Patent ID: 9741963
Date: 2017-08-22
CPC Classifications: B23K,B32B,C03B,C03C,H01L

Claim:
1. A sealed device comprising: an inorganic film formed over a surface of a first substrate, the inorganic film comprising: a second substrate in contact with the inorganic film; and a weld region comprising a bond formed between the first and second substrates and extending from a first depth in the first substrate to a second depth in the second substrate; wherein the inorganic film comprises at least one inorganic film element and wherein one or both of the first and second substrates comprises at least one inorganic substrate element; and wherein a first inorganic film element concentration of the first or second substrate in the weld region is higher than a second inorganic film element concentration of the first or second substrate outside the weld region.