19-12-2013 дата публикации
Номер: US20130334703A1
Принадлежит:
A wiring substrate includes a core substrate including a first wiring layer, an interlayer insulating layer formed by a resin layer containing fiber reinforcement material formed on the core substrate and a primer layer formed on the resin layer containing fiber reinforcement material, and the interlayer insulating layer having a via hole reaching the first wiring layer, and a second wiring layer formed on the primer layer, and connected to the first wiring layer through the via hole. 1. A wiring substrate , comprising:{'b': 10', '20, 'a core substrate () including a first wiring layer ();'}{'b': 40', '30', '32', '30', '40', '1', '20, 'an interlayer insulating layer () formed by a resin layer containing fiber reinforcement material () formed on the core substrate and a primer layer () formed on the resin layer containing fiber reinforcement material (), and the interlayer insulating layer () having a via hole (VH) reaching the first wiring layer (); and'}{'b': 22', '32', '20', '1, 'a second wiring layer () formed on the primer layer (), and connected to the first wiring layer () through the via hole (VH).'}210. A wiring substrate according to claim 1 , wherein a thickness of the core substrate () is 100 μm to 200 μm.33222. A wiring substrate according to claim 1 , wherein a surface of the primer layer () is formed as a roughened surface (R) claim 1 , and the second wiring layer () is formed on the roughened surface (R).4201010. A wiring substrate according to claim 1 , wherein the first wiring layer () is formed on both surface sides of the core substrate () claim 1 , and is connected mutually through a conductive layer (TE) formed in a through hole (TH) of the core substrate () claim 1 , and{'b': 00', '22', '10, 'the interlayer insulating layer ) and the second wiring layer () are formed on the both surface sides of the core substrate () respectively.'} This application is based upon and claims the benefit of priority of the prior Japanese Patent Application No. ...
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