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1. WO2003009379 - DISPOSITIF A SEMI-CONDUCTEURS ET PROCEDE DE FABRICATION

Numéro de publication WO/2003/009379
Date de publication 30.01.2003
N° de la demande internationale PCT/US2002/018476
Date du dépôt international 11.06.2002
Demande présentée en vertu du Chapitre 2 29.01.2003
CIB
H01L 21/60 2006.01
HÉLECTRICITÉ
01ÉLÉMENTS ÉLECTRIQUES FONDAMENTAUX
LDISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS
21Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de dispositifs à semi-conducteurs ou de dispositifs à l'état solide, ou bien de leurs parties constitutives
02Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives
04les dispositifs présentant au moins une barrière de potentiel ou une barrière de surface, p.ex. une jonction PN, une région d'appauvrissement, ou une région de concentration de porteurs de charges
50Assemblage de dispositifs à semi-conducteurs en utilisant des procédés ou des appareils non couverts par l'un uniquement des groupes H01L21/06-H01L21/326185
60Fixation des fils de connexion ou d'autres pièces conductrices, devant servir à conduire le courant vers le ou hors du dispositif pendant son fonctionnement
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 2224/05018
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
05of an individual bonding area
05001Internal layers
0501Shape
05016in side view
05018being a conformal layer on a patterned surface
H01L 2224/05124
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
05of an individual bonding area
05001Internal layers
05099Material
051with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
05117the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
05124Aluminium [Al] as principal constituent
H01L 2224/05147
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
05of an individual bonding area
05001Internal layers
05099Material
051with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
05138the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
05147Copper [Cu] as principal constituent
H01L 2224/05166
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
05of an individual bonding area
05001Internal layers
05099Material
051with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
05163the principal constituent melting at a temperature of greater than 1550°C
05166Titanium [Ti] as principal constituent
H01L 2224/05171
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
05of an individual bonding area
05001Internal layers
05099Material
051with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
05163the principal constituent melting at a temperature of greater than 1550°C
05171Chromium [Cr] as principal constituent
Déposants
  • MOTOROLA, INC., A CORPORATION OF THE STATE OF DELAWARE [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US
Inventeurs
  • GREER, Stuart, E.; US
Mandataires
  • KOCH, William, E.; Motorola, Inc. Corp. Law Dpt., Intell. Property Section 7700 West Parmer Lane MD: TX32/PL02 Austin, TX 78729 , US
Données relatives à la priorité
09/905,75614.07.2001US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) SEMICONDUCTIVE DEVICE AND METHOD OF FORMATION
(FR) DISPOSITIF A SEMI-CONDUCTEURS ET PROCEDE DE FABRICATION
Abrégé
(EN)
In accordance with one embodiment of the present invention, a semiconductor device underbump metallurgy (414) is formed over a semiconductor bond pad (128), wherein the underbump metallurgy (414) comprises a chromium, copper, and nickel phased-region (404), and wherein the presence of nickel in the phased-region (404) inhibits conversion of tin from the solder bump and other tin sources from forming spallable Cu6Sn5 copper-tin intermetallics.
(FR)
La présente invention concerne, dans un mode de réalisation, une structure métallurgique (414) sous-jacente aux bosses d'un dispositif à semi-conducteurs, formée sur un plot de connexion (128) à semi-conducteurs. Ladite structure métallurgique (414) sous-jacente aux bosses comprend une région (404) en phase de chrome, cuivre et nickel, la présence de nickel dans la région en phase (404) empêchant que l'étain des bosses de soudure et d'autres sources d'étain ne forme des structures intermétalliques de cuivre-étain Cu6Sn5 pouvant s'écailler.
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