Let $(F,|.|)$ be a complete algebraically closed field. Let $x$ be the point of type 5 corresponding to the unit open disc of the adic affine line over $F$. Can we obtain a concret description of the complete residue field of $x$ (as for point of type 2 or 3)? is the local ring of $x$ coincides with the Robba ring?

Let $(F,|.|)$ be a complete algebraically closed field. Let $x$ be the point of type 5 corresponding to the unit open disc of the adic affine line over $F$. Can we obtain a concrete description of the complete residue field of $x$ (as for point of type 2 or 3)? Does the local ring of $x$ coincide with the Robba ring?