Solder mast ndi gawo lofunika kwambiri la matabwa osindikizira a PCB, Palibe kukayika kuti chigoba cha Solder chingathandize kusonkhana, komabe kodi chigoba cha solder chimathandizira chiyani?Tiyenera kudziwa zambiri za solder mask palokha.
Chigoba cha solder ndi chiyani?
Chigoba cha solder kapena solder stop mask kapena solder resist ndi nsalu yopyapyala ngati lacquer ya polima yomwe nthawi zambiri imagwiritsidwa ntchito pazitsulo zamkuwa za bolodi losindikizidwa (PCB) pofuna kuteteza ku okosijeni komanso kuteteza milatho yogulitsa kuti isapangidwe pakati pa mapepala ozungulira otalikirana. .
Mlatho wa solder ndi njira yolumikizira magetsi yosakonzekera pakati pa makondakita awiri pogwiritsa ntchito kachidutswa kakang'ono ka solder.
Ma PCB amagwiritsa ntchito masks a solder kuti izi zisachitike.
Chigoba cha solder sichimagwiritsidwa ntchito nthawi zonse pamisonkhano yogulitsira pamanja, koma ndizofunikira pamabodi opangidwa ndi misa omwe amagulitsidwa okha pogwiritsa ntchito njira zosambitsiranso kapena zosambira.
Akagwiritsidwa ntchito, zotseguka ziyenera kupangidwa mu solder mask kulikonse kumene zigawo zimagulitsidwa, zomwe zimakwaniritsidwa pogwiritsa ntchito photolithography.
Schigoba chakale ndi chobiriwira mwamwambo koma tsopano chikupezeka mumitundu yambiri.
Njira ya solder mask
Njira ya solder mask imaphatikizapo masitepe angapo.
Pambuyo pa sitepe yoyeretsedwa, yomwe matabwa osindikizira amachotsedwa ndipo mkuwa wa mkuwa umakhala wouma mwamakina kapena wamankhwala, chigoba cha solder chimagwiritsidwa ntchito.
Pali ntchito zingapo monga zokutira zotchinga, zosindikizira pazenera kapena zokutira zopopera zilipo.
Ma PCB atakutidwa ndi chigoba cha solder, chosungunuliracho chimayenera kuwalitsidwa pagawo lowumitsa.
Chotsatira chotsatira ndikuwonetseredwa.Pofuna kupanga chigoba cha solder, zojambulajambula zimagwiritsidwa ntchito.Mapulani amawonekera ndi gwero lowala la 360 nm.
Madera ovumbulutsidwa adzakhala polymerize pamene malo ophimbidwa adzakhala monomer.
Pakutukuka madera owonekera amakhala osamva, ndipo madera osawonekera (monomer) adzatsukidwa.
Kuchiritsa komaliza kumachitidwa mu batch kapena uvuni wa tunnel.Pambuyo pochiritsa komaliza, mankhwala owonjezera a UV angafunikire kuti awonjezere makina ndi mankhwala a chigoba cha solder.
Ntchito yayikulu ya solder mask:
Ndiye ntchito ya Solder Mask ndi chiyani?
Sankhani ziwiri pakati pa mndandanda:
1. Chitetezo ku okosijeni.
2. Chitetezo ku kutentha.
3. Chitetezo ku mlatho wogulitsira mwangozi.
4. Kutetezedwa ku electrostatic discharge.
5. Chitetezo ku hyper discharge ya panopa.
6. Kutetezedwa ku fumbi.
Kupatula ntchito zazikulu pamwambapa, palinso ntchito zina.Ngati pali mafunso enanso okhudza chigoba cha solder, Chonde funsani akatswiri ku PHILIFAST.
Nthawi yotumiza: Jun-22-2021