Hitachi Microscope & Magnifier S-3400N User Manual

3.5    Operation for Image Observation 

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(c)  3D mode 

This mode produces enhanced Topographic or 3D images with a mixture of specimen 
surface composition information and topology information.    Each pressing of the 3D 
mode button changes the intensity of shading. 

 
 

 

 

Fig. 3.5-8  3D Mode 

 

For BSE Gain, normally select a level 3.    If the amount of detected backscattered 
electrons is large and the image contrast appears to be too strong, change the Gain to 2 
or 1.    Conversely, if the image contrast is too low due to a low detection amount of 
backscattered electrons, the Gain setting should be changed to 4. 

 
NOTICE:  At a BSE Gain level or 4 or 3, depending on the characteristic of the detector, the 

observed image may drift sideways during fast scanning, such as in the TV or FAST 
scanning mode, resulting in an unclear image.    In such a case, either select the 
SLOW scanning mode or increase the probe current so that the BSE Gain level can 
be set low. 

 
(2)  Detailed settings of the BSE 

For detailed detector sensor settings, press the Detail button in the DETECTOR block to 
bring up a BSE dialog, which allows you to turn individual sensor signals on and off and 
select signal polarity reversal/non-reversal.