AD1021ARQ_AD1895AY Introduction

In April 2019, Texas Instruments released the construction plan for this 300mm fab, with an estimated investment of 3.1 billion zhuan. However, in view of the sluggish semiconductor market in 2019 and the unsatisfactory revenue situation, TI's plan to invest in the construction of a 300mm wafer fab in Richardson is not as smooth as originally expected, and it may be delayed for two years to complete.

In April 2019, Diodes completed the acquisition of Texas Instruments' 150mm/200mm wafer fab (GFAB) in Greenock, Scotland, UK, as part of TI's strategy to gradually abandon outdated capacity. Texas Instruments currently has 15 wafer fabs in 9 countries, of course, these plants include outdated capacity that is about to close, as well as new 300mm capacity.

AD1021ARQ_AD1895AY

AD1583BRTZ-REEL7

AD1580BRTZ-REEL7 AD1580BRTZ-REEL7 AD1580BRTZ-REEL7 AD1580BRTZ-REEL7/AD1580BRT AD1582ART.

AD1201BRZ AD1210BRZ AD1251ARZ AD1332BD AD1334BD.

AD1580ART-REEL7 AD1580ART-RL7 AD1580ARTZ AD1580ARTZ AD1580ARTZ-REEL.

AD1583ARTZ-REEL7 AD1583ARTZ-REEL7 AD1583ARTZ-RL7 AD1583BRT-REEL7 AD1583BRT-REEL7.

AD1021ARQ_AD1895AY

AD239

AD1032AR AD1032AR AD1032AR AD1032AR AD1062KN.

AD1028ARQ AD1028ARQ AD1030ARQ AD1030ARQ AD1031A-RQ.

AD1583BRTZ-RL7 AD1583CRT-REEL7 AD1583CRT-RL7 AD1583CRTZ AD1583CRTZ.

AD1580ART AD1580ART-REEL AD1580ART-REEL7 AD1580ART-REEL7 AD1580ART-REEL7.

AD1021ARQ_AD1895AY

The working principle is as shown below. The typical basic structure is shown in the figure (a) above, with the piezoelectric layer sandwiched between the upper and lower metal electrodes, the corresponding mBVD equivalent circuit is shown in the figure (b) above, and the corresponding impedance is shown in the figure (c) above. It can be seen that there are two resonance frequencies, series (fs) and parallel (fp).

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. Radio waves, microwaves, visible light, X-rays, and gamma rays are all electromagnetic waves.

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