Integrated package and methods for making same
First Claim
1. A structure comprising:
- a substrate having a top surface; and
at least one semiconductor integrated circuit embedded in said substrate, each of said at least one semiconductor integrated circuit containing conductive pads on one surface thereof, each of said at least one semiconductor integrated circuit being embedded in said substrate such that the conductive pads on the integrated circuit face outward and are visible along with said top surface.
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Accused Products
Abstract
One or more integrated circuit chips each containing conductive pads on one surface, are embedded in a substrate such that the conductive pads are exposed and the one surface of each chip is substantially coplanar with a top surface of the substrate. Electrically conductive material is placed over the one surface, including conductive pads, of each chip and the top surface of the substrate and patterned, using standard semiconductor or printed circuit photolithographic and processing techniques to form an electrically conductive interconnect pattern connecting the one or more integrated circuit chips into an electronic system. When a single integrated circuit chip is to be embedded in a substrate, the invention makes possible the simultaneous manufacture of a plurality of such packaged integrated circuit chips in a single large substrate using standard semiconductor or printed circuit photolithographic and processing techniques and then singulating the large substrate into a plurality of smaller substrates, each containing a single integrated circuit chip. Likewise, when more than one integrated circuit chip is embedded in a substrate, a plurality of such structures can be manufactured in a single large substrate and then singulated into a plurality of smaller substrates, each containing more than one integrated circuit chip. A plurality of substrates with embedded integrated circuit chips can be stacked to form a composite multichip, multi-layered structure. Additional chips, packaged or unpackaged, can be placed on the top of this composite structure.
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Citations
118 Claims
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1. A structure comprising:
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a substrate having a top surface; and
at least one semiconductor integrated circuit embedded in said substrate, each of said at least one semiconductor integrated circuit containing conductive pads on one surface thereof, each of said at least one semiconductor integrated circuit being embedded in said substrate such that the conductive pads on the integrated circuit face outward and are visible along with said top surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 87)
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13. The method of fabricating a packaged semiconductor chip which comprises:
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providing a substrate;
forming a cavity in said substrate, said cavity having the lateral dimensions of an integrated circuit chip to be placed in said cavity;
placing an integrated circuit chip in said cavity, said integrated circuit chip having lateral dimensions substantially the same as those of the cavity, and having a top surface containing thereon electrically conductive pads for use in electrically contacting the circuitry formed in said integrated circuit chip, said pads on the surface of said integrated circuit chip being visible in said cavity;
forming a layer of conductive material over the top surface of said integrated circuit chip, said electrically conductive pads and the top surface of said substrate; and
forming said electrically conductive material into an electrically conductive interconnect pattern selectively interconnecting said pads to form an electrical circuit. - View Dependent Claims (14, 15, 16)
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17. The method of fabricating a monolithic integrated structure containing one or more integrated circuit chips embedded in a substrate comprising:
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placing the one or more integrated circuit chips to be embedded in said substrate in a template;
pressing the template against the top surface of the substrate in which the one or more integrated circuit chips are to be embedded;
heating the substrate so as to soften the material making up the substrate;
pressing the one or more integrated circuit chips placed on the top surface of said substrate into the softened material of the substrate using a planarizing plate until the top surfaces of said one or more integrated circuit chips are substantially coplanar with the top surface of said substrate; and
allowing the substrate containing the one or more integrated circuit chips to cool. - View Dependent Claims (18, 19, 20, 21)
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22. Structure comprising:
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a substrate having a top surface;
at least one cavity formed in said substrate adjacent said top surface; and
at least one integrated circuit chip placed in said at least one cavity so that each of said at least one integrated circuit chip has a visible surface approximately coplanar with the top surface of said substrate. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 80, 81, 82, 83, 84, 85, 86, 88, 89, 91, 92, 95, 96, 97, 98)
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32. The method of fabricating a substrate having a top surface which comprises:
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forming a plurality of cavities in said substrate, each said cavity having an opening in said top surface;
placing a corresponding plurality of integrated circuit chips in said plurality of cavities such that a visible surface of each of said integrated circuit chips is substantially coplanar with said top surface, each of said integrated circuit chips having a plurality of electrically conductive pads formed on its visible surface;
forming a conductive layer on the top surface of said substrate, on the visible surfaces of said integrated circuit chips and on the plurality of conductive pads on each visible surface; and
patterning the conductive layer to form a conductive interconnect to interconnect the integrated circuit chips into a desired circuit. - View Dependent Claims (33, 90, 93, 94)
