Highly moisture-sensitive electronic device element and method for fabrication
View Patent ↗A highly moisture-sensitive element and method of making such element includes an encapsulation enclosure encapsulating all of the highly moisture-sensitive electronic devices on a substrate and a sealing material positioned between the substrate and the encapsulation enclosure to form a complete seal between the substrate and the encapsulation enclosure around each highly moisture-sensitive electronic device or around groups of highly moisture-sensitive electronic devices.
1. A highly moisture-sensitive electronic device element having a plurality of highly moisture-sensitive electronic devices, comprising:
a) a substrate on which are formed the highly moisture-sensitive electronic devices;
b) a single encapsulation enclosure encapsulating all of the highly moisture-sensitive electronic devices on said substrate to protect the highly moisture-sensitive electronic devices from moisture;
c) sealing material that extends from said substrate and to said encapsulation enclosure around each highly moisture-sensitive device to form a complete seal between said substrate and said encapsulation enclosure around each highly moisture-sensitive dcvice and thereby forming a separate sealed space around each highly moisture-sensitive electronic device; and
d) water absorbing material positioned in each space and spaced from each associated highly moisture-sensitive electronic device.
2. The highly moisture-sensitive electronic device element of claim 1 , wherein the substrate includes rigid or flexible: glass, plastic, metal, ceramic, semiconductor, metal oxide, metal nitride, metal sulfide, semiconductor oxide, semiconductor nitride, semiconductor sulfide, carbon or combinations thereof.
3. The highly moisture-sensitive electronic device element of claim 1 , wherein the encapsulation enclosure includes rigid or flexible: glass, plastic, metal, ceramic, semiconductor, metal oxide, metal nitride, metal sulfide, semiconductor oxide, semiconductor nitride, semiconductor sulfide, carbon or combinations thereof.
4. The highly moisture-sensitive electronic device element of claim 1 , wherein the scaling material is organic material, inorganic material, or combinations thereof that is melted and cooled or reaction cured.
5. The highly moisture-sensitive electronic device element of claim 4 , wherein reaction curing includes reactions resulting from heat radiation, mixing of two or more components, exposure to ambient moisture, removal of ambient oxygen, or combinations thereof.
6. The highly moisture-sensitive electronic device element of claim 4 , wherein the organic material is selected from the group consisting of epoxies, polyurethanes, acrylates, silicones, polyamides, polyolefins, and polyesters, or combinations thereof.
7. The highly moisture-sensitive electronic device element of claim 4 , wherein the inorganic material is selected from the group consisting of glass, ceramic, metal, semiconductor, metal oxide, semiconductor oxide, and metal solder, or combinations thereof.
8. The highly moisture-sensitive electronic device element of claim 1 , wherein the water absorbing material is selected from the group consisting of alkaline metal oxides, alkaline earth metal oxides, sulfates, metal halides, perchiorates, molecular sieves, and metals, or combinations thereof.
9. A highly moisture-sensitive electronic device element having a plurality of highly moisture-sensitive electronic devices comprising:
a) a substrate on which is are formed the moisture-sensitive electronic devices that have been coated with a temporary moisture protection layer;
b) a single encapsulation enclosure encapsulating all of the highly moisture-sensitive electronic devices on said substrate to protect the highly moisture-sensitive electronic devices from moisture;
c) sealing material extending from said substrate and to said encapsulation enclosure around each highly moisture-sensitive device to form a complete seal between said substrate and said encapsulation enclosure around each highly moisture-sensitive device and thereby forming a separate sealed space around each highly moisture-sensitive electronic device; and
d) water absorbing material positioned in each space and spaced from each associated highly moisture-sensitive electronic device.
10. The highly moisture-sensitive electronic device element of claim 9 , wherein the substrate includes rigid or flexible: glass, plastic, metal, ceramic, semiconductor, metal oxide, metal nitride, metal sulfide, semiconductor oxide, semiconductor nitride, semiconductor sulfide, carbon or combinations thereof.
11. The highly moisture-sensitive electronic device element of claim 9 , wherein the encapsulation enclosure includes rigid or flexible: glass, plastic, metal, ceramic, semiconductor, metal oxide, metal nitride, metal sulfide, semiconductor oxide, semiconductor nitride, semiconductor sulfide, carbon or combinations thereof.
12. The highly moisture-sensitive electronic device element of claim 9 , wherein the sealing material is organic material, inorganic material, or combinations thereof that is melted and cooled or reaction cured.
13. The highly moisture-sensitive electronic device element of claim 12 , wherein reaction curing includes reactions resulting front heat, radiation, mixing of two or more components, exposure to ambient moisture, removal of ambient oxygen, or combinations thereof.
14. The highly moisture-sensitive electronic device element of claim 12 , wherein the organic material is selected from the group consisting of epoxies, polyurethanes, acrylates, silicones, polyamides, polyolefins, and polyesters, or combinations thereof.
15. The highly moisture-sensitive electronic device element of claim 12 , wherein the inorganic material is selected from the group consisting of glass, ceramic, metal, semiconductor, metal oxide, semiconductor oxide, and metal solder, or combinations thereof.
16. The highly moisture-sensitive electronic device element of claim 9 , wherein the temporary moisture protection layer is organic material, inorganic material, or a combination thereof.
17. The highly moisture-sensitive electronic device element of claim 16 , wherein the organic material is selected from the group consisting of epoxies, polyuretbanes, polyureas, acrylates, silicones, polyamides, polyimides, phenolics, polyvinyls, phenoxies, polysulfones, polyolefins, and polyesters, or combinations thereof.
18. The highly moisture-sensitive electronic device element of claim 16 , wherein the inorganic material is selected from the group consisting of glass, ceramic, metal, semiconductor, metal oxide, metal nitride, metal sulfide, semiconductor oxide, semiconductor nitride, semiconductor sulfide, and carbon or combinations thereof.
19. The highly moisture-sensitive electronic device clement of claim 9 , wherein the water absorbing material has work functions less than 4.5 eV and is capable of being oxidized in the presence of moisture.
20. The highly moisture-sensitive electronic device element of claim 9 , whercin the water absorbing material is selected from the group consisting of alkaline metal oxides, alkaline earth metal oxides, sulfates, metal halides, perchlorates, molecular sieves, and metals, or combinations thereof.