Hangzhou Freqcontrol Electronic Technology Ltd.

SAW Grade Lithium Niobate Wafers

Our abundance experience at growing and mass production for SAW grade Lithium Niobate crystal wafers. We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

Our R&D is active at developing and researching from new material to finished products at all kinds of optical doped wafers & electronic components.

CQT produce the products:single piezo crystal, quartz blanks, Single Quartz Blanks, lithium niobate wafer and lithium tantanlate wafer. We has been servicing for microelectronic manufacturers, defense related contractors, National laboratories, universities and scientists around the world since 1990

Product Parameters

CQT supply lithium niobate wafer, which include saw grade lithium niobate wafers and optical grade lithium niobate wafers, Our products have high quality and competitive prices. We focus on innovation, cost-effectiveness, and superior quality for our customers.

Optical Grade Lithium Niobate Wafers

Our abundance experience at growing and mass production for Optical grade Lithium Niobate. We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

CQT supply lithium niobate wafer, which include saw grade lithium niobate wafers and optical grade lithium niobate wafers, Our products have high quality and competitive prices. We focus on innovation, cost-effectiveness, and superior quality for our customers.

All the wafers are under strict quality control and inspected. And also under the strict surface cleaning and flatness control as well.

Product Parameters

Application list:

Integrated waveguide photonics; Wave Guide Lasers; Quasi-phase Matching for SHG&OPO; EO waveguide Phase & Amplitude Modulators  

CQT is specialized in producing fused silica wafers, fused quartz wafers, fused glass wafers, glass substrates for biochemistry, inorganic scintillation crystal material, lithium niobate wafer, lithium tantanlate wafer, piezo single crystal blanks finished crystal and finished saw filters.

Fe doped LT Wafers

Our abundance experience at growing and mass production for SAW grade Lithium Tantalate. We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

 CQT supply lithium tantanlate wafer, which include fe doped lt wafers, saw grade lithium tantalate wafers and optical grade lithium tantalate wafers. We are committed to the supply of all types of substrate wafers to the microelectronics industry

Our R&D is active at developing and researching from new material to finished products at all kinds of Fe doped wafers & electronic components.

Product Parameters

SAW级钽酸锂晶圆

我们在SAW级钽酸锂的生长和批量生产方面拥有丰富的经验。我们在晶体生长，晶圆研磨，抛光和检查方面配备了先进的设备，所有成品都通过了居里温度和QC检测。 

 CQT供应锂钽酸盐晶片，其包括fe掺杂的晶片，锯级钽酸锂晶片和光学级钽酸锂晶片。

我们的研发部门积极开发和研究各种光学掺杂晶圆和电子元件的新材料和成品。 

产品参数

Optical Grade Lithium Tantalate Wafers

Our abundance experience at growing and mass production for Optical grade Lithium Tantalate. We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

 We supply lithium tantanlate wafer, which include fe doped lt wafers, saw grade lithium tantalate wafers and optical grade lithium tantalate wafers.

Our R&D is active at developing and researching from new material to finished products at all kinds of optical dopped wafers & electronic components.

Product Parameters

CQT dedicated to produce series glass wafers, fused silica wafers, SAW grade lithium tantalate wafers, optical grade lithium tantalate wafers, SAW grade lithium niobate wafers, optical grade lithium niobate wafers. CQT is a leading Chinese manufacturer who involves in piezoelectric crystals, surface acoustic wave filters and the single crystal growth.

for Optical grade application 

1. Low pass filters of Digital Camera in high end models/ holographic components for DVD pick up
2. Optical communications; optical switches and modulators/ Gyro sensors
3. Laser wavelength converter, generating Blue and Green lasers/By using SHG techniques (Displays, medical, and environmental purposes)

石英材料

石英的水热生长：

1. 用水加矿化剂（NaOH或Na 2 CO 3）将高压釜填充到某个预定因子。
2. 挡板定位温度梯度，使每个区域几乎等温。
3. 种子是（通常）Z切单晶的薄片。
4. 营养素由小块（~2½到4厘米）的单晶石英（“lascas”）组成。
5. 温度和压力通常为约350℃和800至2,000个大气压; T2-T1通常为40℃至100℃。  

（每次运行30至260天），扩散到生长区，并沉积在种子上。

CQT supply piezo single crystal blanks, which include quartz materials and quartz blanks. We has been servicing for microelectronic manufacturers, defense related contractors, National laboratories, universities and scientists around the world since 1990

Product Parameters

1. Physical properties of synthetic crystal quartz

More details about finished crystals, saw filters, quartz blanks process flow and fused silica wafers, please contact us.

