Two part external shield for electromagnetic interference reduction
AssigneeSTMicroelectronics International N.V.
InventorsJack Totten, William Halliday
Life of this patent
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Abstract
A two-part external metal shield for electromagnetic interference reduction that reduces vulnerability of a shielded sensor is provided. An example electromagnetic shield for a sensor includes: a first portion defining a first part of an interfacing profile and one or more tabs; a second portion defining a second part of an interfacing profile; where the first portion and the second portion combine to form a cavity into which the sensor is received, where the one or more tabs extends into the cavity along a first axis, and where the first part of the interfacing profile is secured to the second part of the interfacing profile along a second axis perpendicular to the first axis.
Claims20
An electronic device comprising:
- a sensor substrate;
- a sensor;
- an electromagnetic shield defining a cavity within which the sensor is received;
- a sensor cap attached to the sensor substrate;
- wherein the electromagnetic shield comprises a first portion and a second portion, wherein the first portion comprises one or more tabs extending into the cavity, wherein the first portion comprises a first part of an interfacing profile, the second portion comprises a second part of the interfacing profile, and wherein the first portion is secured to the second portion in response to the first part of the interfacing profile engaging with the second part of the interfacing profile, and
- at least one connecting tab defined on the sensor substrate, wherein at least one recess defined within the sensor cap provides access to the at least one connecting tab, and wherein the one or more tabs of the electromagnetic shield engages the at least one connecting tab within the at least one recess.
A electromagnetic shield for a sensor comprising:
- a first portion defining a first part of an interfacing profile and one or more tabs;
- and
- a second portion defining a second part of the interfacing profile;
- wherein the first portion and the second portion combine to form a cavity into which the sensor is received, wherein the one or more tabs extends into the cavity along a first axis, and wherein the first part of the interfacing profile is secured to the second part of the interfacing profile along a second axis perpendicular to the first axis,
- wherein the first portion defines a first aperture for a receiving element of a time-of-flight sensor, and wherein the second portion defines a second aperture for a transmitting element of the time-of-flight sensor.
An electronic device comprising:
- a sensor substrate;
- a sensor disposed on a first side of the sensor substrate;
- and
- an electromagnetic shield covering over at least a portion of the first side of the sensor substrate, the electromagnetic shield defining a cavity within which the sensor is received;
- wherein the electromagnetic shield comprises a first portion and a second portion, wherein the second portion comprises a securing tab extending into the cavity, wherein the securing tab extends into the cavity toward the first side of the sensor substrate, orthogonal to a plane of the sensor substrate, wherein the first portion comprises a first part of an interfacing profile, the second portion comprises a second part of the interfacing profile, and wherein the first portion is secured to the second portion in response to the first part of the interfacing profile engaging with the second part of the interfacing profile.
Dependencies are inferred from the claim text.