Patent ID: 9623648
Date: 2017-04-18
CPC Classifications: B32B,Y10T

Claim:
1. A method of detaching a sub-substrate from a substrate, the method comprising: providing a first sub-substrate attached to a first substrate, the first substrate having a rectangular shape with first and second sides extending in a first direction and third and fourth sides extending in a second direction crossing the first direction; inserting a separating member between the first sub-substrate and the first substrate to partially detach the first sub-substrate from the first substrate; attaching a plurality of pads to the first sub-substrate, the plurality of pads being arranged in a matrix of a plurality of rows and a plurality of columns; lifting first pads among the plurality of pads, the first pads being arranged in a third direction diagonal with respect to the first and second directions; lifting second pads among the plurality of pads, after lowering the first pads, at least two of the second pads being arranged in the second direction, and at least two of the second pads being arranged in the third direction; and lifting third pads among the plurality of pads, the third pads being arranged in the second direction.