A paste-like composition for abrasively cleaning and polishing hard surfaces which comprises silica, stearic acid, mineral seal oil, and petroleum distillate. The composition can be applied with a cleaning cloth, buffing pad or the like which has been impregnated with it. When used to polish metals, wood, plastic, fiberglass, painted surfaces or the like, the composition gives a characteristically brilliant shine.
A passivation layer (16) is formed over a substrate (10) having an interconnect pad (12, 13). An opening in the passivation layer (16) exposes a portion of the interconnect pad (12, 13). A polyimide structure (18, 20) is formed adjacent to the opening in the passivation layer 16. Under bump metallurgy (22, 24) is formed over at least a portion of the polyimide structure (18, 20). A solder bump (28, 26) is formed over the Under bump metallurgy (22, 24).
A novel method for cleaning the exterior surfaces of an automobile or other automotive vehicle. The surface that is to be cleaned is sprayed with a water solution of a mild detergent and then rubbed with a putty-like wad of a rubbing composition until the surface contaminants are loosened and adhere to or are suspended in the wad of rubbing composition. The wad of rubbing composition can be reworked from time to time to expose new, clean portions of the wad. The rubbing composition is substantially water free and contains a fatty acid or fatty ester, a fine abrasive, a polybutylene, and an oil absorbent filler. Various types and quantities of materials for the rubbing composition that will produce satisfactory, improved and optimum results are disclosed.
