Corner Bonding and Edge Bonding
What is Edge Bonding?
Chips are the core brains of electronic products. Without glue protection, the solder bumps between chip and PCBs may crack due to drops, distortions, and collisions, thus resulting in the failure of the overall electrical function. At present, there are various types of computer chips, with different sizes and pitches.
MCOTI Edgebond products are developed and designed to provide excellent protection in a plent of applications especially for large size chips. However, Edgebond material has aslo obvious advantages over underfill which has limited flow, filling and higher cost. In the application of smaller chips, underfill is more widely used featuring as its'higher reliability of protecting the chip than Edgebond solution.

Features of Edge Bonding
- Edgebond materials offer a good balance between cost and reliability with the package size larger than 30mmX30mm;
- High TG and Low CTE;
- High temperature and humidity resistance;
- High and low temperature impact resistance;
- High and low temperature cycle resistance;
- High adhesion for FR4, aluminum, solder mask, substraiter

MCOTI Edge Bonding Recommendations
Typical Products:
|
Products |
Appearance |
Viscosity mPa.s |
Curing |
Hardness Shore D |
Features |
|
EW 6300 |
Black |
51,000 |
RT~150°C@3min; 150°C@10min |
90 |
1. High viscosity & TI. 2. Excellent reliability under Thermal cycle & Shock condition 3. Good Drop Resistance |
|
EW 6300 HV |
Black |
29,300 |
RT~150°C@3min; 150°C@10min |
88 |
1. High viscosity & TI. 2. Excellent reliability under Thermal cycle & Shock condition 3. Excellent flame retardant |
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