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The substrate that sticks a LED is what material and its characteristic
From;    Author:Stand originally
Cermet of tall heat conduction (LTCC-M) compound substrate for example: Substrate of pottery and porcelain of high power LED, its main characteristic is as follows:

1. high fever conducts low thermal resistance
2. heats up coefficient of expansion to match (TCE:6.2)
3. fights UV
4. is fought corrode and etiolation
5. accords with Rohs regulation
6. tall air-tightness
7. is high temperature resistant

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