Modifying the electro-mechanical behavior of devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-023/18
H01L-023/16
출원번호
US-0839307
(2004-05-04)
발명자
/ 주소
Kothari,Manish
Chui,Clarence
Palmateer,Lauren
출원인 / 주소
IDC, LLC
대리인 / 주소
Knobbe Martens Olson &
인용정보
피인용 횟수 :
62인용 특허 :
223
초록▼
A MEMS device is packaged with a control material that is included in the package to affect an operation of a moveable element of the device. The control material may affect operational characteristics including actuation and release voltages and currents, mechanical affects including damping and st
A MEMS device is packaged with a control material that is included in the package to affect an operation of a moveable element of the device. The control material may affect operational characteristics including actuation and release voltages and currents, mechanical affects including damping and stiffness, lifetime of the device, optical properties, thermal affects and corrosion. The control material may be inserted into the package as part of any of several structural components of the package or the MEMS device.
대표청구항▼
What is claimed is: 1. A display device, comprising: a first surface; a second surface offset from the first surface to form a package; at least one interferometric modulator within the package, the interferometric modulator comprising a movable surface configured to contact another surface; and an
What is claimed is: 1. A display device, comprising: a first surface; a second surface offset from the first surface to form a package; at least one interferometric modulator within the package, the interferometric modulator comprising a movable surface configured to contact another surface; and an environmental control material inside the package, wherein the amount of the environmental control material is selected to affect an operation of the interferometric modulator. 2. The display device of claim 1, wherein the first surface comprises a substrate. 3. The display device of claim 2, wherein the substrate is selected from the group consisting of: glass, plastic, metal, silicon and ceramic. 4. The display device of claim 1, wherein the second surface comprises a back plate. 5. The display device of claim 4, wherein the back plate comprises a material selected from the group consisting of glass, plastic, metal, metal foil, silicon, and ceramic. 6. The display device of claim 1, further comprising a joining material to join the first surface and the second surface. 7. The display device of claim 6, wherein the joining material comprises a material selected from the group consisting of: epoxy-based adhesives, o-rings, PIBs, poly-urethane, adhesives with zeolite incorporated within, thin film metal welds, liquid spin-on glass, solder, grown polymers, and grown plastics. 8. The display device of claim 1, wherein the environmental control material further comprises a material selected from the group consisting of: zeolites, molecular sieves, desiccants, surface adsorbents, bulk adsorbents, chemical reactants, and physical obstructers. 9. The display device of claim 8, wherein the molecular sieves are formed by a process selected from the group consisting of: molecular sieves in deposited thin films, molecular sieves in spun on polymers, sprayed on molecular sieves, and regenerated molecular sieves prepared in advance. 10. The display device of claim 1, wherein the environmental control material comprises an environmental control material embedded into the interferometric modulator. 11. The display device of claim 1, wherein the environmental control material comprises an environmental control material embedded into a component of the package. 12. The display device of claim 1, wherein the operation of the interferometric modulator comprises movement of the movable surface. 13. The display device of claim 1, wherein the operation of the interferometric modulator comprises contact between the movable surface and the another surface. 14. The display device of claim 1, wherein the environmental control material is selected to affect the actuation voltage of the interferometric modulator. 15. The display device of claim 1, wherein the environmental control material is selected to affect the release voltage of the interferometric modulator. 16. The display device of claim 1, wherein the environmental control material is selected to affect the partial pressure of gases inside the package. 17. The display device of claim 1, wherein the environmental control material is selected to affect the response time of the interferometric modulator. 18. The display device of claim 1, wherein the environmental control material is selected to affect the lifetime of the interferometric modulator. 19. The display device of claim 1, wherein the environmental control material is selected to affect the rate of corrosion of the interferometric modulator. 20. A method of packaging a display device, comprising: forming at least one interferometric modulator on a substrate, the interferormetric modulator comprising a movable surface configured to contact another surface; enclosing the interferometric modulator and the substrate in a package; and including an environmental control material in the package, wherein the amount of environmental control material is selected based upon an effect on an operation of the interferometric modulator caused by the material. 21. The method of claim 20, wherein enclosing the interferometric modulator and the substrate in a package comprises enclosing the interferometric modulator and the substrate in a device package, and wherein including the environmental control material comprises including the environmental control material in the device package. 22. The method of claim 20, wherein enclosing the interferometric modulator and the substrate in a package further comprises enclosing the interferometric modulator and the substrate in a module package, and wherein including the environmental control material comprises including the environmental control material in the module package. 23. The method of claim 20, wherein forming at least one interferometric modulator on the substrate comprises forming the interferometric modulator from thin films, and wherein including the environmental control material comprises including the environmental control material embedded in one of the thin films. 24. The method of claim 20, wherein including the environmental control material comprises embedding the environmental control material in the substrate. 25. The method of claim 20, wherein enclosing the interferometric modulator and the substrate in a package comprises joining the substrate and a back plate with a joining material. 26. The method of claim 20, wherein including the environmental control material comprises adding a powder inside the package. 27. The method of claim 20, wherein including the environmental control material comprises shaping the environmental control material into shapes and applying the shapes inside the package. 28. The method of claim 20, wherein including the environmental control material comprises applying the environmental control material in a spray. 29. The method of claim 20, wherein including the environmental control material comprises applying the environmental control material in a dip coat. 30. The method of claim 20, wherein including the environmental control material comprises applying the environmental control material as a screen print. 31. The method of claim 20, wherein including the environmental control material comprises dispensing the environmental control material in liquid form.
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