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				TGT1
				
				
													Product Description
					
						Calibration grating TGT1 is intended for  
	- tip shape and sharpness estimation and further using in deconvolution program; 
 
	- tip degradation and contamination control.
 
 
    
	 SEM image of TGT1 grating
 
 					 
												
								
								General Features
				
					
														
									| Structure | 
									the grating is formed on Si wafer top surface  | 
								 
															
									| Pattern type | 
									3-D array of sharp tips | 
								 
															
									| Period | 
									3±0,05 µm | 
								 
															
									| Height | 
									0.3 - 0.5µm | 
								 
															
									| Chip size | 
									5x5x0,5 mm | 
								 
															
									| Effective area | 
									central square 2x2 mm | 
								 
															
									| Tip angle | 
									50±10 degrees (on the very tip end) | 
								 
															
									| Tip curvature radius | 
									≤10nm | 
								 
															
									| Diagonal period | 
									2,12 µm | 
								 
												 
				 
								
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