Single Crystal Quartz Wafers

Our abundance experience at growing and mass production for piezo grade quartz . We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking.

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Brief Introduction

Our abundance experience at growing and mass production for piezo grade quartz . We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking.

Our R&D is active at developing and researching from big material to process 8” quartz wafer or more.

Product Parameters

Material	Quartz Crystal
Cutting Angle	X/Y/Z/AT32、33、36/BT/ST42.75°-cut etc
Diameter/size	3”(76.2mm)	4” （100mm)	6"(150mm)	8"(200mm)
Tol(±)	<0.20 mm
Thinnest Thickness	0.08mm Min	0.10mm Min	0.20mm Min	0.35mm or more
Primary Flat	22mm	32mm	42.5mm	57.5mm
LTV (5mmx5mm)	<1µm
TTV	<3µm
Bow	-30<bow<30
Warp	<40µm
PLTV(<0.5um)	≥95%(5mm*5mm)
Orientation Flat	All available
Surface Type	Single Side Polished /Double Sides Polished
Polished side Ra	<0.5nm
Back Side Criteria	General is 0.2-0.5µm or as customized
Edge Criteria	R=0.2mm or Bullnose
Material Property	ECD	Better than grade 4
	Inclusion	Better than grade II
	Q-Value	Better than grade C
Wafer Surface Criteria	Particles ￠>0.3 µ m	<= 30
	Scratch , Chipping	None
	Defect	No edge cracks, scratches, saw marks, stains
Packaging	Qty/Wafer box	25pcs per box

Fused silica， also known as fused quartz, is a glass made from silica (silicon dioxide, SiO2) that has been melted and re-solidified. It is a highly pure form of glass, with very low levels of impurities, and has a number of unique properties that make it useful in a variety of applications.

One of the most important properties of fused silica is its high transparency, which allows it to be used in applications where light transmission is important. It is often used in optical components, such as lenses and windows, because it has excellent optical clarity and low optical distortion.

Another important property of fused silica is its resistance to thermal shock. It can withstand sudden changes in temperature without cracking or breaking, making it useful in applications where temperature changes are common, such as in high-temperature furnaces or in laser optics.

Fused silica also has good chemical resistance, being inert to most acids and alkalis. This makes it suitable for use in harsh chemical environments, such as in the processing of acids or alkalis.

Due to its unique properties, fused silica has a wide range of applications. It is used in scientific instruments, such as spectroscopes and microscopes, where high optical clarity is essential. It is also used in the manufacture of high-performance optical fibres and in the processing of semiconductors, where its resistance to thermal shock and chemical corrosion is beneficial.