SEMICONDUCTOR DEVICE, HIGH-FREQUENCY TRANSMISSION DEVICE, AND SEMICONDUCTOR MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device capable of preventing substrate loss when a high-frequency signal is passed through a capacitor, a high-frequency transmission device, and a semiconductor manufacturing method.SOLUTION: A semiconductor device 1 includes: a silicon substrate 3; a shield 4 disposed above the silicon substrate 3 and having a conductive material; capacitive electrodes 5 and 6 disposed above the shield 4; and at least one columnar member 7 interposed between the shield 4 and the silicon substrate 3, and having a conductive material.