Anisotropic conductive film and method and composition for making the same
AssigneeMk High Technology Joint Stock Company
InventorsKhang Trong Nguyen, Thuat Tran Nguyen
Life of this patent
Estimating the term…
Abstract
A method for producing an anisotropic conductive film, which includes mixing a base polymer with an initiator and a first solvent to obtain a first mixture, dispersing conductive microspheres in an alcohol or a second solvent containing a surfactant to obtain a second mixture, mixing the first mixture with a monomer, a binder, and the second mixture to obtain a third mixture, and laminating the third mixture on a carrying film, followed by drying, so as to obtain the anisotropic conductive film. An anisotropic conductive film produced by the method and a composition for forming the anisotropic conductive film are also disclosed.
Claims22
A method for producing an anisotropic conductive film, comprising:
- (a) mixing a base polymer with an initiator and a first solvent, so as to obtain a first mixture;
- (b) dispersing conductive microspheres, which are selected from the group consisting of polymer core-metal shell microspheres and solid metal microspheres, in an alcohol or a second solvent containing a surfactant, so as to obtain a second mixture;
- (c) mixing the first mixture obtained in step (a) with a monomer, a binder, and the second mixture obtained in step (b), so as to obtain a third mixture;
- and
- (d) laminating the third mixture on a carrying film, followed by drying, so as to obtain the anisotropic conductive film.
A composition for forming an anisotropic conductive film, comprising:
- a base polymer;
- 10 wt % to 35 wt % of a monomer;
- 5 wt % to 20 wt % of a binder;
- 1 wt % to 5 wt % of an initiator;
- 0.5 wt % to 5 wt % of a surfactant;
- and
- 1 wt % to 10 wt % of conductive microspheres, based on the total weight of the base polymer, wherein the surfactant is selected from the group consisting of sodium dodecyl sulfate (SDS), polyethylene glycol p-(1,1,3,3-tetramethylbutyl)-phenyl ether, polyvinylpyrrolidone (PVP), dioctyl sodium sulfosuccinate (DSS), alkylbenzene sulfonates, nonoxynol-9, polysorbate, poloxamers, tergitol, antarox, and combinations thereof.
Dependencies are inferred from the claim text.