Patent ID: 8358004
Filing Date: 2013-01-22
Classification: B81B,B81C,H01L,H04R,Y10T

Abstract:
1. A surface mount MEMS microphone package comprising: a planar substrate having a top surface and a bottom surface, the top surface having a peripheral portion and a central portion; a planar cover having a peripheral portion and a central portion; a planar side portion having side walls on the perimeter of the side portion and a window on the interior of the side portion; a package housing formed by the mechanical attachment of the peripheral portion of the lower surface of the cover to the top of the side walls of the side portion, and by the mechanical attachment of the bottom of the side walls of the side portion to the peripheral portion of the of the upper surface of the substrate; a MEMS microphone die mechanically attached to the central portion of the top surface of the substrate and physically protected by the housing; a plurality of solder pads on the bottom surface of the substrate, the plurality of solder pads configured to mechanically attach and electrically connect the package to the surface of an external printed circuit board using a solder reflow process; an acoustic port in the substrate, the acoustic port positioned directly under the MEMS microphone die and configured to allow the passage of sound waves from the exterior of the package into the interior of the package.