Ultra-thin multi-layer packaging
First Claim
Patent Images
1. An implantable medical device comprising:
- a plurality of components on a substrate having at least a first three-dimensional portion; and
a biocompatible multi-layer coating applied by vapour deposition to conform to and sealingly cover at least the first portion of the components and the substrate, the coating having been applied in at least two sets, each set having at least first, second and third layers; and
at least one of the first, second and third layers consisting essentially of a polymer and at least one of the other two layers of the set consisting essentially of inorganic material such that each layer differs in at least one diffusion barrier property from the other layers in the set and adds to an overall barrier effect of the coating.
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Abstract
An implantable medical device including a plurality of components on a substrate, and a biocompatible multi-layer coating applied by vapor deposition to conform to and sealingly cover at least a portion of the components and/or the substrate. The coating is applied in at least two sets, each set having first, second and third layers. At least one of the first, second and third layers consist essentially of a polymer such as parylene and at least one of the other two layers of the set consist essentially of inorganic material such that each layer differs in at least one diffusion barrier property from the other layers in the set and adds to an overall barrier effect of the coating.
67 Citations
13 Claims
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1. An implantable medical device comprising:
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a plurality of components on a substrate having at least a first three-dimensional portion; and a biocompatible multi-layer coating applied by vapour deposition to conform to and sealingly cover at least the first portion of the components and the substrate, the coating having been applied in at least two sets, each set having at least first, second and third layers; and at least one of the first, second and third layers consisting essentially of a polymer and at least one of the other two layers of the set consisting essentially of inorganic material such that each layer differs in at least one diffusion barrier property from the other layers in the set and adds to an overall barrier effect of the coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13)
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11. An implantable medical device comprising:
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a plurality of components on a substrate having at least a first three-dimensional portion; and a biocompatible multi-layer coating applied by vapour deposition to conform to and sealingly cover at least the first portion of the components and the substrate, the coating having been applied in at least two sets, each set having essentially first, second and third layers; at least one of the first, second and third layers consisting essentially of a parylene and at least one of the other two layers of the set consisting essentially of inorganic material; and wherein a diffusion barrier property through each layer differs from that of the other layers in the set and adds to an overall barrier effect of the coating.
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Specification