Tungsten needle is an important part of a wafer probe card, so it is also known as tungsten probe in such a probe card. According to the experts, a probe card, as a main tool for wafer testing, is usually composed of a test circuit board and a conical tungsten needle bent at 95-105 degrees on the circuit board. During the test, the tip of the tungsten probe is directly contacted with the pad of the wafer to be tested,…

Tungsten wafer probe is specifically designed for wafer testing during the production of integrated circuit. Wherein, wafer testing is to test each die on the chip. In the general, a probe made of tungsten material is mounted on the detection head, and contacts the contacts on the dies to test their electrical characteristics. Unqualified dies will be marked. Then, when the chip is cut into individual dies, these unqualified dies marked will be eliminated, and the next process will not…

Yellow tungsten oxide as a photocatalytic material can be used to produce hydrogen by photolysis of water. According to the experts, the photocatalytic material used for hydrogen production from photolysis of water should have good light corrosion resistance, electrolyte corrosion resistance, as well as a suitable forbidden band width. More details, please visit: http://tungsten-oxide.com/index.html Wherein, the forbidden band width is one of the decisive factors that affect the performance of the photocatalytic material. When the forbidden band width is too…

Yellow tungsten oxide applied for photocatalytic degradation is known as tungsten trioxide or WO3, which has the characteristics of a small forbidden band width. And the absorption edge of WO3 extends into the visible light region. So, tungsten trioxide exhibits good photocatalytic degradation effect under visible light irradiation. More details, please visit: http://tungsten-oxide.com/index.html Yellow tungsten oxide is a semiconductor oxide photocatalytic material, so it can be applied in semiconductor oxide photocatalytic technology – a new type of technology on improving…

It has been reported that yellow tungsten oxide film (It is more often known as tungsten trioxide film or WO3 film.) may be used as the basic material for package security label. This is mainly a package security label made by combining the characteristics of WO3 film under ultraviolet (sunlight) radiation with other technologies. More details, please visit: http://tungsten-oxide.com/index.html When a consumer places such a label under sunlight, the label will change, that is, it will turn blue to verify…

Yellow tungsten oxide, which is also known as tungsten trioxide or WO3, has huge application prospects in smart windows, photocatalysts, gas sensors, etc., so its preparation methods have always been one of the key research directions of researchers. There are many methods for preparing tungsten trioxide, such as hydrothermal method and template method. Here is a preparation method of tungsten trioxide. More details, please visit: http://tungsten-oxide.com/index.html A Method for Preparing Yellow Tungsten Oxide Using sodium tungstate as the source of…

In recent years, studies have shown that polymer tungsten, also called tungsten rubber or tungsten resin, is the best material for the production of radiation protection clothing, radiation protection skirts and other medical radiation protection products. Well, do you know what are the advantages of polymer tungsten? Or what make tungsten rubber the preferred material for medical protection products? More details, please visit: http://poly-tungsten.com/index.html Advantages of Polymer Tungsten 1. Environmentally friendly, no pollution to the environment or harm to the…

A cutter applied for a tunnel boring machine (TBM) is mainly tungsten carbide cutter as tungsten carbide has unique properties, such as good wear resistance, high hardness, high compressive strength, high elastic modulus, strong impact resistance, high corrosion resistance, and dimensional stability. Tungsten carbide cutters applied for a TBM have different types including tungsten carbide hobs, tungsten carbide scrapers, tungsten carbide tooth cutters, and so on. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html According to the researchers, not only the cutter layout…

Tungsten carbide tile cutter, which is also called cemented carbide tile cutter, is mainly used to score or cut tiles of different hardness and thickness. The scoring and cutting effects are good, the speed is fast, and the service life is longer. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html Specifically, cutter wheel of tungsten carbide tile cutter is made using high hardness tungsten carbide powder as the raw material, so that the tile cutter has many advantages. For example, the cutter is…

Tungsten carbide shield cutter is a type of tungsten carbide cutter applied for tunnel boring machines. Such a cutter is made of carbide materials (WC, TiC) of high hardness and high melting point, together with cobalt (Co), nickel (Ni) or molybdenum (Mo) as binding phase. Generally, the heads of these cutters is made of coarse-grained WC-Co cemented carbide. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html Well, do you know how to choose tungsten carbide shield cutter? For the excavation of different strata,…