Semiconductor device and memory device
View Patent ↗A semiconductor device includes a substrate, a controller chip, and memory chips. Wiring is formed on the substrate. The controller chip has a rectangular surface area, and is mounted on the substrate. The memory chips have quadrangular surface areas, and are superposed on the substrate on a first major side of the controller chip. The first major side defines a first direction and a first controller terminal block is formed along a first minor side thereof orthogonal to the first direction, and a second controller terminal block is formed along a second major side opposite to the first major side.
1. A semiconductor device comprising:
a substrate having wiring formed thereon;
a controller chip having a rectangular shape in plan view mounted on the substrate so that a first major surface is opposite to the substrate; and
a plurality of memory chips having a quadrangular shape in plan view sequentially stacked on the substrate,
wherein a first direction is defined along a first major side of the controller chip in plan view, and a first controller terminal block is formed on the first major surface of the controller chip along a first minor side of the controller chip in a direction orthogonal to the first direction, and a second controller terminal block is formed on the first major surface of the controller chip along a second major side opposite to the first major side, and wherein
the plurality of memory chips include a first memory chip having a first memory terminal block formed along one side thereof that is orthogonal to the first direction, and a second memory chip having a second memory terminal block formed along one side thereof that is orthogonal to the first direction,
the first memory chip and the controller chip are electrically connected through the first memory terminal block and the first controller terminal block by the wiring, and
the second memory chip and the controller chip are electrically connected through the second memory terminal block and the second controller terminal block by the wiring.
2. The semiconductor device according to claim 1 , wherein
a first circuit area formed on the controller chip which controls the first controller terminal block and a second circuit area formed on the controller chip which controls the second controller terminal block are separated by a ground line.
3. The semiconductor device according to claim 1 , wherein
a distance between a side of the first memory terminal block opposite to the controller chip is less than a distance between a side of the first memory terminal block adjacent to the controller chip, and
a distance between a side of the second memory terminal block adjacent to the controller chip is less than a distance between a side of the second memory terminal block opposite to the controller chip.
4. The semiconductor device according to claim 3 , wherein
a first circuit area formed on the controller chip which controls the first controller terminal block and a second circuit area formed on the controller chip which controls the second controller terminal block are separated by a ground line to segregate power from other circuit areas.
5. The semiconductor device according to claim 1 , wherein
a third controller terminal block is formed along the first major side on the first major surface of the controller chip,
an external terminal is formed on the substrate, and
the external terminal and the controller chip are electrically connected by the wiring and the third controller terminal block.
6. The semiconductor device according to claim 5 , wherein
a first circuit area formed on the controller chip which controls the first controller terminal block and a second circuit area formed on the controller chip which controls the second controller terminal block are separated by a ground line to segregate power from other circuit areas.
7. The semiconductor device according to claim 1 , wherein
the wiring that electrically connects the second memory chip and the controller chip passes between the substrate and the controller chip.
8. The semiconductor device according to claim 7 , wherein
a first circuit area formed on the controller chip which controls the first controller terminal block and a second circuit area formed on the controller chip which controls the second controller terminal block are separated by a ground line.
9. The semiconductor device according to claim 7 , wherein
a distance between a side of the first memory terminal block opposite to the controller chip is less than a distance between a side of the first memory terminal block adjacent to the controller chip, and
a distance between a side of the second memory terminal block adjacent to the controller chip is less than a distance between a side of the second memory terminal block opposite to the controller chip.
10. A semiconductor device comprising:
a substrate having wiring formed thereon;
a controller chip having a rectangular shape in plan view mounted on the substrate so that a first major surface is opposite to the substrate; and
a plurality of memory chips having a quadrangular shape in plan view sequentially stacked on the substrate,
wherein a first direction is defined along a first major side of the controller chip in plan view, and a first controller terminal block is formed on the first major surface of the controller chip along a first minor side of the controller chip in a direction orthogonal to the first direction, and a second controller terminal block is formed on the first major surface of the controller chip along a second major side opposite to the first major side, and wherein
a third controller terminal block is formed along the first major side on the first major surface of the controller chip,
an external terminal is formed on the substrate, and
the external terminal and the controller chip are electrically connected by the wiring and the third controller terminal block.
11. A semiconductor device comprising:
a substrate having wiring formed thereon;
a controller chip having a rectangular shape in plan view mounted on the substrate so that a first major surface is opposite to the substrate; and
a plurality of memory chips having a quadrangular shape in plan view sequentially stacked on the substrate,
wherein a first direction is defined along a first major side of the controller chip in plan view, and a first controller terminal block is formed on the first major surface of the controller chip along a first minor side of the controller chip in a direction orthogonal to the first direction, and a second controller terminal block is formed on the first major surface of the controller chip along a second major side opposite to the first major side, and wherein
a first circuit area formed on the controller chip to control the first controller terminal block, and a second circuit area formed on the controller chip to control the second controller terminal block, are separated by a ground.
