Quartz Crystal Wafer/Ring

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Single crystal quartz wafers/blanks are made of synthetic quartz crystal. It has good piezoelectric effect and is widely used in timing frequency control, frequency selection and QMEMS. Cutting-edge applications include VCXO, TCXO, OCXO etc.

Material Characteristics

Material	Piezo / Optical grade
Q-Value	Min 1.8x10^6, 2.4x10^6 to 3.0x10^6 IEC standards
ECD	Max: 2 /c, 10/c, Max 30/c, Max 100/c, Max 300/c; Swept Quartz
Inclusions Density	Ia, Ib, I, II, III Grades
Swept	Both Pure Z and Y Bar available,with or without Swept quartz ( )

processing capacity - wafers

Diameter	3"(76.2mm)	4"(100mm)	6"(150mm)	8"(200mm)
Thickness	0.08mm Min-up	0.10mm Min-up	0.20mm Min -up	0.35mm Min-
Primary Flat	22mm	32mm	42.5mm	57.5mm or notch
Surface	LTV (5mmx5mm)	<1.5µm	TTV	<1.5~3 µm
	Bow	-30<bow<30	Warp	<40µm
	Surface Type	SSP / DSP	Edge Criteria	R=0.2mm or Bullnose
	Polished side Ra	<0.5nm or per requested	Back Side Criteria	General is 0.2-0.5µm or as customized

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