3results about How to "Improve high frequency characteristics" patented technology

This invention discloses a perforated chip capacitor and its manufacturing method. The capacitor uses an integral aluminum plate with multiple through holes forming a perforated structure, and at least some of the through holes penetrate the aluminum plate. An oxide layer is formed on the entire surface of the aluminum plate, including the inner surface of the through holes. The manufacturing method includes: welding an anode lead plate to the aluminum plate; laser drilling the aluminum plate to form through holes; acid etching to increase the specific surface area; anodizing to form an oxide layer; and sequentially forming a polymer layer, a graphite layer, and a silver paste layer. This invention, through its integrated porous aluminum plate structure, replaces the traditional multi-layer laminated structure, effectively improving the problems of high leakage current, poor heat dissipation, and insufficient vibration resistance of multilayer capacitors. It also achieves high specific capacitance and low ESR, significantly improving the overall performance and reliability of the capacitor.

The application discloses an electric connector and a connector combination, the electric connector comprising: a plurality of first conductive terminals arranged along the left-right direction, the first conductive terminals having a first contact part, a first connecting part and a first lead-in part connected in sequence, the first contact part being located in front of the first lead-in part, the plurality of first conductive terminals comprising a first differential signal pair, a first ground terminal and a second differential signal pair arranged in sequence, the first contact part of the first differential signal pair and the first contact part of the second differential signal pair being arranged staggered along the front-back direction, the first contact part of the first ground terminal being between the first contact parts of the two, and the first lead-in part of the first differential signal pair and the first lead-in part of the second differential signal pair being arranged staggered along the front-back direction, the first lead-in part of the first ground terminal being between the first lead-in parts of the two, the distance between the signal pairs being enlarged, thereby reducing crosstalk and improving high frequency.

This invention discloses a frequency tuning method and resonator for a quartz crystal tuning fork oscillator. The method includes: a coating step: cleaning the quartz crystal blank and depositing a base metal layer after cleaning; a coarse tuning step: repeatedly printing conductive paste in the tuning area of ​​the tuning fork arm and curing it to form a printed tuning layer, adjusting the frequency of the tuning fork oscillator to a preset frequency range; and a fine tuning step: performing an excitation test to obtain the current frequency F1, using a laser to perform targeted ablation on the printed tuning layer, stopping when the frequency reaches the target value F2, thus completing the frequency tuning of the quartz crystal tuning fork oscillator. This invention adopts a layered coating architecture, abandoning the full vacuum process, and using a stacked structure of "one-time vacuum coating (base conductive / reflective layer) + two-time printed coating (tuning weight-adding layer)," which solves the problem of material waste and achieves nanometer-level precise frequency locking.