The present invention provides a submount which includes a semiconductor element and which can be easily connected to an IC on a main substrate. User posts are appended to a category in a voice application and subdivision of the category is prompted upon satisfaction of a first condition. The mesh pattern includes a plurality of openings in the sheet having a maximum dimension of not more than about 200 micrometers, thereby acting as a filter trapping embolic material while facilitating endothelial growth therethrough. The snap fit connections eliminate the need for any fasteners, and together with the Z-axis assembly, the assembly process is simplified and accelerated and the possibility of assembly error is reduced or eliminated.