p-n junction rectificatiionp_n

p n p n junction p n p n

n p n junction n p n

p n p junction p n p

n-p junction n-p

p n junction p n

p n p n junction

p p junction p p

p-n junction p-n

p-p junction p-p

n n junction n n

lateral polysilicon p +p -n + junction

n p n junction

N-P-N junction transistor

n-p-n-p structure

p n p junction

p n p n transistor

p n p n transistor p n p n

p-n-p junction