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High-temperature superconducting shift registers operating at up to 100 GHz

机译:高温超导移位寄存器,工作频率高达100 GHz

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Shift registers have been demonstrated in YBaCuO operating at 77 K using from 64 to over 1000 junctions. These are some of the larger scale integrated circuits demonstrated to date using YBaCuO Josephson technology. The circuit is a modified rapid single flux quantum design in which a single trigger pulse causes a one bit shift of the entire word of 32-512 b in length. Two different junction technologies, electron-beam defined nanobridges and epitaxial edge junctions, have been used with parameter spreads ranging from 11% to 22%. Correct operation has been verified with low speed random word tests and circulating data tests while pseudo random bit sequence demonstrations are underway. A practical amount of time to shift between cells has been measured to be about 10 ps.
机译:YBaCuO已在64 K至1000多个结点上以77 K的工作电压进行了移位寄存器的演示。这些是迄今为止使用YBaCuO Josephson技术演示的一些大规模集成电路。该电路是一种改进的快速单通量量子设计,其中单个触发脉冲导致整个32-512 b字长移位一位。已使用两种不同的结技术,即电子束定义的纳米桥和外延边缘结,其参数分布范围为11%至22%。在进行伪随机位序列演示时,通过低速随机字测试和循环数据测试已验证了正确的操作。在单元之间移动的实际时间已被测量为约10 ps。

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