WLSC Wire-Bondable Low-Profile Si Capacitors

Murata WLSC Wire-Bondable Vertical Low-Profile (100µm thick) Silicon Capacitors target RF High Power applications for wireless communication (5G, etc.), radar, and data broadcasting systems. These capacitors are suitable for DC decoupling, matching network, and harmonic/noise-filtering functions. They are developed with a semiconductor process that enables the integration of high capacitance density from 1.55nF/mm² to 250nF/mm² (with a breakdown voltage of 450V to 11V, respectively). The Murata WLSC capacitors are cured at a high temperature (above +900°C), generating a highly pure oxide. This technology provides capacitor stability over the full operating DC voltage and temperature range. In addition, the intrinsic properties of the silicon show a low dielectric absorption and a low to zero piezoelectric effect, resulting in no memory effect.