Abstract: A method for forming a 3D memory device is disclosed. The method includes: forming an alternating dielectric stack on a substrate; forming a plurality of channel holes penetrating the alternating dielectric stack; forming a channel structure in each channel hole; forming a channel column structure on the channel structure in each channel hole; trimming an upper portion of each channel column structure to form a channel plug; and forming a top selective gate cut between neighboring channel plugs.

Abstract: The present application provides a method for determining a stability of a welding equipment. The method includes acquiring initial welding images of the welding equipment; obtaining at least one welding spot position of each of at least one welded workpiece in each initial welding image by processing the initial welding images; determining a welding center position of each welded workpiece based on the at least one welding spot position of each welded workpiece, and obtaining welding center positions of all welded workpieces comprised in the initial welding images; and determining a stability of welding equipment based on the welding center positions of all welded workpieces. The method determines whether the welding equipment is stable by analyzing the welding images, thereby improving an accuracy of a detection of a stability of the welding equipment.

Abstract: A cable connector comprises four cables, four SATA socket connectors connected with an end of the four cables respectively, and an IPASS™ connector connected with the other end of the four cables; wherein, the SATA socket connector comprises: an insulating body, the center of the insulating body protruding forwardly to form a L-shaped tongue plate, the periphery of the insulating body further protruding forwardly to form a frame which encloses the tongue plate; and a plurality of conductive terminals, each of the conductive terminals being provided with a butting end at the tongue plate side and a soldering end extending backwardly from the butting end, and the soldering end being electrically connected with one end of the cable. The spatial positions of these four SATA socket connectors of the cable connector can be changed flexibly for adapting to changes in the practical application environment, so as to obtain more flexible and convenient use of the cable connector.