Enclosure comprising compression bonded parts

摘要

At least one of two bodies has a surface that comprises a recessed portion that faces the other of the bodies. The textured bonding region surrounds an interior region that includes the recessed portions such that the first and second bodies are not in contact in the interior region, with one of the bodies comprising at least one raised feature in the bonding region. The raised feature comprises a ridge, the ridge enclosing the interior region and providing a barrier against entrance of gas from an ambient atmosphere into the interior region. At least two ridges in the bonding region are continuous and enclose the interior regions, comprising further ridges that extend between the at least two ridges.