Patent ID: 7409190
Filing Date: 2008-08-05
Classification: H01L,H03B,H05K

Abstract:
1. A radio-frequency circuit module comprising: a multilayer substrate having a front face and a rear face; a radio-frequency (RF) circuit, part of which is constituted by a radio-frequency integrated circuit disposed on the front face of the multilayer substrate; and a crystal-oscillator circuit, part of which is constituted by a crystal oscillator disposed in a cavity provided in the rear face of the multilayer substrate, wherein the crystal oscillator is disposed in a first cavity provided in the rear face of the multilayer substrate, said radio-frequency circuit module further comprising a memory circuit which is constituted by a memory element disposed in a second cavity provided in the rear face of the multilayer substrate, wherein the RF circuit comprises a signal processing section, and the crystal-oscillator circuit comprises an adjusting section, said signal processing section and said adjusting section being integrated in a radio-frequency integrated circuit (RF-IC) disposed on the front face of the multilayer substrate.