Patent ID: 7764513

Claim:
A high frequency wave tuner module, comprising: a circuit board having an approximately rectangular shape, which is made of ceramic material; and a shield cover to shield an interfering wave by covering a circuit part mounted on a board surface of the circuit board, wherein the shield cover is formed by bending a metallic thin plate into a case shape, wherein the shield cover includes four corner part side walls which contact the circuit board at four corner positions of the circuit board and four edge part side walls which extend in a thickness direction of the circuit board, and wherein a position of the shield cover in a height direction with respect to the board surface is determined by the four corner part side walls of the shield cover contacting the board surface at the four corner positions of the circuit board, and a position of the shield cover on the board surface with respect to the circuit board is determined by engaging (i) the four edge part side walls of the shield cover which extend in the thickness direction of the circuit board, with (ii) end surfaces of the circuit board which correspond to the four edge part side walls, such that the four edge part side walls contact the end surfaces of the circuit board only from beside the circuit board.