National Taiwan University

National Central University

Jinn P Chu

Pei Hua Tsai

Jia Bin Li

Chih Chiang Fu

Jason Shiang Ching Jang

Wen-Zhi Chang

Chia-Chi Yu

Yi Zong Zhang

Chia-Hao Chang

Yee-Wen Yen

Shih-Hsin Chang

Chun-Tao Chen

Bohr-Ran Huang

Yusuke Tanatsugu

Chien-Kuang Chen

Chia-Lin Li

Yu Ze Lin

I Made Wahyu Diyatmika

Berhanu Tulu Kacha

Wen-Che Liao

Pak-Man Yiu

Sung-Tsun Wang

Guei-Huang Jiang

Jhen-De You

Bo-Zhang Lai

Ming-Jen Chen

You-Syuan Chen

The present invention relates to a hydrophilic metal thin film, which is formed by stacking a plurality of columnar structures. A plurality of tetrahedral structures is on the surface of the hydrophilic metal film, which is formed on the top of the columnar structures. The width of the tetrahedral structures is 15 nm to 120 nm. The hydrophilic metal thin film comprises: 35 to 95 at % of iron, 5 to 20 at % of chromium. The above-mentioned hydrophilic metal thin film is formed by magnetron sputtering method under the working pressure of argon gas ranging from 6 mTorr to 13 mTorr, and the sputtering time exceeds 20 minutes.

Hydrophilic metal thin film and sputtering method for depositing the same

A tattoo needle structure is provided. A tattoo needle has a plurality of needle tips, an ink holding space is formed by the arrangement of the needle tips, and a multi-component alloy film is deposited on each needle tip of the tattoo needle by sputtering technology, so that when the tattoo needle is dipped into the tattoo ink, the tattoo ink does not stick to the surface of the multi-component alloy film by the hydrophobic property of the multi-component alloy film, and the tattoo ink is contained in the ink holding space by the cohesive property of the tattoo ink. Thus, when the tattoo needle is dipped into the tattoo ink and the tattoo process is performed, the dyeing area of the skin with the tattoo ink is the cross-sectional area of the ink holding space, thereby achieving the technical effect of improving the contouring resolution of a tattoo.

Tattoo needle structure

A diaphragm structure is used for an audio signal output device. The diaphragm structure includes a film substrate, a polymer fiber structure and a thin film metallic glass. The film substrate includes a first surface and a second surface opposite to the first surface. The polymer fiber structure is combined with the first surface of the film substrate. The thin film metallic glass is formed on at least a part of the second surface of the film substrate.

Diaphragm structure and method of manufacturing the same

Disclosed is a medical needle used for performing a piercing or insertion operation on an object repetitively, the medical needle comprising a needle body and a metallic glass material layer formed on a surface of the needle body, the metallic glass material layer comprising an alloy consisting of aluminum, zirconium, copper and tantalum. With the presence of the metallic glass material layer covering the needle body, the medical needle may maintain its sharpness after having performed multiple piercing or insertion operations to enhance durability, minimize the increase of maximum piercing or insertion force resulted from piercing or insertion operations, and decrease injury to the object caused by piercing or insertion operations.

Medical needle and method of maintaining sharpness of needle

An adhesion element with variable surface adhesive force comprises a substrate, a heating layer, a buffer layer and a nanostructure array. The heating layer is formed on one side of the substrate, wherein a temperature of the heating layer is changeable by a power supply. The buffer layer is formed on the heating layer. The nanostructure array is formed on the buffer layer, and the nanostructure array is made of a metallic glass material and comprises a plurality of nanostructures which are spaced apart from one another and together form an ordered array. The plurality of gas chambers are formed by the nanostructure array.

Adhesion element with variable surface adhesive force and method of manufacturing the same

A Zr-based or Zr&#x2014;Cu based metallic glass thin film (MGTF) coated on aluminum alloy substrate and a method of fabricating the metallic glass and MGTF coated on aluminum alloy substrate are disclosed. The Zr-based metallic glass thin film-coated aluminum alloy substrate of the present invention comprises: an aluminum alloy substrate; and a Zr-based metallic glass thin film located on the substrate, in which the Zr-based metallic glass is represented by the formula of (ZrCuNiAl)Si, wherein 45=&#x3c;a=&#x3c;75, 25=&#x3c;b=&#x3c;35, 5=&#x3c;c=&#x3c;15, 5=&#x3c;d=&#x3c;15, 0.1=&#x3c;x=&#x3c;10. The Zr&#x2014;Cu-based metallic glass thin film coated substrate of the present invention comprises: an aluminum alloy substrate; a Zr&#x2014;Cu-based metallic glass thin film located on the aluminum alloy substrate, in which the Zr&#x2014;Cu-based metallic glass is represented by the following formula of (ZrCuAlAg)Si, wherein 35=&#x3c;e=&#x3c;55, 35=&#x3c;f=&#x3c;55, 5=&#x3c;g=&#x3c;15, 5=&#x3c;h=&#x3c;15, 0.1=&#x3c;y=&#x3c;10.

