Yangtze Memory Technologies Co., Ltd.

Huazhong University of Science and Technology

Huawei Device Co., Ltd.

Convergence Technology Co., Ltd.

Kai Jin Huang

Jin Lyu

Gang Liu

Shaoqun Zeng

Ning Li

Qinglei Hu

Xiao Chen

Jianguo Zhang

Mao Wang

Zhengding Zheng

Jianfeng Xu

Junfeng Xiao

Mengting Li

Disclosed is a selective field-assisted machining system. The system includes a micron-level high-speed identification module, an in-situ laser assisted module, an ultrasonic vibration module, an energy field loading high-speed control module, and a diamond tool. The micron-level high-speed identification module is used to quickly identify the type of a material substrate of a workpiece to be processed, process the identification information into a corresponding control signal, and send same to the energy field loading high-speed control module to implement selective processing of the workpiece to be processed, i.e. to process brittle particles using in-situ laser assisted machining and to process a soft metal substrate using ultrasonic vibration processing. In the present invention, ultra-precision cutting of brittle particles and a soft metal substrate can be completed at the same time in a single processing process.

Selective field-assisted machining system

A miniature imaging lens for close-range imaging includes: a first lens group, an aperture, and a second lens group sequentially arranged in a direction from the object side to the image side of an optical axis; the first lens group and the second lens group have positive focal power, an object-side clear aperture of the first lens group is larger than an image-side clear aperture of the first lens group, and an object-side clear aperture of the second lens group is less than an image-side clear aperture of the second lens group, and specific process parameters are provided. A sandwich structure lens configuration composed of a first lens group, an aperture and a second lens group can obtain a high close-range imaging effect under the condition of miniaturization, and can effectively reduce aberrations of close-range imaging, especially distortion and chromatic aberration.

Miniature imaging lens for close-range imaging

A three-dimensional (3D) memory device is provided and includes a substrate, an alternating stack and a channel structure. The alternating stack is disposed on the substrate, and the alternating stack includes a plurality of conductive layers and a plurality of air gap layers alternately stacked. The channel structure is disposed on the substrate and extends vertically through the conductive layers and the air gap layers. The alternating stack further includes a plurality of etching stop blocks between the air gap layers and the channel structure.

Three-dimensional memory device and method for manufacturing the same

An operation method for a 3D NAND flash having a plurality of bit lines, wherein the plurality of bit lines comprises a plurality of layers, the operation method includes defining a plurality of upper layers of the plurality of bit lines of the 3D NAND flash as a plurality of upper select gates and a top layer of the plurality of bit lines of the 3D NAND flash as a top dummy layer; and applying a first voltage on a first top dummy layer of a select bit line of the plurality of bit lines to turn on the first top dummy layer of the select bit line of the plurality of bit lines when programming.

Operation method for 3D NAND flash and 3D NAND flash

Embodiments of the present invention provide a method and an apparatus for unlocking an operating system, which are used to unlock the system with personal information data when a user forgets a password, thereby increasing a probability of successful unlocking of the user. The method of the embodiment of the present invention includes: when a user fails in unlocking the system via an unlock pattern in an unlocking interface for pattern unlocking, displaying an unlocking interface for personal information authentication, and matching personal information input by the user with personal information pre-stored in a local database.

Method and apparatus for unlocking operating system

Growing community of inventors

Wuhan, China

Kai Jin Huang