Taijing Technology Has Successfully Developed a Small Resistance, Small-Sized Micro Tuning Fork Product
Recently, Taijing Technology has completed product design and experimental verification of a small resistance and small-sized micro tuning fork crystal using photolithography micro nano processing technology. The performance indicators are excellent and it is preparing for mass production. This new product also adopts the company's mature quartz MEMS lithography technology, which improves the manufacturing accuracy of quartz chips, making them more excellent in high temperature resistance, earthquake resistance, and reliability. Widely used in instruments that require low power consumption, high clock accuracy, real-time clock display, and timed processing of certain operations, such as electricity meters, water meters, gas meters, and high-precision RTC with high-precision time requirements.
After testing, the indicators of this product meet the following requirements:
| Parameter | Specification | Test Conditions |
| Nominal Frequency Freq | 32.768 kHz | |
| Frequency Error ∆f | ±20 ppm | 25℃ |
| Vertex Temperature Tp | 25℃±5 ℃ | -40℃-85℃ |
| Quadratic Coefficient β | -0.035±0.002 ppm/℃² | Five point test data fitting |
| Resonant Resistance Rr | 45kΩ MAX | |
Normally, the resonant resistance of a crystal oscillator has a significant impact on its performance and stability. When the resonant resistance is too large, it may cause the frequency of crystal oscillation to deviate from the design value, thereby affecting the stability and performance of the system. In more serious cases, it may cause the crystal oscillator to stop oscillating, leading to system failure. Therefore, a lower resonant resistance is of great help in improving the overall stability of the crystal oscillator.
Compared with ordinary crystals, this product optimizes the crystal etching process and greatly reduces the resonant resistance value of the product. The average resonant resistance of this product at room temperature is less than 30 k Ω, and the maximum resistance over a wide temperature range is less than 45 k Ω, while the average resistance of a regular crystal oscillator at room temperature is around 45 k Ω.
Comparison chart of temperature frequency characteristic curves:
KHz lithography products involve complex processes and multiple disciplines, with high technical barriers, difficult research and development, and high process barriers. In the future, for small-sized, ultra-high frequency MHz products and high-precision active products, photolithography technology is a necessary path. The company continues to enhance its research and development innovation capabilities, design capabilities, and market matching capabilities in MHz and kHz related products, gradually forming a competitive advantage and becoming the preferred brand for the localization of core electronic devices. It has also gained international industry quality recognition, and its product brand awareness and core competitive advantages have been comprehensively improved.
