TPS54260DGQR_LQH3NPN1R5MGRL Introduction

In contrast, Intel raised its full-year forecast on Thursday, with Chief Executive Pat Gelsinger saying it could take two years for the chip industry to catch up with "explosive demand" and predicting PC sales driven by mass work-from-home arrangements. The boom will continue into next year. . Texas Instruments' third-quarter sales forecast on Wednesday was largely flat, with company executives declining to disclose sales for the latter quarter of the year, suggesting product orders may be slowing.

We are excited about this team's engineering experience and technical skills in advanced semiconductor process enhancement and fabrication. "The Lehi fab has excellent assets and teams," said Kyle Flessner, senior vice president of technology and manufacturing at TI.

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"Everyone uses quartz crystals for clocks," Solis said. Today, timing often requires a quartz crystal. In this case, BAW resonator technology offers TI a huge advantage by eliminating the need for external components mounted on the PCB.

So, does this mean that 150mm wafers are gradually withdrawing from the stage of history? The answer is no, there is still a huge market space for 150mm wafers. A large number of 150mm fabs in the industry were closed, and more and more 300mm fabs were launched and gradually achieved mass production.

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In order to keep the acoustic wave in the piezoelectric film to oscillate, there must be sufficient isolation between the oscillating structure and the external environment to obtain a small loss and a large Q value. . The propagation speed of sound waves in solids is ~5000m/s, which means that the acoustic impedance of solids is about 105 times that of air, so 99.995% of the sound wave energy will be reflected back at the boundary between the solid and the air, which is the same as the original wave (incident wave). together to form a standing wave. On the other side of the oscillating structure, the acoustic impedance of the piezoelectric material is not much different from that of other substrates (such as Si), so the piezoelectric layer cannot be deposited directly on the Si substrate.

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The technology, which also enables high-precision and robust communication between IoT devices, can now be developed in a less bulky form, said Kim Wong, vice president of high-speed data and clocking at TI.

"TI has been involved in MEMS for years. When asked why no one in the industry has built something like a BAW resonator, Upton said, "It's very difficult to develop. However, converting electrical energy into mechanical acoustics while keeping the signal stable and robust within a clean clock is not easy.

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. The resonator used in the Ladder type (SAW is also mentioned later) includes series and parallel. A series resonator plus a parallel resonator is called a stage, and the entire ladder type filter can be composed of several stages.

Radio waves, microwaves, visible light, X-rays, and gamma rays are all electromagnetic waves. Physically, waves are mainly divided into two types, one is electromagnetic wave, which does not require any medium, but propagates through the periodic oscillation of the electric and magnetic fields generated by the initially charged particles. It can also propagate in a vacuum.

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