A novel zone melting method to purify industrial phosphorus is introduced. Since there is no chemical solvent for phosphorus, chemical extraction purification does not work for arsenic purification. Zone melting is a method for removing impurities from solid materials. This method with a special set.....
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Zeolites are microporous crystalline aluminosilicate molecular sieve that have pore sizes ranging from about 0.3 to 1 mm. Due to their uniform, molecular-sized pores, they can separate molecules based on their size, shape and polarity. They can therefore act as ''molecular sieves''. Membranes made o.....
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Power management is necessary to reduce standby power consumption of low-power portable applications such as mobile phones and personal digital assistants (PDAs). A low-dropout regulator (LDO) is a type of voltage regulator that is widely utilized in power management integrated circuits. In order to.....
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Conventionally, frequency tuning is achieved by changing the capacitance of a tank using varactor. However, it is more power efficient to minimize the capacitance of the tank and adjust the inductance for frequency variation. Therefore, the need for a variable inductor arises.A novel integrated vari.....
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Three-dimensional integrated circuit (IC) is considered to be one of the most promising method for implementing future high density and performance IC applications. However, setting up a satisfying IC device is still a very challenging technically under current technology. Problems include challenge.....
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