The present invention provides a high-speed processing and high precision delay calculation method of semiconductor integrated circuit devices having a plurality of cells and interconnections connecting therebetween, with less data to be obtained prior to delay calculation. The crystal comprising the two components, and minor amounts of water, shows improved properties such as crystallization behavior stability and decreased hydroscopic behavior. A receiver unit in accordance with the invention, rather than immediately attempting to send a request, waits a period of time before sending the request so as not to overload the server.