Methods for hermetic sealing of post media-filled MEMS package
First Claim
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1. A method for hermetically sealing a post media-filled micro-electro-mechanical system (MEMS) package, comprising the steps of:
- filling a MEMS package through a fill port with at least one liquid medium;
plugging the fill port in the MEMS package containing the at least one liquid medium with a sealant; and
depositing a metal cap in a specific pattern over the sealant to hermetically seal the fill port, wherein the metal cap is deposited through a shadow mask defining a specific pattern, at least a portion of the metal cap extending into the fill port, including depositing a metal film in a specific pattern on top of the sealant using physical vapor deposition through the shadow mask.
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Abstract
This invention provides a system and method for hermetically sealing a post media-filled package with a metal cap. The method can include the operation of filling a MEMS package through a fill port with at least one medium. A further operation can be plugging the fill port in the MEMS package with a sealant. Another operation can include depositing a metal cap over the sealant to hermetically seal the fill port.
42 Citations
14 Claims
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1. A method for hermetically sealing a post media-filled micro-electro-mechanical system (MEMS) package, comprising the steps of:
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filling a MEMS package through a fill port with at least one liquid medium; plugging the fill port in the MEMS package containing the at least one liquid medium with a sealant; and depositing a metal cap in a specific pattern over the sealant to hermetically seal the fill port, wherein the metal cap is deposited through a shadow mask defining a specific pattern, at least a portion of the metal cap extending into the fill port, including depositing a metal film in a specific pattern on top of the sealant using physical vapor deposition through the shadow mask. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for hermetically sealing a post media-filled micro-electro-mechanical system (MEMS) package, comprising the steps of:
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filling a MEMS package through a fill port with at least one liquid medium; plugging the fill port in the MEMS package containing the at least one liquid medium with a sealant; and depositing a metal cap in a specific pattern over the sealant to hermetically seal the fill port, wherein the metal cap is deposited through a shadow mask defining a specific pattern, at least a portion of the metal cap extending into the fill port, including depositing a metal film in a specific pattern on top of the sealant using an electron beam through the shadow mask.
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Specification