A cikin duniyar da'irar da'ira (PCBs), zaɓin ƙarewar saman yana da mahimmanci ga ɗaukacin aiki da tsawon rayuwar na'urorin lantarki. Jiyya na saman yana ba da kariya mai kariya don hana iskar shaka, inganta solderability, da haɓaka amincin lantarki na PCB. Wani mashahurin nau'in PCB shine PCB mai kauri mai kauri, wanda aka sani da ikon iya ɗaukar manyan lodi na yanzu da samar da ingantaccen sarrafa zafi. Duk da haka,Tambayar da sau da yawa ke tasowa ita ce: Shin za a iya kera PCBs na jan karfe mai kauri tare da ƙare daban-daban? A cikin wannan labarin, za mu bincika daban-daban saman gama zažužžukan samuwa ga lokacin farin ciki PCBs na jan karfe da kuma la'akari da hannu a zabar dace gama.
1.Koyi game da PCBs masu nauyi na Copper
Kafin zurfafa cikin zaɓuɓɓukan ƙare saman, ya zama dole a fahimci menene PCB mai kauri da kuma takamaiman halaye. Gabaɗaya, PCBs masu kaurin jan ƙarfe sama da oza 3 (105 µm) ana ɗaukar PCBs masu kauri. An ƙera waɗannan allunan don ɗaukar igiyoyi masu ƙarfi da kuma watsar da zafi yadda ya kamata, wanda ya sa su dace da na'urorin lantarki, motoci, aikace-aikacen sararin samaniya da sauran na'urori tare da manyan buƙatun wutar lantarki. PCBs masu kauri na jan ƙarfe suna ba da kyakkyawan yanayin zafi, ƙarfin injina mafi girma da ƙarancin ƙarfin lantarki fiye da daidaitattun PCBs.
2.Muhimmancin jiyya na sama a cikin Manufacturing Copper Copper:
Shirye-shiryen saman yana taka muhimmiyar rawa wajen kare alamun jan karfe da pads daga iskar oxygen da kuma tabbatar da amintattun gidajen abinci. Suna aiki a matsayin shamaki tsakanin fallasa jan karfe da abubuwan da ke waje, suna hana lalata da kiyaye solderability. Bugu da ƙari, ƙarewar saman yana taimakawa samar da shimfidar wuri don jeri sassa da hanyoyin haɗin waya. Zaɓin madaidaicin saman gama don PCBs mai kauri na jan ƙarfe yana da mahimmanci don haɓaka aikinsu da amincin su.
Zaɓuɓɓukan jiyya na 3.Surface don PCB mai nauyi na Copper:
Matakan siyar da iska mai zafi (HASL):
HASL yana ɗaya daga cikin zaɓuɓɓukan jiyya na saman PCB na gargajiya da tsada. A cikin wannan tsari, ana nutsar da PCB a cikin wanka na narkakkar solder kuma ana cire abin da ya wuce gona da iri ta hanyar amfani da wukar iska mai zafi. Ragowar solder ya samar da wani kauri mai kauri akan saman jan karfe, yana kare shi daga lalacewa. Kodayake HASL hanya ce ta jiyya ta saman da ake amfani da ita, ba shine mafi kyawun zaɓi don PCBs mai kauri ba saboda dalilai daban-daban. Babban yanayin zafi mai aiki da ke cikin wannan tsari na iya haifar da damuwa mai zafi akan yaduddukan jan ƙarfe mai kauri, haifar da warping ko delamination.
Lantarki mara amfani da nickel immersion zinariya plating (ENIG):
ENIG sanannen zaɓi ne don jiyya a saman kuma an san shi da kyakkyawan walƙiya da juriya na lalata. Ya haɗa da ajiye wani ɗan ƙaramin nickel maras amfani da shi sannan a ajiye ruwan zinari na nutsewa akan saman tagulla. ENIG yana da lebur mai santsi, mai santsi, wanda ya sa ya dace da abubuwan da aka gyara masu kyau da haɗin waya na gwal. Yayin da za a iya amfani da ENIG akan PCBs na jan karfe mai kauri, yana da mahimmanci a yi la'akari da kauri na layin gwal don tabbatar da isasshen kariya daga manyan igiyoyin ruwa da tasirin zafi.
Lantarki mara amfani da nickel Plating Electroless Palladium immersion Gold (ENEPIG):
ENEPIG wani ci-gaba ne saman jiyya cewa samar da kyau kwarai solderability, lalata juriya da waya bondability. Ya haɗa da ajiye wani Layer na nickel mara amfani, sannan Layer na palladium mara amfani, sannan kuma a ƙarshe wani nau'in zinari na nutsewa. ENEPIG yana ba da kyakkyawan juriya kuma ana iya amfani dashi akan PCBs mai kauri. Yana ba da ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙyalli, yana sa ya dace da aikace-aikacen ƙarfi mai ƙarfi da abubuwan haɓaka mai kyau.
