Lower electrode and reaction chamber
A technology of electrodes and dielectric constants, applied in circuits, discharge tubes, electrical components, etc., can solve the problem of inability to adjust the electric field distribution and etch uniformity of the wafer 13
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Embodiment 1
[0031] Such as Figure 3-6 As shown, this embodiment provides a lower electrode 1, the lower electrode 1 includes an electrostatic chuck 2 and a lower electrode interface plate 7 arranged below the electrostatic chuck 2, and the lower electrode interface plate 7 is used for installation and The component interface 6 connected to the electrostatic chuck 2, the lower electrode interface plate 7 includes the lower electrode interface plate body 8, the receiving part provided on the lower electrode interface plate 7, and the lower electrode interface plate 7 also includes the lower electrode interface plate 7. The partial permittivity adjustment block 10 with different permittivity of the lower electrode interface plate body 8 is described, and the accommodating part is used to accommodate the local permittivity adjustment block 10, and the partial permittivity adjustment block 10 is selectively accommodated in the accommodating part. The dielectric constant adjustment block 10 is...
Embodiment 2
[0050] This embodiment also provides a reaction chamber, in which the lower electrode in Embodiment 1 is arranged.
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