Patent ID: 11930710
Assignee: SOITEC
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of manufacturing a hybrid structure comprising an effective layer having an effective thickness on a support substrate having a support thickness, wherein a coefficient of thermal expansion of the support substrate is less than a coefficient of thermal expansion of the effective layer, the method comprising:
providing a bonded structure comprising a donor substrate on the support substrate, a bonding interface between the donor substrate and the support substrate, and at least one non-bonded area at the bonding interface;
thinning the donor substrate to form a thinned layer having an intermediate thickness on the support substrate, the thinned layer and the support substrate collectively forming a thinned structure;
applying a heat treatment to the thinned structure at an annealing temperature;
after applying the heat treatment, thinning the thinned layer to form the effective layer with the effective thickness; and
before thinning the donor substrate to form a thinned layer with the effective thickness, determining a range of intermediate thicknesses, the range being defined by a threshold thickness and a maximum thickness,
wherein input parameters of the first sensitivity model comprise the support thickness, the coefficient of thermal expansion of the support substrate, a coefficient of thermal expansion of the donor substrate, the annealing temperature, and a maximum size of the at least one non-bonded area at the bonding interface,, wherein the one or more non-bonded areas comprise a radius within a range of from 1 micron to 1000 microns.