This paper describes key technologies needed for constructing ULTIMATE, including an 8-ps resolution timing generator, a formatter with a realtime waveform control function, a 2.5-ps resolution standard comparator, and a miniaturized 3-GHz 59-pole channel selector. Almost all the pin-electronics hardware has been integrated on 12 kinds of LSIs, 8 of which are 2.5K-gate and 400-gate ultra-high speed bipolar gate arrays. ULTIMATE realizes ±55 -ps overall timing accuracy by the timing calibration method which combines a standard comparator-based method and a TDR-based method.
['Teruo Tamama', 'Naoaki Narumi', 'Taiichi Otsuji', 'Masao Suzuki', 'Tsuneta Sudo']
Key technologies for 500-MHz VLSI test system ultimate