公开(公告)号：US11574850B2

公开(公告)日：2023-02-07

申请号：US17318900

申请日：2021-05-12

Applicant: Google LLC

Inventor： Xu Zuo

IPC: H01L23/367 ,  F28F13/12 ,  H05K7/20 ,  H01L23/467

Abstract: A planar fin for use in a heat sink includes turbulent structures extending from the sides of the planar fin. Each turbulent structure defines a longitudinal axis and having a first edge that is parallel to the longitudinal axis and connected to the a planar surface of the fin. Each turbulent structure also includes a second edge opposite the first edged and in free space. The second edge defines a periphery that varies in distance from the first edge along the length of the longitudinal axis. The periphery of each second edge is further shaped such that turbulent flow of a fluid is induced in the flow flowing over the second edge at at least a predefined flow rate.

公开(公告)号：US11270925B2

公开(公告)日：2022-03-08

申请号：US16885634

申请日：2020-05-28

Applicant: Google LLC

Inventor： Xu Zuo

IPC: H01L23/367 ,  H01L23/46

Abstract: A heat distribution device includes a main body, a recessed cavity and a plurality of ribs. The a recessed cavity is positioned within the main body and includes an interior surface, a peripheral wall extending around and defining the interior surface, and a central point within the recessed cavity. A plurality of ribs extend away from the interior surface of the recessed cavity. The plurality of ribs are concentrically arranged around the central point and define a plurality of channels therebetween. Each of the plurality of ribs have a top surface sloping toward the central point. The plurality of ribs are arranged so that the top surfaces of the plurality of ribs collectively form a non-planar surface within the heat distribution device.