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1. WO2006127669 - INTEGRATED CIRCUIT DIE ATTACH USING BACKSIDE HEAT SPREADER

Publication Number WO/2006/127669
Publication Date 30.11.2006
International Application No. PCT/US2006/019850
International Filing Date 23.05.2006
IPC
H01L 23/10 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
02Containers; Seals
10characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
H01L 23/12 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
12Mountings, e.g. non-detachable insulating substrates
H01L 23/28 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
28Encapsulation, e.g. encapsulating layers, coatings
H01L 23/34 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
34Arrangements for cooling, heating, ventilating or temperature compensation
H01L 23/495 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
48Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements
488consisting of soldered or bonded constructions
495Lead-frames
CPC
H01L 2224/0401
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
02Bonding areas; Manufacturing methods related thereto
04Structure, shape, material or disposition of the bonding areas prior to the connecting process
0401Bonding areas specifically adapted for bump connectors, e.g. under bump metallisation [UBM]
H01L 2224/04026
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
02Bonding areas; Manufacturing methods related thereto
04Structure, shape, material or disposition of the bonding areas prior to the connecting process
04026Bonding areas specifically adapted for layer connectors
H01L 2224/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
10Bump connectors; Manufacturing methods related thereto
15Structure, shape, material or disposition of the bump connectors after the connecting process
16of an individual bump connector
H01L 2224/32188
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
31Structure, shape, material or disposition of the layer connectors after the connecting process
32of an individual layer connector
321Disposition
32151the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
32153the body and the item being arranged next to each other, e.g. on a common substrate
32175the item being metallic
32188the layer connector connecting to a bonding area protruding from the surface of the item
H01L 2224/32245
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
26Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
31Structure, shape, material or disposition of the layer connectors after the connecting process
32of an individual layer connector
321Disposition
32151the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
32221the body and the item being stacked
32245the item being metallic
H01L 2224/48091
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2224Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
42Wire connectors; Manufacturing methods related thereto
47Structure, shape, material or disposition of the wire connectors after the connecting process
48of an individual wire connector
4805Shape
4809Loop shape
48091Arched
Applicants
  • TEXAS INSTRUMENTS INCORPORATED [US]/[US] (AllExceptUS)
  • LANGE, Bernhard [DE]/[US] (UsOnly)
Inventors
  • LANGE, Bernhard
Agents
  • FRANZ, Warren, L.
Priority Data
11/134,95223.05.2005US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) INTEGRATED CIRCUIT DIE ATTACH USING BACKSIDE HEAT SPREADER
(FR) FIXATION DE PUCE DE CIRCUIT INTEGRE METTANT EN OEUVRE UN DISSIPATEUR THERMIQUE FIXE SUR L'ENVERS
Abstract
(EN) A heat conductive metal layer (200) is formed over a backside of an integrated circuit chip (102), attached via an epoxy or other die attachment material (106) to a substrate (104). The metal layer (200) improves heat dissipation by conducting heat from the chip (102) around voids (109) present in the die attach material. Metal layer (200) may be of composite construction, having a primary metal layer, one or more barrier metal layers, an adhesive metal layer to improve metal adherence to the chip, and a solder layer to enable optional direct solder attachment to a substrate.
(FR) Selon l'invention, une couche métallique thermo-conductrice (200) est formée sur l'envers d'une puce de circuit intégré (102) fixée au moyen d'une résine époxyde ou d'un autre matériau de fixation de puce (106) sur un substrat (104). Cette couche métallique (200) améliore la dissipation thermique par conduction de la chaleur provenant de la puce (102) autour de vides (109) formés dans le matériau de fixation de puce. La couche métallique (200) peut présenter une structure composite comprenant une couche métallique primaire, au moins une couche métallique barrière, une couche métallique adhésive destinée à améliorer l'adhérence métallique à la puce, et une couche de brasure permettant une fixation de brasure directe optimale sur un substrat.
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