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Eddy current measurement of the thickness of top Cu film of the multilayer interconnects in the integratedcircuit (IC) manufacturing process

Zilian QU,Yonggang MENG,Qian ZHAO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 1-6 doi: 10.1007/s11465-015-0325-2

Abstract: interconnects in the chemical mechanical polishing (CMP) process, which is an important step in the integratedcircuit (IC) manufacturing.The influence of the underneath circuit layers on the eddy current is modeled and treated as an equivalent

Keywords： CMP     eddy current     multilayer wafer     Cu interconnects     equivalent unit    

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Thoughts on China’s Integrated Circuit Chip Manufacturing in the Post-Moore Era

Hanming Wu, Feijun Zheng

Engineering 2023, Volume 23, Issue 4,   Pages 33-39 doi: 10.1016/j.eng.2022.07.021

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Development of High-purity Metal Sputtering Targets for Integrated Circuits

He Jinjiang , Lyu Baoguo , Jia Qian , Ding Zhaochong , Liu Shuqin ,Luo Junfeng , Wang Xingquan

Strategic Study of CAE 2023, Volume 25, Issue 1,   Pages 79-87 doi: 10.15302/J-SSCAE-2023.01.003

Abstract: style="text-align: justify;">High-purity metal sputtering target is one of the key basic materials for integratedSelf-dependence of the sputtering targets is vital for the high-quality development of the integratedcircuit industry in China.analyzes the application demand for and development status of high-purity metal sputtering targets for integrated

Keywords： high-purity metal     sputtering target     integrated circuit     thin film     metallization    

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Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1581-0

Abstract:

● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis.

Keywords： Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

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Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1723-z

Abstract:

● Au, Ag and Pd were recovered from WPCBs with high efficiencies.

Keywords： Thiosulfate     Printed circuit boards     Precious metals     Leaching     Hydrometallurgy    

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Research on the equivalent circuit parameter　of single linear induction motor

Xu Wei,Sun Guangsheng

Strategic Study of CAE 2008, Volume 10, Issue 8,   Pages 76-80

Abstract:

The SLIM parameter has clear error to its real value on the base of the RIM parameter measurement method because it has larger air gap and edge effect. This paper proposes a new scheme suited for SLIM parameter detection. It only needs input total power, phase voltage, phase current, frequency, and then computes primary resistance, primary leakage induction, secondary resistance, secondary leakage induction, air induction and iron loss resistance. The performance analysis of SLIM indicates that this method is very effective and valuable.

Keywords： single linear induction motor     open-secondary circuit experiment     blocked-secondary circuit experiment     parameter measurement     equivalent circuit    

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Direct writing of electronics based on alloy and metal (DREAM) ink: A newly emerging area and its impact on energy, environment and health sciences

Qin ZHANG, Yi ZHENG, Jing LIU

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 311-340 doi: 10.1007/s11708-012-0214-x

Abstract: Electronics, such as printed circuit board (PCB), transistor, radio frequency identification (RFID),Conventional fabrication strategy towards integrated circuit (IC), requesting at least six working steps

Keywords： based on alloy and metal (DREAM) ink     direct writing of electronics     printed electronics     liquid metal ink     integratedcircuit     consumer electronics     nano liquid metal    

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Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 420-426 doi: 10.1007/s11465-017-0439-9

Abstract: In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG areThe generator is simulated and tested experimentally using the established equivalent circuit model.Results show the validity of the equivalent circuit model.

Keywords： wind power     brushless electrically excited synchronous generator     hybrid rotor     equivalent circuit    

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Copper recovery from waste printed circuit boards concentrated metal scraps by electrolysis

Xiaonan Liu, Qiuxia Tan, Yungui Li, Zhonghui Xu, Mengjun Chen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0997-4

Abstract: Copper recovery is the core of waste printed circuit boards (WPCBs) treatment.Thus, electrolysis proposes a feasible and prospective approach for waste printed circuit boards recycle

Keywords： Waste printed circuit boards (WPCBs)     Copper     Recovery rate     Purity     Electrolysis    

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Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1405-7

Abstract:

• Copper fractal growth was observed during WPCBs recycling by slurry electrolysis.

