PCB solder mask inki zvinoenderana nekurapa nzira, solder mask inki ine photosensitive kugadzira ingi, kune kupisa-kupora thermosetting ingi, Kune zvakare UV mwenje-yakapora UV ingi. , uye PCB yakaoma bhodhi solder mask inki, FPC yakapfava bhodhi solder mask Ink, uye aluminium substrate solder mask inki, aluminium substrate inki inogonawo kushandiswa pamapuranga e ceramic.
Vias anowanzo kupatsanurwa muzvikamu zvitatu: bofu vias, kuvigwa vias, uye kuburikidza nemakomba. "Blind vias" dziri pamusoro uye pasi pepamusoro pemapuranga edunhu akadhindwa. Iine humwe hudzamu uye inoshandiswa kubatanidza nzvimbo yepamusoro uye yemukati wemukati. , Circuit "Kuburikidza negomba" inopfuura nepakati pedare rose redunhu. , kubva kumusoro kusvika kune yemukati uye ipapo kusvika pasi.
Vias muPCB solder mask processing, Zvakajairwa kuburikidza nematanho anosanganisira: kuburikidza nemafuta ekuvhara, kuburikidza neoiri yeplug, kuburikidza nekuvhura hwindo, Resin plugging, electroplating kuzadza, nezvimwewo, imwe neimwe yeayo maitiro ane maitiro ayo, imwe neimwe ine basa rayo uye inoenderana application mamiriro.
Zvishanu kuburikidza nekugadzirisa nzira uye mamiriro ekushandisa
1. Kuburikidza nemafuta ekuvhara
Via yekuvhara mafuta inoreva maitiro ekuvhara iyo via padhi neingi, pasina tini padhi. Mazhinji mabhodhi edunhu anoshandisa nzira iyi. Iyo yakagadzirirwa aperture haikurudzirwe kuve yakakura kupfuura 0.5mm. Kana iyo aperture yakakura kwazvo, iyo inki ichaungana mugomba, izvo zvinogona kukonzera matambudziko emhando. Paunenge uchishandura iyo dhizaini faira kuita Gerber photolithography faira, iyo kuburikidza nekuvhura inoda kukanzurwa, zvikasadaro iyo via inovhurwa pachinzvimbo chekufukidzwa nependi. .
2. Via window
Via hwindo zvinoreva kuti iyo via pad haina kufukidzwa nemafuta uye mhangura inoburitswa. Mushure mekurapa pamusoro, kunyudzwa kwegoridhe kana kumwaya emarata. Basa rekushandisa kuburikidza nekuvhura nderokuti kana chikamu chatengeswa, kupfapfaidza tini pamadziro emukati megomba kuchawedzera ikozvino conduction yegomba. Zvakafanana, hapana chikonzero chekukanzura kuburikidza nekuvhura kana uchishandura iyo Gerber faira.
3. Oil plugging of vias
Via plugging oil inoreva kubaya madziro negomba neingi Panguva yekugadzira, shandisa aluminium sheet kuzadza solder mask inki muburi. ,Zvekare Chinangwa cheiyo kuburikidza nekuisa plugging mafuta ndechekudzivirira tin kuti isapinde mukati mechikamu kubva paburi panguva yekunyungudika kwemafungu uye ichikonzera pfupi pfupi. Paunenge uchishandura iyo dhizaini faira kuGerber, iyo kuburikidza nekuvhura inofanirawo kubviswa.
4. Resin plugging
Resin plug hole zvinoreva kuti madziro epaburi anozadzwa neresin, uye ipapo padhi inoputirwa sandara. Inokodzera chero mhando ye via nehwindo kune rumwe rutivi. Chinangwa chekuvharisa maburi maburi ndere, kubva pakuona kwemaitiro, semuenzaniso, mapofu akavigwa maburi anodhindwa asati adzvanya. Kana gomba risina kuvharwa neresin, iyo yakatsikirirwa PP glue inoyerera ichipinda mugomba. , zvichikonzera kushomeka kweglue uye kuputika kwebhodhi. Zvinonzi pane vias drilled pamusoro Pedhi Kana gomba risina kuzadzwa resin uye electroplating , duku welding nzvimbo ichaita kuti murombo welding.
5. Copper paste kuzadza
Copper paste filling zvinoreva kuzadza iyo via hole madziro necopper paste wobva wapfuudza pad. Inokodzera chero mhando ye via nehwindo kune rumwe rutivi. Chinangwa chemhangura paste plugging ndeyekushandisa kune yakawandisa-yakakura ikozvino ye kuburikidza nedhisiki. Mutengo wemhangura paste plugging wakakwira zvakanyanya kupfuura iwo wekuisa resin plugging. Kana iyo kuburikidza nekuvhura yakadzimwa mufaira rekugadzira, iyo kuburikidza nekuvhura inogona kukanzurwa.
Solder mask faira dhizaini ye vias
1. Altium kuburikidza nemafuta ekuvhara uye kuvhura hwindo
Kugadzika kuburikidza nekuvhura kana kuvhara mafuta muAltium software Sezvinoratidzwa mumufananidzo: Museve mucherechedzo ndiyo chivharo chemafuta , uncheck Vhura hwindo. Kuseta imwe chete kuburikidza, tinya kaviri via uye tarisa sarudzo mbiri sezvakaratidzwa pamufananidzo. Bvisa chivharo chemafuta pasina kuvhura hwindo, Unogona kushandisa Tsvaga Zvakafanana kuti usarudze ese vias. Wobva waita F11 Unogona kuvhura iyo PCB inspector Wobva watarisa bhokisi sezvakaratidzwa pamufananidzo.
2. PADS kuburikidza nemafuta ekuvhara uye kuvhura hwindo
Seta nekuvhura kana capping muPADS software, sezvakaratidzwa mumufananidzo: Dzvanya iyo solder mask faira paunenge uchishandura Gerber faira, bhomba Dzvanya "Layer" pahwindo uye tarisa nzira yekuvhura hwindo. , kana ukasaboora buri zvinoreva kuti uri kuvhara mafuta.
3. Allegro kuburikidza nemafuta ekuvhara uye kuvhura hwindo
Seta nekuvhura kana kufukidzira mafuta mukati Allegro software , sezvinoratidzwa mumufananidzo: Shandura kuGerber File, wedzera VIA CLASS kune solder mask layer, svinura via hwindo, wedzera TOP kusvika kumusoro uye BOTTOM kusvika pasi. Iyo faira ine gomba kuvhurwa, pasina kuwedzera VIA CLASS, mafuta akafukidzwa.
Mukupedzisa, zvakakodzera kuburikidza nekugadzirisa uye solder mask faira dhizaini inoita basa rakakosha mukuona PCB mashandiro, mhando, uye kuvimbika. Kusarudza yakakodzera kuburikidza nekugadzirisa nzira-kungave kuburikidza nemafuta ekuvhara, nepahwindo, plugging yeoiri, resin plugging, kana copper paste kuzadza-zvinoenderana nechaiyo application uye zvinodiwa zvePCB. Pamusoro pezvo, kumisa nemazvo iyo solder mask faira mudhizaini software seAltium, PADS, kana Allegro kwakakosha kudzivirira nyaya dzekugadzira uye kuwana mashandiro akakwana. Nekunzwisisa uye kushandisa matekiniki aya, vagadziri vePCB nevagadziri vanogona kuve nechokwadi chakasimba uye chakavimbika chedunhu bhodhi kugadzirwa.
