Package including an underfill material in a portion of an area between the package and a substrate or another package
First Claim
Patent Images
1. An apparatus, comprising:
- a first substrate having a first surface that defines a first plane;
a second substrate having a second surface facing the first surface, wherein the second surface defines a second plane;
an underfill material coupling the second substrate to the first substrate, wherein the underfill material contacts the first surface and the second surface, wherein all of the underfill material is located between the first and second planes and substantially none of the underfill material is located outside of a gap between the first and second substrates, and wherein the underfill material extends along an entire periphery of the second substrate to define a closed chamber between the first and second surface; and
a plurality of solder joints located in the gap, wherein each of the solder joints electrically couples the second substrate to the first substrate, wherein the plurality of solder joints includes a pair of first solder joints each physically contacted by the underfill material such that the underfill material occupies an entire space between the first solder joints and at least a second solder joint is located in the closed chamber and has substantially no physical contact with the underfill material.
7 Assignments
0 Petitions
Accused Products
Abstract
Embodiments include but are not limited to apparatuses and systems including semiconductor packages, e.g. memory packages, having a substrate or a first package, and a second package coupled to the substrate or the first package, wherein the second package includes at least one die and an underfill material disposed in a portion, but not an entirety, of an area between the package and the substrate or the first package. Other embodiments may be described and claimed.
16 Citations
29 Claims
-
1. An apparatus, comprising:
-
a first substrate having a first surface that defines a first plane; a second substrate having a second surface facing the first surface, wherein the second surface defines a second plane; an underfill material coupling the second substrate to the first substrate, wherein the underfill material contacts the first surface and the second surface, wherein all of the underfill material is located between the first and second planes and substantially none of the underfill material is located outside of a gap between the first and second substrates, and wherein the underfill material extends along an entire periphery of the second substrate to define a closed chamber between the first and second surface; and a plurality of solder joints located in the gap, wherein each of the solder joints electrically couples the second substrate to the first substrate, wherein the plurality of solder joints includes a pair of first solder joints each physically contacted by the underfill material such that the underfill material occupies an entire space between the first solder joints and at least a second solder joint is located in the closed chamber and has substantially no physical contact with the underfill material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 29)
-
-
13. An apparatus, comprising:
-
a first package; a second package; an underfill material coupling a second surface of the second package to a first surface of the first package, wherein substantially all of the underfill material is located between a first plane defined by the first surface of the first package and a second plane defined by the second surface of the second package and substantially none of the underfill material is located outside of a gap defined by the first and second packages; and a plurality of joints electrically coupling the first package to the second package, wherein the underfill material encapsulates each of the joints in a first group such that the underfill material fills an entire space between at least two of the joints in the first group, and wherein at least one of the joints in a second group is located in a closed chamber defined by the underfill material, the first package, and the second package and has substantially no physical contact with the underfill material. - View Dependent Claims (14, 15, 16, 26, 27, 28)
-
-
17. A method comprising:
-
depositing an underfill material on an electronic device such that the underfill material contacts first solder bumps and defines uncovered regions of the first solder bumps and the underfill material is spaced apart from second solder bumps; after depositing the underfill material on the electronic device, moving the uncovered regions of the first solder bumps into contact with a substrate or a package; and coupling the electronic device to the substrate or the package using the underfill material such that the first and second solder bumps and the underfill material are disposed between the electronic device and the substrate or the package, wherein the underfill material physically contacts the first solder bumps and has substantially no contact with the second solder bumps that electrically couple the electronic device to the substrate or the package, wherein the underfill material contacts a surface of the substrate or the package and a surface of the electronic device and substantially no underfill material is located outside of a space directly between the surface of the substrate or the package and the surface of the electronic device, and wherein the underfill material fills an entire space between adjacent first solder bumps physically contacting and individually embedded in the underfill material. - View Dependent Claims (18, 19, 20, 21)
-
-
22. An apparatus, comprising:
-
a first substrate; a second substrate; a plurality of first solder joints, each of the first solder joints electrically coupling the second substrate to the first substrate; a plurality of second solder joints, each of the second solder joints electrically coupling the second substrate to the first substrate; and an underfill material located only directly between the first and second substrates, wherein the underfill material is disposed throughout an entire space between the first solder joints and physically contacts each of the first solder joints, and wherein the underfill material extends about an entire periphery of the first substrate to from a closed chamber and has no contact with the second solder joints in the chamber.
-
-
23. A method, comprising:
-
depositing an underfill material on a first portion of a package having a die such that the underfill material contacts a plurality of first solder bumps and defines uncovered regions of the first solder bumps and such that at least one second solder bump has no contact with the underfill material; after depositing the underfill material on the first portion of the package, positioning the package carrying the underfill material relative to a substrate or another package such that the uncovered regions of the first solder bumps are moved into contact with the substrate or another package and such that the underfill material and the first and second solder bumps are disposed between the package and the substrate or another package; and heating the underfill material to couple the package to the substrate or another package, wherein the underfill material occupies an entire space between the first solder bumps such that the underfill material physically contacts and surrounds the first solder bumps. - View Dependent Claims (24, 25)
-
Specification