Ukuze siqonde imingeni eziswa amacandelo miniaturized kushicilelo solder paste, kufuneka siqale siqonde umlinganiselo indawo yoshicilelo stencil (Area Ratio).
Ukushicilela i-solder paste ye-miniaturized pads, i-pad encinci kunye nokuvulwa kwe-stencil, kunzima ngakumbi ukuba i-solder paste ihlukane nodonga lomngxuma we-stencil. ngereferensi:
- Isisombululo esithe ngqo kukunciphisa ubukhulu be-mesh yensimbi kunye nokwandisa umlinganiselo wendawo yokuvuleka.Njengoko kuboniswe kumfanekiso ongezantsi, emva kokusebenzisa i-mesh yensimbi encinci, i-soldering of pads of components ezincinci zilungile.Ukuba i-substrate eveliswayo ayinayo amacandelo obungakanani obukhulu, ke esi sisisombululo esilula kwaye siphumelele.Kodwa ukuba kukho amacandelo amakhulu kwi-substrate, amacandelo amakhulu aya kuthengiswa kakubi ngenxa yexabiso elincinci le-tin.Ke ukuba yi-substrate yokuxuba okuphezulu kunye namacandelo amakhulu, sifuna ezinye izisombululo ezidweliswe ngezantsi.
- Sebenzisa iteknoloji entsha ye-mesh yensimbi ukunciphisa imfuno yomlinganiselo wokuvuleka kwi-stencil.
1) FG (Fine Grain) stencil yentsimbi
Iphepha lentsimbi le-FG liqulethe uhlobo lwe-niobium element, enokucokisa iinkozo kunye nokunciphisa uvakalelo lobushushu obugqithisileyo kunye nobushushu bentsimbi, kunye nokuphucula amandla.Udonga lomngxuma we-laser-cut FG steel sheet lucocekile kwaye lugudileyo kunelo liqhelekileyo le-304 sheet sheet, elilungele ngakumbi ukudiliza.Umlinganiselo wendawo yokuvula i-mesh yensimbi eyenziwe kwiphepha lensimbi ye-FG ingaba ngaphantsi kwe-0.65.Xa kuthelekiswa ne-304 yentsimbi ye-mesh kunye nomlinganiselo ofanayo wokuvula, i-FG mesh yensimbi inokwenziwa ibe ngqindilili kancinane kune-304 mesh yentsimbi, ngaloo ndlela inciphisa umngcipheko we-tin encinci kumalungu amakhulu.
Ixesha lokuposa: Aug-05-2020