Silicon Carbide Quiz

What is ratio of Si to C atom?

• 1 to 4

• 4 to 1

• 1/2 to 1

• 1/2 to 1/2

Tags

NGSS.HS-PS1-7

Which atom is bigger?

• Si

• C

• Si and C are the same size

• C is 10 times smaller then Si

How many covalent bonds are fomed in SiC structure?

• 1

• 2

• 3

• 4

Below is not a property of SiC ....

• a wide band gap material

• strong oxidation resistance

• high saturation drift velocity

• harder then diamond

What is 3C-SiC polytype structure?

• It is a Si with 4 atom C

• It is a SiC with 3C atom that covalently bonded

• It has Cubic oreintation

• It is a two layer structure of 3C and SiC that has one of the best electrical performance as compred to the rest

Rhombohedral is one of the

SiC crystal orientation

• yes

• no

• yes and no, because SiC has more then 200 crystal orientations

• Only if It has 5 layers of C-Si-C

What is the meaning of "6" in SiC polytype 6H-SiC?

• 6 Hidrogen atom

• 6 layers of C-Si-C

• 6 Helium atom

• 6 homogenous structures of Si-C

Which statement is not true?

• Diamond has 5 times more then

  Si in terms of Bandgap energy at 300K in eV

• SiC has more then twice Saturated electron drift velocity as compared to Si

• Si has better electron mobility as compared to SiC

• SiC has better thermal conductivity as compared to Diamond

What is the meaning of Stoichiometry in SiC atomic structure?

• 1 to 4 atomic structure

• 1 to 3 atomic structure

• 4 to 1 atomic structure

• 1/2 to 1/2 atomic structure

Tags

NGSS.HS-PS1-7

What is the maximum junction temperature limits for most of the Si device?

• 160^oC

• 260^oC

• 300^oC

• 100^oC