Hi! I need some help understanding some basic concepts of semiconductor diodes...please,please help me by answering a few of myquestions....
1. Why do the static and dynamic resistances of a junction diode vary with the applied voltage?
2. During forward bias,majority carriers in either side move toward the junction....do they cross the junction? If not,how does the current flow through the entire diode?
3. Zener diodes have to tolerate very high power dissipation...how do they recover from the widespread bond-breakages and make themselves fit for reuse after breakdown has taken place?
4. In the breakdown region of a zener diode,the voltage remains constant...now,if we vary the applied voltage from the battery,how does the diode maintain the voltage against the change of current that will be caused?(i.e does the resistance value continuously vary itself?How?)