Abstract: This disclosure is directed to shared antenna tuning. An electronic device may receive a global navigation satellite system (GNSS) tune request to tune a shared antenna to a GNSS signal frequency. The electronic device may then tune the antenna to the GNSS signal frequency and enable a GNSS receiver. The electronic device may also receive a cellular tune request to tune the antenna to a cellular frequency. The electronic device may tune the antenna to a cellular frequency and may deactivate the GNSS receiver or blank the GNSS receiver. In some embodiments, the electronic device may also communicate with a Low Earth Orbit (LEO) satellite. During LEO satellite communication, the electronic device may transmit a signal to blank a GNSS L1 receiver to avoid signal interference with the LEO satellite communication, and activate a GNSS L5 receiver to receive GNSS signals.

Abstract: Design errors generated employing a mask rule check (MRC) program are indexed and examined one by one by an automated computer program connected to a false error pattern database that contains previously known waivered patterns, a real error pattern database that contains previously known pairs of an error-containing pattern and a corresponding error-free pattern, and optionally a mask house rule database. A waiver is applied to each design error for which a matching pattern is found in the false error pattern database. Each design error for which a match is found in the real error pattern database is modified to substitute an error-free pattern for an error-containing pattern therein. The output of the automated program includes a list of design errors for which no solution is found by the automated program.

Abstract: Design errors generated employing a mask rule check (MRC) program are indexed and examined one by one by an automated computer program connected to a false error pattern database that contains previously known waivered patterns, a real error pattern database that contains previously known pairs of an error-containing pattern and a corresponding error-free pattern, and optionally a mask house rule database. A waiver is applied to each design error for which a matching pattern is found in the false error pattern database. Each design error for which a match is found in the real error pattern database is modified to substitute an error-free pattern for an error-containing pattern therein. The output of the automated program includes a list of design errors for which no solution is found by the automated program.

Abstract: A library of waivable images with corresponding waiver constraints is generated. Each of the waivable images is an image of a region of a reference design layout including a raw error as determined by an optical rule checks (ORC) program and does not require a correction for printability on a photoresist layer. A list of raw errors is generated by running the ORC program on a target design layout. Error region images corresponding to the list of raw errors are generated by selecting a region of the target design layout around points corresponding to the raw errors. A list of matches between the library of waivable images and the error region images is generated. By removing a subset of raw errors that correspond to a subset of the list of matches from the list of raw errors, a list of real errors is generated.