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US 7,608,787 B2Granted
Semiconductor memory device and USB memory device using the same
AssigneeKabushiki Kaisha Toshiba
InventorsYasuo Takemoto, Naohisa Okumura, Taku Nishiyama, Takashi Okada
Life of this patent
Estimating the term…
Abstract
A USB terminal having a conductor layer to be an input/output terminal of a USB connector is formed on a first principle surface of a circuit board. A memory element is mounted on a second principle surface at an opposite side of a terminal forming surface of the circuit board, and the memory element is sealed with a sealing resin. A semiconductor memory device as a USB memory main body is constituted by them. A USB memory is constituted by housing the USB memory main body inside of a USB connector case.
Claims21
A USB memory device, comprising:
- a semiconductor memory device, including:
- a circuit board having a first principle surface and a second principle surface at an opposite side of the first principle surface;
- a USB terminal formed on the first principle surface of the circuit board, and having a conductor layer to be an input/output terminal of a USB connector;
- a memory element mounted on the second principle surface of the circuit board;
- a sealing resin provided on the second principle surface of the circuit board so as to seal the memory element;
- and
- an electronic component mounted on at least one of a region except a forming region of the USB terminal on the first principle surface of the circuit board and a region except a mounting region of the memory element on the second principle surface of the circuit board;
- and
- a USB connector case to which at least a part of the semiconductor memory device is housed, having an upper wall facing with the first principle surface of the circuit board, a lower wall facing with the second principle surface of the circuit board, and side walls,
- wherein the USB connector case has a projection projecting and folding a cut portion formed by cutting into a part of the upper wall toward the first principle surface of the circuit board, and being in contact with at least one of the first principle surface of the circuit board and the electronic component.
7 more elements
A USB memory device, comprising:
- a semiconductor memory device, including:
- a circuit board having a first principle surface and a second principle surface at an opposite side of the first principle surface;
- a USB terminal formed on the first principle surface of the circuit board, and having a conductor layer to be an input/output terminal of a USB connector;
- a memory element mounted on the second principle surface of the circuit board;
- a sealing resin provided on the second principle surface of the circuit board so as to seal the memory element;
- and
- an electronic component mounted on at least one of a region except the forming region of the USB terminal on the first principle surface of the circuit board and a region except the mounting region of the memory element on the second principle surface of the circuit board;
- and
- a USB connector case to which at least a part of the semiconductor memory device is housed, having an upper wall facing with the first principle surface of the circuit board, a lower wall facing with the second principle surface of the circuit board, and side walls,
- wherein the USB connector case has a projection projecting and folding a cut portion formed by cutting into a part of the side walls toward the first principle surface of the circuit board, and being in contact with at least one of the first principle surface of the circuit board and the electronic component.
7 more elements
A USB memory device, comprising:
- a semiconductor memory device, including:
- a circuit board having a first principle surface and a second principle surface at an opposite side of the first principle surface;
- a USB terminal formed on the first principle surface of the circuit board, and having a conductor layer to be an input/output terminal of a USB connector;
- a memory element mounted on the second principle surface of the circuit board;
- and
- a sealing resin provided on the second principle surface of the circuit board so as to seal the memory element;
- and
- a USB connector case to which at least a part of the semiconductor memory device is housed, having an upper wall facing with the first principle surface of the circuit board, a lower wall facing with the second principle surface of the circuit board, and side walls,
- wherein the USB connector case has a projection projecting and folding a cut portion formed by cutting into a part of the side walls toward the first principle surface of the circuit board, and being in contact with the first principle surface of the circuit board.
6 more elements
Dependencies are inferred from the claim text.