1. Powder metallurgy: Powder metallurgy is one of the main methods for preparing tungsten-rhenium probe cards. This method is to make tungsten powder into tungsten blanks through processes such as pressing and sintering, and then make tungsten-rhenium probe cards through processes such as processing and heat treatment. The advantages of this method are high production efficiency and low cost, but the purity of the tungsten-rhenium probe card is low.
2. Melting method: The smelting method is to heat the tungsten raw material to a molten state, and then make tungsten ingots through processes such as refining and pouring, and finally make tungsten-rhenium probe cards through processes such as processing and heat treatment. The advantages of this method are that the tungsten-rhenium probe card has high purity and good mechanical properties, but the production efficiency is low and the cost is high.
3. Machining method: The machining method is to process tungsten rods or tungsten plates into tungsten-rhenium probe cards through machining methods such as turning and milling. The advantage of this method is that the tungsten-rhenium probe card has high precision and good surface quality, but the production efficiency is low and the cost is high.
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