摘要:
According to one embodiment, a plurality of bumps are formed by repeatedly applying conductive paste to the conductive pattern portion, a plurality of bump-guiding openings are provided in the cover layer to align with the plurality of bumps, a plurality of crushed portions are formed by crushing heads of the plurality of bumps protruding from the cover layer through the bump-guiding openings, and a ground layer is formed on the cover layer. The ground layer is electrically connected to the plurality of crushed portions.
摘要:
According to one embodiment, there is provided a printed-wiring board in which a composite board is formed to have rigid portions and a bending portion, wherein the bending portion includes linear protrusions each formed with solder resist having a bending resistance property.
摘要:
According to one embodiment, in a method of inspecting a printed wiring board, the printed wiring board which is provided with an outer-layer surface and an inner-layer surface is prepared for inspection. The printed wiring board includes a land provided on the outer-layer surface, a via ranging from the land to the inner-layer surface, and an inner layer pattern provided on the inner-layer surface, wherein the inner layer pattern is electrically connected to the via when a via shift in the printed wiring board is within a tolerance range. A conduction state between the land and the inner layer pattern is detected.