Covering sheet, triplate line using the sheet, signal bus for computer using the sheet and covering structure of electronic circuit using the sheet
First Claim
Patent Images
1. A covering sheet comprising:
- at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein;
a ground conductor layer laminated on one surface of said magnetic material layer, one surface of said ground conductor layer being exposed to a free space; and
a plurality of via holes for passing conducting means for grounding said ground conductor layer to a ground path of a signal bus covered by the covering sheet, said ground conductor layer, said signal bus and said ground path forming a triplate line structure.
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Accused Products
Abstract
The covering sheet includes at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein, a ground conductor layer laminated on one surface of the magnetic material layer, and a plurality of via holes for passing conducting unit for grounding the ground conductor layer, or includes a laminate consisting of at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein and at least one dielectric layer having a permittivity lower than that of the magnetic material layer, and a ground conductor layer laminated on one surface of the laminate.
11 Citations
22 Claims
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1. A covering sheet comprising:
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at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein;
a ground conductor layer laminated on one surface of said magnetic material layer, one surface of said ground conductor layer being exposed to a free space; and
a plurality of via holes for passing conducting means for grounding said ground conductor layer to a ground path of a signal bus covered by the covering sheet, said ground conductor layer, said signal bus and said ground path forming a triplate line structure. - View Dependent Claims (2)
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3. A covering sheet comprising:
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a laminate consisting of at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein and at least one dielectric layer having a permittivity lower than that of said magnetic material layer;
a ground conductor layer laminated on one surface of said laminate, one surface of said ground conductor layer being exposed to a free space; and
a plurality of via holes for passing conducting means for grounding said ground conductor layer to a ground path of a signal bus covered by the covering sheet, said ground conductor layer, said signal bus and said ground path forming a triplate line structure. - View Dependent Claims (4, 5, 6, 7)
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8. A triplate line bus including an insulator circuit board, a micro-strip line formed on one surface of said insulator circuit board, a ground conductor formed on the other surface of said insulator circuit board, and a covering sheet covering said micro-strip line with a ground conductor positioned outside,
said covering sheet comprising at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein, a ground conductor layer laminated on one surface of said magnetic material layer, one surface of said ground conductor layer being exposed to a free space, and a plurality of via holes for passing conducting means for grounding said ground conductor layer, said ground conductor being electrically connected to said ground conductor, said ground conductor layer, said micro-strip line and said ground conductor forming a triplate line structure.
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9. A signal bus for a computer having a triplate line structure, including an insulator circuit board, a micro-strip line formed on one surface of said insulator circuit board, a ground conductor formed on the other surface of said insulator circuit board, and a covering sheet applied on said micro-strip line with said ground conductor positioned outside,
said covering sheet comprising at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein, a ground conductor layer laminated on one surface of said magnetic material layer, one surface of said ground conductor layer being exposed to a free space, and a plurality of via holes for passing conducting means for grounding said ground conductor layer to said ground conductor, said ground conductor layer, said micro-strip line and said ground conductor forming a triplate line structure.
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10. A covering sheet comprising:
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a magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein;
a dielectric layer being laminated on said magnetic material layer with one surface of the dielectric layer adjacent to said magnetic material layer and having a permittivity lower than that of said magnetic material layer; and
a ground conductor layer laminated on the other side of said dielectric layer;
one surface of said ground conductor layer being exposed to a free space; and
a plurality of via holes for passing conducting means for grounding said ground conductor layer to a ground path of a signal bus covered by the covering sheet, said ground conductor layer, said signal bus and said ground path forming a triplate line structure. - View Dependent Claims (11, 12)
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13. A triplate line bus including an insulator circuit board, a micro-strip line formed on one surface of said insulator circuit board, a first covering sheet covering said micro-strip line, and a second covering sheet covering the other surface of said insulator circuit board,
said first or second covering sheet comprising a laminate consisting of at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein and at least one dielectric layer having a permittivity lower than that of said magnetic material layer, and a ground conductor layer laminated on one surface of said laminate, one surface of said ground conductor layer being exposed to a free space, said ground conductor layers of said first and second covering sheets being electrically connected to a ground conductor of said insulator circuit boards, said ground conductor layer, said micro-strip line and said ground conductor forming a triplate line structure.
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16. A covering structure of electronic circuits, including an insulator circuit board, an electronic circuit formed on one surface of said insulator circuit board, a ground conductor formed on the other surface of said insulator circuit board, and a covering sheet covering said electronic circuit,
said covering sheet comprising a laminate consisting of at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein and at least one dielectric layer having a permittivity lower than that of said magnetic material layer, and a ground conductor layer laminated on one surface of said laminate, one surface of said ground conductor layer being exposed to a free space, said ground conductor layer being electrically connected to said ground conductor, said ground conductor layer, said electronic circuit and said ground path forming a triplate line structure.
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19. A triplate line bus including an insulator circuit board, a micro-strip line formed on one surface of said insulator circuit board, a ground conductor formed on the other surface of said insulator circuit board, and a covering sheet covering said micro-strip line with said ground conductor positioned outside,
said covering sheet comprising a laminate consisting of at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein and at least one dielectric layer having a permittivity lower than that of said magnetic material layer, and a ground conductor layer laminated on one surface of said laminate, one surface of said ground conductor layer being exposed to a free space, said ground conductor layer being electrically connected to said ground conductor, said ground conductor layer, said micro-strip line and said ground conductor forming a triplate line structure.
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22. A triplate line bus including an insulator circuit board, a micro-strip line formed on one surface of said insulator circuit board, a first covering sheet covering said micro-strip line, and a second covering sheet covering the other surface of said insulator circuit board,
said first or second covering sheet comprising at least one magnetic material layer made of a resin compound having an oxide magnetic material or a metal magnetic material mixed therein, a ground conductor layer laminated on one surface of said magnetic material layer, one surface of said ground conductor layer being exposed to a free space, and a plurality of via holes for passing conducting means for grounding said ground conductor layer to a ground conductor of said insulator circuit board, said ground conductor layer, said micro-strip line and said ground conductor forming a triplate line structure.
Specification