Inverted chip bonded module with high packaging efficiency
First Claim
Patent Images
1. An electronic module for packaging at least one semiconductor device comprising:
- a rigid, planar, inorganic, insulating substrate;
the substrate having thereon a metallic, conductive pattern of one or more conductive pattern layers;
the substrate having metal contacts, the contacts being connected to the conductive pattern, and being capable of making electrical connection to another electronic package or a higher level of electronic packaging;
the conductive pattern layer(s) being separated by insulating layer(s);
the conductive pattern layers being interconnected by metal filled vias in the insulating layers;
an outermost, conductive pattern layer having metal protuberances less than 150 μ
m (6 mils) in diameter protruding 5-80 μ
m (0.2-3 mils) above the surface of the outermost layer, and the metal protuberances being a soft, ductile metal capable of being metallurgically bonded to input/output pads of the semiconductor device(s), andthe metal protuberances being capable of providing input/output connections for the semiconductor devices through the connections to the conductive pattern of the electronic packaging module and through the metal contacts to another electronic package or electronic assembly.
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Abstract
An electronic packaging module for inverted bonding of semiconductor devices, integrated circuits, and/or application specific integrated circuits is produced with protuberances on the conductive pattern of the substrate. The protuberances are of a soft, ductile metal capable of being metallurgically bonded to the input/output pads of semiconductor devices. The input/output pads of the semiconductor devices are simultaneously bonded to the protuberances of the packaging module.
176 Citations
26 Claims
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1. An electronic module for packaging at least one semiconductor device comprising:
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a rigid, planar, inorganic, insulating substrate; the substrate having thereon a metallic, conductive pattern of one or more conductive pattern layers; the substrate having metal contacts, the contacts being connected to the conductive pattern, and being capable of making electrical connection to another electronic package or a higher level of electronic packaging; the conductive pattern layer(s) being separated by insulating layer(s); the conductive pattern layers being interconnected by metal filled vias in the insulating layers; an outermost, conductive pattern layer having metal protuberances less than 150 μ
m (6 mils) in diameter protruding 5-80 μ
m (0.2-3 mils) above the surface of the outermost layer, and the metal protuberances being a soft, ductile metal capable of being metallurgically bonded to input/output pads of the semiconductor device(s), andthe metal protuberances being capable of providing input/output connections for the semiconductor devices through the connections to the conductive pattern of the electronic packaging module and through the metal contacts to another electronic package or electronic assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a circuit module suitable for use as a first level package for at least one semiconductor device, the module having a planar, insulating, ceramic substrate that has a metallic, conductive pattern of one or more conductive pattern layers;
- the conductive pattern comprising thick or thin film metal layers separated by insulating layer(s);
the conductive pattern layers being interconnected by metal filled vias in the insulating layers, and the substrate having metal contacts, the contacts being connected to the conductive pattern, and being capable of making electrical connection to another electronic package or a higher level of electronic packaging, the improvement comprising;an outermost, conductive pattern layer having metal protuberances less than 150 μ
m (6 mils) in diameter protruding 5-80 μ
m (0.2-3 mils) above the surface of the layer, and the metal protuberances being a soft, ductile metal capable of being metallurgically bonded to the input/output pads of a semiconductor device, andthe metal protuberances being capable of metallurgically bonding to the input/output pads of a semiconductor device and connecting the input/output pads of the semiconductor device to the conductive pattern of the electronic packaging module and through the metal contacts to another module or the next level electronic package. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
- the conductive pattern comprising thick or thin film metal layers separated by insulating layer(s);
Specification