US 11,903,120 B2
Radio frequency module
Tadashi Nomura, Kyoto (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed on Aug. 11, 2020, as Appl. No. 16/990,109.
Application 16/990,109 is a continuation of application No. PCT/JP2019/004925, filed on Feb. 13, 2019.
Claims priority of application No. 2018-024758 (JP), filed on Feb. 15, 2018.
Prior Publication US 2020/0375022 A1, Nov. 26, 2020
Int. Cl. H05K 1/02 (2006.01); H05K 3/28 (2006.01); H01L 23/28 (2006.01); H01L 25/04 (2023.01); H01L 25/18 (2023.01); H01L 23/00 (2006.01)
CPC H05K 1/0218 (2013.01) [H01L 23/00 (2013.01); H01L 23/28 (2013.01); H01L 25/04 (2013.01); H01L 25/18 (2013.01); H05K 1/0243 (2013.01); H05K 3/284 (2013.01); H05K 2201/0715 (2013.01); H05K 2201/09936 (2013.01); H05K 2201/10522 (2013.01); H05K 2203/107 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A radio frequency module comprising:
a wiring board;
a component on one principal surface of the wiring board;
a sealing resin layer that has a contact surface being in contact with the one principal surface of the wiring board, an opposite surface opposite to the contact surface, and side surfaces connecting end edges of the contact surface with end edges of the opposite surface, and that seals the component;
a mesh sheet on the opposite surface of the sealing resin layer, the mesh sheet comprising a plurality of linear members intersecting with one another in a mesh form; and
a shield film that covers at least the side surfaces of the sealing resin layer and the mesh sheet on the opposite surface of the sealing resin layer,
wherein an embedded portion of the mesh sheet is embedded in the sealing resin layer in a thickness direction of the mesh sheet,
wherein an exposed portion of the plurality of linear members of the mesh sheet is exposed from the opposite surface of the sealing resin layer, and
wherein the exposed portion contacts the shield film.