Solder mast chikamu chakakosha chePCB yakadhindwa mabhodhi edunhu, Hapana kupokana kuti Solder mask ichabatsira kuungana, zvisinei chii chimwe chinobatsira solder mask?Isu tichafanirwa kuziva zvakawanda nezve solder mask pachayo.
Chii chinonzi solder mask?
Solder mask kana solder stop mask kana solder resist itete rakaita lacquer-like layer yepolymer rinowanzo iswa kune mhangura yemhangura yedhinda redunhu board (PCB) yekudzivirira kubva kune oxidation uye kudzivirira mabhiriji anotengeswa kubva pakuumbwa pakati pepakati pepadhi inotengeswa. .
Zambuko rekutengesa kubatanidza magetsi kusingatarisirwe pakati pemakondukita maviri nenzira yechidimbu chidiki che solder.
MaPCB anoshandisa solder masks kudzivirira izvi kuti zvisaitike.
Solder mask haigaro shandiswa kune anotengeswa nemaoko maassemblies, asi yakakosha kumabhodhi-anogadzirwa akawanda anotengeswa otomatiki achishandisa reflow kana solder kugeza nzira.
Kana yangoiswa, kuvhurika kunofanirwa kuitwa mune solder mask pese panotengeswa zvikamu, izvo zvinoitwa uchishandisa photolithography.
Smaski echinyakare ane tsika yakasvibira asi ave kuwanikwa mune akawanda mavara.
Iyo nzira ye solder mask
Iyo solder mask process inosanganisira akati wandei matanho.
Mushure mekutanga kucheneswa nhanho, umo akadhindwa edunhu mabhodhi anodzikiswa uye mhangura yemhangura ingave mechanically kana kemikari rough end, solder mask inoshandiswa.
Kune akati wandei maapplication akaita sekuvhara keteni, screen-printing kana spray coating iripo.
Mushure mekunge maPCB akaputirwa nemasolder mask, iyo solvent inoda kuvhenekerwa-kubva padanho rekuomesa.
Nhanho inotevera mukutevedzana ndeyekuratidzwa.Kuti ugadzire solder mask, mifananidzo inoshandiswa.Mapuranga anoratidzwa neyakajairwa 360 nm light source.
Nzvimbo dzakafumurwa dzichaita polymer nepo nzvimbo dzakafukidzwa dzichiramba dziri monomer.
Mukuita kwekusimudzira nzvimbo dzakafumurwa dzinopokana, uye nzvimbo dzisina kuvhurika (monomer) dzichagezwa kunze.
Kurapa kwekupedzisira kunoitwa mubatch kana tunnel oveni.Mushure mekurapa kwekupedzisira, imwe yekuwedzera kurapa kweUV inogona kudiwa kuti uwedzere michina uye makemikari zvimiro zvesolder mask.
Basa guru re solder mask:
Saka chii basa reSolder Mask?
Sarudza maviri pakati pechinyorwa:
1. Kudzivirirwa kubva kune oxidation.
2. Kudzivirirwa kubva pakupisa.
3. Kudzivirirwa kubva netsaona solder bhiriji.
4. Kudzivirirwa kubva pakubuda kwemagetsi.
5. Kudzivirirwa kubva kune hyper discharge yezvino.
6. Kudzivirirwa kubva kuguruva.
Kunze kwemabasa makuru ari pamusoro, kune zvakare mamwe maapplication.Kana paine mimwe mibvunzo nezve solder mask, Ndokumbira ubvunze nyanzvi muPHILIFAST.
Nguva yekutumira: Jun-22-2021