WO2011111539A1 - 物理量センサ - Google Patents
物理量センサ Download PDFInfo
- Publication number
- WO2011111539A1 WO2011111539A1 PCT/JP2011/054113 JP2011054113W WO2011111539A1 WO 2011111539 A1 WO2011111539 A1 WO 2011111539A1 JP 2011054113 W JP2011054113 W JP 2011054113W WO 2011111539 A1 WO2011111539 A1 WO 2011111539A1
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- WO
- WIPO (PCT)
- Prior art keywords
- protrusion
- weight portion
- physical quantity
- quantity sensor
- height
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0035—Constitution or structural means for controlling the movement of the flexible or deformable elements
- B81B3/0051—For defining the movement, i.e. structures that guide or limit the movement of an element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0228—Inertial sensors
- B81B2201/0235—Accelerometers
Definitions
- the present invention relates to a physical quantity sensor that detects a displacement amount of a weight portion formed by cutting out from a silicon substrate, and thereby enables measurement of a physical quantity such as acceleration acting from the outside.
- the physical quantity sensor includes a weight portion that is supported so as to be displaceable in the height direction by etching a silicon substrate.
- a weight portion (mass portion) that is displaced in the height direction has a structure that is swingably supported by a spring portion.
- a plurality of protruding stopper portions are provided on the surface of the facing portion that faces the weight portion in order to improve sticking resistance.
- the height of each stopper is aligned in the plane direction.
- Patent Document 4 discloses a structure of a physical quantity sensor in which high and low protrusions are provided on a comb-shaped fixed electrode or movable electrode.
- the low protrusion is provided for protection when the high protrusion is destroyed. Therefore, when it comes into contact with the low protrusion, it is assumed that the high protrusion is destroyed. That is, the movable electrode and the fixed electrode are in contact with each other via either a high protrusion or a low protrusion. Therefore, there is a problem that the sensor sensitivity varies depending on whether the movable electrode and the fixed electrode are in contact with each other through a high protrusion or the case in which the movable electrode and the fixed electrode are in contact with each other through a low protrusion. Further, when the high protrusion is destroyed, there is a problem that sensor sensitivity is likely to vary and noise, and the sensor sensitivity becomes unstable.
- the protrusion is provided between the comb-like movable electrode and the fixed electrode, and the protrusion is not arranged with respect to the weight. Therefore, it is impossible to improve the impact resistance and the sticking resistance with respect to the facing portion of the weight portion.
- an object of the present invention is to provide a physical quantity sensor capable of improving the impact resistance and the sticking resistance with respect to the opposing portion of the weight portion.
- the physical quantity sensor in the present invention is A spring part, a weight part connected to the spring part and supported so as to be displaceable in the height direction, and a counter part facing the weight part in the height direction;
- a plurality of protrusions having different heights are disposed between the facing portion and the weight portion, and when the weight portion is displaced in the height direction, the space between the weight portion and the facing portion is It is possible to make contact in a stepwise manner via a protrusion, and the weight portion and the facing portion can be separated in a stepwise manner.
- a plurality of protrusions having different heights are interposed between the weight portion and the facing portion so that the weight portion and the facing portion can be contacted in a stepwise manner.
- the spring constant regarding a restoring force can be raised in steps. Therefore, impact resistance can be improved.
- the weight portion and the facing portion can be separated from each protrusion stepwise. Thereby, peeling force can be enlarged and sticking resistance can be improved effectively.
- this invention has a 1st projection part and a 2nd projection part whose height is lower than the said 1st projection part,
- the said 1st projection is in the middle with respect to one direction of the plane of the said weight part.
- the second protrusion is disposed on both sides of the first protrusion.
- the second protrusion is disposed in the middle, and the first protrusion is spaced on both sides of the first protrusion. It is preferable that the protrusions are arranged.
- this invention has a 1st protrusion part and a 2nd protrusion part whose height is lower than the said 1st protrusion part, and the said 1st protrusion is the both sides with respect to one direction of the plane of the said weight part. It is preferable that the portion and the second protrusion are respectively disposed.
