The rise in demand for LEDs or Light
Why Sapphire is the most commonly used substrate
Sapphire is the most commonly used substrate material for a number of reasons. First, because it provides an excellent lattice match for the GaN, and, second it is transparent to LED output - a property that is really important since some of the light emitted by the LED partially passes through the edge of the sapphire substrate. And third, it helps in heat sinking the LEDs as it is a good thermal conductor.
What are the traditional methods used in Sapphire wafer dicing?
There are a number of Rodgers Camouflage Jersey traditional methods used for separating wafers with arrays of die into individual chips and these include dicing saw separation and scribe-and-break. However, such methods have some disadvantages including the following:
they can waste valuable wafer area
involve costly consumables
long process time.
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