Keeping more space for circuit elements on a chip when dummy terminals for reinforcement are located on it for the purpose of load balancing for pressure welding. In real-time data compression, a series of multi-dimensional data subsets acquired in a given period of time are treated as a regional data cube for the purpose of dividing a continuous series of data subsets into a plurality of data cubes. In one embodiment, the light fixture includes a plurality of hollow gradient diffusion globes; each diffusion globe is affixed to a planar reflector that forms an outer illumination surface of the light fixture. Microneedles having heterogeneous coatings, pockets, or both are also provided.