- #1
Excom
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Hallo
Is there someone that can explain why Al can be used to form Ohmic contats to both p- and n-type Si?
When looking at a Ohmic junction between a metal and a semiconductor, it is formed when the work functions are as follows: [tex]\Phi_m[/tex]>[tex]\Phi_p[/tex] and [tex]\Phi_m[/tex]<[tex]\Phi_n[/tex]. How can Al fulfil both or is there something that I am not aware of?
Is there someone that can explain why Al can be used to form Ohmic contats to both p- and n-type Si?
When looking at a Ohmic junction between a metal and a semiconductor, it is formed when the work functions are as follows: [tex]\Phi_m[/tex]>[tex]\Phi_p[/tex] and [tex]\Phi_m[/tex]<[tex]\Phi_n[/tex]. How can Al fulfil both or is there something that I am not aware of?