Doubly Rotating SC IT Crystal Quartz Blanks with zero temperature drift for High-end Oscillators
Single Crystal Quartz is made into oscillators becoming the beating heart for many of today's sophisticated electronic circuits. Many high-end oscillators used in space probe for example requires zero temperature drift over a wide temperature range. This is where the Doubly Rotated Quartz blanks come into use. They are fabricated with a double angular rotation suitable for operation in the thickness shear mode. Typical doubly rotated cuts are SC-cut and IT-cut, which are designed to reduce the effects of stress on resonant frequency.
BonTek possess the doubly rotating technology as well as the Swept Quartz technology, combined will provide you the best suitable oscillation part for use in the most hostile environment.
| Product | Single Crystal Quartz Blanks (Piezo / Optical grade) |
| Crystal Bars | Pure Z Bar,Pure Y Bar,Swept Quartz |
| Q-Value | Min 1.8×10^6, 2.4×10^6, 3.0×10^6 (IEC standards) |
| Etch Channel Density | 2/cm2,10/ cm2,30/ cm2,100/ cm2,300/cm2； Swept Quartz (IEC standards) |
| Inclusions | Ia,Ib,I, II,III Grades (IEC standards) |
| Cut Type | AT, BT, CT, ET, DT, GT, NT, FC, SC, IT, AC, BC, ST, TS, MT, NT RT, LC, etc. |
| Angle Tolerance (±) | Theta Angle:±5″,±10″,±15″,±30″,±1′,±2′,etc. |
| Phi Angle:±5′,±10′,±15′,±30′,etc. |
| Size For Round Blank | From 3.0mm to 50.80mm (with flat) / 2”, 3”, 4”, 5”, 6” and 8’’ (wafers) |
| Size For Square Blank | 1.6×1.6mm ～ 41×48 mm or even larger size |
| Size For SMD Blank | 1.2x2.4mm Above at Customer option |
| Size Tolerance (±) | ±0.01 mm, ±0.005mm, ±0.0005mm, |
| Frequency/ Thickness | 1 MHz up to 54Mhz for AT-Cut Fundamental; Up to 70Mhz by Etching |
| Flat | Per requested (flat perpendicular to X axis within ±10 deg) |
| Surface Finishing | #1000(9u); #2000(7u); #3000(5u); #4000(3u) (SiC); Polished(Cerium Oxide)& etched Std |
| Overtone | Fundamental,Third Overtone (3rd),Fifth Overtone (5th) |
| Contouring (°dioptric) | Plano-Convex: 0.5°dioptric～10°dioptric； Bi-Convex: 10°dioptric～15°dioptric |
FAQs:
- Q: What are the products you mainly work on?
A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.
- Q: Can you accept product customization?
A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.
- Q: Can you deliver the goods via our courier agent?
A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.
- Q: How can you guarantee we get what we want safely?
A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.
- Q: Can we visit your factory?
A: Sure. Factory inspection is important for large quantity purchase and long-term cooperation. Face to face discussion is what we mostly confident with. During the past years, big names around the world have witnessed our progress in factory build-up. These days, due to the Covid-19 pandemic, we also had the experience of videoconferencing with global buyers.
Acceptance Check
- The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
- After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
- Please open the vacuum package in a clean room when the products are to be applied.
- If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
