Intenna manufacturing method having capability to improve plating reliability
First Claim
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1. A method of manufacturing an intenna having improved reliability of plating by using electroplating, the method comprising steps of:
- (a) forming a paint layer on a resin molded product with a primer paint;
(b) forming a metal plating layer on a top surface of the paint layer;
(c) etching the metal plating layer with a laser beam so that a radiation pattern portion, an antenna contact portion, and a non-radiation pattern portion are formed, wherein, by the etching step, electricity flows only to the radiation pattern portion and the antenna contact portion;
(d) hanging the resin molded product on a hanger and dipping the resin molded product in an electroplating bath, wherein the radiation pattern portion and the antenna contact portion are electroplated;
(e) forming a primary conductive layer by electroplating on the radiation pattern portion and the antenna contact portion;
(f) exfoliating the metal plating layer formed on the non-radiation pattern portion in an exfoliating bath, the exfoliating being performed by chemical exfoliation using a mixture of sulfuric acid and hydrogen peroxide;
(g) forming a secondary conductive layer by electroplating on the radiation pattern portion and the antenna contact portion;
(h) forming an electrolytic nickel plating layer on the radiation pattern portion and the antenna contact portion on which the secondary conductive layer is formed; and
(i) sealing, washing, and drying the resin molded product on which the nickel plating layer is formed,wherein, when an operating temperature of the paint is 85°
C. or less, the paint is composed of 30 wt % to 40 wt % of acetone, 30 wt % to 40 wt % of methyl ethyl ketone, 10 wt % to 20 wt % of cyclohexanone, and 10 wt % to 20 wt % of an acrylonitrile butadiene styrene (ABS) copolymer, andwherein, when the operating temperature of the paint is in a range of 85°
C. or more to 240°
C. or less, the paint is composed of 30 wt % to 40 wt % of acetone, 30 wt % to 40 wt % of methyl ethyl ketone, 10 wt % to 20 wt % of cyclohexanone, and 10 wt % to 20 wt % of a liquid crystal polymer (LCP) resin.
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Abstract
The present invention relates to a method for manufacturing an internal antenna (intenna) and, in particular, to a method for manufacturing an intenna, which allows a resin molded product to be smoothly and securely plated with a metal by applying a primer paint on the surface of the resin molded product, and thereby improves the reliability of the metal plating formed on the resin molded product.
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2 Claims
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1. A method of manufacturing an intenna having improved reliability of plating by using electroplating, the method comprising steps of:
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(a) forming a paint layer on a resin molded product with a primer paint; (b) forming a metal plating layer on a top surface of the paint layer; (c) etching the metal plating layer with a laser beam so that a radiation pattern portion, an antenna contact portion, and a non-radiation pattern portion are formed, wherein, by the etching step, electricity flows only to the radiation pattern portion and the antenna contact portion; (d) hanging the resin molded product on a hanger and dipping the resin molded product in an electroplating bath, wherein the radiation pattern portion and the antenna contact portion are electroplated; (e) forming a primary conductive layer by electroplating on the radiation pattern portion and the antenna contact portion; (f) exfoliating the metal plating layer formed on the non-radiation pattern portion in an exfoliating bath, the exfoliating being performed by chemical exfoliation using a mixture of sulfuric acid and hydrogen peroxide; (g) forming a secondary conductive layer by electroplating on the radiation pattern portion and the antenna contact portion; (h) forming an electrolytic nickel plating layer on the radiation pattern portion and the antenna contact portion on which the secondary conductive layer is formed; and (i) sealing, washing, and drying the resin molded product on which the nickel plating layer is formed, wherein, when an operating temperature of the paint is 85°
C. or less, the paint is composed of 30 wt % to 40 wt % of acetone, 30 wt % to 40 wt % of methyl ethyl ketone, 10 wt % to 20 wt % of cyclohexanone, and 10 wt % to 20 wt % of an acrylonitrile butadiene styrene (ABS) copolymer, andwherein, when the operating temperature of the paint is in a range of 85°
C. or more to 240°
C. or less, the paint is composed of 30 wt % to 40 wt % of acetone, 30 wt % to 40 wt % of methyl ethyl ketone, 10 wt % to 20 wt % of cyclohexanone, and 10 wt % to 20 wt % of a liquid crystal polymer (LCP) resin. - View Dependent Claims (2)
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Specification
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Current AssigneeBon-Sool Koo, Intops Company Limited
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Original AssigneeBon-Sool Koo, Intops Company Limited
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InventorsKoo, Bon-sool
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Primary Examiner(s)Rufo, Louis J
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Application NumberUS14/895,491Publication NumberTime in Patent Office1,541 DaysField of SearchUS Class CurrentCPC Class CodesC23C 18/16 by reduction or substitutio...C23C 28/023 only coatings of metal elem...C25D 5/024 using locally applied elect...C25D 5/34 Pretreatment of metallic su...C25D 5/48 After-treatment of electrop...C25D 7/00 Electroplating characterise...H01Q 1/243 with built-in antennasH01Q 1/38 formed by a conductive laye...