Our company export quartz blanks, LN wafer and LT wafer

crystal quartz refractive index vs wavelength

evaluation of synthetic quartz crystal

1. a) The amount of crystal defect and impurity in synthetic quartz crystal depends on growth rate, mineralizer and raw material. The growth rate affects greatly to the important properties such as infra-red absorption coefficient α, which correlates to Q value, and frequency –temperature characteristics. The larger growth rate causes increase in α, decrease in Q value, and dispersion in frequency-temperature characteristics.
2. b) The quality index of synthetic quartz crystal was originally a Q value, and a 5 MHz quartz crystal unit operated in 5th overtone mode was used to obtain the Q value. But it required laborious work to fabricate the 5 MHz crystal unit, so the index had been changed to the coefficient α instead of the Q value.

specification for synthetic quartz crystal

1. a) Twinning: There shall be no electrical or optical twinning in the usable region.
2. b) Strain: There shall be no strain contained both inside and surface of seed crystal as well as in a grown quartz crystal.
3. c) Cracks and fractures: There shall be no cracks, chippings or fractures in the usable region.
4. d) Inclusion density: The specification is in accordance with the IEC 60758.

60758. e) Infra-red quality indication: The specification is in accordance with the IEC 60758.

60758. f) Etch channel density: The specification is in accordance with the IEC 60758.

for lumbered quartz crystal

1. a) Angles:
2. Rotation angle of X-surface around Y-axis: 00°00’±15’
3. X轴表面绕Z轴的旋转角度：00°00'±15'
4. b）尺寸公差： 
5. 沿X或Z轴：± mm 
6. 沿Y轴：±10 mm 

c）表面粗糙度：可定制，研磨和抛光。

石英空白

该材料由单晶右手α-石英人工生长的棒组成，其用于制造压电，例如定时频率控制和在水热条件下在沿Y轴长度的种子上的频率选择。

压电单晶空白

产品参数

如果您对LN晶圆，LT晶圆，锯片滤波器，压电单晶坯，生物传感器和光学级钽酸锂晶圆有任何疑问，我们将为您提供专业的解答。

光学级石英晶片

我们在光学级石英的生长和批量生产方面拥有丰富的经验。我们在晶体生长，晶圆研磨，抛光和检查方面配备了先进的设备。 

制造商  熔融石英及石英玻璃制品晶片，压电单晶晶片，系列玻璃和熔融石英片，单晶晶片。

我们的研发部门积极开发和研究从大型材料到加工6“光学级石英晶片。 

产品参数

CQT致力于生产系列玻璃晶圆，熔融石英晶圆，SAW级钽酸锂晶圆，光学级钽酸锂晶圆，SAW级铌酸锂晶圆，光学级铌酸锂晶圆。CQT是中国领先的制造商，涉及压电晶体，表面声波滤波器  和单晶生长。

Series Glass & Fused Silica Wafers

CQT uses a variety of glass and quartz depending on the application and material requirements. Our designers and engineers are skilled at working with any number of glass and quartz materials to machine and fabricate precision optical products such as fused quartz parts for optics, fused silica parts used in fiber optic applications, and borosilicate glass parts found in semi-conductor manufacturing.

Product Parameters

The general specs are as follows sheet, if your specified is not included with it, you may freely tell us and we’ll pleased to customize them for you.

Find here details of CQT selling lithium niobate wafer, lithium tantanlate wafer, piezo single crystal blanks and glass substrates for biochemistry.

CQT dedicated to produce series glass wafers, fused silica wafers, SAW grade lithium tantalate wafers, optical grade lithium tantalate wafers, SAW grade lithium niobate wafers, optical grade lithium niobate wafers. CQT is a leading Chinese manufacturer who involves in piezoelectric crystals, surface acoustic wave filters and the single crystal growth.

Process capability:

Related Products

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. 

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

Find here details of CQT selling lithium niobate wafer, lithium tantanlate wafer, piezo single crystal blanks and glass substrates for biochemistry.

Product Parameters

CQT dedicated to produce series glass wafers, fused silica wafers, SAW grade lithium tantalate wafers, optical grade lithium tantalate wafers, SAW grade lithium niobate wafers, optical grade lithium niobate wafers. CQT is a leading Chinese manufacturer who involves in piezoelectric crystals, surface acoustic wave filters and the single crystal growth.

生物传感器

生物传感器是用于检测分析物的分析装置，其将生物组分与物理化学检测器组合。敏感的生物元件是生物衍生的材料或仿生组分，其与研究中的分析物相互作用（结合或识别）。生物敏感元件也可以通过生物工程产生。换能器或探测器元件（以物理化学方式工作;光学，压电，电化学等）将分析物与生物元素相互作用产生的信号转换成可以更容易测量的另一信号（即转换）并量化。具有相关电子器件或信号处理器的生物传感器读取器设备主要负责以用户友好的方式显示结果。

生物化学玻璃基板的制造商，包括监视器晶体，力传感器  和生物传感器。

氧化碲（TeO2）

简介1：二氧化碲（TeO2）是碲的固体氧化物。它以两种不同的形式遇到，黄色斜方晶矿物亚碲酸盐，β-TeO2和合成的，无色的四方（paratellurite），α-TeO2。关于反应化学的大部分信息都是在涉及paratellurite，α-TeO2的研究中获得的。 

CQT供应无机闪烁晶体材料，其包括硅酸钇l  和氧化碲。
简介2：TeO2晶体是一种具有高品质因数的声光材料。T，具有良好的双折射和旋光性能，并且传播速度沿[110]缓慢。如果在相同的清晰孔径下，使用TeO2单晶使得声光器件的分辨率可以增加数量级，响应速度快，驱动功率小，衍射效率高，性能稳定可靠等。