Coating for limiting substrate damage due to discrete failure
AssigneeInternational Business Machines Corporation
InventorsBruce J. Chamberlin, Scott B. King, Joseph Kuczynski, David J. Russell
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Abstract
An apparatus is configured with a component having a coating comprising a material in a first phase (e.g., solid and/or liquid phase) with a transition temperature. The component is mechanically and/or electrically attached to a substrate. Exposure of the coating to a temperature that meets or exceeds the transition temperature causes the material to undergo a phase change. The phase change of the material alters the position of the component, including separation of the component from the substrate. The separation disrupts the attachment, thereby mitigating damage to the substrate and/or component.
Claims20
An apparatus comprising:
- a component operatively coupled to a substrate in a first position;
- a coating applied to the component and positioned adjacent to the substrate, the coating comprising:
- a material in a first phase having a transition temperature, wherein the transition temperature of the material is about 270 degrees Celsius;
- responsive to exposure of the coating to a thermal event meeting or exceeding the transition temperature, the material subject to a phase change from the first phase to a second phase, wherein the phase change interrupts a solder joint;
- and
- the phase change to alter the position of the component from the first position to a second position, wherein the second position is a separation of the component from the substrate.
An apparatus comprising:
- a component operatively coupled to a substrate in a first position;
- a coating applied to the component and positioned adjacent to the substrate, the coating comprising:
- a material in a first phase having a transition temperature, wherein the transition temperature of the material is about 270 degrees Celsius;
- responsive to exposure of the coating to a thermal event meeting or exceeding the transition temperature, the material subject to a phase change from the first phase to a second phase;
- and
- the phase change to force the position of the component from the first position to a second position, wherein the second position is a separation of the component from the substrate.
An apparatus comprising:
- a component operatively coupled to a substrate in a first position;
- a coating applied to the component and positioned adjacent to the substrate, the coating comprising:
- a material in a first phase having a transition temperature, wherein the transition temperature of the material is about 270 degrees Celsius;
- responsive to exposure of the coating to a thermal event meeting or exceeding the transition temperature, the material subject to a phase change from the first phase to a second phase;
- the phase change to alter the position of the component from the first position to a second position, wherein the second position is a separation of the component from the substrate;
- and
- the separation of the component from the substrate is isolated to the component and the applied coating.
Dependencies are inferred from the claim text.