A method of manufacturing a heat sink includes a rib portion forming step of forming a rib portion on a substrate having a flat plate shape in such a manner that a first groove and a second groove are formed on a front surface side of the substrate by plastically deforming the substrate by a press thus forming the rib portion in a region sandwiched between the first groove and the second groove. The method further includes a back surface protruding ridge portion cutting removal step of removing protruding ridge portions formed on a back surface side of the substrate by cutting. The method further includes a fin forming step of forming a plurality of fins by working the rib portion; and a heat sink separating step of obtaining the heat sink by separating a portion within a predetermined range which includes the fins from the substrate.

An assembly comprising a substrate, a first integrated device coupled to the substrate, a second integrated device coupled to the substrate, a frame coupled to the substrate such that the frame at least partially surrounds the first integrated device and the second integrated device, and a step heat sink coupled to the frame, such that the step heat sink is located over the first integrated device and the second integrated device. The assembly may further include a shield coupled to the frame such that the shield is located between the frame and the step heat sink. The shield may include a step shield. The assembly may further include a heat pipe coupled to the step heat sink.

A heat spreading plate is suitable to be a top cover of a chip package structure. The heat spreading plate includes a main body and an isolating frame. The main body includes a plurality of metal sheets which are arranged spaced apart from one another totally and capable of thermally connecting different working chips mounted within the chip package structure, respectively. A gap is formed between any two neighboring ones of the metal sheets to completely separate them. The isolating frame surrounds the outer edges of the metal sheets and fills into the gaps for fixedly holding the metal sheets together. One surface of the isolating frame is formed with a plurality of hollow recesses, and each of the metal sheets is exposed outwards from one of the hollow recesses.

A method of forming a semiconductor package includes providing a substrate, wherein the substrate has at least one chip attached on an upper surface of the substrate. An insulating barrier layer is deposited above the substrate, wherein the at least one chip is at least partially embedded within the insulating barrier layer. A thermally conductive layer is formed over the insulating barrier layer to at least partially encapsulate the at least one chip.

Disclosed are systems and methods for cooling electronic devices. In one embodiment, a method of manufacturing a cooling system includes providing a core having open, fluid channels on a first core side; providing a cover configured to cover the channels, and the cover further configured to couple to the core to form a leak proof seal. In some embodiments, a leak proof seal can be obtained through an interference fit. In certain embodiments, a leak proof seal can be obtained through a thermal fitting. In one embodiment, the core is shrank through cooling and then placed inside the cover. In some embodiments, the cover is expanded through heating and the core is placed inside the cover. In certain embodiments, the core is a metal core printed circuit board. In one embodiment, an electro-osmotic pump, a gas accumulator, and a heat exchanger can be operationally coupled to the channels.

A power semiconductor module arrangement includes a power semiconductor module. The power semiconductor module includes a substrate and a heat-conducting layer arranged on a lower surface of the power semiconductor module. The lower surface of the power semiconductor module is a surface that is configured to be mounted to a heat sink. The heat-conducting layer includes a metallic foam and an eutectic material filling cavities within the metallic foam.

Overmolded microelectronic packages containing knurled base flanges are provided, as are methods for producing the same. In various embodiments, the overmolded microelectronic package includes a molded package body, at least one microelectronic device contained in the molded package body, and a base flange to which the molded package body is bonded. The base flange includes, in turn, a flange frontside contacted by the molded package body, a device attachment region located on the flange frontside and to which the at least one microelectronic is mounted, and a knurled surface region. The knurled surface region includes a first plurality of trenches formed in the base flange and arranged in a first repeating geometric pattern. The molded package body extends or projects into the first plurality of trenches to decrease the likelihood of delamination of the molded package body from the base flange.

A packaged semiconductor device and a method and apparatus for forming the same are disclosed. In an embodiment, a method includes bonding a device die to a first surface of a substrate; depositing an adhesive on the first surface of the substrate; depositing a thermal interface material on a surface of the device die opposite the substrate; placing a lid over the device die and the substrate, the lid contacting the adhesive and the thermal interface material; applying a clamping force to the lid and the substrate; and while applying the clamping force, curing the adhesive and the thermal interface material.

One aspect relates to a heat spreading plate having at least one cooling fin. The heat spreading plate includes at least a first layer and at least a second layer, and at least one surface portion bent out of a base surface of the second layer forms a cooling fin.

A heat dissipation unit includes a heat pipe and a base seat. The base seat has a first side and a second side. The second side is formed with a channel and multiple perforations in communication with the first and second sides. The heat pipe has a heat absorption section and a conduction section. The conduction section extends from the heat absorption section in a direction to at least one end of the heat pipe distal from the heat absorption section. Several parts of the heat pipe corresponding to the perforations are received in the perforations and flush with the first side of the base seat. The heat dissipation unit improves the shortcoming of the conventional heat dissipation component that the coplanar precision between the heat pipe and the protruding platform of the base seat is hard to control.