Acoustic apparatus and method of manufacturing
First Claim
1. A microphone assembly comprising:
- a base, the base having a bottom surface, the bottom surface being a single plane;
at least one side wall disposed on the base;
a cover coupled to the at least one side wall, wherein the base, the at least one side wall, and the cover form a cavity, the cavity having a MEMS device disposed therein;
a top port extending through the cover;
a first channel extending through the at least one side wall, the first channel arranged so as to communicate with the top port;
a bottom port extending through the base, wherein the MEMS device is disposed over the bottom port;
a second channel formed and extending along a bottom surface of the base, portions of the bottom surface of the base being exposed to the exterior of the assembly and not being in direct contact with the MEMS device, the second channel extending between and communicating with the first channel and the bottom port wherein the second channel is formed by a raised solder ring, the bottom surface of the base, and a mounting substrate, wherein the solder ring is disposed on the bottom surface, and wherein one side of the second channel is coextensive with the plane of the base and does not extend into the base;
such that sound energy received by the top port passes through the first channel, the second channel, and the bottom port and is received at the MEMS device.
1 Assignment
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Accused Products
Abstract
A microphone assembly comprising includes a base, at least one side wall, and a cover. The side wall is disposed on the base. The cover is coupled to the at least one side wall. The base, the side wall, and the cover form a cavity and the cavity has a MEMS device disposed therein. A top port extends through the cover and a first channel extends through the side wall. The first channel is arranged so as to communicate with the top port. A bottom port extends through the base. The MEMS device is disposed over the bottom port. A second channel is formed and extends along a bottom surface of the base. The second channel extends between and communicates with the first channel and the bottom port. Sound received by the top port is received at the MEMS device.
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Citations
12 Claims
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1. A microphone assembly comprising:
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a base, the base having a bottom surface, the bottom surface being a single plane; at least one side wall disposed on the base; a cover coupled to the at least one side wall, wherein the base, the at least one side wall, and the cover form a cavity, the cavity having a MEMS device disposed therein; a top port extending through the cover; a first channel extending through the at least one side wall, the first channel arranged so as to communicate with the top port; a bottom port extending through the base, wherein the MEMS device is disposed over the bottom port; a second channel formed and extending along a bottom surface of the base, portions of the bottom surface of the base being exposed to the exterior of the assembly and not being in direct contact with the MEMS device, the second channel extending between and communicating with the first channel and the bottom port wherein the second channel is formed by a raised solder ring, the bottom surface of the base, and a mounting substrate, wherein the solder ring is disposed on the bottom surface, and wherein one side of the second channel is coextensive with the plane of the base and does not extend into the base; such that sound energy received by the top port passes through the first channel, the second channel, and the bottom port and is received at the MEMS device. - View Dependent Claims (2, 3, 4)
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5. A multiple microphone assembly comprising:
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a base, the base having a bottom surface, the bottom surface being a single plane; at least one side wall disposed on the base; a cover coupled to the at least one side wall, wherein the base, the at least one wall, and the cover form a cavity, the cavity having a first MEMS device and a second MEMS device disposed therein; a top port extending through the cover; a first channel extending through the at least one side wall, the first channel arranged so as to communicate with the top port; a first bottom port extending through the base, wherein the first MEMS device is disposed over the first bottom port; a second channel formed and extending along a bottom surface of the base, portions of the bottom surface of the base being exposed to the exterior of the assembly and not being in direct contact with the MEMS device, the second channel extending between and communicating with the first channel and the first bottom port wherein the second channel is formed by a first raised solder ring, the bottom surface of the base, and a mounting substrate, wherein the first solder ring is disposed on the bottom surface, and wherein one side of the second channel is coextensive with the plane of the base and does not extend into the base; a second bottom port extending through the base, wherein the second MEMS device is disposed over the second bottom port; a third channel formed and extending along the bottom surface of the base, the third channel extending between and communicating with a fourth channel in a substrate and the second bottom port wherein the third channel is formed by a second raised solder ring, the bottom surface of the base, and a mounting substrate, wherein the second solder ring is disposed on the bottom surface, and wherein one side of the third channel is coextensive with the plane of the base and does not extend into the base; such that first sound energy received by the top port passes through the first channel, the second channel, and the bottom port and is received at the first MEMS device; and such that second sound energy received from the fourth channel in the substrate passes through the third channel and the second bottom port and is received at the second MEMS device. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification