Patent ID: 9022046
Filing Date: 2015-05-05
Classification: H01L

Abstract:
1. A substrate processing method for successively transferring a plurality of substrates available at a substrate carrier from a first transport robot of a sending side section which sends the substrates to a second transport robot of a receiving side section which receives the substrates via a reverse passing part for reversing a front surface and a back surface of a substrate, said reverse passing having a first vertical position and a second vertical position, comprising the steps of: a) passing a substrate to a first holding part of said reverse passing part always at said first vertical position by said first transport robot; b) receiving a substrate from a second holding part of said reverse passing part always at said second vertical position by said second transport robot; c) rotating said first holding part and said second holding part of said reverse passing part 180 degrees about a rotary central axis along a horizontal direction to move said first holding part to said second vertical position and move said second holding part to said first vertical position; d) passing a substrate to said second holding part always at said first vertical position by said first transport robot; e) receiving a substrate from said first holding part always at said second vertical position by said second transport robot; f) rotating said first holding part and said second holding part of said reverse passing part 180 degrees about said rotary central axis to move said first holding part to said first vertical position and move said second holding part to said second vertical position; and g) repeating said step a) to step f), wherein, said first transport robot starts transport of a substrate to be passed to said second holding part of said reverse passing part in said step d) to take the substrate from the substrate carrier and move the substrate toward said reverse passing part before the reverse process of a substrate passed to said first holding part of said reverse passing part in said step a) is completed in said step c).