- the protruding portion is formed on a surface of the facing surface that faces the weight portion.
- a fixed electrode layer is formed in a region where the protrusion is not formed on the surface of the facing portion, and the surface of the fixed electrode layer is formed with the lowest height. Preferably, it is formed lower than the surface of the part.
- the present invention it is possible to configure a physical quantity sensor capable of detecting a physical quantity change based on a capacitance changing between the weight portion functioning as the movable electrode and the fixed electrode layer. Further, in the present invention, even if the weight portion is bent and deformed in the direction of the facing portion, the minimum distance between the fixed electrode layer and the weight portion can be kept constant, so that an electrical short between the fixed electrode layer and the weight portion, It is possible to suppress the problem of current leakage due to approach.
- the support portion is provided with a pair of legs that are displaced in a direction opposite to the displacement direction of the weight portion when the support portion rotates and the weight portion is displaced in the height direction, Between each leg part and the said opposing part, when the said leg part is displaced to a height direction, between a pair of leg part and the said opposing part can be contacted in steps, and a pair of leg part and said opposing part It is preferable that a plurality of protrusions having different heights that can be separated from each other in stages are arranged.
- a projection part with a high height is arranged between the one leg part and the opposing part, and a projection part with a low height is arranged between the other leg part and the opposing part. Is preferred. Thereby, the impact resistance with respect to the opposing part of a leg part and sticking resistance can be improved effectively.
- the spring constant related to the restoring force can be increased step by step, so that the impact resistance can be improved, and the peeling force can be increased to effectively improve the sticking resistance. Can do.
- FIG. 4 is a plan view showing a more specific structure of a physical quantity sensor to which the embodiment shown in FIGS. 1 to 3 can be applied;
- the side view which shows the displacement of the leg part of the physical quantity sensor shown in FIG. FIG. 4 is a plan view showing a more specific structure of a physical quantity sensor to which the embodiment shown in FIGS. 1 to 3 can be applied;
- the top view which shows the structure of the more concrete physical quantity sensor which can apply embodiment shown in FIG. 1 thru
- FIG. 1 is a schematic diagram showing a longitudinal section of a physical quantity sensor according to the first embodiment.
- FIG. 2 is a schematic diagram showing a longitudinal section of the physical quantity sensor in the second embodiment.
- FIG. 3 is a schematic diagram showing a longitudinal section of a physical quantity sensor according to the third embodiment.
- FIGS. 1A to 1C and FIGS. 3A to 3C show a state in which a physical quantity acts on the weight portion and is displaced.
- the weight portion 20 is connected to the spring portion 21 and supported so as to be displaceable in the height direction (Z). Both the weight part 20 and the spring part 21 are made of silicon.
- the spring portion 21 is formed in a torsion spring shape.
- an opposing portion 22 is provided below the weight portion 20 with a gap in the height direction (Z).
- a plurality of projecting portions 23, 24, 24 projecting upward are formed on the surface 22a of the facing portion 22.
- the protrusion 23 is referred to as a first protrusion 23
- the protrusion 24 is referred to as a second protrusion 24.
- the first protrusion 23 is higher than the second protrusion 24.
- the height is determined by the surface height of each protrusion.
- the height of the surface 23 a of the first protrusion 23 is higher than the height of the surface 24 a of the second protrusion 24.
- Each surface 23a, 24a is a stopper surface for the weight portion 20.
- the “surface” refers to the surface (the most protruding surface) at the highest position in each of the protrusions 23 and 24.
- the first protrusion 23 is disposed in the middle of the plane of the weight portion 20 in the X direction. Further, the second protrusions 24 and 24 are respectively arranged on both sides of the first protrusion 23 with a space therebetween. Thus, the 1st projection part 23 and the 2nd projection part 24 are arranged in parallel at intervals in the X direction.
- a fixed electrode layer 26 is formed on the surface 22a of the facing portion 22 in a recessed portion 25 that is not a region where the projections 23 and 24 are formed.
- the fixed electrode layer 26 is formed by an existing method such as sputtering. Further, the surface 22a of the facing portion 22 is formed in an uneven shape by etching or the like.
