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Cavity Down Enhanced BGA
EBGA is a cavity down, thermally enhanced BGA with laminated substrate. They are suitable solutions for high power dissipation applications (> 6W). EBGA uses BT laminated with multiple layers at a very competitive cost. Superior electrical performance is achieved by the multiple metal layer laminate based construction.
APPLICATIONS
Cavity down enhanced BGAs are the optimum solution for high power applications (>6W). Superior performance makes it ideal for the most demanding applications such as PLD, ASICs, DSPs, and micro-processors. They are well suited for advanced end uses such as networking switches, routers, Ethernet chips, cable modems, graphics in set-top-boxes, high-end computers, laptops, VME CPU / BUS boards, video GUI and wireless devices.
FEATURES
• BT laminated to spread heat for low cost applications
• Non-plating bar process with multiple layers for high end applications
• Package size up to 45x45mm
Process Flow Material
Wafer Back Grinding (Option) Grinding tape
Wafer Mount Blue tape
Wafer Saw & Clean  
2nd Optical Inspection  
Die Attach & Epoxy Cure Epoxy: Hitachi
Plasma Clean  
Wire Bond Gold Wire: 99.99% & 99% Au
Plasma Clean  
3rd Optical Inspection  
Encapsulation Dam: Hysol
Fill: Hysol
Encapsulation Cure  
Marking Black Ink
Ink Cure  
Solder Ball Mount, Reflow & Flux Clean Sn/Pb: 63-37; Sn/Ag/Cu: 95.5% / 4% / 0.5%
Final Visual Inspection  
Packing Tray
RELIABILITY
• Moisture Sensitivity JEDEC Level 3 (30°C / 60% RH / 192 hours)
IR: Eutectic : 225°C / Lead free : 250°C
• Temp. Cycle Test -65/+150°C, 1000 cycles
• Pressure Cooker 121°C, 100% RH, 2 atm, 168 hours
Note: Sample preconditioning prior to environmental tests are as follows:
Baking 125°C, 24 hours ◊ Pre-con: 30°C / 60% RH / 192 hours :
IR Reflow 3 times :
Eutectic : 225°C / Lead free : 250°C
 
 
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