda (S/S) FR4 PCB (daga sama zuwa kasa):
Babban siliki/Legend: don gano sunan kowane PAD, lambar sashin allo, bayanai, da sauransu;
Saman ƙarewa: don kare jan karfe fallasa daga hadawan;
Babban Soldermask (overlay): don kare jan karfe daga iskar shaka, don kada a siyar da shi yayin aiwatar da SMT;
Top Trace: Tagulla kwatankwacin tsari don aiwatar da ayyuka daban-daban
Substrate/Core material: Mara amfani kamar FR4, FR3, CEM-1, CEM-3.
Tsarin Sided Biyu (2L) PCB
Babban siliki/Legend: don gano sunan kowane PAD, lambar sashin allo, bayanai, da sauransu;
Saman ƙarewa: don kare jan karfe fallasa daga hadawan;
Babban Soldermask (overlay): don kare jan karfe daga iskar shaka, don kada a siyar da shi yayin aiwatar da SMT;
Top Trace: Tagulla kwatankwacin tsari don aiwatar da ayyuka daban-daban
Substrate/Core material: Mara amfani kamar FR4, FR5
Alamar ƙasa (idan akwai): (daidai kamar yadda aka ambata a sama)
Bottom soldermask (overlay): (daidai kamar yadda aka ambata a sama)
Ƙarshen ƙasa: (daidai kamar yadda aka ambata a sama)
Silkscreen / labari: (daidai kamar yadda aka ambata a sama)
Mafi kyawun kayan fasaha da aka buga a hukumar da'ira, wanda aka kafa a ranar 28 ga Yuni, 2006, kamfani ne mai rijista na Hong Kong.
