Microphone Port With Foreign Material Ingress Protection
First Claim
1. Apparatus, comprising:
- a microphone having a sound port; and
a flexible printed circuit having microperforations that serve as sound passageways for sound passing to the microphone, wherein the microphone is mounted on the flexible printed circuit so that the sound port is aligned with the microperforations.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic device may be provided with a microphone in a microphone port. A shield may cover a microelectromechanical systems microphone device on a microphone substrate. An opening in the microphone substrate may form a sound port for the microphone. The microphone port may be formed by perforations in the microphone substrate or other layers such as a flexible printed circuit layer, a sheet metal layer, a layer of adhesive, a flexible polymer carrier layer in an adhesive tape, or an electronic device housing. The perforations may be sufficiently small to help resist the intrusions of foreign material such as liquid and dirt into the sound port of the microphone. Larger openings may be formed in other structures such as an electronic device housing. The larger openings may serve as sound passageways for the microphone port while being sufficiently large to resist clogging.
-
Citations
23 Claims
-
1. Apparatus, comprising:
-
a microphone having a sound port; and a flexible printed circuit having microperforations that serve as sound passageways for sound passing to the microphone, wherein the microphone is mounted on the flexible printed circuit so that the sound port is aligned with the microperforations. - View Dependent Claims (2, 3, 4, 5)
-
-
6. Apparatus, comprising:
-
a microphone substrate having a plurality of microperforations; a microelectromechanical systems microphone device mounted on the substrate in alignment with the microperforations; an integrated circuit coupled to the microelectromechanical systems microphone device; and a shield that is soldered to the microphone substrate and that covers the integrated circuit and the microelectromechanical systems microphone device. - View Dependent Claims (7, 8, 9)
-
-
10. Apparatus, comprising:
-
an electronic device housing having opposing inner and outer surfaces; a first plurality of openings each of which passes part way from the inner surface into the electronic device housing; and a second plurality of openings each of which has a larger diameter than the openings of the first plurality of openings and each of which passes part way from the outer surface into the electronic device housing, wherein the second plurality of openings joins with the first plurality of openings to form microphone port sound passageways through the electronic device housing. - View Dependent Claims (11, 12, 13)
-
-
14. Apparatus, comprising:
-
a microphone having a sound port; a flexible printed circuit to which the microphone is mounted, wherein the flexible printed circuit has an opening aligned with the sound port; a planar member having a plurality of perforations aligned with the opening in the flexible printed circuit. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. Apparatus, comprising:
-
a microphone, having a sound port; a flexible printed circuit having an opening aligned with the sound port; and adhesive tape attached to the flexible printed circuit, wherein the adhesive tape has a flexible polymer carrier layer with a plurality of perforations aligned with the opening in the flexible printed circuit. - View Dependent Claims (21, 22, 23)
-
Specification