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IEEE/ICACT20240058 Question.6 Questioner: jh.deng@saturn.yzu.edu.tw 2024-01-31 오전 1:07:14	IEEE/ICACT20240058 Answer.6 Answer by Auhor mingannchung@ntut.edu.tw 2024-01-31 오전 1:07:14
Generally, is the first layer the metal antenna layer, and the second layer the ground layer? In the layer stack, the ground is not directly below the metal layer. Could you please explain the reason for this?	In this high-precision chip process, we designate the Metal 1 layer as the ground layer, which is crucial for the overall stability and performance of the chip. For the metal antenna layer, we select the highest layer, Metal 6, as this configuration significantly enhances the radiation efficiency and signal reception capability of the antenna.

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