Sharpen Tungsten Needle
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- Category: Tungsten Information
- Published on Tuesday, 12 May 2020 19:12
- Written by Yahong
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Sharpen tungsten needle is made using pure tungsten (W> 99.95%) or tungsten alloy (W>98%) as raw materials, and has the characteristics of wear resistance, corrosion resistance and high temperature resistance. It can be a tungsten needle sharpened at one end or a tungsten needle sharpened at both ends. In a word, it is a sharpened tungsten needle.
Contact Resistance of Tungsten Probe
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- Category: Tungsten Information
- Published on Tuesday, 12 May 2020 19:10
- Written by Yahong
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Contact resistance of tungsten probe will affect the reliability of wafer testing in semiconductor manufacturing processes. Therefore, in order to improve the accuracy of test results, some experts have proposed a method for testing the contact resistance of tungsten probe.
How to Recycle Tungsten Wafer Probe?
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- Category: Tungsten Information
- Published on Tuesday, 12 May 2020 19:05
- Written by Yahong
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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 it is replaced, it will increase the cost. In this regard, some researchers have proposed a method for recycling tungsten wafer probe on a probe card.
Tungsten Probe Applied for Semiconductor Testing
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- Category: Tungsten Information
- Published on Tuesday, 12 May 2020 19:08
- Written by Yahong
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Tungsten probe for semiconductor testing may be an alloy probe made of rhenium tungsten alloy, or a tungsten probe made of pure tungsten. Wherein, the contact resistance of rhenium tungsten alloy is slightly higher than tungsten. But their fatigue resistance is similar. In addition, the lattice structure of rhenium tungsten alloy is tighter than tungsten, so the top surface of the rhenium tungsten probe is smoother.
Tungsten Needle Applied for Wafer Probe
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- Category: Tungsten Information
- Published on Tuesday, 12 May 2020 19:03
- Written by Yahong
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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.