The ornamental design for grooves formed around a semiconductordevice on a board, as shown and described.
FIG. 1 shows a plan view of grooves formed around a semiconductor device on a circuit board showing our new design.
FIG. 2 shows an enlarged view of the claimed portion identified by the area boxed by the dot- dash line in FIG. 1; and,
FIG. 3 shows an enlarged sectional view along the line 3—3 in FIG. 2.
The special dot-dash broken line defines the boundary of the claimed design; the gray stippling indicates the surface of the groove bed; the broken lines show unclaimed subject matter forming no part of the claimed design.