Application of metallic glass coating for improving fatigue resistance of aluminum alloys

An ultraviolet sensor comprises a glass substrate, a semiconductor structure, an electrode layer and a thin film metallic glass. The semiconductor structure comprises a semiconductor seed layer formed on the glass substrate and a plurality of semiconductor nanostructures formed on the semiconductor seed layer. The electrode layer is formed between the semiconductor seed layer and the plurality of semiconductor nanostructures. The thin film metallic glass is in contact with the semiconductor structure, wherein an interface between the thin film metallic glass and the semiconductor structure forms a Schottky barrier junction to inhibit dark current and increase signal-to-noise ratio.

Ultraviolet sensor and method of manufacturing the same

A thin film metallic glass coated needle includes a needle body, a needle head and a thin film metallic glass in amorphous structure and formed on a surface of the needle head and a surface of the needle body to reduce a surface energy and coefficient of friction. The thin film metallic glass is a titanium based comprising 35-45 at % titanium, 5-15 at % zirconium, 32-42 at % copper, 1-11 at % niobium and 2-12 at % cobalt.

Thin film metallic glass coated needle

A Zr-based or Zr&#x2014;Cu based metallic glass thin film (MGTF) coated on aluminum alloy substrate and a method of fabricating the metallic glass and MGTF coated on aluminum alloy substrate are disclosed. The Zr-based metallic glass thin film-coated aluminum alloy substrate of the present invention comprises: an aluminum alloy substrate; and a Zr-based metallic glass thin film located on the substrate, in which the Zr-based metallic glass is represented by the formula of (ZrCuNiAl)Si, wherein 45=&#x3c;a=&#x3c;75, 25=&#x3c;b=&#x3c;35, 5=&#x3c;c=&#x3c;15, 5=&#x3c;d=&#x3c;15, 0.1=&#x3c;x=&#x3c;10. The Zr&#x2014;Cu-based metallic glass thin film coated substrate of the present invention comprises: an aluminum alloy substrate; a Zr&#x2014;Cu-based metallic glass thin film located on the aluminum alloy substrate, in which the Zr&#x2014;Cu-based metallic glass is represented by the formula of (ZrCuAlAg)Si, wherein 35=&#x3c;e=&#x3c;55, 35=&#x3c;f=&#x3c;55, 5=&#x3c;g=&#x3c;15, 5=&#x3c;h=&#x3c;15, 0.1=&#x3c;y=&#x3c;10.

A cutting tool having a metallic glass thin film (MGTF) coated thereon, a metallic glass cutting tool, and methods of fabricating the same are disclosed. The cutting tool having metallic glass thin film coated thereon comprises: a cutting element having a sharpened portion, and the cutting element is made of metal; and a metallic glass thin film coated on the cutting element, and the metallic glass is represented by the following formula 1 or formula 2,(ZrCuNiAl)Si,&#x2003;&#x2003;[formula 1] The metallic glass cutting tool of the present invention comprises: a cutting element having a sharpened portion, and the cutting element is made of a metallic glass represented by the above formula 1 or formula 2.

Application of metallic glass and metallic glass thin film coating on the sharpness enhancement of cutting tools

The present invention relates to a tin whisker mitigation material using thin film metallic glass underlayer, which is a thin film metallic glass (TFMG) formed between a metal substrate and a tin layer. Particularly, the TFMG can be a ZrTiNiunderlayer or a ZrCuAlNi underlayer, capable of blocking off the interaction occurring in the interface of a copper layer (the metal substrate) and the tin layer, so as to carry out the inhibition of tin whisker growth. Moreover, a variety of experiment data are proposed for proving that the TFMG of the ZrTiNior the ZrCuAlNi can indeed be used to replace the conventionally used thick tin layer for being the underlayer between the copper layer (the metal substrate) and the tin layer, and then effectively inhibit the interaction occurring in the Cu/Sn interface and the growth of tin whisker by low manufacturing cost way.

Tin whisker mitigation material using thin film metallic glass underlayer

The present invention relates to a resistive random access memory using amorphous metallic glass oxide as a storage medium, comprising a substrate, an insulation layer, a first electrode layer, a resistive memory layer, and a second electrode layer. In the present invention, an amorphous metallic glass oxide layer is mainly used as the resistive memory layer of the resistive random access memory. Therefore, the resistive random access memory with storage medium of amorphous metallic glass oxide thin film having advantages of low operation voltage, low power consumption, and high set/reset resistance ratio are provided without using any thermal annealing processes or forming processes.

Resistive random access memory using amorphous metallic glass oxide as a storage medium

The present invention relates to a resistive random access memory using the rare earth scandate thin film as the storage medium, comprising a substrate, an insulation layer, a first electrode layer, a resistive memory layer, and a second electrode layer. In the present invention, it uses an amorphous rare earth scandate layer as the resistive memory layer of the resistive random access memory. Therefore, the resistive random access memory using the rare earth scandate thin film as the storage medium having advantages of low operation voltage and low power consumption can easily be manufactured without using any forming process or thermal annealing process. Moreover, through the characteristics of unipolar resistance switching behavior revealed by the amorphous rare earth scandate layer, the resistive random access memory using rare earth scandate thin film as the storage medium is able to perform a high resistance state and a low resistance state.

Growing community of inventors

Taipei, Taiwan

Jinn P Chu