Base design for self-centering

• US 7,637,176 B2
• Filed: 04/20/2004
• Issued: 12/29/2009
• Est. Priority Date: 05/28/2003
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Muehlheim, Richard, Spiegel, Hans-Juergen, Woersinger, Juergen, Mast, Martin, Grote, Regina, Stratmann, Andreas
• Primary Examiner(s): Raevis; Robert R
• Application Number:
  US10/558,570
• Publication Number:
  US 20070056397A1
• Time in Patent Office: 2,079 Days
• Field of Search: 220/612, 220/622, 738/665
• US Class Current: 73/866.5
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01L 19/14 Housings G01L19/0007, G01L19/0084, G01L19/0092, G01L19/04, G01L19/06 take precedence
• CPC Class Codes: G01L 19/143 Two part housings
• CPC Class Codes: H01L 2224/49113 the connectors connecting different bonding areas on the semiconductor or solid-state body to a common bonding area outside the body, e.g. converging wires
• CPC Class Codes: H01L 2224/49171 Fan-out arrangements
• CPC Class Codes: H01L 23/045 the other leads having an insulating passage through the base
• CPC Class Codes: H01L 23/10 characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A device having at least one housing and one bottom connected to the housing. In this context, the housing has a housing wall and the bottom at least one base. Further it is provided for the base to have a specifiable edge. The essence of the present arrangement now lies in the fact that the edge of the base has at least two regions, a first region being situated closer to the housing wall and a second region being further removed from the housing wall.

Claims

1. A method for manufacturing a device, comprising:

providing a housing having a housing wall;

providing a bottom connected to the housing and having at least one base, the base having an edge, wherein;

the providing of the bottom is performed in a manner that results in formation of the edge with a first predetermined region and a second predetermined region, the first region being substantially closer to the housing wall than the second region within a single plane that is perpendicular to a central axis, the central axis extending between a top and a bottom of the housing and into the base; and

a height of the housing wall between the top and the bottom of the housing is substantially greater than a height of the base.

2. The method as recited in claim 1, further comprising:

filling a filling region in the second region between the base and the housing wall with a filling material containing a passivating substance.

3. The method as recited in claim 1, further comprising:

filling a filling region in the second region between the edge of the base and the housing wall with a filling material, thereby minimizing inclusions of at least one of air and hollow spaces.

4. The method as recited in claim 1, wherein the formation of the edge with the first and second predetermined regions provides the edge with a predetermined shape, the method further comprising:

using the shape to center the housing on the bottom.

5. A device comprising:

a housing having a housing wall;

a bottom connected to the housing and having at least one base, the base having an edge, wherein;

the device is manufactured to provide the edge of the base with a first predetermined region and a second predetermined region, the first region being substantially closer to the housing wall than the second region within a single plane that is perpendicular to a central axis, the central axis extending between a top and a bottom of the housing and into the base; and

the bottom includes a sensor element that detects and outputs an operating variable representing at least one of;

an operating parameter of a medium adjoining the sensor element; and

a state parameter of the sensor element; and

pins that contact the sensor element through the base;

wherein;

the operating parameter includes at least one of a pressure, a pressure difference, a temperature, a density, and a flow velocity; and

the state parameter includes at least one of a velocity, an acceleration, a rotation, and a yawing motion.

6. The device as recited in claim 5, wherein a direct contact exists between the housing wall and the base only in the first region, the base being designed as a centering base.

7. The device as recited in claim 5, further comprising:

a filling material corresponding to a passivating substance in the second region between the edge and the housing wall.

8. The device as recited in claim 7, wherein:

the edge is a surface that extends, in a direction perpendicular to the central axis and in planes parallel to the central axis, to surround the central axis; and

the filling material fills all space between the edge and the housing wall that existed prior to introduction of the filling material.

9. The device as recited in claim 7, wherein:

the filling material covers the base at least partially, such that the filling material covers the edge and a part of an upper side of the base.

10. The device as recited in claim 5, wherein the manufacturing of the edge of the base with the first and second predetermined regions provides the edge with a shape usable for centering the housing on the bottom.

11. The device as recited in claim 5, wherein the bottom includes a portion that extends radially outward beyond the edge.

12. The device as recited in claim 5, wherein the state parameter includes at least one of the velocity, the acceleration, and the yawing motion.

13. A method for manufacturing a device, comprising:

providing a housing having a housing wall;

providing a bottom connected to the housing and having at least one base, the base having an edge, wherein;

the providing of the bottom is performed in a manner that results in formation of the edge with a first predetermined region and a second predetermined region, the first region being substantially closer to the housing wall than the second region within a single plane that is perpendicular to a central axis, the central axis extending between a top and a bottom of the housing and into the base; and

the bottom includes a sensor element that detects and outputs an operating variable representing at least one of;

an operating parameter of a medium adjoining the sensor element; and

a state parameter of the base sensor element; and

providing pins that contact the sensor element through the base;

wherein;

the operating parameter includes at least one of a pressure, a pressure difference, a temperature, a density, and a flow velocity; and

the state parameter includes at least one of a velocity, an acceleration, a rotation, and a yawing motion.

14. The method as recited in claim 13, wherein the state parameter includes at least one of the velocity, the acceleration, and the yawing motion.

15. The method as recited in claim 13, further comprising:

filling a filling region in the second region between the base and the housing wall with a filling material containing a passivating substance.

16. The method as recited in claim 13, further comprising:

filling a filling region in the second region between the edge of the base and the housing wall with a filling material, thereby minimizing inclusions of at least one of air and hollow spaces.

17. The method as recited in claim 13, wherein the formation of the edge with the first and second predetermined regions provides the edge with a predetermined shape, the method further comprising:

using the shape to center the housing on the bottom.

18. A device, comprising:

a housing having a housing wall;

a bottom connected to the housing and having at least one base, the base having an edge, wherein;

the device is manufactured to provide the edge with a first predetermined region and a second predetermined region, the first region being substantially closer to the housing wall than the second region within a single plane that is perpendicular to a central axis, the central axis extending between a top and a bottom of the housing and into the base; and

a height of the housing wall between the top and the bottom of the housing is substantially greater than a height of the base.

19. The device as recited in claim 18, further comprising:

a filling material containing a passivating substance filled in a filling region of the second region between the base and the housing wall, thereby minimizing inclusions of at least one of air and hollow spaces.