- the surface 26a of the fixed electrode layer 26 is formed at a position lower than the surface 24a of the second protrusion 24 having the lowest height among the protrusions.
- FIG. 1A shows a stationary state of the weight portion 20. Due to the physical quantity change, the weight portion 20 is displaced downward as shown in FIG. At this time, if the physical quantity changes more than a predetermined amount, the surface of the weight portion 20 (the surface facing the facing portion 22; the lower surface) 20a comes into contact with the surface 23a of the first protrusion 23 having a high height located in the middle.
- the distance in the height direction (Z) between the weight portion 20 and the first protrusion 23 is d1, and as shown in FIG. 1 (b). Furthermore, if the spring constant until the weight portion 20 abuts against the surface 23a of the first protrusion 23 is k1, the restoring force at the stage where the weight portion 20 abuts against the first protrusion 23 is k1 ⁇ d1.
- the weight portion 20 When the physical quantity change more than a predetermined level further acts from the state shown in FIG. 1B, the weight portion 20 maintains the contact state with the first projection portion 23 while the position of the first projection portion 23 is maintained. As a fulcrum, both sides in the X direction of the weight portion 20 are bent downward and deformed so that the surface 20a of the weight portion 20 is located on both sides of the first protrusion 23 and is higher than the first protrusion 23. It contacts the surface 24a of the low second protrusion 24 (FIG. 1C). In this way, the weight portion 20 is formed to have a rigidity that allows bending and deformation in the state of FIG.
- the distance in the height direction (Z) from the surface 23a of the first projection 23 to the surface 24a of the second projection 24 is d2.
- the weight 20 contacts the surface 24a of the second protrusion 24 as shown in FIG. 1C from the state where the weight 20 contacts the surface 23a of the first protrusion 23 as shown in FIG.
- a spring constant k2 based on the bending deformation of the weight portion 20 is added. Therefore, as shown in FIG. 1C, the restoring force at the stage where the weight portion 20 comes into contact with the surface 24a of the second protrusion 24 is k1 (d1 + d2) + k2 ⁇ d2.
- the spring constant k2 is very large with respect to the spring constant k1.
- the spring constant related to the restoring force can be increased step by step. Therefore, the impact resistance can be improved by bringing the weight portion 20 into contact with the protrusion portions 23 and 24 having different heights in a stepwise manner as compared with the case where the weight portion 20 is brought into contact with only the protrusion portion having a uniform height. Can do. Further, when the weight portion 20 returns to the original stationary state in FIG. 1A from the state in which the weight portion 20 abuts on the surface 23a of the first protrusion 23 and the surface 24a of the second protrusion 24 in FIG.
- the weight portion 20 is first separated from the surface 24a of the second protrusion 24, returns to the deformation, becomes flat, and comes into contact with only the surface 23a of the first protrusion 23 (FIG. 1 ( b)). And the weight part 20 leaves
- a second projection 24 having a low height is provided in the middle of the plane of the weight portion 20 in the X direction, and the second projection 24 is spaced apart on both sides.
- the first protrusion 23 having a height higher than that of the protrusion 24 can be disposed.
- FIG. 2 after the weight portion 20 abuts on the surface 23 a of the first protrusion 23 located at both ends, the center of the weight portion 20 is bent downward with the position of each first protrusion 23 a as a fulcrum. A state is shown in which it is deformed and is in contact with the surface 24a of the second protrusion 24.
- each projection part 23 and 24 can also be provided in the weight part 20 side.
- the protrusions can be provided on each of the surface 20 a of the weight portion 20 and the surface 22 a of the facing portion 22.
- the first protrusion 23 can be formed on the surface 22 a of the facing part 22, and the second protrusion 24 can be formed on the surface of the weight part 20.
- the manufacturing process is facilitated by forming the protrusions 23 and 24 together with the fixed electrode layer 26 on the surface 22 a of the facing portion 22.
- the protrusions 23 and 24 are preferably formed on the surface 22 a of the facing portion 22.
