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Issue with Geometry Layer Settings in Comsol 5.3 Semiconductor Module

Posted 2 oct. 2017, 17:01 UTC−4 1 Reply

Jeff Cammerata
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I am working with Comsol 5.3 and the corresponding Semiconductor Module. I am specifying the dimensions and layers for a p-i-n junction. I have 3 layers which are 2 um, 6 um and 2 um in thickness. The total thickness or height of is 10 um (specified in the Size and Shape field). The layers are specified in the Layers field. When I specify the 3 layers, Comsol adds a fourth layer for some reason. It also says that the layers to do not fit into the geometry of the device. Why is this happening?

1 Reply Last Post 3 oct. 2017, 08:52 UTC−4
Sergei Yushanov Certified Consultant
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Posted: 7 years ago 3 oct. 2017, 08:52 UTC−4

Jeff,

For solid domain of thickness 10 um, you need to specify only two layers from the top of thickness 2 um and 6 um. The result is three-layered domain with third layer thickness being 10 um -(2 um + 6 um) placed at the bottom.

Regards, Sergei

Jeff, For solid domain of thickness 10 um, you need to specify only two layers from the top of thickness 2 um and 6 um. The result is three-layered domain with third layer thickness being 10 um -(2 um + 6 um) placed at the bottom. Regards, Sergei

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