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59. A structure made of thermoplastic or thermo-set plastic or a composite thereof, comprising:
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a substrate having a top surface;
at least one cavity formed in said substrate, said cavity having lateral dimensions representative of the lateral dimensions of an integrated circuit chip to be placed in said cavity;
an integrated circuit chip placed in one of said at least one cavity such that one surface of said integrated circuit chip is approximately co-planar with the top surface of said substrate; and
an electrically conductive layer formed over the top surface of said substrate and the approximately co-planar one surface of said integrated circuit chip. - View Dependent Claims (60)
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61. The method of fabricating a structure containing a plurality of integrated circuit chips which comprises:
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placing a plurality of integrated circuit chips in a template, each integrated circuit chip having one surface directly adjacent said template upon which has been formed a plurality of electrically conductive pads;
placing said template adjacent a substrate of heat-softenable material such that the surface of each integrated circuit chip opposite said one surface is in contact with said substrate;
heating said substrate so as to allow each integrated circuit chip to adhere to said substrate;
removing said template and placing a planarizing plate adjacent the surfaces of said integrated circuit chips containing said electrically conductive pads;
heating said substrate so as to soften the material of said substrate; and
using the planarizing plate to press said integrated circuit chips into the softened material of said substrate until the top surface of each of the integrated circuit chips is approximately coplanar with the top surface of said substrate thereby to create an embedded structure. - View Dependent Claims (62, 63, 100, 101, 102)
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64. The method of fabricating a monolithic integrated structure containing a plurality of integrated circuit chips which comprises:
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placing the plurality of integrated circuit chips adjacent a planarizing plate;
causing said integrated circuit chips to attach to said planarizing plate;
placing said planarizing plate with said integrated circuit chips attached thereto into an injection mold; and
injecting plastic material into said injection mold such that said plastic material surrounds each of said integrated circuit chips thereby to form an integrated structure holding each of said integrated circuit chips in fixed relationship to each other. - View Dependent Claims (65, 66, 67, 99)
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68. The method of fabricating a monolithic integrated structure containing one or more integrated circuit chips, which comprises:
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providing a substrate;
picking one or more integrated circuit chips from a source of said integrated circuit chips and placing each of said one or more integrated circuit chips in a corresponding location on said substrate such that each said integrated circuit chip so placed is properly oriented in accordance with a planned orientation; and
causing each said integrated circuit chip to be adherently held in position on said substrate. - View Dependent Claims (69, 70)
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71. The method of fabricating a monolithic integrated structure containing one or more integrated circuit chips which comprises:
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providing a substrate having a top surface thereon;
providing a template with openings in one surface thereof for receipt of one or more integrated circuit chips;
picking one or more integrated circuit chips from a source of such integrated circuit chips and placing each of said one or more integrated circuit chips in a corresponding opening in said template such that each said integrated circuit chip so placed is properly oriented in accordance with a planned orientation; and
placing said template adjacent said substrate such that the one or more integrated circuit chips in said template are placed in corresponding locations on said substrate. - View Dependent Claims (72, 73, 74)
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75. The method of fabricating a monolithic integrated structure containing one or more integrated circuit chips which comprises:
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providing a substrate having a top surface;
providing one or more cavities in said substrate, said one or more cavities opening to said top surface;
providing a source of one or more integrated circuit chips;
picking and placing selected ones of said one or more integrated circuit chips from said source into corresponding ones of said one or more cavities; and
causing said one or more integrated circuit chips to be firmly held in said one or more cavities. - View Dependent Claims (76, 77, 78, 79)
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103. A module comprising;
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a plurality of substrates, each substrate having a top surface; and
a plurality of integrated circuit die, each die being embedded in a corresponding substrate of a heat deformable material to form a structure such that the top surface of each said die is substantially coplanar with the top surface of the substrate in which it is placed, at least two such substrates being arranged one on top of the other. - View Dependent Claims (104, 105, 106, 107, 108, 109, 110, 111, 112)
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113. Structure comprising:
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a substrate having a top surface;
at least one integrated circuit chip embedded in said substrate so that said at least one integrated circuit chip has a visible surface approximately coplanar with the top surface of said substrate; and
a conductive plane formed in said substrate beneath said at least one integrated circuit chip, said conductive plane being capable of functioning as a ground plane, Vcc or RF shield. - View Dependent Claims (114, 115, 116, 117, 118)
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Specification