Patent ID: 11970642
Assignee: OPROCESSOR INC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  G | IPC B  C  G

Claim 0:
1. A method for bonding objects using thermoset polyimide layers:
preparing a first object;
forming a first thermoset polyimide layer by applying a first polyamic acid solution to a surface of the first object, wherein the first polyamic acid solution is prepared to be a first thermoset polyimide;
curing the first thermoset polyimide layer;
forming active functional groups including dangling bonds on a surface of the first thermoset polyimide layer by performing a planarization process including grinding and/or polishing;
forming and curing a second thermoset polyimide layer to a surface of a second object,
applying a second polyamic acid solution on at least one of a surface of the planarized first thermoset polyimide layer and a surface of the second thermoset polyimide layer;
disposing the second object on the first object such that the planarized first thermoset polyimide layer contacts the second thermoset polyimide layer and the second polyamic acid solution; and
bonding the second thermoset polyimide layer to the planarized first thermoset polyimide layer by applying pressure to the second object and the first object, wherein the active functional groups have an adhesive property with the second thermoset polyimide layer.