Initial Data Capture.
Initial Data Capture (IDC) is the first phase of the publication process for a patent where the patent file is electronically captured. It takes approximately 6 weeks from the date that the allowed file is received for the completion of the Initial Data Capture of the application. The application is then sent to the File Maintenance Facility (FMF) for matching of the issue fee and any other correspondence. The application may stay in the FMF for approximately 1-2 weeks. However, if all requirements are not yet fulfilled the application will remain at the FMF until the requirements are met. Once all files are matched, the application will move to the FDC.
Source: U.S. Patent and Trademark Office.