Abstract:
Method of forming a microelectronic package using control of die and substrate differential expansions. The method includes: providing a die-substrate combination including a substrate, a die disposed on the substrate, and plurality of solder paste disposed between the die and the substrate; reflowing the solder paste by exposing the die-substrate combination to temperatures changes including heating the die-substrate combination to liquefy the solder paste, and cooling down the die-substrate combination until the solder paste has solidified to form solder joints to yield the package; and controlling an expansion of the die and the substrate at least during cooling down to mitigate a relative difference in volumetric strain between the die and the substrate. Controlling may comprise exposing the die-substrate combination to pressure changes at least during cooling down.
Abstract:
An integrated circuit package includes a first chip and a folded flexible substrate. The flexible substrate has a first surface and an opposing second surface and is disposed to partially surround the first chip. A first routing layer is formed on the first surface of the flexible substrate and a second routing layer is formed on the second surface of the flexible substrate. A metal ground plane is formed on a selected one of the first and the second surfaces.
Abstract:
A socket (300, FIG. 3) includes a housing (302) with multiple openings (304) formed in the top surface. Each opening (304) provides access to conductive contacts (502, FIG. 5), which provide an electrical interface between a device that is inserted into the socket and the next level of interconnect (e.g., a PC board). Embedded within the socket is a conductive structure (310, FIG. 3). In one embodiment, the conductive structure is electrically connected to one or more ground conducting contacts (708, FIG. 7). The conductive structure includes column walls (312), which run in parallel with columns of contacts, and row walls (314), which run in parallel with rows of contacts and which intersect the column walls. In this manner, the conductive structure forms multiple chambers (402, FIG. 4). Each signal carrying and power conducting contact is positioned within a chamber. Accordingly, the walls of the conductive structure function as a ground plane that surrounds the signal carrying and power conducting contacts.
Abstract:
A system for an electronic device includes a housing having one or more walls that define an internal region. An outlet port is fluidically coupled to the internal region of the housing, which allows emission of a fluid from the internal region of the housing as a first flow at a first temperature. A merging element, fluidically coupled to the outlet port, merges the first flow with a second flow, which has a second temperature that is less than the first temperature.
Abstract:
A system for an electronic device includes a housing having one or more walls that define an internal region. An outlet port is fluidically coupled to the internal region of the housing, which allows emission of a fluid from the internal region of the housing as a first flow at a first temperature. A merging element, fluidically coupled to the outlet port, merges the first flow with a second flow, which has a second temperature that is less than the first temperature.
Abstract:
Methods and systems for attaching a chip to a next level package by directing radiant energy at the chip back side while substantially preventing irradiation of the next level package are described.
Abstract:
An electrochemical device is disclosed that includes a plurality of cells that each include a face, wherein a terminal is disposed on the faces of each respective cell. A bus bar has a bus bar height and electrically couples the terminals from cell-to-cell within the electrochemical device. A plurality of sheets are disposed between the plurality of cells, the plurality of sheets are substantially the same height as the combined, height of each cell and bus bar.
Abstract:
Provided are methods and devices in which an inductor is embedded in a package adapted to carry an integrated circuit and a magnetically permeable material is also embedded in the package so that the inductor and the magnetically permeable material are magnetically coupled to each other. In one embodiment, the magnetic permeable material is shaped as a pin which is press-fit into the core of a helix-shaped inductor embedded in the package substrate.
Abstract:
An integrated circuit package includes a first chip and a folded flexible substrate. The flexible substrate has a first surface and an opposing second surface and is disposed to partially surround the first chip. A first routing layer is formed on the first surface of the flexible substrate and a second routing layer is formed on the second surface of the flexible substrate. A metal ground plane is formed on a selected one of the first and the second surfaces.
Abstract:
Two types of thermal management devices for efficiently dissipating heat generated by high performance electronic devices, such as microprocessors for desktop and server computers producing a power of near 200 Watts and high power electronic devices that are small and thin, such as those used in telephones, radios, laptop computers, and handheld devices. An integrated heat sink and spreader for cooling an item has a vapor chamber heat sink with a thinner first wall and a thicker second wall. The thicker second wall is engageable with the item in efficient heat transferring relationship. A plurality of heat-radiating fins are attached to the thinner first wall. An embedded direct heat pipe attachment includes a heat pipe embedded in a spreader plate that is in direct heat transferring contact with an item through a thin, uniform layer of thermal interface material.