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US 12,521,919 B2Granted
Anisotropic film and method for manufacturing anisotropic film
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHiroyuki Iguchi, Toshio Shiobara, Tsutomu Kashiwagi
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Abstract
An anisotropic electro-conductive film having high reliability, which electrically connects circuit electrodes having a fine pattern. The anisotropic film contains an insulating resin and particle groups. The particle groups are groups of particles in which a plurality of particles are bound together with a binder. The particle groups are regularly arranged with an interval of 1 μm to 1,000 μm.
Claims45
An anisotropic film comprising:
- an insulating resin;
- and
- particle groups in which a plurality of particles are bound together with a binder, the particle groups being a portion where two or more particles are in contact with each other, and being regularly arranged with an interval of 1 μm to 1,000 μm,
- wherein:
- the particles are heat conductive particles, and the particle groups are heat conductive particle groups;
- the particles are phosphors, and the particle groups are phosphor particle groups;
- the particles are magnetic particles, and the particle groups are magnetic particle groups;
- or
- the particles are electromagnetic wave absorbing filler, and the particle groups are electromagnetic wave absorbing filler particle groups.
6 more elements
A method for manufacturing an anisotropic film, the method comprising:
- (1) preparing a composition by mixing particles and a binder;
- and
- (2) filling the composition into a mold to which a concavo-convex pattern has been applied to produce particle groups in which a plurality of the particles are bound together.
Dependencies are inferred from the claim text.