US Patent Issued to QuantumZ on Sept. 16 for "3D filter and fabrication method thereof" (Taiwanese Inventors)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,084, issued on Sept. 16, was assigned to QuantumZ Inc. (Kaohsiung, Taiwan).

"3D filter and fabrication method thereof" was invented by Gang-Lin Zhang (Kaohsiung, Taiwan), Meng-Hua Tsai (Tainan, Taiwan), Weiting Lee (Kaohsiung, Taiwan) and Sin-Siang Wang (Kaohsiung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional (3D) filter and a fabrication method thereof are provided. The 3D filter includes a circuit board, a first ring resonator, a second ring resonator and a via structure. The circuit board includes a first circuit layer, a second circuit layer and a third circuit layer. The third circuit layer is located between the f...