A new liquid crystal display (LCD) which eliminates the need for a conventional output polarizer is discovered. The display comprises only a liquid crystal (LC) cell, a single input polarizer, a reflector placed behind the cell, and a retardation film placed between the reflector and the cell. A Jo.....
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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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Many electronic applications require multiple regulated supply voltages to cater for needs from the different function modules inside. A new single-inductor multiple-output (SIMO) switching converter is designed to operate in pseudo-continuous conduction mode (PCCM) with free wheel switching, and ca.....
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Low-dropout regulator is a commonly used component in the power management integrated circuits for portable electronic devices. Conventionally, the stability of the regulator was achieved by frequency compensation such as dominant-pole compensation and pole-zero cancellation. However, this limits th.....
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Gamma Fe2O3 (maghemite), alpha Fe2O3 (hematite) and Fe3O4 (magnetite) are the three commonly used iron oxides. These iron oxides are known to have many important technological applications, including application in the field of clinical medicine and electronics. Two general methods for producing iro.....
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