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US 12,745,669 B2Granted
Protective coating on an edge of a glass core
AssigneeIntel Corporation
InventorsRahul N. Manepalli, Srinivas V. Pietambaram, Ravindra Tanikella, Sameer Paital, Gang Duan
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Abstract
Embodiments described herein may be related to apparatuses, processes, and techniques directed to a protective coating for an edge of a glass layer, in particular a glass core within a substrate of a package, where the protective coating serves to protect the edge of the glass core and fill in cracks at the edges of the glass. This protective coating will decrease cracking during stresses applied to the glass layer during manufacturing or operation. Other embodiments may be described and/or claimed.
Claims8
A substrate comprising:
- a glass core with a first side and a second side opposite the first side, the glass core having a conductive via therein, the conductive via extending from the first side to the second side;
- a buildup layer coupled with the first side of the glass core or with the second side of the glass core, the buildup layer comprising a plurality of dielectric layers and a plurality of metal layers, wherein one of the plurality of metal layers of the buildup layer is electrically coupled to the conductive via in the glass core;
- a protective coating along an entirety of a surface of an edge of the glass core between the first side and the second side and along an entirety of a surface of an edge of the buildup layer proximate to the edge of the glass core, wherein the protective coating includes a water soluble emulsion resin, and wherein the protective coating has a thickness of between 0.1 micrometers and 1,000 micrometers;
- and
- a layer comprising a die surrounded by a mold compound, wherein the layer is over the glass core and the buildup layer, and wherein the protective coating is not along an edge of the layer.
2 more elements
A package comprising:
- a substrate that includes:
- a glass core with a first side and a second side opposite the first side, the glass core having a conductive via therein, the conductive via extending from the first side to the second side;
- a first buildup layer formed on the first side of the glass core, the first buildup layer comprising a first plurality of dielectric layers and a first plurality of metal layers, wherein one of the first plurality of metal layers of the first buildup layer is electrically coupled to the conductive via in the glass core;
- a second buildup layer formed on the second side of the glass core, the second buildup layer comprising a second plurality of dielectric layers and a second plurality of metal layers, wherein one of the second plurality of metal layers of the second buildup layer is electrically coupled to the conductive via in the glass core;
- a protective coating along an entirety of a surface of an edge of the glass core between the first side of the glass core and the second side of the glass core, along an entirety of a surface of an edge of the first buildup layer proximate to the edge of the glass core, and along an entirety of a surface of an edge of the second buildup layer proximate to the edge of the glass core, wherein
- the protective coating includes a water soluble emulsion resin, and the protective coating has a thickness of between 0.1 micrometers and 1,000 micrometers;
- and
- a layer comprising a die surrounded by a mold compound, wherein the layer is over the glass core and the first buildup layer, and wherein the protective coating is not along an edge of the layer.
5 more elements
A method comprising:
- forming a glass core with a first side and a second side opposite the first side, the glass core having a conductive via therein, the conductive via extending from the first side to the second side;
- coupling a buildup layer with the first side of the glass core or with the second side of the glass core, the buildup layer comprising a plurality of dielectric layers and a plurality of metal layers, wherein one of the plurality of metal layers of the buildup layer is electrically coupled to the conductive via in the glass core;
- applying a protective coating to an entirety of a surface of an edge of the glass core between the first side and the second side and to an entirety of a surface of an edge of the buildup layer proximate to the edge of the glass core, wherein the protective coating includes a water soluble emulsion resin, and wherein the protective coating has a thickness of between 0.1 micrometers and 1,000 micrometers;
- and
- forming a layer comprising a die surrounded by a mold compound, wherein the layer is over the glass core and the buildup layer, and wherein the protective coating is not along an edge of the layer.
2 more elements
Dependencies are inferred from the claim text.