Abstract: This invention relates to a bone implant that includes a bioinert substrate covered with a ceramic layer containing a plurality of indentations. The total surface area of the indentations is 30-70% of the total surface area of the ceramic layer. This invention also relates to a method of preparing such a bone implant. The method includes: (1) affixing a ceramic layer on the surface of a bioinert substrate; (2) forming a plurality of indentations in the ceramic layer, wherein the total surface area of the indentations is 30-70% of the total surface area of the ceramic layer; and (3) immobilizing a biopolymer onto the ceramic layer via covalent bonding.

Abstract: A thin film resistor structure is disclosed. The resistor structure comprises a resistor film comprising a copper oxide layer and a plurality of metal islands thereon. The copper oxide layer has a top surface comprising a plurality of adjacent nodule-shaped recess regions, in which vacancies are formed between the nodule-shaped recess regions and are arranged in reticulate distribution. The plurality of metal islands is respectively distributed in the vacancies between the nodule-shaped recess regions. A method for fabricating the thin film resistor structure is also disclosed.

Abstract: A thin film resistor structure is disclosed. The resistor structure comprises a resistor film comprising a copper oxide layer and a plurality of metal islands thereon. The copper oxide layer has a top surface comprising a plurality of adjacent nodule-shaped recess regions, in which vacancies are formed between the nodule-shaped recess regions and are arranged in reticulate distribution. The plurality of metal islands is respectively distributed in the vacancies between the nodule-shaped recess regions. A method for fabricating the thin film resistor structure is also disclosed.

Abstract: This invention relates to a bone implant that includes a bioinert substrate covered with a ceramic layer containing a plurality of indentations. The total surface area of the indentations is 30-70% of the total surface area of the ceramic layer. This invention also relates to a method of preparing such a bone implant. The method includes: (1) affixing a ceramic layer on the surface of a bioinert substrate; (2) forming a plurality of indentations in the ceramic layer, wherein the total surface area of the indentations is 30-70% of the total surface area of the ceramic layer; and (3) immobilizing a biopolymer onto the ceramic layer via covalent bonding.

Abstract: An electrochemical method is provided, whereby electrodes are coated with conductive diamond film material. The method detects the concentration of metal ions and organic compounds in solutions by using square wave voltammetry of pulsed voltammetry. Since the electrodes coated with conductive diamond film material enable the user to obtain broader range of voltage measurement, the number of chemicals detected is greatly increased and the accuracy thereof improved.

Abstract: A surface treatment for a wrought copper foil relatives to a surface treatment procedure for a wrought cooper foil for use on a flexible PCB. The surface treatment comprises the steps of bi-polar electrochemical degreasing, acid etching and nodularization, electroplating a barrier layer and an anti-tarnish layer and coating a silane coupling agent layer to a copper foil. One side of the copper foil is nodularization, and a Zn—Ni barrier layer and a Cr—Zn anti-tarnish layer are electroplated on the copper foil. Finally, the organic silane coupling agent is coated to the roughened surface of the copper foil to modify the surface characters to impart the peel strength. Whereby, the cooper foil has very low profile, high peel strength, finer-pattern property, low HCl undercut and high thermal oxidation property.

Abstract: An electrochemical catalyst electrode to increase bonding durability between covering layers and a metal substrate is made by processing a metal substrate at a high temperature and etching the metal substrate to form a large number of etching pores on granular surfaces; heating the metal substrate to transform the surface thereof to an oxygen interstitial layer; laminating an inner covering layer which is compatible to the oxygen interstitial layer on the metal substrate and deeply planted into the pores to form included angles to increase adhering force between the inner covering layer and the substrate and to reduce peeling on the interface; and forming an outer covering layer on the layers with stabilizing additive added in the outer covering layer to enhance the stability of the outer surface of the covering layers thereby to reduce dissolution of noble metal; and greatly increase stability and durability of the electrode.