PCB Nekuti inogadzirwa kudhinda zvemagetsi, inonzi "yakadhindwa" redunhu bhodhi.
Pamberi pemaPCB, masekete akagadzirwa new-kune-nguva yekushandisa wiring. Kuvimbika kwenzira iyi kwakaderera kwazvo, nekuti semazera wedunhu, kuputika kwemutsara kuchakonzera mutsara wenziyo kuputsa kana kupfupika. Wire mhepo tekinoroji yakakura kufambidzana mudunhu redunhu, iyo inovandudza kusimba uye kudzoreredza kugona kwemutsara nekumhanyisa waya diki diki yakatenderedza danda pane iyo nzvimbo yekubatanidza.
Sezvo indasitiri yemagetsi yakashanduka kubva kuVaCubum machubhu uye dzinotendeukira kune silicon semiconductuctrusors uye dzinosanganiswa zviteshi, saizi uye mutengo wezvemagetsi zvakarambidzwawo. Zvigadzirwa zvemagetsi zviri kuwedzera kuoneka mune yevatengi chikamu, kukurudzira vagadziri kuti vatsvage madiki uye zvimwe zvinodhura-zvinobudirira mhinduro. Saka, PCB yakazvarwa.
PCB Kugadzira Process
Kugadzirwa kwePCB kwakaomarara, kutora chikamu china chakadhindwa semuenzaniso, kugadzirwa kwayo kwekutenderera, kuongorora, kuchera, kwekunze
1, PCB Rudzi
Nhanho yekutanga muPCB kugadzirwa ndeyekuronga uye kutarisa iyo PCB dhizaini. Iyo PCB yekugadzira fekitori inowana mafaira eCAD kubva kuPCB Dhizaini Kambani, uye sezvo yega yega CAD Software ine yako yakasarudzika Faira, iyo PCB fekitori inovashandura muGreer Rs-274x kana Gerber X2. Ipapo mainjiniya wefekitori anozoongorora kuti PCB inoratidzwa inoenderana neyekugadzira maitiro uye kana paine kuremara uye zvimwe zvinetso.
2, core plate kugadzirwa
Sheneka ndiro yemhangura yakakora, kana paine guruva, zvinogona kutungamira kunzvimbo yekupedzisira dunhu pfupi kana kuputsa.
A 8-layer PCB: Izvo zvakanyatsogadzirwa ne3 yemhangura-coated-coated-coated-core mahwendefa mafirimu maviri emhangura, uye akabva akasungwa nemapepa emasiredhi. Kutevedzana kwekugadzira kunotanga kubva pakati nepakati yepakati plate (4 kana 5 zvikamu zvemitsetse), uye inogara ichimisikidzwa pamwe chete uye yagadziriswa. Iko kugadzirwa kwe4-layer PCB yakafanana, asi chete inoshandisa 1 Core bhodhi uye 2 mbozheni mafirimu.
3, iyo yemukati PCB inotamisa
Kutanga, iyo maviri zvikamu zveiyo yakakosha yepakati Core board (musimboti) inogadzirwa. Mushure mekuchenesa, ndiro yemhangura-copper-clad plate yakafukidzwa nefirimu remapikicha. Iyo firimu inosimbisa kana yakavhurwa nechiedza, ichigadzira firimu rinodzivirira pamusoro pemhangura foil yemhangura-copper ndiro.
Iwo maviri-layer PCB Liyout firimu uye iyo yakapetwa kafoti clad plate inopedzisira yakaiswa mumusoro wePCB yekuvapa
Iyo sensitizer irikundirisa iyo inoerera firimu pane yemhangura foil ine marara eUV. Pasi pefirimu rinojeka, firimu rinonamira rakaporeswa, uye pasi pefirimu reOpaque, kuchine firimu rakaponeswa rakarapa. Iyo mhangura yakavharwa pasi pemapepa akaporeswa firimu ndiyo inodikanwa PCB Layout mutsara, iyo yakaenzana nebasa reLaser printer ink yeChinese PCB.
Ipapo iyo yakasarudzika firimu yemapikicha inocheneswa neLye, uye iyo inodiwa mhangura foil mutsara uchafukidzwa neyepamhepo yakarapwa firimu.
Iyo isingadiwe yemhangura yemhangu inozungunudzwa kubva kune yakasimba alkali, senge naoh.
Bvarura kubva pikicha yemapikicha emafirimu kuti ufumure mashanga emhangura anodikanwa kuti PCB Layout mitsara.
4, CORE PLATE DRILLing uye kuongorora
Iyo yepakati plate yakaitwa zvinobudirira. Wobva wazadza gomba rinoenderana mundiro yepakati kuti ifambise kuenderana nedzimwe zvinhu zvakabiwa zvinotevera
Kana iyo Core bhodhi yakamanikidzwa pamwe chete nezvimwe zviyero zvePCB, haigone kuchinjwa, saka kuongorora kwakakosha. Muchina uchangoenzanisa nePCB Layout dhizaini kutarisa zvikanganiso.
5. Laminate
Pano chitsva chitsva cheki-kurapa-kupora pepa inodiwa
Iyo yepazasi yemhangura foil uye maviri emigedhi ebepa-akaraswa pepa rakarongedzwa negomba rakapetwa.
Iyo PCB mabhodhi anoiswa nemapuranga esimbi anoiswa pabumbi, uye akabva atumirwa kuVaCuum inopisa yekuomerwa. Iyo tembiricha yakakwira yeVaCuum inopisa inodziya yeiyo epoxy resin mune yeSemi-yakarongedzwa pepa, akabata mahwendefa emucheto uye mhangura pasi pasi pekumanikidzwa.
