Semiconductor device and method for manufacturing the same
First Claim
1. A semiconductor device in which a plurality of semiconductor chips is stacked in layers and sealed in a package, wherein:
- an upper-layer semiconductor chip is stacked via a plurality of spacers on a lower-layer semiconductor chip;
at least one of said plurality of spacers is formed on said lower-layer semiconductor chip; and
said upper-layer semiconductor chip, said plurality of spacers, and said lower-layer semiconductor chip are sealed in said package.
3 Assignments
0 Petitions
Accused Products
Abstract
There is provided a semiconductor device in which a plurality of semiconductor chips is stacked in layers and sealed in a package, including: a lower-layer semiconductor chip which is mounted on a package board; an upper-layer semiconductor chip which is stacked via a plurality of spacers on the lower-layer semiconductor chip; at least one first conductor interconnecting electrically at least one first electrode on the lower-layer semiconductor chip and at least one first internal terminal on the package board; at least one second conductor electrically interconnecting at least one second electrode on the upper-layer semiconductor chip and at least one second internal terminal on the package board; and the package for sealing therein the lower-layer semiconductor chip, the upper-layer semiconductor chip, and the at least one first conductor and the at least one second conductor which are all on the package board.
75 Citations
39 Claims
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1. A semiconductor device in which a plurality of semiconductor chips is stacked in layers and sealed in a package, wherein:
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an upper-layer semiconductor chip is stacked via a plurality of spacers on a lower-layer semiconductor chip;
at least one of said plurality of spacers is formed on said lower-layer semiconductor chip; and
said upper-layer semiconductor chip, said plurality of spacers, and said lower-layer semiconductor chip are sealed in said package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A semiconductor device in which a plurality of semiconductor chips is stacked in layers and sealed in a package, comprising:
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a lower-layer semiconductor chip which is mounted on a package board;
an upper-layer semiconductor chip which is stacked via a plurality of spacers on said lower-layer semiconductor chip;
at least one first conductor interconnecting electrically at least one first electrode on said lower-layer semiconductor chip and at least one first internal terminal on said package board;
at least one second conductor electrically interconnecting at least one second electrode on said upper-layer semiconductor chip and at least one second internal terminal on said package board; and
said package sealing therein said lower-layer semiconductor chip, said upper-layer semiconductor chip, and said at least one first conductor and said at least one second conductor which are all on said package board. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A semiconductor device manufacturing method for stacking a plurality of semiconductor chips in layers and sealing said plurality of semiconductor chips in a package, comprising the steps of:
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forming a plurality of spacers on a lower-layer semiconductor chip;
stacking an upper-layer semiconductor chip via said plurality of spacers on said lower-layer semiconductor chip; and
sealing said lower-layer semiconductor chips, said plurality of spacers, and said upper-layer semiconductor chip in an insulating material making up said package.
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29. A semiconductor device manufacturing method for stacking a plurality of semiconductor chips in layers and sealing said plurality of semiconductor chips in a package, comprising:
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a lower-layer semiconductor chip mounting step of mounting a lower-layer semiconductor chip on a package board;
a first connecting step of interconnecting electrically at least one first internal terminal on said package board and at least one first electrode on said lower-layer semiconductor chip using at least one first conductor;
a spacer formation step of forming a plurality of spacers on said lower-layer semiconductor chip;
an upper-layer semiconductor chip stacking step of stacking an upper-layer semiconductor chip via said plurality of spacers on said lower-layer semiconductor chip;
a second connecting step of interconnecting electrically at least one second internal terminal on said package board and at least one second electrode on said upper-layer semiconductor chip using at least one second conductor; and
a sealing step of sealing said lower-layer semiconductor chip, said upper-layer semiconductor chip, and said at least one first conductor and said at least one second conductor in an insulating material making up said package. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification