Abstract: The invention is a unique modification of biscuit joinery. The instant invention creates “two way” slots in joining wood [preferred embodiment] pieces, allowing a “shelf joint” in the center of a face of wood, to be fastened with a common nickel (or similar coin or disc). Rather than using a limited biscuit cutter/biscuit joiner, the instant method discloses use of a router with a specialized router bit (aka slot cutter bit); the slot cutter on the router [when the bit is machined in the following way infra, and then configured and used in the following way infra] allows a common 5¢ piece to become the spline joining the two wood pieces or panels, thereby allowing rapid assembly & disassembly of wood furniture. The precise ratios and proportions of grooves, slots, coin wells, overhangs, pushtool ‘raceways,’ and offsets therefor, make this invention possible.

Abstract: A combination, composition and associated method for chemical mechanical planarization of a tungsten-containing substrate are described herein which afford tunability of tungsten/dielectric selectivity and low selectivity for tungsten removal in relation to dielectric material. Removal rates for both tungsten and dielectric are high and stability of the slurry (e.g., with respect to pH drift over time) is high.