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Ion fan is a kind of static electricity eliminator, which is mainly composed of high-voltage power generator and discharge needle – tungsten needle. Generally, a high voltage above 4 kV is applied to the discharge needle, therefore, the tip of the discharge needle is loaded with a very large energy load. And it is the main reason for the wear of tungsten needles. In addition, pollution will increase the corrosion and wear of tungsten needle electrodes. More details, please visit:…

Tungsten is a superior material for fabricating needle. And tungsten needle is the most important semiconductor test probe. Tungsten probes are mainly used in the final testing stage of processes of semiconductors. And the tungsten probe used to connect the chip to the test board is an important factor that affects contact and electrical characteristics of dies. Generally speaking, the tungsten needle as a probe is to identify good and bad dies, thereby reducing unnecessary packaging cost. More details, please…

Tungsten needle with two tips may be a sharpened pure tungsten needle, a sharpened tungsten alloy needle or a sharpened rare earth doped tungsten needle. And one of the most important applications of tungsten needle is – electrode. The pure tungsten electrode has a high melting point, strong electron emission capability, high elastic modulus, and ablation resistance, so that it can be used in tungsten arc welding, and it plays an important role in arc starting, arc stability and welding…

Polymer tungsten, also known as an ideal lead-free radiation shielding material, is a newly developed radiation shielding material to replace lead and lead alloy for fabricating medical protective products. And what the researchers have in common is a focus on polymer tungsten property with the popularization of tungsten polymer applications. So, what are the properties of polymer tungsten? More details, please visit: http://poly-tungsten.com/index.html Polymer Tungsten Properties Perfect radiation shielding performance: With higher density, it has better shielding performance than lead…

Polymer tungsten is a soft radiation shielding material made of tungsten powder and high molecular polymer (one or more of plastic, rubber or thermoplastic elastomer) through extrusion molding, injection molding or compression molding process. And polymer tungsten radiation protection material can play a good role in blocking X-rays, gamma rays and other radiation rays, so it has been used to produce protective clothing and other medical protective products. More details, please visit: http://poly-tungsten.com/index.html As a soft radiation shielding material, the…

Tungsten rubber radiation shielding part may be a medical radiation protection product made using tungsten powder and rubber as raw materials through a special process. And the protective products may be tungsten rubber surgical gloves, tungsten rubber protective clothing, tungsten rubber protective caps and other medical protective products. Wherein, rubber includes one or more of natural rubber, fluororubber, silicone rubber, nitrile rubber, ethylene propylene rubber, neoprene rubber, isoprene rubber, styrene-butadiene rubber, and butadiene rubber. More details, please visit: http://poly-tungsten.com/index.html Tungsten…

How to recycle tungsten wafer probe? You know, in order to reduce the cost of wafer probing, recycling of tungsten probe is very important. According to the experts, during testing, the tapered tungsten needle began to wear after multiple tests, resulting in a larger diameter of needle tip. At this time, if you do not replace the probing card (one of the tools for wafer testing) containing tungsten needle, it will affect the accuracy of the test results; and if…

Tungsten needle can be used as a wafer probe. Wherein, tungsten probe is used as a tool for IC (integrated circuit) wafer probing on the circuit board of the probe card, or on the prober, mainly to test the electrical performance of each die on the wafer to see whether they are manufactured in accordance with the designed specifications. More details, please visit: http://tungsten.com.cn/tungsten-needles.html Wafer probing is an important process during production of integrated circuit. It is a way to…

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…