Tsarin rage PCB

A tarihi, hanyar ragewa, ko tsarin etching, an samo asali ne daga baya, amma a yau an fi amfani da ita.Dole ne maƙallan ya ƙunshi Layer na ƙarfe, kuma lokacin da aka cire sassan da ba'a so duk abin da ya rage shine tsarin jagora.Ta hanyar bugu ko ɗaukar hoto duk jan ƙarfe da aka fallasa ana zaɓan mai rufi tare da abin rufe fuska ko mai hana lalata don kare tsarin da ake so daga lalacewa, sannan ana sanya waɗannan laminates masu rufi ko zanen jan ƙarfe a cikin kayan aikin etching waɗanda ke sprite masu zafi etching a saman farantin.Wakilin etching da sinadarai yana canza jan ƙarfe da aka fallasa zuwa wani fili mai narkewa har sai an narkar da duk wuraren da aka fallasa kuma babu sauran jan ƙarfe.Ana amfani da na'urar cire fim don cire fim ɗin ta hanyar sinadarai, cire abin hana lalata kuma a bar tsarin jan ƙarfe kawai.Sashin giciye na madubin jan ƙarfe yana ɗan ɗanɗano trapezoidal, saboda duk da cewa an haɓaka ƙimar etching a tsaye a cikin ingantaccen ƙirar etching na feshi, har yanzu etching yana faruwa duka ƙasa da gefe.Sakamakon jan karfe yana da karkatar bangon gefe wanda bai dace ba, amma ana iya amfani dashi.Hakanan akwai wasu hanyoyin ƙirƙira hoto mai hoto waɗanda zasu iya samar da bangon gefe a tsaye.

Hanyar ragewa ita ce zaɓin cire wani ɓangare na foil ɗin tagulla akan saman laminate ɗin da aka sanye da tagulla don samun tsarin gudanarwa.Ragewa ita ce babbar hanyar kera da'ira bugu a zamanin yau.Babban fa'idodinsa shine balagagge, barga da ingantaccen tsari.

Hanyar ragi an raba shi zuwa kashi huɗu masu zuwa:

Buga allo: (1) ana yin zane-zanen da'ira mai kyau na gaba zuwa abin rufe fuska na siliki, allon siliki baya buƙatar da'irar a wani bangare za a rufe shi da kakin zuma ko kayan hana ruwa, sannan a sanya abin rufe fuska na siliki a cikin PCB na sama, akan. allon ba za a etched a kan besmear sake protectant, sa kewaye allon a cikin etching ruwa, ba wani ɓangare na m murfin zai zama lalata, a karshe wakili mai kariya.

(2) Samar da bugu na gani: kyakkyawan zane mai da'ira na gaba akan mashin fim mai haske (mafi sauƙaƙan hanya shine yin amfani da faifan bugu na firinta), don zama wani ɓangare na bugu na launi, sa'an nan kuma mai rufi da launi mai haske akan komai. PCB, za ta shirya fim mai kyau a kan farantin karfe a cikin na'ura mai ɗaukar hoto, cire fim ɗin bayan allon da'irar tare da mai haɓaka nunin hoto, a ƙarshe yana ɗaukar nau'in etch.

(3) Samar da sassaƙa: ana iya cire sassan da ba a buƙata akan layin da ba kowa ba ta hanyar amfani da gadon mashi ko na'urar zanen Laser.

(4) Bugawar zafi: Ana buga zane-zanen kewayawa akan takarda canja wurin zafi ta firinta na Laser.Ana canja wurin zane-zane na takarda canja wuri zuwa farantin karfen tagulla ta hanyar buguwar canja wuri mai zafi, sa'an nan kuma an cire kewaye.