Taiwan Semiconductor Manufacturing Comp. Ltd.

Nxp B.v.

Koninklijke Philips Corporation N.v.

Chris Wyland

Hendrikus Johannes Jacobus Thoonen

A thermal interface material facilitates heat transfer between an integrated circuit device and a thermally conductive device. According to an example embodiment, a thermal interface material includes carbon nanotube material that enhances the thermal conductivity thereof The interface material flows between an integrated circuit device and a thermally conductive device. The carbon nanotube material conducts heat from the integrated circuit device to the thermally conductive device.

Nanotube-based fluid interface material and approach

Carbon nanotube material is used in an integrated circuit substrate. According to an example embodiment, an integrated circuit arrangement () includes a substrate () with a carbon nanotube structure () therein. The carbon nanotube structure is arranged in one or more of a variety of manners to provide structural support and/or thermal conductivity. In some instances, the carbon nanotube structure is arranged to provide substantially all structural support for an integrated circuit arrangement. In other instances, the carbon nanotube structure is arranged to dissipate heat throughout the substrate. In still other instances, the carbon nanotube structure is arranged to remove heat from selected portions of the carbon nanotube substrate.

Integrated circuit nanotube-based subsrate

A tape adhesive type material is directionally conductive. According to an example embodiment of the present invention, carbon nanotubes () are configured in a generally parallel arrangement in a tape base type material (). The carbon nanotubes conduct (e.g., electrically and/or thermally) in their generally parallel direction and the tape base type material inhibits conduction in a generally lateral direction. In some implementations, the tape base material is arranged between integrated circuit components (), with the carbon nanotubes making a conductive connection there between. This approach is applicable to coupling a variety of components together, such as integrated circuit dies (flip chip and conventional dies) to package substrates, to each other and/or to leadframes.

Nanotube-based directionally-conductive adhesive

In enhancing signal quality through packages, meta-materials may be used. Meta-materials are designed to make the signal act in such a way as to make the shape of the signal behave as though the permittivity and permeability are different than the real permittivity and permeability of the insulator used. In an example embodiment, a substrate () is configured as a meta-material. The meta-material provides noise protection for a signal line () having a pre-determined length disposed on the meta-material. The substrate comprises a dielectric material () having a topside surface and an underside surface. A conductive material () is arranged into pre-determined shapes () having a collective length. Dielectric material envelops the conductive material and the conductive material is disposed at a first predetermined distance () from the topside surface and at a second predetermined distance from the underside surface. The collective length of the conductive material () is comparable to the pre-determined length of the signal line ().

Enhanced substrate using metamaterials

Consistent with an example embodiment, there is an integrated circuit (IC) device in a packaging having electrically insulated connections. The IC device comprises a semiconductor device () mounted onto a die attachment area (); the semiconductor device has a plurality of bonding pads (). A lead frame having a plurality of bonding fingers () surrounds the die attachment area. A plurality of mutually isolated connection conductors () having respective first ends are attached to respective bonding pads on the semiconductor device and the plurality of mutually isolated connection conductors having respective second respective second ends are attached to respective bonding fingers of the lead frame. An insulating material () coats at least a portion of the plurality of mutually isolated connection conductors. The mutually isolated connection conductors may include a bond wire () for the signal connection and a conductive strap () for the voltage reference connection. The insulating material () coating the bond wires reduces the likelihood of short circuits during encapsulation.

Electrically enhanced wirebond package

Bond wires for integrated circuits are implemented using a variety of methods. Using one such method, a composite bond wire is produced for use in an integrated circuit. A conductive material is melted and mixed with a material of particles less than 100 micrometers in size to create a mixture. The mixture is used to create the composite bond wire. A composite wire having an inner core and an outer layer having a higher conductivity than the inner core is also provided. The outer layer is designed to be thicker than the skin depth at the operating frequency for carrying AC signals.

Method and system for composite bond wires

A bond pad structure () for an integrated circuit (IC) device uses carbon nanotubes to increase the strength and resilience of wire bonds (). In an example embodiment there is, a bond pad structure () on an IC substrate, the bond pad structure comprises, a first conductive layer () having a top surface and a bottom surface, the bottom surface attached to the IC substrate. A dielectric layer () is deposited on the top surface of the first conductive layer (), the dielectric layer having an array of vias (), the array of vias filled with a carbon nanotube material (), the carbon nanotube material () is electrically coupled to the first conductive layer (). There is a second conductive layer () having a top surface and a bottom surface, the bottom surface of the second conductive layer is electrically coupled to the carbon nanotube material (). A feature of this embodiment may include the first () or second () conductive layer being comprised of carbon nanotube material, as well.

Carbon nanotube bond pad structure and method therefor

A structure provides for the control of bond wire impedance. In an example embodiment, there is an integrated circuit device comprising a semiconductor device die having a plurality of grounding pads, signal pads, and power pads and a package for mounting the integrated circuit and includes a conductive path having at least one reference trace that surrounds the integrated circuit. A grounding arch is disposed over the semiconductor device die.

Ground arch for wirebond ball grid arrays

A substrate material for mounting an integrated circuit contains a non-electrically-conductive mesh of thermally-conductive material. Because the mesh is electrically-non-conductive, it can purposely be configured to contact any and all of the circuit traces that are proximate to the substrate, thereby using the circuit traces as thermally-coupled heat sinks. In a preferred embodiment, the thermally-conductive mesh replaces the structural fiberglass mesh that is conventionally used in substrates, thereby allowing the mesh to serve a dual structural and thermal function.

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Livermore, CA, United States of America

Chris Wyland