Cree's process for producing Silicon Carbide?

[gyani]

Hello,
I was just wondering what process Cree utilizes to produce silicon carbide. Also, what coating do they use(phosphor?)?
Thank You

 

[HarryN]

Hi, most SiC like that is grown by VPE, which for SiC is often solid sources. Since there are 128 different allotropes of SiC, and only a very few work, I am sure it is quite an exciting process control challenge.

edit - It occured to me that not everyone knows that VPE is vapor phase epitaxy, which more or less means growing crystals by condensing molecules onto a surface in a vacuum.

 

[gyani]

Thank You very much.