AD1583ARTZ-REEL7_AD1988XCPZ Introduction

In addition, Renesas has adjusted its factory in Otsu, Shiga Prefecture, Japan, to manufacture optoelectronic devices. Taking Renesas as an example, the company's two recently closed fabs are both 150mm, including a factory in Kochi Prefecture, Japan, which mainly produces analog, logic devices and some old-fashioned micro components. It is reported that Renesas expects to close two more 150mm fabs in 2020 or 2021. From a regional perspective, Japan closed a larger number of fabs.

. 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. The details are shown in the figure below. 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.

AD1583ARTZ-REEL7_AD1988XCPZ

AD1816AJS

AD1021AARQZ AD1021AARQZ AD1021ARQ AD1021RQ AD1021RQ.

AD1380KD AD1380KD AD1380KD/JD AD1382KD AD1382KD AD1385JD.

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

AD11/2016-0REEL AD11/2041-0REEL AD11/2041-0REEL AD1100ARZ AD1111A-ADJ.

AD1583ARTZ-REEL7_AD1988XCPZ

AD22105AR

AD1584BRTZ-REEL7 AD1584BRTZ-REEL7 AD1584CRTZ-REEL7 AD1584CRTZ-REEL7 AD1585ART.

AD1201BRZ AD1210BRZ AD1251ARZ AD1332BD AD1334BD.

AD1583CRTZ-REEL7 AD1584ART-R2 AD1584ART-REEL AD1584ART-REEL7 AD1584ART-REEL7.

AD1584ART-RELL7 AD1584ARTZ AD1584ARTZ AD1584ARTZ-R2 AD1584ARTZ-REEL7.

AD1583ARTZ-REEL7_AD1988XCPZ

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).

The BAW filter is more suitable for frequencies above 2.5GHz. The manufacturing process of the BAW filter is also very consistent with the existing IC manufacturing process, and is suitable for overall integration with other active circuits. .

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