Layered assemblies
An assembly structure is formed of generally rigid layers of material bonded to generally flexible layers so as to form apparatus including hinges, bearings, and other translating and rotating subunits along with embedded functional devices.
1. A PC MEMS clamped joint comprising:
first and second members, each of said first and second members including a respective layer of substantially rigid material and having respective first and second substantially planar surface regions, said first and second surface regions being disposed facing one another in substantially parallel spaced relation to define a first spatial region therebetween, said first and second members having respective third and fourth substantially parallel surface regions, said third and fourth surface regions being disposed facing one another in substantially parallel spaced relation to define a second spatial region therebetween, said first and second members having respective first and second terminal end surface regions;
a third member disposed between said first and second members, said third member including a layer of generally flexible material, said third member being disposed within both said first and second spatial regions, said third member having a fifth surface region disposed in substantially parallel spaced relation to said first surface region and a sixth surface region disposed in substantially parallel spaced relation to said second surface region, said third member having a seventh surface region disposed in close proximity to said third surface region and an eighth surface region disposed in close proximity to said fourth surface region, an adhesive material disposed between said first and fifth surface regions and between said second and sixth surface regions, wherein said third member extends outwardly of said first and second terminal end surface regions, and wherein a distance between said first surface region and said fifth surface region is substantially larger than a distance between said third surface region and said seventh surface region.
2. A PC mems clamped joint as defined in claim 1 further comprising an adhesive material disposed between said third surface region and said seventh surface region.
3. A PC mems clamped joint as defined in claim 1 wherein a distance between said third surface region and said seventh surface region is substantially equal to zero.
4. A PC mems clamped joint as defined in claim 1 wherein a further surface region disposed between said first surface region and said third surface region includes a dihedral angle.
5. A PC mems clamped joint as defined in claim 4 wherein said dihedral angle comprises an angle substantially equal to 90°.
6. A PC mems clamped joint as defined in claim 4 wherein said dihedral angle comprises an oblique angle.
7. A PC mems clamped joint as defined in claim 4 wherein said first member comprises a deformed region disposed between said first surface region and said third surface region.
8. A PC mems clamped joint as defined in claim 1 wherein said third member includes an aperture disposed between said third and fourth surface regions.
9. A PC mems clamped joint as defined in claim 8 wherein an adhesive material is disposed within said aperture, said adhesive material being disposed in contact with said third and fourth surface regions.
10. A PC mems clamped joint as defined in claim 1 wherein said third member includes an aperture disposed through said third member in a region between said first surface region and said third surface region.
11. A PC mems clamped joint as defined in claim 10 wherein an adhesive material is disposed within said aperture, said adhesive material being disposed in contact with respective surface regions of said first and second members.
12. A PC mems clamped joint as defined in claim 1 wherein said layer of generally flexible material comprises a plurality of sheets of generally flexible material.
13. A PC mems joint as defined in claim 12 wherein respective portions of said plurality of sheets of generally flexible material are adapted to slide against one another in shear.
14. A PC mems clamped joint as defined in claim 12 wherein said layer of generally flexible material further comprises an adhesive material disposed between at least a first sheet and a second sheet of said plurality of sheets of generally flexible material.
15. A PC mems clamped joint as defined in claim 1 wherein said first member further includes a further layer of substantially rigid material, said third surface region being a surface region of said further layer of substantially rigid material.
16. A PC mems clamped joint as defined in claim 15 wherein said first member includes an adhesive material disposed between said first layer of substantially rigid material and said further layer of substantially rigid material.
17. A PC mems clamped joint as defined in claim 1 wherein said first terminal end surface region is disposed substantially normal to a plane of said third surface region.
18. A PC mems clamped joint as defined in claim 1 wherein said second terminal end surface region is disposed substantially normal to a plane of said fourth surface region.