A thermal ink jet ink composition includes one or more volatile organic solvents, one or more humectants, one or more binder resins, and one or more dyes. The predistortion look-up table arrangement comprises at least two look-up tables, which are updated by said estimation means and said at least two look-up tables have different number of table entries. The impact diverting mechanism may be attached to, or configured to attach to, an object in need of protection, such as a helmet. A portion of the wafer is removed until a desired device thickness is achieved. The trench is etched using an etchant gas that also serves as a dopant source for the formation of the doped column.