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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H01L2224/26
Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
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H01L2224/28
Structure, shape, material or disposition of the layer connectors prior to the connecting process
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H01L2224/29
of an individual layer connector
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H01L2224/29698
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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H01L2224/2999
with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
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H01L2224/2999

MULTI-LAYER SHEET FOR MOLD UNDERFILL ENCAPSULATION, METHOD FOR MOLD UNDERFILL ENCAPSULATION, ELECTRONIC COMPONENT MOUNTING SUBSTRATE, AND PRODUCTION METHOD FOR ELECTRONIC COMPONENT
20220310546 · 2022-09-29 ·

[Problem] To provide a multi-layer sheet for mold underfill encapsulation, which exhibits good infiltrability between electrodes. [Solution] In order to solve the aforementioned problem, the present invention provides a multi-layer sheet for mold underfill encapsulation, which is characterized by having provided as an outermost layer thereof an (A) layer that comprises a resin composition having a local maximum loss tangent (tan δ) value of 3 or more at a measurement temperature of 125° C. for a measurement time of 0-100 seconds.

Multi-layer sheet for mold underfill encapsulation, method for mold underfill encapsulation, electronic component mounting substrate, and production method for electronic component
12362310 · 2025-07-15 · ·

[Problem] To provide a multi-layer sheet for mold underfill encapsulation, which exhibits good infiltrability between electrodes. [Solution] In order to solve the aforementioned problem, the present invention provides a multi-layer sheet for mold underfill encapsulation, which is characterized by having provided as an outermost layer thereof an (A) layer that comprises a resin composition having a local maximum loss tangent (tan ) value of 3 or more at a measurement temperature of 125 C. for a measurement time of 0-100 seconds.