2022-11-30

The reporter learned from Anhui Quantum Computing Engineering Research Center recently that China's quantum computer "Wukong" is about to come out, and China's first production line of quantum chips is working hard to produce "Wukong Core" - a quantum chip supporting "Wukong". In order to produce China's fully autonomous and controllable quantum chips with high quality, a pair of "hot eyes" - the first NDPT-100 nondestructive probe electrical measurement platform dedicated to the production of quantum chips in China, referred to as "nondestructive probe platform", are used in this quantum chip production line. It can realize fast and accurate measurement of quantum bit resistance, identify the quality of quantum chip with almost zero damage like Sun Wukong's "golden eye", and further improve the yield of quantum chip. It is understood that the nondestructive probe platform is completely independently developed by Hefei Benyuan Quantum Computing Technology Co., Ltd., with the minimum measurement range reduced to micrometer level. The diameter of the film scar caused by the probe is at least within 1 micrometer. The measurement process does not affect the coherent performance of superconducting quantum bits, and has the advantages of high stability and high motion accuracy. It is also suitable for precision electrical testing of semiconductor chips, semiconductor devices, and so on. At present, the nondestructive probe platform has been put into use on the first quantum chip production line in China. "The lossless probe stage plays an important role in the production of quantum chips. It can quickly and accurately identify which quantum bits on the quantum chip are qualified and which are unqualified, just like Sun Wukong's eye to identify 'monsters'." Dr. Jia Zhilong, deputy director of Anhui Quantum Computing Engineering Research Center, said that just like the lithography machine is an industrial machine for traditional chip manufacturing, this instrument is also one of the industrial machines for quantum chips and a necessary tool for producing quantum chips. It can greatly shorten the research and development cycle of quantum chips and further improve the yield of quantum chips. (Liu Xinshe)

Edit:wangwenting    Responsible editor:xiaomai

Source:people.cn

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