DIGITAL CIRCUIT DEVICE, AND METHOD OF TESTING SEMICONDUCTOR DEVICE
PROBLEM TO BE SOLVED: To precisely conduct clock distribution even when delay time fluctuation is generated cauded by fluctuation of a device operation condition, in a digital circuit device. SOLUTION: In this digital circuit device, the delay time fluctuation accompanied to the fluctuation of the d...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To precisely conduct clock distribution even when delay time fluctuation is generated cauded by fluctuation of a device operation condition, in a digital circuit device. SOLUTION: In this digital circuit device, the delay time fluctuation accompanied to the fluctuation of the device operation condition is corrected by circuit parts 10A-10C for measuring delay times in delay circuits 1A-1C for phase shift regulation, operation circuits B (11A-C) for computing fluctuation ratios based on measured values, and operation circuits A (12A-C) provided in the respective delay circuits to calculate fluctuation amounts based on the fluctuation ratios. |
---|