Manufacturing method of liquid crystal polymer film and flexible copper clad laminate having liquid crystal polymer film
AssigneeAzotek Co., Ltd.
InventorHung-Jung Lee
Life of this patent
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Abstract
A method of manufacturing a liquid crystal polymer film, which includes the following operations: providing a liquid crystal polymer powder; uniformly dispersing the liquid crystal polymer powder in a solvent to form a mixed solution; coating the mixed solution on a carrier board to form a coating layer; heating the coating layer to a first temperature to remove the solvent in the coating layer; heating the liquid crystal polymer powder to a second temperature after the solvent is removed to form the liquid crystal polymer film.
Claims9
A method of manufacturing a liquid crystal polymer film, comprising operations of:
- providing a liquid crystal polymer powder;
- uniformly dispersing the liquid crystal polymer powder in a solvent to form a mixed solution, wherein the liquid crystal polymer powder is insoluble in the solvent;
- coating the mixed solution on a carrier board to form a coating layer;
- heating the coating layer to a first temperature to remove the solvent in the coating layer;
- and
- heating the liquid crystal polymer powder to a second temperature after removing the solvent to form the liquid crystal polymer film, wherein the second temperature is higher than the first temperature and a liquid crystal transition temperature of the liquid crystal polymer powder, and is between the liquid crystal transition temperature and a melting point of the liquid crystal polymer powder.
A method of manufacturing a flexible copper clad laminate having a liquid crystal polymer film, comprising operations of:
- providing a liquid crystal polymer powder;
- uniformly dispersing the liquid crystal polymer powder in a solvent to form a mixed solution, wherein the liquid crystal polymer powder is insoluble in the solvent;
- coating the mixed solution on a first copper clad to form a coating layer;
- heating the coating layer to a first temperature to remove the solvent in the coating layer;
- and
- heating the liquid crystal polymer powder to a second temperature after removing the solvent to form the liquid crystal polymer film on the first copper clad, wherein the second temperature is higher than the first temperature and a liquid crystal transition temperature of the liquid crystal polymer powder, and is between the liquid crystal transition temperature and a melting point of the liquid crystal polymer powder.
Dependencies are inferred from the claim text.