Yangtze Memory Technologies Co., Ltd.

Yangtze University

Innovation Academy for Precision Measurement Science and Technology, Cas

Zhi Zhang

Zhiliang Xia

Wenxi Zhou

Fan Zhang

Zhong Zhang

Zhongwang Sun

Fei Li

Yang Li

Yuehui She

Gaoming Yu

Wenda Zhang

Yangyang Feng

Shaojin Yi

Shanshan Sun

Linqi Hu

Anying Zheng

Hao Dong

Puyong Yao

Xin Cheng

Fang Chen

Chaoyang Liu

Ming Hu

Shijin Luo

Maili Liu

Xinjie Liu

Jiaxin Wang

Qingjia Bao

Dandan Shi

In a method for fabricating a semiconductor device, an initial stack of alternatingly sacrificial word line layers and insulating layers is formed over a substrate of the semiconductor device. A connection region, a first staircase region, and a second staircase region are patterned in the initial stack. The first staircase region is shaped in the initial stack to form a first staircase, and the second staircase region is shaped in the initial stack to form a second staircase. The first staircase is formed in a first block of the initial stack and extends between first array regions of the first block. The second staircase is formed in a second block of the initial stack and extends between second array regions of the second block. The connection region is formed in the initial stack between the first staircase and the second staircase.

Method of forming a three-dimensional NAND memory device with reduced RC delay

A low-cost modular liquid nitrogen low-temperature multi-nuclear magnetic resonance probe includes a Dewar, a pluggable coil and a front-end gain amplifier. The Dewar includes a cylindrical sandwich chamber, the center of the cylindrical sandwich chamber constitutes a room-temperature chamber, a sandwich of the cylindrical sandwich chamber is divided into a vacuum chamber and a liquid nitrogen chamber by a liquid nitrogen vessel wall, the vacuum chamber is located between the room-temperature chamber and the liquid nitrogen chamber, the pluggable coil and the front-end gain amplifier are provided in the vacuum chamber, the pluggable coil comprises a coil portion and a pluggable base, the coil portion is in pluggable connection with the pluggable base, and the pluggable coil is connected with the front-end gain amplifier. The probe realizes the transmission of radio frequency pulses and the reception of magnetic resonance signals, and is applicable to whole-body imaging of a small animal.

Low-cost modular liquid nitrogen low-temperature multi-nuclear magnetic resonance probe

The present disclosure relates to the technical field of application of bioengineering technology in microbial oil recovery, and discloses astrain and preparation thereof and a method for preparing surfactant, and use thereof. Thestrain is deposited in the China General Microbiological Culture Collection Center under the accession number CGMCC No. 9983. Theand its preparation may effectively enhance the crude oil recovery; the method for preparing the surfactant allow the lipopeptide biosurfactant to have good physical properties, effectively reduce the surface tension, and have good emulsifying performance for petroleum, various hydrocarbons and lipids.

, preparation thereof, method for preparing surfactant and use thereof

A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes:-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.

Biochemical viscosity reducer for heavy oil and preparation method thereof

A semiconductor device is provided that can include a stack formed of word line layers and insulating layers that are alternatingly stacked over a substrate. A first staircase of a first block can be formed in the stack and extend between first array regions of the first block. A second staircase of a second block can be formed in the stack and extend between second array regions of the second block. The semiconductor device further can have a connection region that is formed in the stack between the first staircase and second staircase.

Three-dimensional NAND memory device with reduced RC delay

Aspects of the disclosure provide a method for wafer warpage control. The method includes forming a filling structure in a slit opening on a wafer. Further, the method includes measuring a warpage parameter of the wafer, and determining a thermal profile to adjust a warpage parameter into a target range based on the warpage parameter. Then, the method includes performing a process having the determined thermal profile to adjust the warpage parameter into the target range.

Methods for wafer warpage control

Growing community of inventors

Wuhan, China

Zhi Zhang