12. A semiconductor device comprising:
a substrate having wiring formed thereon;
a controller chip having a rectangular shape in plan view mounted on the substrate so that a first major surface is opposite to the substrate; and
a plurality of memory chips having a quadrangular shape in plan view sequentially stacked on the substrate,
wherein a first direction is defined along a first major side of the controller chip in plan view, and a first controller terminal block is formed on the first major surface of the controller chip along a first minor side of the controller chip in a direction orthogonal to the first direction, and a second controller terminal block is formed on the first major surface of the controller chip along a second major side opposite to the first major side, and wherein
the plurality of memory chips include a first memory chip and a second memory chip;
the first controller terminal block and the memory terminal block of the first memory chip include data input/output terminals interconnected by wires extending from a terminal on a side of the first memory, and
the second controller terminal block and the memory terminal block of the second memory chip have data input/output terminals interconnected by wires from a terminal on a side that is adjacent to a corner where the first minor side and the second major side intersect each other for the second controller terminal block, and from a terminal on a side opposing the controller chip.
13. A semiconductor device comprising:
a substrate having a mounting surface and a back surface opposing the mounting surface;
a controller chip having a first major surface and a rectangular shape in plan view mounted on the substrate opposing the back surface of the substrate; and
a plurality of memory chips having a quadrangular shape in plan view are sequentially stacked on the mounting surface of the substrate,
wherein a first direction is defined along a first major side of the controller chip in plan view, and a first controller terminal block is formed on the first major surface of the controller chip along a first minor side of the controller chip in a direction orthogonal to the first direction, and a second controller terminal block is formed on the first major surface of the controller chip along a second major side opposite to the first major side, and
wherein the first major side of the controller chip faces the plurality of memory chips.
14. The semiconductor device according to claim 13 , wherein
the plurality of memory chips include a first memory chip and a second memory chip, each of the first memory chip and second memory chip having respective terminal blocks that are disposed in an opposing relation to each other.
15. The semiconductor device according to claim 14 , wherein
the wiring that electrically connects the second memory chip and the controller chip passes between the substrate and the controller chip.
16. The semiconductor device according to claim 14 , wherein
a first circuit area formed on the controller chip which controls the first controller terminal block and a second circuit area formed on the controller chip which controls the second controller terminal block are separated by a ground line to segregate power from adjacent circuit areas.
17. The semiconductor device according to claim 13 , wherein
a distance between a side of the first memory terminal block opposite to the controller chip is less than a distance between a side of the first memory terminal block adjacent to the controller chip, and
a distance between a side of the second memory terminal block adjacent to the controller chip is less than a distance between a side of the second memory terminal block opposite to the controller chip.
18. The semiconductor device according to claim 17 , wherein
a third controller terminal block is formed along the first major side on the first major surface of the controller chip,
an external terminal is formed on the substrate, and
the external terminal and the controller chip are electrically connected by a wiring and the third controller terminal block.
19. A memory device comprising:
a substrate having wiring and an external terminal formed thereon;
a semiconductor control element which has a rectangular shape in plan view mounted on the substrate so that a major surface thereof is opposite to the a back surface of the substrate;
a first nonvolatile semiconductor storage element which has a quadrangular shape in plan view mounted on a side of the substrate opposite to the back surface of the substrate; and
a second nonvolatile semiconductor storage element which has a quadrangular shape in a plan view superposed on the first nonvolatile semiconductor storage element, wherein
a first direction is defined along a first major side of the semiconductor control element in the plan view,
a first control element terminal block is formed on a surface of the semiconductor control element along one first minor side thereof that is orthogonal to the first direction, a second control element terminal block is formed on a surface of the semiconductor control element along a second major side opposite to the first major side, and a third control element terminal block is formed on a surface of the semiconductor control element along the first major side thereof,
a first storage element terminal block is formed on a surface of the first nonvolatile semiconductor storage element along a first side thereof that is orthogonal to the first direction,
a second storage element terminal block is formed on a surface of the second nonvolatile semiconductor storage element along a second side thereof that is orthogonal to the first direction,
the first nonvolatile semiconductor storage element and the semiconductor control element are electrically connected through the first storage element terminal block, the wiring and the first control element terminal block,
the second nonvolatile semiconductor storage element and the semiconductor control element are electrically connected through the second storage element terminal block, the wiring and the second control element terminal block,
the external terminal and the semiconductor control element are electrically connected through the wiring and the third control element terminal block, and
the first major side of the semiconductor control element faces the first and second nonvolatile storage elements.