STEVE Posted April 13, 2006 Report Share Posted April 13, 2006 On a photodiode does anyone know what the N+ region between the cathode and the N substrate is for?Thanks in advance! Quote Link to comment Share on other sites More sharing options...
STEVE Posted April 13, 2006 Author Report Share Posted April 13, 2006 Found the answer ... It's an ohmic contact to reduce the resistance between the semi-conductor and the metal contact. Quote Link to comment Share on other sites More sharing options...
gogo2520 Posted April 14, 2006 Report Share Posted April 14, 2006 Hello Steve Were did you find the answer at? gogo Quote Link to comment Share on other sites More sharing options...
STEVE Posted April 14, 2006 Author Report Share Posted April 14, 2006 http://www.osioptoelectronics.com/products/02-07_PDiodeChar_OSIOpto_0.pdf"To form an ohmic contact another impurity diffusion into the backside of the wafer is necessary. The impurity is an N-type for P-type active area and P-type for an N-type active area." Quote Link to comment Share on other sites More sharing options...
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