MEMS structure with a flexible membrane and improved electric actuation means
First Claim
1. A MEMS structure comprising:
- a flexible membrane including a main longitudinal axis defining a longitudinal direction;
at least one pillar under the flexible membrane;
electric lowering actuation means adapted to bend down the flexible membrane into a down forced state; and
electric raising actuation means adapted to bend up the flexible membrane into an up forced state;
wherein the membrane includes a flexible functional part that is positioned above said at least one pillar and is adapted to be bent down or up by a lever effect on said at least one pillar;
wherein the membrane includes at least one flexible lateral non-functional part that is outside said at least one pillar in a transverse direction, and extends on both sides of said at least one pillar in the longitudinal direction;
wherein an actuation area of the electric lowering actuation means or an actuation area of the electric raising actuation means extends under said at least one lateral non-functional part and is adapted to exert pulling forces on said at least one lateral non-functional part of the membrane simultaneously on both sides of said at least one pillar in the longitudinal direction;
wherein the at least one flexible lateral non-functional part is laterally offset from the at least one pillar and is partially aligned with the at least one pillar in the transverse direction; and
wherein the at least one flexible lateral non-functional part extends further in the longitudinal direction than the at least one pillar.
1 Assignment
0 Petitions
Accused Products
Abstract
The MEMS structure comprises: a flexible membrane (6), which has a main longitudinal axis (6a) defining a longitudinal direction (X), at least one pillar (3, 3′) under the flexible membrane (6), electric lowering actuation means (7) that are adapted to bend down the flexible membrane (6) into a down forced state electric raising actuation means (8) that are adapted to bend up the flexible membrane (6) into an up forced state. The electric lowering actuation means (7) or the electric raising actuation means (8) comprise an actuation area (7c or 8c), that extends under a part of the membrane (6) and that is adapted to exert pulling forces on the membrane (6) simultaneously on both sides of the said at least one pillar (3) in the longitudinal direction (X).
-
Citations
28 Claims
-
1. A MEMS structure comprising:
-
a flexible membrane including a main longitudinal axis defining a longitudinal direction; at least one pillar under the flexible membrane; electric lowering actuation means adapted to bend down the flexible membrane into a down forced state; and electric raising actuation means adapted to bend up the flexible membrane into an up forced state; wherein the membrane includes a flexible functional part that is positioned above said at least one pillar and is adapted to be bent down or up by a lever effect on said at least one pillar; wherein the membrane includes at least one flexible lateral non-functional part that is outside said at least one pillar in a transverse direction, and extends on both sides of said at least one pillar in the longitudinal direction; wherein an actuation area of the electric lowering actuation means or an actuation area of the electric raising actuation means extends under said at least one lateral non-functional part and is adapted to exert pulling forces on said at least one lateral non-functional part of the membrane simultaneously on both sides of said at least one pillar in the longitudinal direction; wherein the at least one flexible lateral non-functional part is laterally offset from the at least one pillar and is partially aligned with the at least one pillar in the transverse direction; and wherein the at least one flexible lateral non-functional part extends further in the longitudinal direction than the at least one pillar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A MEMS structure comprising:
-
a flexible membrane including a main longitudinal axis defining a longitudinal direction; at least one pillar under the flexible membrane; electric lowering actuation means adapted to bend down the flexible membrane into a down forced state; and electric raising actuation means adapted to bend up the flexible membrane into an up forced state; wherein the membrane includes a flexible functional part that is positioned above said at least one pillar and is adapted to be bent down or up by a lever effect on said at least one pillar; wherein the membrane includes at least one flexible lateral non-functional part that is outside said at least one pillar in a transverse direction, and extends on both sides of said at least one pillar in the longitudinal direction; wherein an actuation area of the electric lowering actuation means or an actuation area of the electric raising actuation means extends under said at least one lateral non-functional part and is adapted to exert pulling forces on said at least one lateral non-functional part of the membrane simultaneously on both sides of said at least one pillar in the longitudinal direction; and wherein the membrane comprises at least two lateral flexible non-functional parts that are positioned on each side of a functional part of the membrane in the transverse direction. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
Specification