Keywords： Dendritic copper     Fractal growth     WPCBs     Slurry electrolysis    

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A large-current, highly integrated switched-capacitor divider with a dual-branch interleaved topology Research Articles

Sheng LIU, Menglian ZHAO, Zhao YANG, Haonan WU, Xiaobo WU,liusheng_0827@zju.edu.cn,zhaoml@zju.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 317-327 doi: 10.1631/FITEE.2000404

Abstract: Because it is magnet-free and can achieve a high integration level, the switched-capacitor (SC) converter acting as a direct current transformer has many promising applications in modern electronics. However, designing an SC converter with large current capability and high power efficiency is still challenging. This paper proposes a dual-branch SC voltage divider and presents its (IC) implementation. The designed SC converter is capable of driving large current load, thus widening the use of SC converters to high-power applications. This SC converter has a constant conversion ratio of 1/2 and its dual-branch interleaved operation ensures a continuous input current. An effective on-chip gate-driving method using a capacitively coupled floating-voltage level shifter is proposed to drive the all-NMOS power train. Due to the self-powered structure, the flying capacitor itself is also a bootstrap capacitor for gate driving and thus reduces the number of needed components. A digital frequency modulation method is adopted and the switching frequency decreases automatically at light load to improve light load efficiency. The converter IC is implemented using a 180 nm triple-well BCD process. Experimental results verify the effectiveness of the dual-branch interleaved operation and the self-powered gate-driving method. The proposed SC divider can drive up to 4 A load current with 5–12 V input voltage and its power efficiency is as high as 96.5%. At light load, using the proposed optimization method, the power efficiency is improved by 30%.

Keywords： Switched-capacitor converter     Dual branch     Integrated circuit     Bootstrap gate driver    

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Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye

Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 179-183 doi: 10.1007/s11708-012-0177-y

Abstract: The open circuit voltage ( ) of small-molecule organic solar cells (OSCs) could be improved by doping

Keywords： organic solar cells (OSCs)     open circuit voltage     fluorescent dye doping     4-(dicyanomethylene)-2-t-butyl    

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A critical review on the recycling of copper and precious metals from waste printed circuit boards using

Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0995-6

Abstract: In particular, waste printed circuit boards (PCBs) have become of global concern with regard to environmental

Keywords： Waste PCBs     Precious metals     Hydrometallurgy     Recycling     Leaching     Recovery    

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Ten-channel mode-division-multiplexed silicon photonic integrated circuit with sharp bends Special Feature on Optoelectronic Devices and Inte

Chen-lei LI, Xiao-hui JIANG, Yung HSU, Guan-hong CHEN, Chi-wai CHOW, Dao-xin DAI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 4,   Pages 498-506 doi: 10.1631/FITEE.1800386

Abstract:

A multimode silicon photonic integrated circuit (PIC) comprising a pair of on-chip mode (de)multiplexers

Keywords： Silicon     Multimode     Waveguide     Euler-bends    

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Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review Review Articles

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 72-96 doi: 10.1631/FITEE.1900467

Abstract: In this paper, energy-efficient integrated Doherty PA monolithic microwave integrated circuits (MMICs

Keywords： Energy-efficient     Linearization     Massive multiple input multiple output (mMIMO)     Monolithic microwave integratedcircuit (MMIC)     Power amplifier    

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Title Author Date Type Operation

Eddy current measurement of the thickness of top Cu film of the multilayer interconnects in the integratedcircuit (IC) manufacturing process

Zilian QU,Yonggang MENG,Qian ZHAO

Journal Article

Thoughts on China’s Integrated Circuit Chip Manufacturing in the Post-Moore Era

Hanming Wu, Feijun Zheng

Journal Article

Development of High-purity Metal Sputtering Targets for Integrated Circuits

He Jinjiang , Lyu Baoguo , Jia Qian , Ding Zhaochong , Liu Shuqin ,Luo Junfeng , Wang Xingquan

Journal Article

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Journal Article

Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit

Journal Article

Research on the equivalent circuit parameter　of single linear induction motor

Xu Wei,Sun Guangsheng

Journal Article

Direct writing of electronics based on alloy and metal (DREAM) ink: A newly emerging area and its impact on energy, environment and health sciences

Qin ZHANG, Yi ZHENG, Jing LIU

Journal Article

Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind

Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU

Journal Article

Copper recovery from waste printed circuit boards concentrated metal scraps by electrolysis

Xiaonan Liu, Qiuxia Tan, Yungui Li, Zhonghui Xu, Mengjun Chen

Journal Article

Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Journal Article

A large-current, highly integrated switched-capacitor divider with a dual-branch interleaved topology

Sheng LIU, Menglian ZHAO, Zhao YANG, Haonan WU, Xiaobo WU,liusheng_0827@zju.edu.cn,zhaoml@zju.edu.cn

Journal Article

Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye

Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG

Journal Article

A critical review on the recycling of copper and precious metals from waste printed circuit boards using

Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang

Journal Article

Ten-channel mode-division-multiplexed silicon photonic integrated circuit with sharp bends

Chen-lei LI, Xiao-hui JIANG, Yung HSU, Guan-hong CHEN, Chi-wai CHOW, Dao-xin DAI

Journal Article

Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Journal Article