Nec Corporation

Kenichiro Fujii

Katsumi Abe

Atsumasa Sawada

Shinji Watanabe

Junya Sato

Nobuhiro Mikami

Toshinobu Ogatsu

An object of the present invention is to allow stress that may be applied to a semiconductor package to be suppressed, when the semiconductor package is mounted on a curved board. In a mount board, a semiconductor packageis mounted on a curved boardincluding a curved surface on at least a portion thereof. The curved boardincludes a pedestal portiondisposed on a region of the curved surface portion where the semiconductor packageis mounted and having an upper surface thereof formed flat, and a plurality of pad portionsdisposed on the flat surface of the pedestal portion. The pedestal portionis formed of an insulating material. The semiconductor packageis mounted on the pad portions

Mount board and electronic device

An object of the present invention is to allow stress that may be applied to a semiconductor package to be suppressed, when the semiconductor package is mounted on a curved board. In a mount boarda semiconductor packageis mounted on a curved boardincluding a curved surface on at least a portion thereof. The curved boardincludes a pedestal portiondisposed on a region of the curved surface portion where the semiconductor packageis mounted and having an upper surface thereof formed flat, and a plurality of pad portionsdisposed on the flat surface of the pedestal portionThe pedestal portionis formed of an insulating material. The semiconductor packageis mounted on the pad portions

A holder of a magnetic storage apparatus is suggested that can efficiently absorb the shock when a vibration or shock is applied to the magnetic storage apparatus. A plurality of holding members (first shock absorbing material foam rubberand second shock absorbing material foam rubber) that hold at least two corner parts of the magnetic storage apparatusis included. The holding members are configured in a way that a total sum of holding power to hold one of opposite angles of the magnetic storage apparatusand a total sum of holding power to hold the other of opposite angles are different. The first shock absorbing material foam rubberis disposed on one of opposite angles, and the second shock absorbing material foam rubberis disposed on the other of the opposite angles. The first shock absorbing material foam rubberhas greater hardness than the hardness of the second shock absorbing material foam rubber

Holder of magnetic storage apparatus, magnetic storage apparatus and electric device including the same

Stress concentration at the connecting portion of the electronic component and the curved board and the area around the connecting portion is suppressed. In a flexible wiring board, insulation layers () and wiring layers () are piled up alternately and wiring layers () are via-connected each other. The board comprises reinforced area () reinforced against external stress, bending area () bending easier than the reinforced area () by external stress, and a stress relaxation area () provided in area between the reinforced area () and the bending area (), bending easier than the reinforced area () but not easier than the bending area () by the external stress, and relaxing the stress carried from the bending area () to the reinforced area ().

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Tokyo, Japan

Kenichiro Fujii