ES3404 Single-part Epoxy for Chip Encapsulation
ES3404 is a one component epoxy adhesive for electronic devices with various applications such as casting and sealing. This resin can be fast cured at high temperature, which provides a tough, strong, structural bond to many substrates. When using for chip encapsulation, it can buffer the expansion and contraction stress of the bonding joint and can buffer the shear force conducted by the reaction force during the drop test.
Features and benefits
- Low viscosity, excellent fluidity, solvent-free and non-volatile system, easy to operate.
- The hardening surface will not exhibit a surface oiliness and poor gloss.
- High rebound, fatigue and crack resistance.
- The reactivity temperature is higher than 150oC.
- Complying to the 2011/ 65/EU RoHS regulations.
- Complying to chlorine < 900ppm, bromine < 900ppm, chlorine + bromine < 1500ppm.
Specifications
TYPICAL UNCURED PROPERTIES
| Properties | ES3404 |
| Appearance | Liquid |
| Color | Light yellow |
| Viscosity @ 25°C, cps
S21 20rpm |
510 ~ 810 |
| Specific Gravity | 1.15 |
TYPICAL CURING PROPERTIES
| Properties | ES3404 |
| Pot Life, 25°C, days | 5~7 |
| Through Cured Time @ 80°C, min | 30 |
| Through Cured Time @ 100°C, min | 15 |
| Through Cured Time @ 120°C, min | 10 |
| Through Cured Time @ 150°C, min | 5 |
TYPICAL CURED PROPERTIES
| Properties | ES3404 |
| Glass Transition Temp., (MDSC), °C | 12 |
| CTE (*2) (<Tg), μm/m/°C | 80 |
| CTE (*2) (>Tg), μm/m/°C | 203 |
| Durometer Hardness, Shore A | 77 |
| Specific Gravity | 1.218 |
| Degradation Temp
(TGA 10°C /min), °C |
311 |
| Water Absorption Ratio (25°C/24hrs), % | 2.40 |
| Water Absorption Ratio (80°C/24hrs), % | 0.95 |
| Water Absorption Ratio (97°C/1.5hrs), % | 1.89 |
| Weight Loss Ratio @ 100°C, % | 0.03 |
| Weight Loss Ratio @ 150°C, % | 0.80 |
| Weight Loss Ratio @ 200°C, % | 1.69 |
| Weight Loss Ratio @ 250°C, % | 2.55 |
| Weight Loss Ratio @ 300°C, % | 4.18 |
| Weight Loss Ratio @ 350°C, % | 14.75 |
| Volume Resistivity, ohm-cm | 4/5 x 1015 |
| Surface Resistivity, ohm | 4.5 x 1014 |
| Dielectric Constant 1KHz | 3.2 |
Technical Documents
ES3404 Technical Data Sheet
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