Fracture ring sensor
AssigneeInternational Business Machines Corporation
InventorsJonathan D. Bradbury, Jonathan R. Fry, Michael R. Kane
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention include a fracture ring sensor and a method of using the same to detect out of tolerance forces. Aspects of the invention include a product having a defined an out of tolerance force, a fracture ring sensor, and a mounting assembly coupling the fracture ring sensor to the product. The fracture ring sensor is patterned with a conductive trace and is manufactured to break when subjected to a predetermined amount of force. The predetermined amount of force is substantially equal to a percentage of the out of tolerance force of the product.
Claims19
A method for forming a fracture ring for detecting out of tolerance forces applied to a printed circuit board, the method comprising:
- providing a fracture ring comprising a first material, wherein the first material comprises a ceramic material, glass, or a fiber-resin composite material;
- configuring the fracture ring to break when subjected to a predetermined amount of force, the predetermined amount of force substantially equal to a percentage of an out of tolerance force of the printed circuit board;
- patterning the fracture ring with a conductive trace;
- and
- forming electrical contacts on opposite ends of the conductive trace.
A method for forming a fracture ring for detecting out of tolerance forces applied to a printed circuit board, the method comprising:
- providing a fracture ring comprising a first material;
- configuring the fracture ring to break when subjected to a predetermined amount of force, the predetermined amount of force substantially equal to a percentage of an out of tolerance force of the printed circuit board, wherein configuring the fracture ring to break comprises pre-damaging the fracture ring to tune a break strength of the fracture ring;
- patterning the fracture ring with a conductive trace;
- and
- forming electrical contacts on opposite ends of the conductive trace.
A method for forming a fracture ring for detecting out of tolerance forces applied to a printed circuit board, the method comprising:
- providing a fracture ring comprising a first material;
- configuring the fracture ring to break when subjected to a predetermined amount of force, the predetermined amount of force substantially equal to a percentage of an out of tolerance force of the printed circuit board;
- patterning the fracture ring with a first conductive trace;
- patterning the fracture ring with a second conductive trace;
- and
- forming electrical contacts on opposite ends of the conductive trace.
Dependencies are inferred from the claim text.