990 



THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1957 



minority carriers should be the order of or larger than the center region 

 width. 



4.2 Experimental Results 



The forward characteristics of the five typical high voltage rectifiers 

 mentioned in Section 2.2 were measured with a X-Y recorder, and all 

 showed similar shapes. Diode No. 8 will be discussed in detail in this sec- 

 tion. 



The forward current- voltage characteristic was measured at three 

 temperatures: 220° K, 300° K, and 375° K. Measurements below cur- 



10-2 



10-3 



5 



lO"'* 



ui 



a. 



Ml 



I 10-5 

 < 



5 



5 10-6 



a. 

 o 



10-7 

 5 



10-8 



10-9 



0.1 



0.2 0.3 0.4 



V IN VOLTS 



0.5 



0.6 



Fig. 8 — The calculated and observed current-voltage characteristic of a for- ! 

 ward biased junction at 300° K. 



