Surface mountable inductor
First Claim
1. A surface mountable inductor, comprising:
- an inner substrate layer having first and second metalization patterns disposed upon first and second opposed surfaces, said first and second metalization patterns interconnected by vias to form an inductor having first and second ends;
first and second outer substrate layers disposed on the first and second opposed surfaces;
said inner substrate layer and first and second outer substrate layers forming a structure having first, second, third, and fourth side surfaces and first and second ends;
a metalized trace coupled to a center point of the first metalization pattern and extending about said first, second, third, and fourth side surfaces, said metalized trace providing a center tap element for the inductor; and
said surface mountable inductor being mountable upon any of the first, second, third, and fourth side surfaces interchangeably between the first and second ends.
1 Assignment
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Accused Products
Abstract
A multi-tapped surface mount inductor (300) providing high quality factor (Q) and high inductance is capable of being surface mounted on any of its four sides. An inner substrate layer(s) (322) is provided with metallized patterns (328, 332) and vias (336) to form a multi-turn coil. The inner substrate layer (322) is then sandwiched between first and second outer substrate layers (324, 326) to form a six sided structure. Tapped element(s) (304) can be tapped off the multi-turn coil in increments of a quarter turn or less to provide a multi-tapped surface mount inductor capable of being mounted an any of its'"'"' four side surfaces (310, 312, 314, 316). When tapped element(s) (204) are tapped symmetrically between the input/output ends (214, 216), the surface mount inductor (200) may interchange its'"'"' input/output ends (214, 216) making the component surface mountable in eight different positions.
64 Citations
25 Claims
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1. A surface mountable inductor, comprising:
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an inner substrate layer having first and second metalization patterns disposed upon first and second opposed surfaces, said first and second metalization patterns interconnected by vias to form an inductor having first and second ends; first and second outer substrate layers disposed on the first and second opposed surfaces; said inner substrate layer and first and second outer substrate layers forming a structure having first, second, third, and fourth side surfaces and first and second ends; a metalized trace coupled to a center point of the first metalization pattern and extending about said first, second, third, and fourth side surfaces, said metalized trace providing a center tap element for the inductor; and said surface mountable inductor being mountable upon any of the first, second, third, and fourth side surfaces interchangeably between the first and second ends. - View Dependent Claims (2, 3)
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4. A surface mount inductor, comprising:
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an inner substrate layer having first and second metalization patterns disposed upon first and second opposed surfaces, said first and second metalization patterns interconnected by vias to form a multi-turn coil; first and second outer substrate layers disposed on the first and second opposed surfaces; said inner substrate layer and first and second outer substrate layers forming a structure having first, second, third, and fourth side surfaces and first and second ends; and a plurality of metalized traces tapping off the vias and extending about the first, second, third, and fourth side surfaces to provide a multi-tapped inductor, said multi-tapped inductor being mountable upon any of the first, second, third, and fourth side surfaces. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A surface mountable inductor, comprising:
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a plurality of substrate layers including at least one inner substrate layer and first and second outer substrate layers, said plurality of substrate layers forming a six sided structure having first and second ends and first, second, third and fourth side surfaces, said at least one inner substrate layer having first and second opposed surfaces; a first metalization pattern disposed on the first opposed surface of the inner layer the substrate; a second metalization pattern disposed on the second opposed surface of the at least one inner substrate layer; plated through-holes located through the at least one inner substrate layer, said plated through-holes interconnecting the first and second metalization patterns to form a multi-turn coil having first and second ends coupled to the first and second ends of the six sided structure; a tap point disposed onto the at least one inner substrate layer and coupled the multi-turn coil; a tap element disposed about the first, second, third, and fourth side surfaces between the shielding portion and the first end of the six sided structure, said tap element coupled to said tap point; and a shielding portion disposed about the first, second, third, and fourth side surfaces of the six sided structure between predetermined portions of the tapped elements. - View Dependent Claims (11, 12, 13)
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14. A surface mountable inductor, comprising:
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a plurality of substrate layers including at least one inner substrate layer and first and second outer substrate layers, said plurality of substrate layers forming a six sided structure having first and second ends and first, second, third and fourth sides, said at least one inner substrate layer having top and bottom surfaces; a first metalization pattern disposed on the top surface of the at least one inner layer the substrate; a second metalization pattern disposed on the bottom surface of the at least one inner substrate layer; plated through-holes located through the at least one inner substrate layer, said plated through-holes interconnecting the first and second metalization patterns to form a multi-turn coil, said multi-turn coil being formed in quarter turn increments; and a conductive tap element disposed on at least one of the first, second, third or fourth sides of the six sided structure, said conductive tap element tapping off one quarter turn increment. - View Dependent Claims (15, 16)
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17. A surface mountable inductor, comprising:
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a plurality of substrate layers including at least one inner substrate layer and first and second outer substrate layers, said plurality of substrate layers forming a six sided structure having first and second ends and first, second, third and fourth sides, said at least one inner substrate layer having first and second opposed surfaces; a first metalization pattern disposed on the first opposed surface of the at least one inner substrate layer; a second metalization pattern disposed on the second opposed surface of the at least one inner substrate layer; plated through-holes located on the inner substrate layer, said plated through-holes interconnecting the first and second metalization patterns to form a multi-turn coil; and a first conductive tap element disposed about the first, second, third and fourth sides of the six sided structure, said first conductive tap element coupled to a predetermined increment of the multi-turn coil. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A surface mountable inductor, comprising:
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a plurality of substrate layers including at least one inner substrate layer and first and second outer substrate layers, said plurality of substrate layers forming a six sided structure having first and second ends and first, second, third and fourth sides, said at least one inner substrate layer having first and second opposed surfaces; a metalization pattern disposed on the first opposed surface of the at least one inner substrate layer; through-holes plated through the at least one inner substrate layer, said through-holes interconnecting the metalization pattern to said first and second ends; and a conductive tap element disposed about the first, second, third and fourth sides of the six sided structure, said conductive tap element tapping off the metalization pattern, the surface mountable inductor being surface mountable upon any of its first, second, third, and fourth sides. - View Dependent Claims (24, 25)
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Specification