With the development of ball grid array (BGA), the strength of BGA becomes important. High speed single solder ball test is one effective method to test BGA strength. This design provides one machine to test single sold ball strength at high speed. The advantage of this design is multi-solder balls .....
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The present invention relates to a noise attenuating window comprised of two panes of glass separated by a spacer tube. The spacer tube contains T-shaped acoustic resonator capable of targeting a single mode or multiple-mode to be attenuated.
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The present invention relates to a method and an apparatus for authenticating location-based services without compromising location privacy, which comprises a comprehensive solution that preserves unconditional location privacy when authenticating range queries using three authentication schemes, to.....
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This invention provides double-skin tubular structural members having fiber-reinforced polymer outer tubes, steel or otherwise generally metallic inner tubes and generally a bound aggregate such as concrete in between the tubes.
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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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