CERAMIC LAMINATED RF DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a ceramic laminated RF device, which has satisfactory high frequency characteristics and is improved in reliability. SOLUTION: Concerning the ceramic laminated RF device having at least one or two high frequency filters, this device is provided with a low temperature sintered ceramic laminate, with which electrode patterns formed on the surface of and inside the low temperature sintered ceramic laminate are mutually connected through via holes, integrally sintered while laminating plural ceramic layers and a semiconductor bare chip packaged on the upper surface of the low temperature sintered ceramic laminate with face down and coated with sealing resins and at least one of high frequency filters is a laminated filter formed inside the low temperature sintered ceramic laminate while including one part of the electrode patterns.