Packaged device exposed to environmental air and liquids and manufacturing method thereof
First Claim
Patent Images
1. A packaged device, comprising:
- a chip; and
a package body delimiting a chamber, at least a portion of the chip being located in the chamber, the package body including a plurality of holes that enable passage of air between an external environment and the chamber, the package body including an outer surface having a surface roughness that is configured to block passage of liquids through the plurality of holes.
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Accused Products
Abstract
A packaged device, wherein at least one sensitive portion of a chip is enclosed in a chamber formed by a package. The package has an air-permeable area having a plurality of holes and a liquid-repellent structure so as to enable passage of air between an external environment and the chamber and block the passage of liquids.
16 Citations
22 Claims
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1. A packaged device, comprising:
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a chip; and a package body delimiting a chamber, at least a portion of the chip being located in the chamber, the package body including a plurality of holes that enable passage of air between an external environment and the chamber, the package body including an outer surface having a surface roughness that is configured to block passage of liquids through the plurality of holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for manufacturing a packaged device, the method comprising:
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forming a package body delimiting a chamber; enclosing at least a portion of a chip in the package body with the chamber being located over a sensitive portion of the chip; forming a plurality of holes through a surface of the package body, the plurality of holes being configured to allow air pass between an external environment and the chamber; and forming a rough structure having microreliefs on the surface of the package body, the rough structure having microreliefs being configured to prevent fluid from the external environment from entering the chamber. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A packaged device, comprising:
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a chip that includes a membrane; a package body having an inner chamber, a portion of the chip being located in the chamber of the package body, the package body including a structure having an inner surface located proximate the inner chamber and an outer surface, the structure including a plurality of holes that extend from the outer surface to the inner surface, the plurality of holes being configured to allow air to flow between an environment outside of the package body and the inner chamber, the outer surface of the structure having a roughened surface that is configured to prevent water droplets from being provided to the inner chamber. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification