Variation of Orientation Angles


AT-Cut

   
   

Ordering formula Example
(1) ZZ’ angle with accuracy (1) 35º 13’±3’ or 3º00’± 3’ (38º13’-zz’)
(2) XX’ angle with accuracy (2) 0º00’±30’
(3) Angle asssortment (3) 30’’ assortment
(4) Dimension with tolerance (square or round) (4) 9.5 mm square ± 0.1 mm
(5) Thickness or frequency with accuracy (5) 0.20 ±0.0/ mm
(6) Surface Finish 
      Major 
      Edge
(6)  
     # 2000 
     #  500
(7) Flatness and parallelism (7) Max. 0.5 mm
(8) Crack and chips (8) Within 0.5 mm in depth
(9) Quartz Material (9) Pure-Z, Q-value ³ 2.2 x10 6
(10) Flat (axis indication) (10) Not Required


Variation od the specifications

Surface Treatment 

Angle Accuracy

Quartz
Materials 

Q-Value 

Others 

 

AT-Cut 

     
 

ZZ ’

XX’ 

     

Lapping 

 ± 15’’ ± 15’ Pure - Z  3.0 x 106  Bevelling 

# 1000/15mm  

 ± 30’’ ± 20’      

# 1000/15mm  

± 1’  ±30’    2.4 x 106   Convex 

# 1000/15mm  

± 2’  ± 40’      

# 1000/15mm  

± 3’    Y-Bar  1.8 x 106  Angle assortment 

Polishing

         

Etching

         

* Any other custom speecification can be discussed on request.
lanks