Patent ID: 9653409
Date: 2017-05-16
CPC Classifications: H01L,H01Q

Claim:
1. A radio-frequency module comprising: a packaging substrate; a ground plane disposed below a first surface of the packaging substrate; a plurality of shielding components disposed relative to one or more radio-frequency components mounted on the first surface, the shielding components electrically connected to the ground plane; an overmold structure formed over the surface and dimensioned to substantially encapsulate the one or more radio-frequency components and the shielding components; and a conductive paint layer disposed on an upper surface of the overmold structure so that the conductive paint layer, the shielding components, and the ground plane are electrically connected to provide radio-frequency shielding for a region associated with the one or more radio-frequency components, the conductive paint layer including a mixture of one or more silver flakes chosen from the group consisting of elemental silver, silver oxide, silver thiocyanate, silver cyanide, silver cyanate, silver carbonate, silver nitrate, silver nitrite, silver sulfate, silver phosphate, silver perchlorate, silver tetrafluoro borate, silver acetylacetonate, silver acetate, silver lactate, and silver oxalate, and an organic solvent that includes acetone and does not dissolve the silver flakes.