I-Solder mast yinxalenye ebaluleke kakhulu yeebhodi zesekethe eziprintiweyo zePCB, Akukho mathandabuzo okuba imaski yeSolder iya kunceda ukuhlanganisana, nangona kunjalo yintoni enye into eyenza i-solder imaski inegalelo?Kuya kufuneka sazi ngakumbi malunga ne-solder mask ngokwayo.
Yintoni i-solder mask?
Imaski yesolder okanye imaski yokumisa i-solder okanye ukumelana ne-solder ngumaleko obhityileyo ofana ne-lacquer yepolymer edla ngokusetyenziswa kwimikhondo yobhedu yebhodi yesekethe eprintiweyo (PCB) yokukhusela kwi-oxidation kunye nokuthintela iibhulorho ezithengiswayo ukuba zenzeke phakathi kweepads ezisondeleleneyo zokuthengisa. .
Ibhulorho ye-solder ludibaniso lombane olungacetywanga phakathi kwee-conductor ezimbini ngokusebenzisa i-blob encinci ye-solder.
IiPCB zisebenzisa iimaski zesolder ukuthintela oku kungenzeki.
Imaski yeSolder ayisoloko isetyenziselwa iindibano ezithengiswa ngesandla, kodwa ibalulekile kwiibhodi eziveliswe ngobuninzi ezithe zathengiswa ngokuzenzekelayo kusetyenziswa iindlela zokuphinda zibuyele okanye zokuhlambela.
Xa sele isetyenziswe, ukuvuleka kufuneka kwenziwe kwi-mask ye-solder naphi na apho amacandelo athengiswa khona, aphunyezwa ngokusebenzisa i-photolithography.
SImaski endala iluhlaza ngokwesiko kodwa ngoku iyafumaneka ngemibala emininzi.
Inkqubo ye-solder mask
Inkqubo yemaski ye-solder ibandakanya inani lamanyathelo.
Emva kwesinyathelo sokucoca kwangaphambili, apho iibhodi zeesekethe eziprintiweyo zihlanjululwa kwaye ubuso bobhedu bunomatshini okanye i-chemically rough end, i-mask solder isetyenziswa.
Kukho iinkqubo ezininzi ezifana nokugquma ikhethini, ukuprintwa kwesikrini okanye ukutshiza okukhoyo.
Emva kokuba ii-PCB zigqunywe ngemaski ye-solder, i-solvent kufuneka ifakwe kwi-tack-drying step.
Inyathelo elilandelayo kulandelelwano kukutyhileka.Ukuze uhlele imaski ye-solder, umsebenzi wobugcisa usetyenzisiwe.Iibhodi zibonakaliswe kunye nomthombo wokukhanya oqhelekileyo we-360 nm.
Iindawo ezivezwayo ziya kupholima ngelixa iindawo ezigqunyiweyo ziya kuhlala ziyimonomer.
Kwinkqubo yokuphuhlisa iindawo ezicacileyo zixhathisa, kwaye iindawo ezingabonakaliyo (i-monomer) ziya kuhlanjwa.
Ukunyangwa kokugqibela kwenziwa kwi-batch okanye i-oven ye-tunnel.Emva kokunyangwa kokugqibela, unyango olongezelelweyo lwe-UV lunokufuneka ekwandiseni iimpawu zomatshini kunye neekhemikhali zemaski ye-solder.
Umsebenzi ophambili we-solder mask:
Ke yintoni umsebenzi weSolder Mask?
Khetha zibe mbini phakathi koluhlu:
1. Ukukhuselwa kwi-oxidation.
2. Ukukhuselwa kubushushu.
3. Ukukhuselwa kwibhulorho ye-solder ngempazamo.
4. Ukukhuselwa kwi-electrostatic discharge.
5. Ukukhuselwa kwi-hyper discharge yangoku.
6. Ukukhuselwa eluthulini.
Ngaphandle kwemisebenzi ephambili apha ngasentla, kukho nezinye izicelo.Ukuba kusekho imibuzo eyongezelelweyo malunga nemaski ye-solder, Nceda uqhagamshelane neengcali kwi-PHILIFAST.
Ixesha lokuposa: Jun-22-2021