Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01L
SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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2224/00
Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
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H01L2224/01
Means 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
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H01L2224/10
Bump connectors; Manufacturing methods related thereto
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H01L2224/12
Structure, shape, material or disposition of the bump connectors prior to the connecting process
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H01L2224/13
of an individual bump connector
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H01L2224/13698
with a principal constituent of the material being a combination of two or more materials in the form of a matrix with a filler, i.e. being a hybrid material, e.g. segmented structures, foams
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H01L2224/137
with 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
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H01L2224/13738
the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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H01L2224/13747
Copper [Cu] as principal constituent
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H01L2224/13747

Chip packages with sintered interconnects formed out of pads
10777496 · 2020-09-15 · ·

The present invention is directed to a method for interconnecting two components. The first component includes a first substrate and a set of structured metal pads arranged on a main surface. Each of the pads includes one or more channels, extending in-plane with an average plane of the pad, so as to form at least two raised structures. The second interconnect component includes a second substrate and a set of metal pillars arranged on a main surface. The structured metal pads are bonded to a respective, opposite one of the metal pillars, using metal paste. The paste is sintered to form porous metal joints at the level of the channels. Metal interconnects are obtained between the substrates. During the bonding, the metal paste is sintered by exposing the structured metal pads and metal pillars to a reducing agent. The channels and raised structures improve the penetration of the reducing agent.

Chip packages with sintered interconnects formed out of pads
10777496 · 2020-09-15 · ·

The present invention is directed to a method for interconnecting two components. The first component includes a first substrate and a set of structured metal pads arranged on a main surface. Each of the pads includes one or more channels, extending in-plane with an average plane of the pad, so as to form at least two raised structures. The second interconnect component includes a second substrate and a set of metal pillars arranged on a main surface. The structured metal pads are bonded to a respective, opposite one of the metal pillars, using metal paste. The paste is sintered to form porous metal joints at the level of the channels. Metal interconnects are obtained between the substrates. During the bonding, the metal paste is sintered by exposing the structured metal pads and metal pillars to a reducing agent. The channels and raised structures improve the penetration of the reducing agent.

CHIP PACKAGES WITH SINTERED INTERCONNECTS FORMED OUT OF PADS
20190109084 · 2019-04-11 ·

The present invention is directed to a method for interconnecting two components. The first component includes a first substrate and a set of structured metal pads arranged on a main surface. Each of the pads includes one or more channels, extending in-plane with an average plane of the pad, so as to form at least two raised structures. The second interconnect component includes a second substrate and a set of metal pillars arranged on a main surface. The structured metal pads are bonded to a respective, opposite one of the metal pillars, using metal paste. The paste is sintered to form porous metal joints at the level of the channels. Metal interconnects are obtained between the substrates. During the bonding, the metal paste is sintered by exposing the structured metal pads and metal pillars to a reducing agent. The channels and raised structures improve the penetration of the reducing agent.

CHIP PACKAGES WITH SINTERED INTERCONNECTS FORMED OUT OF PADS
20190109084 · 2019-04-11 ·

The present invention is directed to a method for interconnecting two components. The first component includes a first substrate and a set of structured metal pads arranged on a main surface. Each of the pads includes one or more channels, extending in-plane with an average plane of the pad, so as to form at least two raised structures. The second interconnect component includes a second substrate and a set of metal pillars arranged on a main surface. The structured metal pads are bonded to a respective, opposite one of the metal pillars, using metal paste. The paste is sintered to form porous metal joints at the level of the channels. Metal interconnects are obtained between the substrates. During the bonding, the metal paste is sintered by exposing the structured metal pads and metal pillars to a reducing agent. The channels and raised structures improve the penetration of the reducing agent.