Systems and methods for building tamper resistant coatings
View Patent ↗A system for building a TRC includes a spray mechanism for spraying a coating material, a target system including a rotatable spray-target that retains an object with a surface to be covered by the TRC, a temperature sensor, and a control system for controlling application of the coating material based on a temperature that is determined during the spraying. The temperature sensor may comprise a non-contact infrared sensor that may measure a temperature related to the object. The measured temperature may be controlled by varying the speed of the rotatable spray-target.
1. A system for building a tamper resistant coating, comprising:
a spray mechanism for spraying a coating material;
a target system including a rotatable spray-target that retains an object with a surface to be covered by the tamper resistant coating;
a temperature sensor for monitoring a temperature related to an area of interest of a spraying environment, wherein the area of interest includes at least a portion of the rotatable spray target; and
a control system for controlling application of the coating material based on the temperature that is determined during the spraying.
2. The system of claim 1 wherein the application comprises thermal spraying.
3. The system of claim 1 wherein the application comprises moving the surface across a spray of the coating material.
4. The system of claim 1 wherein the application comprises moving a spray of the coating material across the surface.
5. The system of claim 1 wherein the application comprises controlling relative motion between a spray of the coating material and the surface.
6. The system of claim 1 wherein the application comprises controlling relative speed of motion between a spray of the coating material and the surface.
7. The system of claim 6 wherein the relative speed of motion is changed by a wheel-speed controller.
8. The system of claim 1 wherein the application comprises controlling cooling of the surface.
9. The system of claim 8 wherein the cooling is changed by a forced-fluid cooling system.
10. The system of claim 9 wherein the fluid comprises a gas.
11. The system of claim 1 wherein the application comprises controlling heating of the surface.
12. The system of claim 11 wherein the heating is changed by a radiant heating system.
13. The system of claim 1 wherein the object comprises at least one of a substrate, an integrated circuit, an interconnect between the substrate and the integrated circuit, an integrated circuit package, and a primer coating.
14. The system of claim 1 wherein the temperature sensor comprises a non-contact sensor.
15. The system of claim 1 wherein the temperature sensor comprises a non-contact infrared sensor.
16. The system of claim 1 wherein the temperature comprises a temperature of the surface.
17. The system of claim 16 wherein the surface comprises a portion of at least one of a substrate, an integrated circuit, an interconnect between the substrate and the integrated circuit, an integrated circuit package, and a primer coating.
18. The system of claim 1 wherein the temperature is periodically measured and determined.
19. The system of claim 1 , wherein the rotatable spray target comprises a substantially circular wheel having a circumference.
20. The system of claim 19 , wherein the area of interest comprises a region about the circumference of the spray target.