Thermoset ME-455 Board Level Encapsulant Where to Buy
Product Information
LORD Thermoset ME-455 encapsulant is a one-component, semiconductor grade epoxy designed for the encapsulation of wire-bonded or flip chip die in PPGA, BGA, MCM and other cavity packages. It is formulated with high purity resins, fillers and additives to provide the ionic purity levels required for use in high-end microelectronic applications and minimize the chances of ion-induced corrosion in these devices.
Thermoset ME-455 encapsulant offers good adhesion to silicon, laminate, ceramic, solder mask and metal surfaces. It can be used in demanding high-end, consumer and automotive applications.
Shelf Life
Shelf life is six months from date of manufacture when stored at -40°C in original, unopened container. Syringe must be maintained at -40°C in a vertical (upright) position with the dispense tip facing down. Do not store syringe on its side (horizontally).
This material is shipped and stored frozen. Consult handling instructions** for thawing.
** Handling instructions are available on LORD.com.
Features and Benefits
Low Stress – exhibits low shrinkage and stress on components as it cures.
Low Coefficient of Thermal Expansion – minimizes the possibility of cracking during temperature cycling; provides excellent temperature shock performance.
Fast Cure –quickly cures at 150°C, leaving no pits or voids for a smooth surface.
Self-Leveling – rapidly flows into hard-to-reach spaces.
Uncured Typical Properties*
| Appearance | Black Paste |
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Viscosity, cps @ 25°C Spindle 14, 10 rpm |
19,000 |
| Specific Gravity | 1.69 |
| Gel Time, min @ 150°C | 3 - 5 |
| Working Life, hr @ 25°C | 36 |
| Cure Time, min @ 150°C | 30 |
Cured Typical Properties*
| Volume Resistivity, ohm-cm @ 25°C | 1 x 1015 |
| Coefficient of Linear Thermal Expansion, ppm/°C |
alpha 1 = 19 alpha 2 = 60 |
| Glass Transition Temperature (Tg), °C | 135 |
| Hardness, Shore D | 91 - 98 |
| Modulus of Elasticity, GPa | 6 |
| Dielectric Constant | 3.5 |
| Dissipation Factor | 0.008 |
| Extractable Ionic Contaminants |
Chloride = 5 Sodium = 5 Potassium = 1 |
*Data is typical and not to be used for specification purposes.
Literature
| Download | Type | Name | |
|---|---|---|---|
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Safety Data Sheet | Thermoset ME-455 | |
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Technical Data Sheet | Thermoset ME-455 Board Level Encapsulant | |
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User Instructions | Electronic Materials Handling Instructions (-40°C Storage Temperature) | |
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Product Catalog | Microelectronic Materials Catalog |