Microphone system with non-orthogonally mounted microphone die

摘要

A microphone system has a lid coupled with a base to form a package with an interior chamber. The package has a top, a bottom, and a plurality of sides, and at least one of those sides has a portion with a substantially planar surface forming an opening for receiving an acoustic signal. The microphone system also has a microphone die positioned within the interior chamber. The microphone is positioned at a non-orthogonal, non-zero angle with regard to the opening in the at least one side.

主权项

1. A microphone system comprising:
a base having a primary portion and a ramped portion, the ramped portion forming an obtuse angle “OB” with the primary portion and having a channel; a lid coupled with the base to form a package with an interior chamber, the package having a top, a bottom, and a plurality of sides;
a microphone die positioned within the interior chamber, and being secured to the ramped portion;at least one of the sides having a portion with a substantially planar surface forming an opening for receiving an acoustic signal, the channel being acoustically coupled with the opening and guiding the acoustic signal therethrough, the acoustic signal making contact with the microphone die orthogonally; the microphone die being positioned at a non-orthogonal, non-zero angle with regard to the opening in the at least one side.