Patent ID: 11906798
Assignee: POET TECHNOLOGIES, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising
forming an assembly,
wherein the assembly comprises a first substrate in contact with a second substrate,
wherein the first substrate comprises a first wall forming a close-loop boundary defining a volume between the first and second substrates,
wherein the first wall comprises portions having different heights configured so that the first substrate contacting the second substrate with at least an opening,
wherein the second substrate comprises a boundary line or a second wall,
wherein the boundary line or the second wall is configured to contact the first wall;

placing the assembly in a chamber;
conditioning an ambient in the chamber,
wherein conditioning the ambient comprises at least one of
evacuating gases in the chamber, or
flowing an inactive gas or an inert gas to the chamber, or
flowing an inactive gas or an inert gas to the chamber having an exhaust, or
evacuating gases in the chamber, followed by flowing an inactive gas or an inert gas to the chamber, or
performing multiple cycles of evacuating gases in the chamber and flowing an inactive gas or an inert gas to the chamber;

supplying a heat source to heat the wall to form a hermetic seal for the volume,
wherein supplying the heat source to heat the wall comprises at least one of
flowing a hot inactive gas or a hot inert gas to the chamber, or
heating ambient in the chamber, or
supplying an IR heating directed toward the assembly, or
heating the chamber, or
heating a support on which the assembly is located.