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- Hysol GR30HT | Black Epoxy Mold Compound
Hysol GR30HT | Black Epoxy Mold Compound
- High Thermal Conductivity GR30
- Designed for TO92 and TO220 packages
- Excellent reliability under high temperature and bias
Product Description
Hysol GR30HT is a high thermal conductivity version of GR30. It is a black semiconductor-grade epoxy molding compound (duroplast) designed for the encapsulation and protection of TO92, TO3P, TO220 and TO247 power devices. Once molded and post-mold cured, this product provides optimum protection and reliability for these semiconductor devices. Compared to the standard GR30 version, which has a thermal conductivity of 0.95 W/mK, GR30HT boasts more than twice as much thermal conductivity with 1.95 W/mK while also maintaining the high performance and moldability enhancements over the GR300 roots.
Hysol GR30HT is an environmentally "green" product, meaning that it doesn't contain any bromine, antimony or phosphorus flame retardants. Previous MG-series EMC dominated the space for power semiconductors but used halogen-containing flame retardants. This next generation epoxy mold compound replaces these older generation products. This material is designed to achieve JEDEC Level 1 requirements at 260°C reflow temperature on Nickel or Nickel-plated leadframes. It also achieves UL 94 V-0 Flammability at 1/8 inch (3.18mm) thickness.
Technical Specifications
| General Properties | |||||||||
| Color Color The color | Black | ||||||||
| Filler Content | 72 % | ||||||||
| Specific Gravity Specific Gravity Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless. | 2.1 | ||||||||
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| Physical Properties | |||||||||
| Spiral Flow @ 175°C | 88 cm | ||||||||
| Chemical Properties | |||||||||
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| Mechanical Properties | |||||||||
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| Thermal Properties | |||||||||
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| Glass Transition Temperature (Tg) Glass Transition Temperature (Tg) The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs. | 186 °C | ||||||||
| Thermal Conductivity Thermal Conductivity Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system. | 1.9 W/m.K | ||||||||
| UL 94 Rating UL 94 Rating Flammability rating classification. It determines how fast a material burns or extinguishes once it is ignited. HB: slow burning on a horizontal specimen; burning rate less than 76 mm/min for thickness less than 3 mm or burning stops before 100 mm V-2: burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed. V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed. V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed. 5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole. 5VA: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole | V0 | ||||||||
| Curing Conditions | |||||||||
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| Transfer Pressure | 40 - 100 kg/cm2 | ||||||||
| Transfer Time | 5 - 30 s | ||||||||
Additional Information
Designed for TO220 & TO247 devices
TO220 and TO247 are big, bulky packages, so molding these products with a standard mold compound is fairly easy without using any fine fillers. The trouble with these packages however is that epoxy mold compounds used typically fail High Temperature Reverse Bias (HTRB) testing, which exposes the device to humidity and temperature while the device is under BIAS. Devices often experience "gate leakage" under these conditions and fail catastrophically.
Furthermore, these devices are often used using a Nickel (Ni) leadframe, which is very difficult to adhere to. Therefore, epoxy moldng compound must have a very good adhesion to Nickel to achieve MSL1 preconditioning.