1218 THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER 1956 



AQUA DAG 



"7^^ 



\ 



-ORIGINAL SURFACE 



JUNCTION 



BEVELED SURFACE 



0.10 





'^W 





m 





0.05 





 0.10 



cr 

 m 



1- 



LU 



I- 



z 



LU 

 U 



z 

 X 



0.05 





 0.10 



0.05 



10 20 30 40 



n 



Fig. 8 — Evaluation of the interference fringe pattern on a scribed 'p-n junction. 