- the surface 26 a of the fixed electrode layer 26 is formed at a position lower than the surface 24 a of the second protrusion 24 having the lowest height among the protrusions 23 and 24. Therefore, even when the weight portion 20 is in contact with the surface 24a of the second protrusion 24 as shown in FIG. 1C, it is possible to prevent the weight portion 20 and the fixed electrode layer 26 from contacting each other.
- the minimum distance between the fixed electrode layer 26 and the weight portion 20 can be kept constant. Therefore, it is possible to suppress an electrical short circuit between the fixed electrode layer 26 and the weight part 20 and a current leakage problem due to approach.
- the first protrusion 23 and the second protrusion 24 are arranged on the surface 22 a of the facing portion 22 so as to be separated from each other in the X direction on the plane of the weight portion 20.
- the first protrusion 23 is closer to the X2 side than the middle of the weight part 20, and the second protrusion 24 is closer to the X1 side than the middle of the weight part 20, respectively. Has been placed.
- the weight portion 20 is displaced downward as shown in FIG. At this time, if there is a change in the physical quantity more than a predetermined amount, the surface 20a of the weight portion 20 (the surface facing the facing portion 22; the lower surface) 20a comes into contact with the surface 23a of the first protrusion 23 having a high height disposed on the X2 side. .
- the weight portion 20 supports the position of the first protrusion 23 while maintaining the contact state with the first protrusion 23.
- the entire weight portion 20 is linearly inclined downward and the surface 20a of the weight portion 20 comes into contact with the surface 24a of the second protrusion 24 having a low height arranged on the X1 side (FIG. 3C )).
- the weight portion 20 moves away from the surface 24a of the second protrusion 24 from the state of FIG. In the state of (b), the weight part 20 becomes parallel, and the weight part 20 is away from the surface 23a of the first protrusion 23 and is in the state of FIG. 3 (a).
- the weight portion 20 and the facing portion 22 can be brought into contact in a stepwise manner through a plurality of protrusions 23 and 24 having different heights.
- the spring constant regarding a restoring force can be raised in steps. Therefore, impact resistance can be improved.
- the weight portion 20 and the facing portion 22 can be separated from the protrusions 23 and 24 step by step. Thereby, peeling force can be enlarged and sticking resistance can be improved effectively.
- the weight portion 2 is an outer frame portion surrounded by rectangular long sides 1 a and 1 b and short sides 1 c and 1 d.
- two support coupling bodies 3 and 4 are provided inside the weight portion 2.
- the planar shape of the support coupling bodies 3 and 4 is formed in a crank shape.
- the first support connecting body 3 is formed integrally with a first connecting arm 3a extending forward (X1) and a leg 3b extending rearward (X2).
- the second support connection body 4 includes a first connection arm 4 a that extends rearward (X2) and a leg portion 4 b that extends forward (X1).
- a first anchor portion 5, a second anchor portion 6 and a third anchor portion 7 are arranged in parallel inside the weight portion 2 with an interval in the Y1-Y2 direction. .
- the first connection arm 3 a of the first support connection body 3 and the weight portion 2 are rotatably connected at the spring portion 11 a, and the first connection arm 4 a of the second support connection body 4. And the weight portion 2 are rotatably connected at the spring portion 11b.
- the 1st support coupling body 3 is connected rotatably by spring part 12a, 12b.
- the 2nd support coupling body 4 is rotatably connected in the spring parts 13a and 13b.
- the 2nd connection arm 14 and the 2nd connection arm 15 are provided.
- the second connecting arms 14 and 15 are formed inside the weight part 2.
- the second connecting arm 14 and the weight portion 2 are rotatably connected at the spring portion 16a.
- the 2nd connection arm 15 and the weight part 2 are rotatably connected in the spring part 16b.
- the 2nd connection arm 14 and the anchor part 6 are rotatably connected in the spring part 17a.
- the 2nd connection arm 15 and the anchor part 7 are rotatably connected in the spring part 17b.
- first connecting arm 3a and the second connecting arm 14 are connected via a spring portion 18a.
