System and method of testing humidity in a sealed MEMS device
First Claim
1. A method of testing humidity, comprising:
- determining a property of a device which encloses a plurality of interferometric modulators; and
determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property, wherein the property of the device includes one of the following;
i) a weight of the device, ii) color change of a desiccant enclosed in the device and iii) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly, and wherein the relative humidity value or the degree of the relative humidity inside the device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability of a component of the device.
3 Assignments
0 Petitions
Accused Products
Abstract
One embodiment provides a method of testing humidity, comprising: determining a property of a device which encloses a plurality of interferometric modulators; and determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property. In one embodiment, the property of the device includes one of the following: i) a weight of the device, ii) a color change of a desiccant enclosed in the device, iii) a resistance inside the device, iv) whether frost formed in an inside area of the device which is contacted by a cold finger device, v) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly, and vi) combination of at lest two of i)-v).
322 Citations
19 Claims
-
1. A method of testing humidity, comprising:
-
determining a property of a device which encloses a plurality of interferometric modulators; and determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property, wherein the property of the device includes one of the following;
i) a weight of the device, ii) color change of a desiccant enclosed in the device and iii) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly, and wherein the relative humidity value or the degree of the relative humidity inside the device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability of a component of the device. - View Dependent Claims (2, 3, 4, 5, 16)
-
-
6. A system for testing humidity, comprising:
-
means for determining a property of a device which encloses a plurality of interferometric modulators; and means for determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined property, wherein the property of the device includes one of the following;
i) a weight of the device, ii) a color change of a desiccant enclosed in the device and iii) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly, and wherein the relative humidity value or the degree of the relative humidity inside the device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability. - View Dependent Claims (7, 17)
-
-
8. A method of testing humidity, comprising:
-
providing a device which encloses i) a plurality of interferometric modulators and ii) a desiccant, wherein the desiccant is configured to change its color based on an amount of water vapor absorbed therein; determining a degree of a color change of the desiccant; and determining a relative humidity value or a degree of the relative humidity inside the device based at least in part upon the determined degree of the color change, wherein the relative humidity value or the degree of the relative humidity inside the device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability. - View Dependent Claims (9, 10, 11)
-
-
12. A method of manufacturing a microelectromechanical systems (MEMS) device, the method comprising:
-
providing a substrate; forming a plurality of interferometric modulators on the substrate; providing a desiccant configured to change its color based on an amount of water vapor absorbed therein; providing a backplate; and joining the substrate and the backplate so as to form a device which encloses the plurality of interferometric modulators and the desiccant, wherein the backplate includes at least one transparent portion through which the color change of the desiccant can be viewed from the outside of the device, and wherein a relative humidity value or a degree of the relative humidity inside the MEMS device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability. - View Dependent Claims (13)
-
-
14. A microelectromechanical systems (MEMS) device, comprising:
-
a substrate; a plurality of interferometric modulators formed on the substrate; a desiccant configured to change its color based on an amount of water vapor absorbed therein; and a backplate; wherein the substrate and backplate are joined to each other so as to form a device which encloses the plurality of interferometric modulators and the desiccant, wherein the backplate includes at least one transparent portion through which the color change of the desiccant can be viewed from the outside of the device, and wherein a relative humidity value or a degree of the relative humidity inside the MEMS device is determined considering at least one of i) the thickness and width of a seal and ii) adhesive permeability. - View Dependent Claims (15)
-
-
18. A method of testing humidity, comprising:
-
determining a property of a device which encloses a plurality of interferometric modulators; and determining a relative humidity value inside the device based at least in part upon the determined property, wherein the property of the device includes one of the following;
i) a weight of the device, ii) color change of a desiccant enclosed in the device and iii) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly.
-
-
19. A system for testing humidity, comprising:
-
means for determining a property of a device which encloses a plurality of interferometric modulators; and means for determining a relative humidity value inside the device based at least in part upon the determined property, wherein the property of the device includes one of the following; i) a weight of the device, ii) a color change of a desiccant enclosed in the device and iii) whether a desiccant enclosed in the device, when water vapor is provided into the device, is working properly.
-
Specification