Designation: SP-204-70 SP-204-75
Special Purpose: the formation of solderable silver electrode of PCTR |
| 一、Pastes Properties |
1.Silver Contact: SP-204-70; 70±1% SP-204-75; 75±1%
2.Viscosity: 1000-1500Kcps(4#Spindle; 25℃; 0.3r/min; NDJ-8S; shanghai)
3.Fineness:≤7μm
4.Coverage: SP-204-70: 110-130cm²/g; SP-204-75: 90-110cm²/g |
| 二、The Fired Film Properties |
1.Sheet Resistivity: SP-204-70≤5mΩ/□; SP-204-75≤3mΩ/□
2.Defination:≤0.2mm
3.Solderability: dipping soldering coverage 95% (Sn/Pb or Sn62/Pb36/Ag2; 215℃-230℃; rosin flux)
4.Solder resistance: ≥5sec (Sn63/Pb37; Sn60/Pb40 or Sn62/Pb36/Ag2;230℃5.Adhesion: SP-204-70≥1.5kg; SP-204-75≥2kg (Ф10mm disk;Ф0.6mm wire; 90° peel strength) |
| 三、Application Guidelines |
1.Screen Prine: 150-250mesh: optimum: 200mesh
2.Drying: 150℃/3min
3.Firing: peak temp and time: 570±10℃/10min; cycle: 60 min
4.Thinner: ethylene glyool monlobutyl ether or terpineol
5.Storage keep in a cool place away from heater or open flames, minimum shelf-life six months. |
