Abstract:
The present disclosure provides packages and methods for fabricating packages. A package may comprise a wafer-level package (WLP) layer comprising first and second WLP contacts and first and second conductive pillars disposed on the first and second WLP contacts. Each conductive pillar may comprise a surface opposite the WLP contact that forms an array pad. The array pads may have different sizes. The package may further comprise a mold over the WLP layer and at least partially surrounding the conductive pillars, wherein the mold compound and the first array pads form a substantially planar LGA contact surface that is configured to couple the package to a land grid array.
Abstract:
A semiconductor package according to some examples of the disclosure may include a first body layer, a transformer that may comprise one or more inductors, coupled inductors, or inductive elements positioned above the first body layer. A first ground plane is on a top of the first body layer between the first body layer and the inductive element. The first ground plane may have conductive lines generally perpendicular to a magnetic field generated by the inductive element, and a second ground plane on a bottom of the first body layer opposite the first ground plane. The first and second ground planes may also provide heat dissipation elements for the semiconductor as well as reduce or eliminate eddy current and parasitic effects produced by the inductive element.
Abstract:
The present disclosure provides packages and methods for fabricating packages. A package may comprise a wafer-level package (WLP) layer comprising a WLP contact and a component within the WLP layer associated with a component depth. A conductive pillar is disposed on the WLP contact and comprises an opposite surface that forms an array pad. The package further comprises a mold over the WLP layer and at least partially surrounding the conductive pillar, wherein the mold compound and the array pad form a substantially planar land grid array (LGA) contact surface that is configured to couple the package to a land grid array. The LGA contact surface has a height that is equal to a selected LGA component height, and the selected LGA component height is equal to a difference between a keepout distance associated with a characteristic of the component within the WLP layer and the component depth.
Abstract:
An upper planar capacitor is spaced above a lower planar capacitor by a dielectric layer. A bridged-post inter-layer connector couples the capacitances in parallel, through first posts and second posts. The first posts and second posts extend through the dielectric layer, adjacent the upper and lower planar capacitors. A first level coupler extends under the dielectric layer and couples the first posts together and to a conductor of the lower planar capacitor, and couples another conductor of the lower planar capacitor to one of the second posts. A second level coupler extends above the dielectric layer, and couples the second posts together and to a conductor of the upper planar capacitor, and couples another conductor of the upper planar capacitor to one of the first posts.
Abstract:
A semiconductor package according to some examples may include a first portion of a support plate configured as an RF signal connection, a semiconductor die thermally coupled to a second portion of the support plate to dissipate heat, a first redistribution layer positioned in close proximity to a second redistribution layer to capacitively couple the first redistribution layer to the second redistribution layer, a first via extending between the first portion and the first redistribution layer, and a second via in close proximity to the first via to capacitively couple the second via to the first via.
Abstract:
An inductor design on a wafer level package (WLP) does not need to depopulate the solder balls on the die because the solder balls form part of the inductor. One terminal on the inductor couples to the die, the other terminal couples to a single solder ball on the die, and the remaining solder balls that mechanically contact the inductor remain electrically floating. The resulting device has better inductance, direct current (DC) resistance, board-level reliability (BLR), and quality factor (Q).