Patent ID: 8498911

Claim:
A charging method in a particle generation factor determining system including a user interface device through which a user inputs first information on a particle adhered to a substrate and having a display, and a server which checks a possibility of each of multiple particle generation factors, the method comprising: a score calculating process in which the server receives the inputted first information and calculates the possibility of each of the multiple particle generation factors as a score based on the received first information; an information displaying process in which the user interface device displays, on the display, the calculated score and a part of second information on the particle generation factor corresponding to the score; and a charging process in which the server provides the second information to the user interface device in response to selection of the displayed part of the second information and charges a fee for providing the second information, wherein in the charging process, the charged fee is determined based on the score of the particle generation factor corresponding to the provided second information, and all of the second information or detailed information of the second information is provided to the user interface device, and the server obtains a first keyword related to each of the multiple particle generation factors and selects and obtains the second information based on the obtained first keyword.