Method of fabricating coil-embedded inductor
First Claim
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1. A method of fabricating a coil-embedded inductor, comprising steps of:
- providing a first die with a cavity, and disposing a coil positioning die therein from a first end of the cavity;
disposing a coil in the cavity of the first die, wherein the coil is positioned on the coil positioning die;
filling a first dust into the cavity;
disposing a second die into the cavity of the first die from a second end of the cavity;
reversing the first die with the coil positioning die and the second die, and removing the coil positioning die from the first die;
filling a second dust into the cavity of the first die; and
disposing a third die into the cavity of the first die from the first end of the cavity, and pressing the second die and the third die in the cavity of the first die.
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Abstract
A method of fabricating a coil-embedded inductor provides steps for obtaining uniform density of coil-embedded inductor. The cavity of a first die is filled with dust before being flipped, and then filled with dust a second time. The dust in the cavity is pressed only once for improving the density.
13 Citations
22 Claims
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1. A method of fabricating a coil-embedded inductor, comprising steps of:
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providing a first die with a cavity, and disposing a coil positioning die therein from a first end of the cavity;
disposing a coil in the cavity of the first die, wherein the coil is positioned on the coil positioning die;
filling a first dust into the cavity;
disposing a second die into the cavity of the first die from a second end of the cavity;
reversing the first die with the coil positioning die and the second die, and removing the coil positioning die from the first die;
filling a second dust into the cavity of the first die; and
disposing a third die into the cavity of the first die from the first end of the cavity, and pressing the second die and the third die in the cavity of the first die. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of fabricating a coil-embedded inductor, comprising the steps of:
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providing a first die with a cavity and a terminal supporting base in the cavity, and disposing a coil positioning die therein from a first end of the cavity;
disposing a coil with a terminal in the cavity of the first die via a second end thereof, wherein the coil is positioned on the coil positioning die, and the terminal is positioned on the terminal supporting base;
connecting a supplementary die to the second end of the first die, wherein the supplementary die comprises a terminal fixing block corresponding to the terminal supporting base of the first die, wherein the terminal is fixed by the first die and the supplementary die and a cavity of the supplementary die has the same shape as the cavity of the first die;
filling a first dust into the cavity;
disposing a second die into the supplementary die from a second end of the cavity of the supplementary die;
reversing the first die with the coil positioning die, the supplementary die, and the second die, and removing the coil positioning die from the first die;
filling a second dust into the cavity of the first die; and
disposing a third die into the cavity of the first die from the first end of the cavity of the first die, pressing the second die and the third die in the cavity of the first die. - View Dependent Claims (19, 20, 21, 22)
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Specification