- first connecting arm 4a and the second connecting arm 15 are connected via a spring portion 18b.
- a plurality of protrusions 30 to 39 are provided on the facing portion facing the weight portion 2.
- the protrusions 30, 34, and 38 are arranged on the X2 side and spaced apart in the Y1-Y2 direction.
- the protrusions 31, 35, and 39 are arranged on the X1 side with an interval in the Y1-Y2 direction.
- the protrusions 32, 33, 36, and 37 are located inside the protrusions 30, 31, 34, 35, 38, and 39.
- the middle protrusion 34 is the first protrusion 23 having a high height shown in FIG.
- the protrusions 30 and 38 on both sides are the second protrusions 24 having a low height shown in FIG.
- the middle projection 35 of the plurality of projections 31, 35, 39 arranged in parallel in the Y1-Y2 direction on the X1 side is the first projection 23 having a high height shown in FIG.
- the projecting portions 31 and 39 on both sides are the second projecting portions 24 having a low height shown in FIG.
- the remaining protrusions 32, 33, 36, and 37 constitute a second protrusion 24 having a low height.
- the protrusion 34 is the first protrusion 23 having a high height shown in FIG. 3, and the other protrusions 30, 31, 32, 33, 35, 36, 37, 38, and 39 are all low in height.
- Two protrusions 24 may be provided. Thereby, it can be made to contact
- protrusions 40 and 41 are also formed at positions facing the leg portions 3 b and 4 b at the facing portion.
- FIG. 5A shows a stationary state, and when the weight portion 2 is displaced in a direction away from the facing portion 42 by the action of a physical quantity change, the pair of leg portions 3b and 4b are displaced in a direction approaching the facing portion 42.
- the height of the protrusion 40 facing the leg 3b is high, and the height of the protrusion 41 facing the leg 4b is low.
- the leg portion 3 b first comes into contact with the protruding portion 40 by the displacement of the leg portions 3 b and 4 b in the height direction. Subsequently, when a stronger physical quantity change is applied, the leg 3b is bent and deformed, and the other leg 4b comes into contact with the projection 41 having a low height.
- the protrusions 30, 31, 38, 39 shown in FIG. 4 are not formed.
- a line extending in the Y1-Y2 direction at the midpoint between the long side 1a and the long side 1b of the physical quantity sensor 1 is defined as the horizontal center line Ox, as shown in FIG. 6, a weight portion passing through the horizontal center line Ox.
- Protrusions 45, 46 are provided on both sides of 2.
- the protrusions 34 and 35 are the high protrusions 23 shown in FIG. 1, and the remaining protrusions 32, 33, 36, 37, 45, and 46 are shown in FIG. 1.
- the protrusion 24 has a low height.
- the protrusion 34 is the protrusion 23 having a high height shown in FIG. 1, and the other protrusions 32, 33, 35, 36, 37, 45, and 46 are the protrusion 24 having a low height shown in FIG. Is configured.
- the combination of the heights of the protrusions described above can be arbitrarily determined. Further, the protrusions 40 and 41 with respect to the leg portions 3b and 4b may have different heights, or may have the same height. Also, a plurality of protrusions having different heights can be disposed on the leg 3b, and a plurality of protrusions having different heights can also be disposed on the leg 4b.
- FIG. 7 is a plan view showing another physical quantity sensor using the embodiment shown in FIGS. 1 to 3.
- the anchor portion 61 is provided on the Y1 side of the center position O, and the anchor portion 62 is provided on the Y2 side of the center position O.
- a first support portion 64 extends from the anchor portion 61 toward the X ⁇ b> 1 through the spring portion 63. Further, a second support portion 66 is formed to extend from the anchor portion 61 via the spring portion 65 toward X2.
- a third support portion 68 is formed to extend from the anchor portion 62 via the spring portion 67 toward X1.
- the fourth support portion 70 is formed to extend from the anchor portion 62 toward the X ⁇ b> 2 via the spring portion 69.
- an inner weight portion 51 a is provided on the inner side surrounded by the support portions 64, 66, 68, and 70.
