Cell forming device and alignment method

An alignment method using a cell forming device, wherein

• the cell forming device comprises:
• a first platform configured to carry a first substrate, a second platform configured to carry a second substrate, a pre-alignment mechanism, a turn-over mechanism, an alignment mechanism and a cell forming mechanism,
• the first platform comprises a first suction surface and a second suction surface at opposite sides of the first platform, wherein the first suction surface is configured to suction the first substrate to be oppositely arranged to the second substrate carried by the second platform to form a cell, and the second suction surface is configured to suction another first substrate to be oppositely arranged with another second substrate carried by the second platform to form a cell,
• the turn-over mechanism is configured to turn the first platform over to turn the first substrate over,
• the alignment mechanism is configured to adjust a position of the second platform to align the turned first substrate with the second substrate, and
• the cell forming mechanism is configured to move the first substrate to form a cell with the second substrate,
• wherein the pre-alignment mechanism is configured to adjust, before the first platform is turned over, a position of the first platform to pre-align the first substrate with the second substrate;
• and
• the alignment method comprises:
• detecting preset marks on the first substrate and the second substrate;
• acquiring a first position offset of the first substrate relative to the second substrate based on a position difference between the preset mark on the first substrate and the corresponding preset mark on the second substrate;
• and
• performing a first adjustment to a position of the first substrate and/or the second substrate based on the first position offset.