Tin Immersion (ISn):
Tin nutsewa shine madadin magani na saman saman don PCBs mai kauri. Yana nutsar da PCB a cikin wani bayani na tushen tin, yana samar da sirin gwangwani a saman jan karfe. Tin na nutsewa yana ba da ingantaccen solderability, fili mai lebur, kuma yana da alaƙa da muhalli. Koyaya, la'akari ɗaya yayin amfani da tin na nutsewa akan PCBs mai kauri na jan ƙarfe shine cewa ya kamata a sarrafa kauri na tin ɗin a hankali don tabbatar da isasshen kariya daga iskar oxygen da kwararar ruwa.
Abubuwan da ake kiyayewa (OSP):
OSP jiyya ce ta saman da ke haifar da suturar halitta mai karewa akan filayen jan karfe da aka fallasa. Yana da kyau solderability kuma yana da tasiri mai tsada. OSP ya dace da ƙananan aikace-aikacen wutar lantarki zuwa matsakaici kuma ana iya amfani dashi akan PCBs masu kauri na tagulla muddin aka cika ƙarfin ɗaukar nauyi da buƙatun watsar da zafi. Ɗaya daga cikin abubuwan da za a yi la'akari da lokacin amfani da OSP akan PCBs na jan karfe mai kauri shine ƙarin kauri na murfin kwayoyin halitta, wanda zai iya rinjayar aikin wutar lantarki da yanayin zafi gaba ɗaya.
4.Abubuwan da za a yi la'akari da lokacin da zabar ƙarewar ƙasa don PCBs Copper Copper: Lokacin zabar ƙarewar ƙasa don nauyi
Copper PCB, akwai abubuwa da yawa don la'akari:
Ƙarfin ɗauka na Yanzu:
Ana amfani da PCBs masu kauri da farko a cikin manyan aikace-aikacen wutar lantarki, don haka yana da mahimmanci a zaɓi ƙarshen saman da zai iya ɗaukar manyan lodi na yanzu ba tare da juriya ko zafi ba. Zaɓuɓɓuka kamar ENIG, ENEPIG, da tin immersion gabaɗaya sun dace da manyan aikace-aikacen yanzu.
Gudanar da thermal:
An san PCB mai kauri na jan ƙarfe don kyakkyawan yanayin yanayin zafi da iyawar zafi. Ƙarshen saman bai kamata ya hana canja wurin zafi ba ko haifar da matsanancin zafi a kan Layer na jan karfe. Jiyya na sama kamar ENIG da ENEPIG suna da yadudduka na bakin ciki waɗanda galibi ke amfana da sarrafa zafi.
Ikon siyarwa:
Ƙarshen saman ya kamata ya samar da ingantaccen solderability don tabbatar da abin dogara ga haɗin gwiwa da aikin da ya dace na bangaren. Zaɓuɓɓuka irin su ENIG, ENEPIG da HASL suna ba da ingantaccen siyarwa.
Daidaituwar sashi:
Yi la'akari da dacewa da ƙarshen da aka zaɓa tare da takamaiman abubuwan da za a ɗora akan PCB. Kyawawan abubuwan da suka shafi filaye da haɗin waya na gwal na iya buƙatar jiyya na saman ƙasa kamar ENIG ko ENEPIG.
Farashin:
Farashin koyaushe shine muhimmin abin la'akari a masana'antar PCB. Farashin jiyya daban-daban na saman ya bambanta saboda dalilai kamar farashin kayan, ƙayyadaddun tsari da kayan aikin da ake buƙata. Yi la'akari da tasirin farashin da aka zaɓa na ƙarewar saman da aka zaɓa ba tare da lalata aiki da aminci ba.
PCBs masu kauri na jan ƙarfe suna ba da fa'idodi na musamman don aikace-aikacen ƙarfi mai ƙarfi, kuma zaɓar ƙarshen saman da ya dace yana da mahimmanci don haɓaka aikinsu da amincin su.Yayin da zaɓuɓɓukan gargajiya irin su HASL bazai dace ba saboda matsalolin zafi, ana iya la'akari da jiyya na sama kamar ENIG, ENEPIG, tin immersion da OSP dangane da takamaiman buƙatu. Abubuwa kamar iyawa na yanzu, sarrafa zafi, solderability, daidaiton sassa da farashi yakamata a kimanta su a hankali lokacin zabar gamawa don PCBs na jan karfe mai kauri. Ta hanyar yin zaɓaɓɓu masu wayo, masana'antun za su iya tabbatar da ingantaccen masana'anta da ayyuka na dogon lokaci na PCBs masu kauri a cikin aikace-aikacen lantarki da lantarki iri-iri.
Lokacin aikawa: Satumba-13-2023
Baya
