2 Inch Sapphire Crystal C Plane Polished Sapphire Wafers Sapphire Substrates

Specification:
Single crystal Al2O3 99.999％
Orientation: R-axis 0.5°

Diameter:50.8±0.1mm

Thickness :430±15um or 330±15um

Primary flat:16±1mm

OF Orientation flat: Off R to C axis 45°±0.1° C-plane(0001)

Frontside Surface Roughness:Ra＜0.2nm

Backside Surface Roughness: 0.8~1.2um ( Or double side polished, both side Ra＜0.2nm)

TTV:＜10um BOW:-10~0um WARP:＜10um

Laser Mark Series No. by needs

Package:Vacuum-sealed containers with nitrogen backfill in a class 100 environment

Cleanliness :Free visible contamination

1. Sapphire has a high optical transmittance, so it is widely used as microelectronic tube dielectric material, ultrasonic conduction element, waveguide laser cavity, and other optical elements, as window materials for infrared military devices, space vehicles, high-intensity lasers and optical communications.

2. Sapphire has high rigidity, high strength, high working temperature, abrasion resistance, corrosion resistance characteristics, so sapphire substrate is often used in harsh environments, such as boiler water gauge (high-temperature resistance), commodity bar code scanner, bearing, and other precision manufacturing (wear resistance), coal, gas, well detection sensors and detector windows (anti-corrosion).

3. Sapphire has the characteristics of electrical insulation, transparency, good thermal conductivity, and high rigidity, so it can be used as the substrate material of integrated circuits, such as LED and microelectronic circuits, ultra-high-speed integrated circuit.

Acceptance Check

Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturing sites in Shanghai, Jiaxing and Deqin etc.

Our products are mainly used in RF Telecom, Semiconductor, Biotech, Optical engineering and frequency control industries. The monthly production capacity: 500K single quartz blanks (SC, AT, IT, FC, etc.), 20K quartz wafers (AT, ST, X, Z, etc.), 10K LiNbO3 wafers (3~8 inch), 10K glass wafers (Fused silica, Borofloat33, Corning, etc.), 8K LiTaO3 wafers (3~6 inch), and 100K filters/oscillators (VCXO, TCXO).

Our company vision is to be a reliable primary Microelectronic substrates supplier in today's world.

The CQT Group consists of five major plants with total floor area over 10,000 m². Our production machines include crystal growth furnace, wire saw, X-ray orientation, grinding machine, polishing machine, chamfering machine, CNC, REDOX chambers etc. Inspection equipment include Flatmaster 200, AOI, profilometer, optical imager, X-ray inspector etc. We are also equipped with Class 100 and 1000 clean rooms.

The CQT group is primarily known as the expert of hexagonal crystals, We master the manufacturing process of single & doubly rotated quartz blanks, and we can provide quartz of any orientation cut whether given by IRE , Miller index, Euler angle or conventional sign.

In addition to our leading quartz blank manufacturing capabilities, the last decade sees our major technological breakthroughs. We overcome the 3~6 inch ultra-thin wafer mass production barrier, obtained the reduction technology of black LiNbO3 & LiTaO3 wafers, and achieved 8 inch LiNbO3 wafer mass production successfully.

Competitive Advantages

1. Reliable partner: We are in this business for over 30 years, served over 200 customers in 20+ countries.
2. Complete production line: We do crystal orientation, wire cut, grinding, polishing, etching, flat/notch, surface inspecting, x-ray detecting etc. all in house!
3. State-of-the-art cleanroom: We have 3 Class1000 clean room, 1 Class100 work desk, complete wafer cleaning & drying process.
4. Efficient customer service: Prompt RFQ response & Order confirmation in 24 hrs, customization lead time in 4 weeks.