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In addition, in the SOS microelectronic circuit design and production, all kinds of semiconductor devices usually need to make on the structural integrity silicon thin film, and because thermal expansion coefficient of silicon is similar to sapphire, a... moreIn addition, in the SOS microelectronic circuit design and production, all kinds of semiconductor devices usually need to make on the structural integrity silicon thin film, and because thermal expansion coefficient of silicon is similar to sapphire, a silicon monocrystalline film (100) can be grown on the surface orientation(1-102) of the sapphire substrate by heteroepitaxy.
At present, sapphire crystal has become a widely used substrate for the growth of semiconductor materials. #sos #wafers
https://www.cryscore.com/silicon-on-sapphire.html less
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S11
#kid #smart #watch #phone #gps #tracker #with #sos #camera
4G Smart HD Camera & Video Watch
HD Video Call, Seeing Your Love
4G Video Call
Kid smart watch with camera of HD video call, this kids video watch can help you to make face-to-face... moreS11
#kid #smart #watch #phone #gps #tracker #with #sos #camera
4G Smart HD Camera & Video Watch
HD Video Call, Seeing Your Love
4G Video Call
Kid smart watch with camera of HD video call, this kids video watch can help you to make face-to-face conversations easier and closer.
Multiple
Positioning Modes
With multiple positioning modes, GPS+AGPS+LBS+WiFi，you can use gps tracking children's watches to find your child's real-time location anytime, anywhere.
Safe Zones
Set a safe-zone for your child based on the advanced geofencing function. When a child enters or leaves the safe-zone, this GPS watch with the camera can send notifications immediately to your phone.
https://www.umeox.com/products/s11-4g-smart-hd-camera-video-watch/ less
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