How can I determine the junction area of a diode?

[shaiqbashir]

Hi Guys!

How are u my friends?

Well i want to ask u one important thing!

Please tell me the way to find out the junction area of a diode

Thanks in advance

 

[rayjohn01]

You have to know what type of diode you are dealing with i.e small signal , power
and so on , also the type of construction . Some diodes (small ) are made from chips
and the die information may be available from the manufacturer, Philips is pretty good for that . Otherwise it maybe required to literally decapsulate the device and look at
it under a microscope ( not impossible but difficult ) . Ray

 

[ravenprp]

Hello there! The junction area of a diode is the region where the P-type and N-type semiconductor materials meet. This area is typically very thin, on the order of a few micrometers, and is responsible for allowing current to flow in only one direction through the diode. To find out the actual junction area, you can refer to the datasheet of the diode, which should provide the dimensions of the junction area. Alternatively, you can also measure the junction area using a specialized tool called a scanning electron microscope. I hope this helps!