Patent ID: 9153520
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A semiconductor die assembly, comprising: a first semiconductor die; a second semiconductor die carrying the first semiconductor die, the second semiconductor die having a peripheral portion extending laterally outward beyond at least one side of the first semiconductor die, wherein the first semiconductor die defines a first thermal path away from the second semiconductor die; a thermal transfer feature at the peripheral portion of the second semiconductor die, wherein the thermal transfer feature is configured to define a second thermal path that transfers heat away from the second semiconductor die, the first thermal path being separate from the first semiconductor die, wherein the first and second thermal paths are laterally spaced apart and substantially perpendicular to one another, and wherein the second thermal path is generally parallel with the plane of the second die; a plurality of thermally conductive elements disposed between the first and second semiconductor dies and extending from the first to the second semiconductor die, and wherein the thermally conductive elements are electrically isolated from the first and second semiconductor dies; and a thermally conductive casing that is peripheral to the thermal transfer feature, wherein the thermally conductive casing is in thermal communication with the thermal transfer feature.