- the tip positions of the support portions 64, 66, 68, and 70 are connected to the side portions of the inner weight portion 51a via spring portions 52 to 55.
- an outer weight portion 51b is formed integrally with the inner weight portion 51a at positions outside the support portions 64, 66, 68, and 70.
- the inner weight portion 51a and the outer weight portion 51b constitute a weight portion 51.
- a plurality of projecting portions 71 to 75 are provided at the facing portion facing the weight portion 51.
- the projection 71 located in the middle of the plane of the weight 51 in the X direction is the projection with the highest height
- the projections 74 and 75 located on both sides are the projections with the lowest height.
- the protrusion 72 positioned between the protrusion 71 and the protrusion 74 and the protrusion 73 positioned between the protrusion 71 and the protrusion 75 are at an intermediate height relative to the protrusion 71 and the protrusions 74 and 75. It is a projection part.
- the height of the protruding portion is three stages. Also in the embodiment shown in FIGS. 1 to 6, it is possible to provide three or more stages of protrusions.
- This embodiment can be applied not only to acceleration sensors but also to general physical quantity sensors such as angular velocity sensors and impact sensors.
Abstract
Description
ばね部と、前記ばね部に連結されて高さ方向に変位可能に支持された錘部と、前記錘部と高さ方向にて対向する対向部と、を有し、
前記対向部と前記錘部との間には、高さの異なる複数の突起部が配置されており、前記錘部が高さ方向へ変位したときに前記錘部と前記対向部の間が各突起部を介して段階的に当接可能とされ、前記錘部と前記対向部の間が段階的に離間可能とされていることを特徴とするものである。
前記支持部には、前記支持部が回動して前記錘部が高さ方向に変位したときに前記錘部の変位方向に対し逆方向に変位する一対の脚部が設けられており、
各脚部と前記対向部の間には、前記脚部が高さ方向へ変位したときに一対の脚部と前記対向部の間を段階的に当接可能とし、一対の脚部と前記対向部の間を段階的に離間可能とする高さの異なる複数の突起部が配置されることが好ましい。このとき、一方の前記脚部と前記対向部との間に高さの高い突起部が配置され、他方の前記脚部と前記対向部との間に高さの低い突起部が配置されることが好ましい。これにより、脚部の対向部に対する耐衝撃性及び耐スティッキング性を効果的に向上させることができる。
図4に示す物理量センサは、長方形の長辺1a,1bおよび短辺1c,1dで囲まれた外枠部分が錘部2である。
2、20、51 錘部
3b,4b 脚部
5~7、61、62 アンカ部
16a、16b、17a、17b、18a、18b、21、63、65、67、69 ばね部
22、42 対向部
23 第1の突起部
24 第2の突起部
26 固定電極層
30~41、45、46、71~75 突起部
Claims (7)
- ばね部と、前記ばね部に連結されて高さ方向に変位可能に支持された錘部と、前記錘部と高さ方向にて対向する対向部と、を有し、
前記対向部と前記錘部との間には、高さの異なる複数の突起部が配置されており、前記錘部が高さ方向へ変位したときに前記錘部と前記対向部の間が各突起部を介して段階的に当接可能とされ、前記錘部と前記対向部の間が段階的に離間可能とされていることを特徴とする物理量センサ。 - 第1の突起部と、前記第1の突起部よりも高さが低い第2の突起部とを有し、前記錘部の平面の一方向に対する真ん中に、前記第1の突起部が配置され、その両側に間隔を空けて前記第2の突起部が配置されており、あるいは、前記真ん中に、前記第2の突起部が配置され、その両側に間隔を空けて前記第1の突起部が配置されている請求項1記載の物理量センサ。
- 第1の突起部と、前記第1の突起部よりも高さが低い第2の突起部とを有し、前記錘部の平面の一方向に対する両側に前記第1の突起部と前記第2の突起部とが夫々、配置されている請求項1記載の物理量センサ。
- 前記突起部は、前記対向部の前記錘部と対向する表面に設けられる請求項1ないし3のいずれか1項に記載の物理量センサ。
- 前記対向部の表面には、前記突起部が形成されていない領域に固定電極層が形成されており、前記固定電極層の表面は、最も低い高さで形成された前記突起部の表面よりも低く形成されている請求項4記載の物理量センサ。
