Magnetic memory device
AssigneeToshiba Memory Corporation
InventorTakeshi FUJIMORI
Life of this patent
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Abstract
According to one embodiment, a magnetic memory device includes a magnetic memory chip having a magnetoresistive element, a magnetic layer having first and second portions spacing out each other, the first portion covering a first main surface of the magnetic memory chip, the second portion covering a second main surface facing the first main surface of the magnetic memory chip, a circuit board on which the magnetic layer is mounted, and a bonding wire connecting between the magnetic memory chip and the circuit board in a first direction parallel to the first and second main surfaces.
Claims20
A magnetic memory device comprising:
- a magnetic memory chip having a magnetoresistive element;
- a magnetic layer having first and second portions spacing out each other, the first portion covering a first main surface of the magnetic memory chip, the second portion covering a second main surface facing the first main surface of the magnetic memory chip;
- a circuit board on which the magnetic layer is mounted;
- and
- a bonding wire connecting between the magnetic memory chip and the circuit board in a first direction parallel to the first and second main surfaces,
- wherein the first portion is nearer the circuit board than the second portion,
- each of the first and second portions has a size larger than a size of the magnetic memory chip in the first direction, and
- one of the first and second portions covers side surfaces of the magnetic memory chip in a second direction parallel to the first and second main surfaces and orthogonal to the first direction.
The device of claim. 1, wherein
- a circuit board includes an external terminal connected to the magnetic memory chip through the bonding wire.
A magnetic memory device comprising:
- a magnetic memory chip having a magnetoresistive element;
- a magnetic layer having first and second portions spacing out each other, the first portion covering a first main surface of the magnetic, memory chip, the second portion covering a second main surface facing the first main surface of the magnetic memory chip;
- a circuit board on which the magnetic layer is mounted;
- and
- a bonding wire connecting between the magnetic memory chip and the circuit board in a first direction parallel to the first and second main surfaces,
- wherein the second portion is nearer the circuit board than the first portion,
- the first portion has a size larger than a size of the magnetic memory chip in the first direction, and
- the second portion has a size smaller than a size of the magnetic memory chip in the first direction.
A magnetic memory device comprising:
- a magnetic memory chip having a magnetoresistive element;
- a magnetic layer having first and second portions spacing out each other, the first portion covering a first main surface of the magnetic memory chip, the second portion covering a second main surface facing the first main surface of the magnetic memory chip;
- a circuit board on -which the magnetic layer is mounted;
- a bonding wire connecting between the magnetic memory chip and the circuit board in a first direction parallel to the first and second main surfaces;
- and
- a permanent magnet being adjacent to one of the first and second main surfaces of the magnetic memory chip,
- wherein each of the first and second portions has a size larger than a size of the magnetic memory chip in the first direction.
Dependencies are inferred from the claim text.