A cikin tsarin samar da PCB, tsarin jiyya na saman abu ne mai mahimmanci mataki. Ba wai kawai yana rinjayar bayyanar PCB ba, har ma yana da alaƙa kai tsaye zuwa ayyuka, aminci da dorewa na PCB. Tsarin jiyya na saman zai iya ba da kariya mai kariya don hana lalata tagulla, haɓaka aikin siyarwa, da samar da kyawawan kaddarorin wutar lantarki. Abubuwan da ke biyowa wani bincike ne na matakan jiyya da yawa na gama gari a cikin samarwa na PCB.
一.HASL (Hot Air Smoothing)
Planarization Hot Air Planarization (HASL) fasaha ce ta PCB ta gargajiya ta jiyya wacce ke aiki ta tsoma PCB cikin narkakken kwano/ gubar gami sannan ta amfani da iska mai zafi don “tsara” saman don ƙirƙirar rufin ƙarfe na ƙarfe. Tsarin HASL yana da arha kuma ya dace da masana'antar PCB iri-iri, amma yana iya samun matsala tare da faci marasa daidaituwa da kauri mai kauri mara daidaituwa.
ENIG (sinadarin nickel zinariya)
Electroless nickel zinariya (ENIG) wani tsari ne da ke ajiye wani Layer na nickel da zinariya a saman PCB. Da farko, ana tsaftace saman tagulla kuma ana kunna shi, sannan a ajiye wani ɗan ƙaramin nickel na bakin ciki ta hanyar maye gurbin sinadarai, sannan a ƙarshe an lulluɓe zinari a saman Layer na nickel. Tsarin ENIG yana ba da juriya mai kyau da juriya da juriya kuma ya dace da aikace-aikacen da manyan buƙatun aminci, amma farashin yana da inganci.
三, zinare sinadarai
Sinadarin Zinariya yana ajiye wani siriri na zinari kai tsaye a saman PCB. Ana amfani da wannan tsari sau da yawa a aikace-aikacen da ba sa buƙatar siyarwa, kamar mitar rediyo (RF) da da'irori na microwave, saboda zinare yana ba da kyakkyawan aiki da juriya na lalata. Zinare na sinadari ƙasa da ENIG, amma baya da juriya kamar ENIG.
四, OSP (fim ɗin kariya na kwayoyin halitta)
Fim ɗin kariyar halitta (OSP) wani tsari ne wanda ke samar da fim ɗin siraɗin halitta akan saman jan ƙarfe don hana jan ƙarfe daga iskar oxygen. OSP yana da tsari mai sauƙi da ƙarancin farashi, amma kariyar da take bayarwa ba ta da ƙarfi kuma ta dace da ajiyar ɗan gajeren lokaci da amfani da PCBs.
五, Zinariya mai ƙarfi
Hard Gold wani tsari ne wanda ke ajiye kauri mai kauri a saman PCB ta hanyar lantarki. Zinare mai wuya ya fi juriyar lalacewa fiye da zinaren sinadarai kuma ya dace da masu haɗin haɗin da ke buƙatar yawan toshewa da cirewa ko PCBs da aka yi amfani da su a cikin yanayi mara kyau. Zinare mai wuya ya fi zinare sinadarai amma yana ba da kariya ta dogon lokaci.
六, Azurfa nutsewa
Immersion Azurfa wani tsari ne na ajiye wani Layer na azurfa a saman PCB. Azurfa yana da kyakkyawan aiki da tunani, yana sa ya dace da aikace-aikacen bayyane da infrared. Farashin tsarin azurfar nutsewa yana da matsakaici, amma Layer na azurfa yana da sauƙin vulcanized kuma yana buƙatar ƙarin matakan kariya.
七, Immersion Tin
Immersion Tin wani tsari ne na ajiye tin Layer a saman PCB. Tin Layer yana ba da kyawawan kaddarorin siyarwa da wasu juriya na lalata. Tsarin tin na nutsewa yana da arha, amma tin Layer yana da sauƙi oxidized kuma yawanci yana buƙatar ƙarin Layer na kariya.
八, HASL Kyautar Gubar
HASL-Free Guba tsari ne na HASL mai dacewa da RoHS wanda ke amfani da gwangwani/azurfa/garin jan ƙarfe mara gubar don maye gurbin gwal ɗin dalma na gargajiya. Tsarin HASL mara jagoranci yana ba da irin wannan aiki ga HASL na gargajiya amma ya dace da buƙatun muhalli.
Akwai matakai daban-daban na jiyya na sama a cikin samar da PCB, kuma kowane tsari yana da fa'idodi na musamman da yanayin aikace-aikacen. Zaɓin tsarin jiyya na saman da ya dace yana buƙatar la'akari da yanayin aikace-aikacen, buƙatun aiki, kasafin kuɗi da ƙimar kariyar muhalli na PCB. Tare da haɓaka fasahar lantarki, sabbin hanyoyin jiyya na saman suna ci gaba da fitowa, suna samar da masana'antun PCB tare da ƙarin zaɓi don biyan buƙatun kasuwa.