TRS3221EIDBR_GCJ31CR71H225KA12K Introduction

. To see the growth process of the giants of Texas Instruments, it is necessary to start with the history of the changes of the entire analog IC. We went back 24 years to the ranking of analog ICs in 1995, and we found some interesting changes compared to 2019. The semiconductor industry is not without major mergers and acquisitions, which have a significant impact on the rankings of the analog IC industry.

According to IC Insights statistics, in the past 10 years (2009-2018), all 11-ball semiconductor manufacturers closed or rebuilt a total of 97 fabs. . Among them, 42 150mm fabs and 24 200mm fabs were closed, while the number of closed 300mm fabs accounted for only 10% of the total. The details are shown in the figure below.

TRS3221EIDBR_GCJ31CR71H225KA12K

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Philips, the second-ranked analog IC supplier in 1995, spun off its semiconductor business to form NXP Semiconductors in 2006. Now NXP is No. 6 on the 2019 list.

Shares in the company tumbled about 5% after the bell. Analysts and investors speculated that the main reason for the lower-than-expected third-quarter forecast was that some of the orders were "stock-up" purchases by customers out of panic. .

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

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TRS3221EIDBR_GCJ31CR71H225KA12K

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By 2019, Infineon had jumped to third place in the rankings. Siemens, which ranked ninth in 1995, spun off its semiconductor business to become Infineon in 1999.

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In short, advances in BAW technology have brought "higher performance, simpler design, lower cost and smaller size" to wired and wireless networks, Wong explained.

"The new BAW resonator technology is important because TI is integrating it into its silicon products, reducing design time, solution size and component cost," said Philip Solis, research director for connectivity and smartphone semiconductors at IDC.

TRS3221EIDBR_GCJ31CR71H225KA12K

Only the ladder type and lattice type are briefly introduced here. The BAW filter can connect multiple resonators according to a certain topology. There are many types of BAW filters, including ladder type filter, lattice type filter, stacked crystal filter and coupled resonator filter.

. The particles in the solid vibrate in an elliptical trajectory, and the long axis of the ellipse is perpendicular to the surface of the solid. For SAW, also called Rayleighsurface wave, there are both longitudinal waves and transverse waves.

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