- 固定支持されるアンカ部と、前記アンカ部と前記錘部とに夫々、前記ばね部を介して回動自在に連結された支持部と、を有し、
前記支持部には、前記支持部が回動して前記錘部が高さ方向に変位したときに前記錘部の変位方向に対し逆方向に変位する一対の脚部が設けられており、
各脚部と前記対向部の間には、前記脚部が高さ方向へ変位したときに一対の脚部と前記対向部の間を段階的に当接可能とし、一対の脚部と前記対向部の間を段階的に離間可能とする高さの異なる複数の突起部が配置される請求項1ないし5のいずれか1項に記載の物理量センサ。 - 一方の前記脚部と前記対向部との間に高さの高い突起部が配置され、他方の前記脚部と前記対向部との間に高さの低い突起部が配置される請求項6記載の物理量センサ。
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JP2017047497A (ja) * | 2015-09-01 | 2017-03-09 | アズビル株式会社 | 微細機械装置およびその製造方法 |
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JP6587870B2 (ja) * | 2015-09-01 | 2019-10-09 | アズビル株式会社 | 微細機械装置およびその製造方法 |
US9604840B1 (en) * | 2016-01-27 | 2017-03-28 | Taiwan Semiconductor Manufacturing Comapny Ltd. | MEMS device |
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JP2000338126A (ja) * | 1999-05-26 | 2000-12-08 | Matsushita Electric Works Ltd | 半導体加速度センサ |
JP2002539460A (ja) * | 1999-03-17 | 2002-11-19 | インプット/アウトプット,インコーポレーテッド | センサの設計およびプロセス |
WO2010001947A1 (ja) * | 2008-07-04 | 2010-01-07 | アルプス電気株式会社 | 静電容量検出型の可動センサ |
JP2011047664A (ja) * | 2009-08-25 | 2011-03-10 | Panasonic Electric Works Co Ltd | 静電容量式センサ |
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US6871544B1 (en) * | 1999-03-17 | 2005-03-29 | Input/Output, Inc. | Sensor design and process |
JP4505215B2 (ja) * | 2003-12-05 | 2010-07-21 | 株式会社アボック社 | 継手構造 |
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- 2011-02-24 CN CN201180011060.8A patent/CN102770770B/zh not_active Expired - Fee Related
- 2011-02-24 JP JP2012504400A patent/JPWO2011111539A1/ja not_active Withdrawn
- 2011-02-24 WO PCT/JP2011/054113 patent/WO2011111539A1/ja active Application Filing
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JPS6410665U (ja) * | 1987-07-10 | 1989-01-20 | ||
JPH05172846A (ja) * | 1991-10-18 | 1993-07-13 | Hitachi Ltd | マイクロセンサ及びそれを用いた制御システム |
JP2002539460A (ja) * | 1999-03-17 | 2002-11-19 | インプット/アウトプット,インコーポレーテッド | センサの設計およびプロセス |
JP2000338126A (ja) * | 1999-05-26 | 2000-12-08 | Matsushita Electric Works Ltd | 半導体加速度センサ |
WO2010001947A1 (ja) * | 2008-07-04 | 2010-01-07 | アルプス電気株式会社 | 静電容量検出型の可動センサ |
JP2011047664A (ja) * | 2009-08-25 | 2011-03-10 | Panasonic Electric Works Co Ltd | 静電容量式センサ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103569942A (zh) * | 2012-08-01 | 2014-02-12 | 台湾积体电路制造股份有限公司 | 用于防止在加工过程中和使用中出现粘附的混合mems凸块设计 |
JP2017047497A (ja) * | 2015-09-01 | 2017-03-09 | アズビル株式会社 | 微細機械装置およびその製造方法 |
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JPWO2011111539A1 (ja) | 2013-06-27 |
CN102770770B (zh) | 2014-10-15 |
CN102770770A (zh) | 2012-11-07 |
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