Patent ID: 8849362

Claim:
A communication module, comprising: a circuit substrate having (a) a first high-frequency processing section that processes high-frequency signals related to mobile phone communication, (b) a system section having a baseband processing area that processes baseband signals related to mobile phone communication and an application processing area that processes various types of mobile phone application operations, and (c) a power circuit section; a sealing member formed on an entire surface of a main surface of the circuit substrate, the sealing member covering electronic components mounted on said main surface; a shield layer that is conductive and formed on a surface of the sealing member; and a first shield wall that fills a groove formed from the surface of the sealing member toward the main surface of the circuit substrate, the groove demarcating a mounting area of either one or both of the system section and the power circuit section and a mounting area of the first high-frequency processing section, the first shield wall being connected to the shield layer, wherein the circuit substrate is made of conductive layers and insulating layers laminated together, and has a core layer that is a conductive layer, the core layer being thicker than other conductive layers and functioning as a ground, and wherein one or more electronic components constituting a part of at least one of the first high-frequency processing section, system section, and power circuit section are each arranged in a through-hole or a recessed portion formed in the core layer of the circuit substrate.