Patent ID: 7557431
Filing Date: 2009-07-07
Classification: H01L,H05K

Abstract:
1. A broadband surface mounting package, comprising: a housing having a substantially flat bottom wall defining a predetermined perimeter and forming substantially parallel first and second surfaces, and wall means substantially normal to said bottom wall and extending from said bottom wall about said predetermined perimeter to form an enclosure having an top opening opposite said bottom wall to provide access to an interior compartment or cavity dimensioned to receive at least one microwave component, said second surface being arranged to physically and electrically contact a printed circuit board (PCB) for selective attachment to a plurality of conductive lands or pads on the PCB, at least one cylindrical hole in said enclosure that defines an axis substantially parallel to said bottom wall and has a dimension in a direction generally transverse to said bottom wall to extend from said second surface to at least said first surface, and has an axial length generally parallel to said bottom wall sufficient to provide a through hole in said wall means and a gap within said bottom wall proximate to and inwardly from said wall means; a J-shaped conductive element having a first portion within said at least one cylindrical hole and extending along a direction parallel to said axis and having a contact surface substantially coextensive with said second surface, and a second portion that projects at least to said first surface and having a connection surface exposed within said cavity to which an electrical connection can be made, sealing means for hermetically sealing the space between a cylindrical wall forming said at least one cylindrical hole and an associated J-shaped conductive element received therein; power conductor means for hermetically introducing power into said compartment and to electrical component(s) positioned therein; connecting means for connecting said power conductor means to internal microwave component(s) and for connecting a microwave signal interface on microwave component(s) to said connecting surface of said J-shaped conductive element; and a cover for selectively closing and hermetically sealing said top opening of said enclosure after the microwave component(s) has been secured within said compartment and connections by said connecting means have been made, said J-shaped conductive element being configured to promote impedance matching and to reduce microwave signal losses when said enclosure is surface mounted on a PCB to result in electrical contact between a conductive land or pad on the PCB and said connection surface on said J-shaped conductive element and microwave signals are introduced to the internally-mounted microwave component(s) through said at least one hermetically sealed hole in said enclosure.