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US 12,660,360 B2Granted
Optical device
AssigneeAdvanced Semiconductor Engineering, Inc.
InventorYing-Chung Chen
Life of this patent
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Abstract
An optical device includes an emitter, a receiver, a transparent element, and a block layer. The transparent element is disposed over the emitter and the receiver. The transparent element defines a recess between the emitter and the receiver. The block layer is conformally disposed over the transparent element and the recess.
Claims16
An optical device, comprising:
- an emitter;
- a receiver;
- a transparent element disposed over the emitter and the receiver, wherein the transparent element defines a first recess between the emitter and the receiver;
- and
- a block layer conformally disposed over the transparent element and the first recess,
- wherein the block layer includes a first upper surface and a lateral surface connected to the first upper surface, and wherein the lateral surface defines an aperture exposing the emitter, and the lateral surface contacts the transparent element, a surface roughness of the first upper surface of the block layer is greater than a surface roughness of a second upper surface of the block layer, and the second upper surface is at an elevation different from an elevation of the first upper surface, and a surface roughness of a top surface of the transparent element is greater than a surface roughness of one of other surfaces of the transparent element.
3 more elements
An optical device, comprising:
- a carrier;
- an electronic component disposed over the carrier;
- a transparent element covering the electronic component;
- and
- a block layer defining a space accommodating the electronic component,
- wherein the block layer includes a first upper surface, a second upper surface lower than the first upper surface and spaced apart from the transparent element, and a first lateral surface extending between the first upper surface and the second upper surface, and wherein the first lateral surface and the first upper surface collectively define a first portion protruding from the second upper surface of the block layer, and the first portion of the block layer defines an aperture exposing the electronic component, the transparent element is disposed within the space, the transparent element includes a protruding portion, the first upper surface of the first portion is substantially level with a top surface of the protruding portion of the transparent element, a profile of the aperture of the block layer is defined by the protruding portion of the transparent element, and wherein the first upper surface of the first portion and the top surface of the protruding portion are formed by grinding concurrently.
3 more elements
An optical device, comprising:
- a carrier;
- a first electronic component disposed over the carrier;
- a second electronic component disposed over the carrier;
- a transparent element covering the first electronic component;
- a block layer separating the first electronic component from the second electronic component, wherein the block layer defines a recess between the first electronic component and the second electronic component,
- and wherein the block layer includes a first upper surface, a second upper surface at an elevation, with respect to the carrier, lower than that of the first upper surface, and a first lateral surface extending between the first upper surface and the second upper surface, and wherein the first upper surface is substantially aligned with an upper surface of the transparent element;
- and
- an optical element disposed over an aperture defined by the first upper surface and a second lateral surface, opposite to the first lateral surface, of the block layer, wherein the optical element is configured to filter a specific wavelength of a light, and a width of the optical element is greater than a width of the aperture.
5 more elements
Dependencies are inferred from the claim text.