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Capacitive structure: how high-voltage isolation technology works

12th December 2018
Alex Lynn
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In this video, Tom Bonifield, a high-voltage isolation technologist at Texas Instrument in one of the high-voltage labs at TI, discusses the high-voltage isolation structure itself. This video is part of a series of videos on high-voltage reinforced isolation quality and reliability.

Reinforced isolation technology at Texas Instruments is realised by using thick silicon dioxide capacitors combined in series. Each channel uses high-voltage isolation capacitors on both die. As you can see in the video, where there is a die on the left side and a die on the right side, and each of them have a high-voltage capacitor. And they're connected in series. The combined isolation capacitor thickness is greater than 21 microns.

To watch the video, click here.

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