Multilayer seed pattern inductor and manufacturing method thereof
First Claim
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1. A multilayer seed pattern inductor comprising:
- a magnetic body containing a magnetic material; and
an internal coil part embedded in the magnetic body and including connected coil conductors disposed on two opposing surfaces of an insulating substrate,wherein each of the coil conductors includes a seed pattern including first and second seed pattern layers, a surface coating layer covering the seed pattern, and an upper plating layer disposed on an upper surface of the surface coating layer,wherein the seed pattern has a height greater than a width thereof, wherein the width is measured along one of the opposing surfaces of the insulating substrate, andwherein the first seed pattern layer has the surface coating layer contacting only side surfaces thereof from among top, bottom, and side surfaces, and the second seed pattern layer has the surface coating layer covering upper and side surfaces thereof.
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Abstract
A multilayer seed pattern inductor includes a magnetic body and an internal coil part. The magnetic body contains a magnetic material. The internal coil part is embedded in the magnetic body and includes connected coil conductors disposed on two opposing surfaces of an insulating substrate. Each of the coil conductors includes a seed pattern formed of at least two layers, a surface coating layer covering the seed pattern, and an upper plating layer formed on an upper surface of the surface coating layer.
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Citations
22 Claims
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1. A multilayer seed pattern inductor comprising:
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a magnetic body containing a magnetic material; and an internal coil part embedded in the magnetic body and including connected coil conductors disposed on two opposing surfaces of an insulating substrate, wherein each of the coil conductors includes a seed pattern including first and second seed pattern layers, a surface coating layer covering the seed pattern, and an upper plating layer disposed on an upper surface of the surface coating layer, wherein the seed pattern has a height greater than a width thereof, wherein the width is measured along one of the opposing surfaces of the insulating substrate, and wherein the first seed pattern layer has the surface coating layer contacting only side surfaces thereof from among top, bottom, and side surfaces, and the second seed pattern layer has the surface coating layer covering upper and side surfaces thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multilayer base pattern inductor comprising:
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a magnetic body containing a magnetic material; and an internal coil part embedded in the magnetic body and including connected coil conductors disposed on two opposing surfaces of an insulating substrate, wherein each of the coil conductors includes a base pattern including first and second seed pattern layers, a surface coating layer covering the base pattern, and an outer plating layer disposed on an outer surface of the surface coating layer facing away from the insulating substrate, wherein the outer plating layer extends only on an upper surface facing away from the insulating substrate, among upper and side surfaces of the surface coating layer of each of the coil conductors, wherein the first seed pattern layer has the surface coating layer contacting only side surfaces thereof from among top, bottom, and side surfaces, and the second seed pattern layer has the surface coating layer covering upper and side surfaces thereof, and wherein the base pattern has a height greater than a width thereof, wherein the width is measured along one of the opposing surfaces of the insulating substrate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification