The invention relates to a circuit
layout technology for automatically generating analog and mixed signals, in particular to a
layout structure with a standard unit-modular MOS (
Metal Oxide Semiconductor) tube and a use method. The objective of the invention is to solve the problem that
layout generation and layout wiring cannot be automated due to lack of standard structures and non-adjacency of existing automatically generated MOS
transistor layouts. According to the main scheme, the MOS
transistor layout design of the standard unit-
modular structure is included, each standard unit comprises two pieces of virtual
polycrystalline silicon, a layout wiring boundary, a power source track and a
ground track, the shape and size are regular, the standard unit can be adjacent to the standard unit of the same type in any direction, and the standard unit can be recognized by an EDA tool so as to adapt to the EDA tool and improve layout efficiency. In addition, the invention also provides a use method, which comprises the following steps of: performing automatic layout and wiring through an EDA tool, firstly performing automatic layout and wiring on a circuit formed by NMOS (N-channel
Metal Oxide Semiconductor) tubes to form an NMOS module, then performing automatic layout and wiring on a circuit formed by PMOS (P-channel
Metal Oxide Semiconductor) tubes to form a PMOS (P-channel Metal
Oxide Semiconductor) module, and finally performing automatic wiring on a connection relationship between the two modules. The automatic generation of the circuit structure layout formed by the MOS tubes in the analog and
hybrid circuit is realized, so that the layout generation efficiency is improved.