Abstract:
A stretchable flexible substrate according to one aspect of the present disclosure includes: an electronic component; a first insulating layer located around the electronic component and having first and second main surfaces facing each other; a first metal layer that is in contact with the first main surface; a second metal layer that is in contact with the second main surface and electrically connected to the electronic component; and a second insulating layer that seals the electronic component, first insulating layer, and second metal layer, in plan view, a curved wiring portion extending from a central portion made up of at least the electronic component, portions of the first insulating layer and first and second metal layers, the curved wiring portion being made up of at least other portions of the first insulating layer, first and second metal layers, and the curved wiring portion being curved at least partially.
Abstract:
A flexible substrate is provided with: a stretchable sheet; a member located on the sheet; and a stretchable strip connected to the member, and located on the sheet. When the amount of extension of the sheet is equal to or less than a predetermined value, the sheet has a first elastic modulus, and when the amount of extension of the sheet exceeds the predetermined value, the sheet has a second elastic modulus that is greater than the first elastic modulus and greater than the elastic modulus of the strip.
Abstract:
Current collapse of a normally-on type dual-gate bidirectional switch is suppressed. Dual-gate bidirectional switch includes first gate, first source, second gate, and second source. Control system includes first gate drive circuit, second gate drive circuit, and controller. Controller controls first gate drive circuit and second gate drive circuit. At the time of turning on dual-gate bidirectional switch and when the potential of first source is lower than the potential of second source, controller applies a first positive voltage for a first period between first gate and first source from first gate drive circuit, and applies a voltage smaller than the first positive voltage after the first period has elapsed.
Abstract:
An electronic part package comprises a sealing resin layer, an electronic part and a metal plating pattern layer. The sealing resin layer is provided with a principal surface including a first region that has a bellows-like shape having alternate ridges and valleys and a second region that is flat. The electronic part includes an electrode having a principal surface and is covered by the sealing resin layer except the principal surface, which is surrounded by the second region. The metal plating pattern layer is integrally provided on the first and second regions and on the principal surface of the electrode. A portion of the metal plating pattern layer, the portion located on the first region, has a bellows-like shape having alternate ridges and valleys along an outline of the first region.
Abstract:
An electronic component package according to one aspect of the present disclosure includes a metal pattern layer having a first principal surface and a second principal surface, an electronic component disposed on the first principal surface and electrically connected to the metal pattern layer, at least one metal member disposed on the first principal surface and electrically connected to the metal pattern layer, a sealing resin layer disposed on the first principal surface, the electronic component and the at least one metal member, and an insulating layer disposed on the second principal surface. The at least one metal member is thicker than the electronic component. In plan view, the at least one metal member is disposed on an area of the first principal surface, the area including an end of the first principal surface. The at least a part of the metal pattern layer is exposed from the insulating layer.