Mushure mekunge kuomesa kwakakwana, bvisa iyo yepamusoro simbi plate ichimanikidza PCB. Ipapo iyo yakamanikidzwa aluminium aluminium inobviswa, uye iyo aluminium ndiro inotorawo basa rekuzvitsaura zvakasiyana PCPs uye nekuona kuti iyo mhangura foil pane PCB yekunze yakatsiga. Panguva ino, mativi ese ePCB akatorwa anozofukidzwa nedanho rezvipenga zvetsika dzegomo rakatsetseka.
6. Kudhiraing
Kuti ubatanidze zvikamu zvina zveisiri-base copter
Iyo X-Ray Drill Muchina inoshandiswa kuwana iyo Instured the Int Core Bhodhi, uye muchina uchangowana uye wobva wawana gomba riri pabhodhi repamusoro, uye punch iyo yekukomba gomba pane iyo PCB yekuve nechokwadi chekuti iyo inotevera dhizaini iri pakati pegomba.
Isa iyo denderedzwa realuminium pepa pane punch muchina uye isa PCB pairi. Kuti uvandudze kugona, 1 kusvika ku3 kufanana PCB mabhodhi anozosvikwirwa pamwe chete kuti uwedzere kuenderana nehuwandu hwePCB marita. Pakupedzisira, denderedzwa remvura aluminium yakafukidzwa pamusoro pePCB, uye yepamusoro uye yepazasi yeAluminium ndiro ndeyekuti kana iyo yekudhara iri kuyerera uye ichichera, iyo mhangura iri paPCB haizobve.
Muchiitiko chapfuura chekupfuura, iyo yakanyungudika epoxy resin yakaiswa kunze kwekunze kwePCB, saka yaida kubviswa. Iyo Nyoka Mbiri muchina inocheka iyo coniphery yePCB maererano neiyo chaiyo XY inoronga.
7. Copper Cemical Comication yemadziro emadziro
Sezvo kanenge zvese PCB zvigadzirwa Shandisa mapepa ekubatanidza zvikamu zvakasiyana zve wiring Uku kurira kwevalevhizheni yemhangura kunofanirwa kuwanikwa neElectroplating, asi girazi remadziro rinoumbwa neisiri-rekuita epoxy resin uye fiberglass bhodhi.
Naizvozvo, danho rekutanga ndere kuunganidza chikamu chezvinhu zvinogadzirisa pamadziro egomba, uye gadzira 1 micron yemari yePCE PCB pamusoro, kusanganisira gomba remadziro, nemakemikari emakemikari. Maitiro ese, akadai semakemikari kurapwa uye kuchenesa, anodzorwa nemuchina.
Yakagadziriswa PCB
Chenesa PCB
Shamba PCB
8, iyo yekunze PCB kuendesa
Tevere, iyo yekunze PCB Dhizaini ichaendeswa kune iyo mhangura foil, uye maitiro akafanana neyepamhepo yemukati yekufambisa iyo PCB dhayeti, musiyano chete ndewekuti firimu rakanaka richashandiswa sebhodhi.
Iyo yemukati PCB Sangano rekutenderera rinotora nzira yekubvisa, uye iyo yakaipa firimu inoshandiswa sebhodhi. Iyo PCB yakafukidzwa neyenzi yemifananidzo yemifananidzo, suka iyo isina kugadziriswa firimu firimu, yakafumurwa foils foil ichitsveneswa, PCB Liyout mutsara wakadzivirirwa neiyo yakasarudzika yemifananidzo yemifananidzo uye kuruboshwe.
Iyo yekunze PCB Sangano rekutungamira rinotumira iyo yakajairika nzira, uye iyo firimu yakanaka inoshandiswa sebhodhi. Iyo PCB yakafukidzwa neiyo yakarapwa Photoingsitive firimu yenzvimbo isiri-mutsara. Mushure mekuchenesa iyo isina kukodzera firimu, electroplating inoitwa. Iko kune iyo firimu, haigone kuve yakasarudzwa, uye pasina firimu, rakarongedzwa nemhangura uye ipapo tini. Mushure mekunge iyo firimu yabviswa, alkaline etching inoitwa, uye pakupedzisira iyo tini yabviswa. Iyo Line Plan inosara mubhodhi nekuti yakachengetedzwa neTini.
Clamp iyo PCB uye Electroplate mhangura iri pairi. Sezvambotaurwa, kuitira kuti uve nechokwadi chekuti gomba rine hutano hwakakwana, iro rwizi rwevhangura rwakagadzirwa pamadziro egomba zvinofanirwa kuve nehurongwa hwema makumi maviri neshanu, saka hurongwa hwese huchadzorwa nekombuta kuti ive nechokwadi chekuti chokwadi chayo.
9, PCB PCB etching
Maitiro ekuita anobva apedzwa neye yakazara otomatiki pombi. Chekutanga pane zvese, iyo yakapupurika photosensitive firimu pane PCB Board inenge yakanatswa. Izvo zvinogezeswa neisimba alkali kuti ubvise iyo isingadiwe yemhangura foil yakafukidzwa nayo. Wobva wabvisa tini inovhara pane PCB Layout mhangura foil nemhedzisiro yekugadzirisa. Mushure mekuchenesa, iyo 4-layer PCB chimiro chakakwana.
