Patent ID: 8124881
Filing Date: 2012-02-28
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. A printed board comprising: a base material; a conductive pattern layer which is formed on the base material; a resist layer which covers the conductive pattern layer; a packaging surface on which an electronic component is packaged; an adhesion prohibited portion which is provided at a region of the printed board different from a region where the electronic component is provided, and to which adhesion of the adhesive material is prohibited; and a blocking step portion which is formed at a region between the region where the electronic component is provided and the region where the adhesion prohibited portion is provided, which blocks any adhesive material which has spilled out from between the bottom surface of the electronic component and the packaging surface from reaching the adhesion prohibited portion, wherein the blocking step portion is provided with a groove portion which is formed by peeling away the packaging surface, and the blocking step portion is formed in an L-shape.