Miniature hermetic acceleration detection device
First Claim
Patent Images
1. A MEMS acceleration detection device comprising:
- a housing having a cavity, the housing laterally surrounding the cavity;
a spring mass system assembled into the cavity of the housing, the spring mass system having an annular ring including an at least partially closable split, the annular ring having a single peripheral surface facing and in non-moving contact with a corresponding surface of the cavity during operation of the device, the housing laterally surrounding and maintaining in lateral contact the spring mass system along the peripheral surface; and
a lid enclosing the spring mass system in the cavity and contacting a top surface of the housing.
8 Assignments
0 Petitions
Accused Products
Abstract
A MEMS acceleration detection device including a housing having a cavity and a spring mass system assembled into the cavity of the housing. A lid enclosing the spring mass system in the cavity and contacting a top surface of the housing.
-
Citations
19 Claims
-
1. A MEMS acceleration detection device comprising:
-
a housing having a cavity, the housing laterally surrounding the cavity; a spring mass system assembled into the cavity of the housing, the spring mass system having an annular ring including an at least partially closable split, the annular ring having a single peripheral surface facing and in non-moving contact with a corresponding surface of the cavity during operation of the device, the housing laterally surrounding and maintaining in lateral contact the spring mass system along the peripheral surface; and a lid enclosing the spring mass system in the cavity and contacting a top surface of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A MEMS acceleration detection device comprising:
-
a housing having a cavity, the housing laterally surrounding the cavity; and a spring mass system assembled into the cavity of the housing, the spring mass system having an annular ring including an at least partially closable split, the annular ring having a single peripheral surface facing and in non-moving contact with a corresponding surface of the cavity during operation of the device, the housing laterally surrounding and maintaining in lateral contact the spring mass system along the peripheral surface; the spring mass system comprising; the annular ring surrounding a central mass; and a spring positioned between the annular ring and the central mass, the annular ring in contact with a surface of the cavity; and a lid enclosing the spring mass system in the cavity and contacting a top surface of the housing, the housing including a chamfer formed along an entrance to the cavity, the lid having a first surface facing the top surface of the housing, the first surface including a stepped surface received by the chamfer for aligning the lid with the housing during assembly. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A method of manufacture of a MEMS acceleration detection device comprising:
-
providing a housing having a cavity, the housing laterally surrounding the cavity; assembling a spring mass system into the cavity of the housing, the spring mass system having an annular ring including an at least partially closable split, the annular ring having a single peripheral surface facing and in non-moving contact with a corresponding surface of the cavity during operation of the device, the housing laterally surrounding and maintaining in lateral contact the spring mass system along the peripheral surface; and assembling a lid enclosing the spring mass system in the cavity and contacting a top surface of the housing. - View Dependent Claims (17, 18, 19)
-
Specification