Thin film logic circuitry
View Patent ↗A multi-layer thin-film device includes thin film memory and thin film logic. The thin film memory may be programmable resistance memory, such as phase change memory, for example. The thin film logic may be complementary logic.
1. An apparatus, comprising:
a substrate;
a first thin film layer; and
a second thin film layer, wherein one of said thin film layers includes thin film memory and the other of said thin film layers includes complementary thin film logic circuitry.
2. The apparatus of claim 1 , wherein said complementary thin film logic circuitry includes asymmetric threshold three terminal threshold switches.
3. The apparatus of claim 2 , wherein the asymmetric threshold three terminal threshold switches are three terminal ovonic threshold switches.
4. The apparatus of claim 1 , wherein the complementary thin film logic circuitry includes address decoding circuitry.
5. The apparatus of claim 1 , wherein the complementary thin film logic circuitry includes an address latch.
6. The apparatus of claim 1 , wherein the thin film memory is programmable resistance memory.
7. The apparatus of claim 1 , wherein the thin film memory is phase change memory.
8. The apparatus of claim 1 , wherein the thin film memory is chalcogenide memory.
9. The apparatus of claim 1 , wherein the substrate is a non-single crystalline material.
10. The apparatus of claim 1 , wherein the substrate is glass.
11. The apparatus of claim 1 , wherein the substrate is ceramic.
12. The apparatus of claim 1 , wherein the substrate is fiberglass.
13. The apparatus of claim 1 , wherein the first layer includes complementary thin film logic, the second layer includes phase change memory, and the substrate is a non-single-crystalline material.
14. The apparatus of claim 13 , wherein the complementary thin film logic employs asymmetric threshold three terminal ovonic threshold switches, the memory is phase change memory, and the substrate is glass.
15. The apparatus of claim 14 , wherein the complementary thin film logic includes an address decoder.
16. The apparatus of claim 15 , further comprising at least one additional layer, at least one of which additional layers includes phase change memory.
17. The apparatus of claim 1 , further comprising a microprocessor.
18. The apparatus of claim 17 , wherein the microprocessor and memory are configured for operation as a computer.
19. The apparatus of claim 18 , wherein the microprocessor and memory are configured for operation as a handheld entertainment device.
20. The apparatus of claim 17 , wherein the microprocessor and memory are configured for operation as a cellular telephone.
21. The apparatus of claim 17 , wherein the microprocessor and memory are configured for operation as a solid state drive.
22. The apparatus of claim 17 , wherein the microprocessor is a single-crystalline microprocessor formed in the substrate.