Panel level fabrication of package substrates with integrated stiffeners
First Claim
Patent Images
1. A package substrate, comprising:
- a substrate having a first plurality of pads on a first surface and a second plurality of pads on a second surface opposite of the first surface;
an adhesion layer disposed on the first surface and around the first plurality of pads; and
a stiffener disposed on top of the adhesion layer and around the first plurality of pads, the stiffener having a tab comprising a first portion of an outer edge of the stiffener that extends to an edge of the substrate, the tab having a length extending along a portion of the edge of the substrate, wherein a second portion of the outer edge of the stiffener does not extend to the edge of the substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques are disclosed for forming a package substrate with integrated stiffener. A panel of package substrates are provided. An adhesion layer is then formed on each package substrate of the panel of package substrates. A panel of stiffeners are then attached to the panel of package substrates by the adhesion layer, each stiffener corresponding to a respective package substrate. The panel of package substrates is then singulated into individual package substrates with integrated stiffeners. The stiffeners on the singulated package substrates include tabs that extend to the edges of the package substrates.
-
Citations
15 Claims
-
1. A package substrate, comprising:
-
a substrate having a first plurality of pads on a first surface and a second plurality of pads on a second surface opposite of the first surface; an adhesion layer disposed on the first surface and around the first plurality of pads; and a stiffener disposed on top of the adhesion layer and around the first plurality of pads, the stiffener having a tab comprising a first portion of an outer edge of the stiffener that extends to an edge of the substrate, the tab having a length extending along a portion of the edge of the substrate, wherein a second portion of the outer edge of the stiffener does not extend to the edge of the substrate. - View Dependent Claims (2, 3, 4)
-
-
5. A device package, comprising:
-
a substrate having a first plurality of pads on a first surface and a second plurality of pads on a second surface opposite of the first surface; a semiconductor die coupled to the first plurality of pads; a second level interconnect (SLI) structure coupled to the second plurality of pads; an adhesion layer disposed on the first surface and around the first plurality of pads and the semiconductor die; and a stiffener disposed on top of the adhesion layer and around the first plurality of pads and the semiconductor die, the stiffener having a tab comprising a first portion of an outer edge of the stiffener that extends to an edge of the substrate, the tab having a length extending along a portion of the edge of the substrate, wherein a second portion of the outer edge of the stiffener does not extend to the edge of the substrate. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification