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公开(公告)号：US20220389225A1
公开(公告)日：2022-12-08
申请号：US17752884
申请日：2022-05-25
Applicant: TAIMIDE TECHNOLOGY INCORPORATION
Inventor： YI-HSUEH HO , MENG-YING TSAI
IPC: C08L101/12
Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer; wherein the polymer film has a thermal expansion coefficient between 0 and 60 ppm/t of 50° C. to 200° C., a water absorption rate less than 0.5%, a dielectric loss tangent of Df less than 0.005 at a frequency of 10 GHz, and a storage elastic modulus greater than 0.1 GPa at 310° C. A method for manufacturing the polymer film, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder; providing a liquid crystal polymer glue; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film.
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公开(公告)号：US20220356306A1
公开(公告)日：2022-11-10
申请号：US17700541
申请日：2022-03-22
Applicant: TAIMIDE TECHNOLOGY INCORPORATION
Inventor： YI-HSUEH HO , MENG-YING TSAI
Abstract: A black matte polyimide film is provided, the black matte polyimide film includes polyimide, carbon black and polyimide fine powder. The polyimide component is obtained by polymerization of a dianhydride and a diamine, followed by chemical cyclization, in which the dianhydride is pyromellitic dianhydride, and the diamine comprises 5˜15 mol % of p-phenylenediamine and 95˜85 mol % of 4,4′-diaminodiphenyl ether; the carbon black is present in an amount of 2 to 8 wt % of the polyimide film; and the polyimide fine powder is present in an amount of 5 to 10 wt % of the polyimide film, such that the black matte polyimide film has a glossiness between 5 and 30 and a thermal expansion coefficient of less than 41 ppm/° C.
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公开(公告)号：US20220339920A1
公开(公告)日：2022-10-27
申请号：US17725573
申请日：2022-04-21
Applicant: TAIMIDE TECHNOLOGY INCORPORATION
Inventor： JIA-HAO WU , TING-I LIU , MENG-YING TSAI
Abstract: A polyimide composite film for use in a flexible metal clad substrate, comprising: a polyimide base material film; a fluorine polymer layer, formed on at least one surface of the polyimide base material film, comprising polyimide resins and fluorine polymers, wherein the polyimide resin accounts for 2 to 20 wt % of the total solid content of the fluorine polymer layer, the aromatic functional group ratio of the polyimide resin in the fluorine polymer layer is greater than 35%, and the absorption onset wavelength (λonset) of the ultraviolet-visible spectrum is greater than 360 nm; a thickness ratio of the polyimide base material film to one layer of the fluorine polymer layers is 8:1 to 1:4; and a total thickness of the polyimide composite film is between 18 and 175 microns. Thus, the polyimide composite film has a low dielectric constant, low loss factor, and has good drilling processability.
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公开(公告)号：US20220389177A1
公开(公告)日：2022-12-08
申请号：US17752880
申请日：2022-05-25
Applicant: TAIMIDE TECHNOLOGY INCORPORATION
Inventor： YI-HSUEH HO , MENG-YING TSAI
Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.
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