Abstract: The invention relates to a wind-driven air-compressed energy-saving collecting and filtering device for field fresh water which includes a water collecting tank, a cooling pipe, a compression pipe and a wind wheel. The water collecting tank is provided with a pressure relief pipe, an outlet pipe and a plug. The outer side of the cooling pipe is provided with an ultraviolet sterilizer. The inner cavity of the cooling pipe is provided with a fin condenser. The upper end of the compression pipe is connected to an end cover, a second annular housing, a power generating coil disposed in the inner cavity of the second annular housing. The end cover is provided with a commutator. The inner cavity of the compression pipe is provided with a first rotating shaft, magnetic compression blades, and a limiting mesh plate. The wind wheel includes a bracket and Y-shaped blades.

Abstract: A method for plating a lead frame comprises the steps of plating the lead frame with at least one plating layer including silver and forming an asper-silver layer comprising nano-silver formations over the at least one plating layer including silver. The asper-silver layer is particularly beneficial for enhancing the adhesion of plastic molding compound to the lead frame.

Abstract: Method of manufacturing a lead frame wherein a bare lead frame material is immersed in a salt solution. Gas bubbles are provided in the salt solution next to the bare lead frame material such that the bubbles contact a surface of the lead frame material and pop in proximity to the bare lead frame material causing chemical reactions on the surface of the lead frame, thereby forming a plurality of dimples of irregular sizes on the surface of the lead frame.

Abstract: A process for producing a pre-plated leadframe that has enhanced adhesion by molding compound is provided, wherein a base leadframe material is first plated with multiple layers of metallic material. Thereafter, the plated base leadframe material is covered with a mask, so as to expose selected surfaces thereof at unmasked areas where enhanced adhesion of molding compound is desired. The said unmasked areas are plated with a layer of copper before removing the mask. Optionally, the layer of copper may further be oxidized to form a layer of specially controlled copper oxide.

Abstract: A process for producing a pre-plated leadframe that has enhanced adhesion by molding compound is provided, wherein a base leadframe material is first plated with multiple layers of metallic material. Thereafter, the plated base leadframe material is covered with a mask, so as to expose selected surfaces thereof at unmasked areas where enhanced adhesion of molding compound is desired. The said unmasked areas are plated with a layer of copper before removing the mask. Optionally, the layer of copper may further be oxidized to form a layer of specially controlled copper oxide.