Method of forming a structure for supporting an integrated circuit chip
First Claim
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1. A method of forming a structure for supporting an integrated circuit chip, which chip may be affected by external magnetic fields, said method comprising:
- forming a substrate;
forming an insulating layer over said substrate;
providing a support surface for an integrated circuit chip, said substrate, insulating layer and support surface forming part of a chip carrier; and
supporting an integrated circuit chip with said chip carrier, said chip carrier having a top and bottom surface, wherein a layer of magnetic field shielding material is formed on said integrated circuit chip, and wherein a second layer of magnetic field shielding material is formed on a bottom of said chip.
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Abstract
A method and apparatus which provide one or more electromagnetic shield layers for integrated circuit chips containing electromagnetic circuit elements are disclosed. The shield layers may be in contact with the integrated circuit chip, including magnetic memory structures such as MRAMs, or in a flip-chip carrier, or both. A printed circuit board which supports the chip may also have one or more shield layers.
24 Citations
28 Claims
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1. A method of forming a structure for supporting an integrated circuit chip, which chip may be affected by external magnetic fields, said method comprising:
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forming a substrate;
forming an insulating layer over said substrate;
providing a support surface for an integrated circuit chip, said substrate, insulating layer and support surface forming part of a chip carrier; and
supporting an integrated circuit chip with said chip carrier, said chip carrier having a top and bottom surface, wherein a layer of magnetic field shielding material is formed on said integrated circuit chip, and wherein a second layer of magnetic field shielding material is formed on a bottom of said chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of forming a structure for supporting an integrated circuit chip, which chip may be affected by external magnetic fields, said method comprising:
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forming a substrate;
forming an insulating layer over said substrate;
forming an elastomeric layer over said insulating layer, said substrate, insulating layer, and elastomeric layer forming part of a flip-chip carrier; and
electrically coupling a chip with said flip-chip carrier, said chip having a top and bottom surface, wherein said chip further comprises a layer of magnetic field shielding material formed on said top surface, and wherein a second layer of magnetic field shielding material is provided on the bottom surface of said chip. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of forming a structure for supporting an integrated circuit chip, which chip may be affected by external magnetic fields, said method comprising:
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forming a substrate;
forming an insulating layer over said substrate;
providing a support surface for an integrated circuit chip, said substrate, insulating layer and support surface forming part of a chip carrier; and
supporting an integrated circuit chip with said chip carrier, said chip carrier having a top and bottom surface, wherein a layer of magnetic field shielding material is formed on said integrated circuit chip, and wherein a second layer of magnetic field shielding material is formed on said chip carrier.
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Specification