Patent ID: 9048093
Filing Date: 2015-06-02
Classification: H01L

Abstract:
1. A method for manufacturing a silicon carbide semiconductor device, comprising the steps of: preparing at least one single crystal substrate made of silicon carbide and a first support substrate having a size greater than a size of each of said at least one single crystal substrate; bonding each of said at least one single crystal substrate onto said first support substrate; performing process on said at least one single crystal substrate bonded to said first support substrate; removing said first support substrate after the step of performing process on said at least one single crystal substrate; subjecting said at least one single crystal substrate to heat treatment after the step of removing said first support substrate; bonding each of said at least one single crystal substrate onto a second support substrate having a size greater than the size of each of said at least one single crystal substrate after the step of subjecting said at least one single crystal substrate to heat treatment; performing process on said at least one single crystal substrate bonded to said second support substrate; and removing said second support substrate.