Electronic apparatus and printed wiring board

Abstract

According to an aspect of the present invention, there is provided a printed wiring board including: a substrate including an edge and a fixing hole located adjacent to the edge, the fixing hole configured to receive a bolt; and a land formed in a vicinity of the fixing hole and extending in at least a first direction and a second direction, the first direction being a direction from the fixing hole toward a center of the substrate, the second direction being direction along the edge.

1 . An electronic apparatus comprising:
 a casing comprising a conductive ground layer on an inner surface of the casing;   a printed wiring board in the casing; and   a bolt configured to attach the printed wiring board to the casing and to ground the printed wiring board to the conductive ground layer,   wherein the printed wiring board comprises:
 a substrate comprising an edge and a fixing hole next to the edge, the fixing hole configured to receive the bolt; and 
 a land in a vicinity of the fixing hole and extending in at least a first direction and a second direction, the first direction being a direction from the fixing hole toward a center of the substrate, the second direction being direction along the edge. 
   
   
   
       2 . The electronic apparatus of  claim 1 , wherein:
 the substrate comprises a first region extending along the edge and comprising a band-shape, and   the land is outside the first region.   
   
   
       3 . The electronic apparatus of  claim 2 , wherein the land comprises a sector shape extending from the fixing hole toward the center of the substrate. 
   
   
       4 . The electronic apparatus of  claim 3 , further comprising a conductive plating on an inner surface of the fixing hole and continuous with the land. 
   
   
       5 . The electronic apparatus of  claim 2 , wherein:
 the substrate comprises a second region extending at least between the fixing hole and the center of the substrate, and   the land is outside the second region.   
   
   
       6 . The printed wiring board of  claim 5 , further comprising a conductive plating on an inner surface of the fixing hole and continuous with the land. 
   
   
       7 . A printed wiring board comprising:
 a substrate comprising an edge and a fixing hole next to the edge, the fixing hole configured to receive a bolt; and   a land in a vicinity of the fixing hole and extending in at least a first direction and a second direction, the first direction being a direction from the fixing hole toward a center of the substrate, the second direction being direction along the edge.   
   
   
       8 . The printed wiring board of  claim 7 , wherein:
 the substrate comprises a first region extending along the edge and comprising a band-shape, and   the land is outside the first region.   
   
   
       9 . The printed wiring board of  claim 8 , wherein the land comprises a sector shape extending from the fixing hole toward the center of the substrate. 
   
   
       10 . The printed wiring board of  claim 9 , further comprising a conductive plating on an inner surface of the fixing hole and continuous with the land. 
   
   
       11 . The printed wiring board of  claim 8 , wherein:
 the substrate comprises a second region extending at least between the fixing hole and the center of the substrate, and   the land is outside the second region.   
   
   
       12 . The printed wiring board of  claim 11 , further comprising a conductive plating on an inner surface of the fixing hole and continuous with the land.