Patent ID: 7855047

Claim:
A manufacturing method for a semiconductor device, comprising: coating a first photoresist film on an underlying film on a semiconductor substrate; transferring a circuit pattern having first and second openings provided adjacent to each other sandwiching a first opaque portion and a monitor mark provided over an entire area where the circuit pattern is formed, onto the first photoresist film from a first photomask by a first exposure step so as to delineate a wiring resist mask and a monitor resist pattern, the monitor mark provided at a corresponding position where another circuit pattern is configured to be printed on the semiconductor substrate in a later process; selectively removing the underlying film by using the wiring resist mask and the monitor resist pattern as a mask so as to delineate a narrow line portion of a wiring of a circuit and a monitor underlying film; coating a second photoresist film on the semiconductor substrate on which the narrow line portion and the monitor underlying film is formed; delineating a trim resist mask by transferring a trim pattern from a second photomask onto the second photoresist film by a second exposure step, the trim pattern having a second opaque portion covering the first opaque portion in an area occupied by the circuit pattern, and an extending portion connected to one end of the first opaque portion and extending outside the area occupied by the circuit pattern; and delineating the wiring by selectively removing the monitor underlying film using the trim resist mask.