Methods of processing a substrate and forming a micromagnetic device
View Patent ↗A method of processing a substrate with a conductive film formed thereover and method of forming a micromagnetic device. In one embodiment, the method of processing the substrate includes reducing a temperature of the substrate to a stress-compensating temperature, and maintaining the temperature of the substrate at the stress-compensating temperature for a period of time. The method also includes increasing the temperature of the substrate above the stress-compensating temperature.
1. A method of forming a device, comprising:
providing a substrate;
forming a magnetic core layer over said substrate;
increasing a temperature of said device to a curing temperature;
reducing said temperature of said device to a stress-compensating temperature below room temperature;
maintaining said temperature of said device at said stress-compensating temperature for a period of time; and
increasing said temperature of said device above said stress-compensating temperature.
2. The method as recited in claim 1 wherein said stress-compensating temperature is less than about zero degrees Celsius.
3. The method as recited in claim 1 wherein increasing said temperature of said device above said stress-compensating temperature includes increasing said temperature of said device to about room temperature.
4. The method as recited in claim 1 wherein said substrate is a silicon, glass, or ceramic substrate.
5. The method as recited in claim 1 wherein said reducing said temperature of said device includes gradually reducing said temperature of said device at rate of approximately one degree Celsius per minute.
6. The method as recited in claim 1 wherein said period of time is greater than about one hour and less than about 24 hours.
7. The method as recited in claim 1 wherein increasing said temperature of said device above said stress-compensating temperature is performed over a period of time greater than about one hour and less than about two hours.
8. The method as recited in claim 1 further comprising drying said device with an inert gas after increasing said temperature of said device above said stress-compensating temperature.
9. The method as recited in claim 1 further comprising forming an insulating layer and a conductive winding layer between said substrate and said magnetic core layer.
10. The method as recited in claim 1 further comprising forming an insulating layer and a conductive winding layer over said magnetic core layer.
11. A method of forming a device, comprising:
providing a substrate;
forming a conductive winding layer over said substrate;
increasing a temperature of said device to a curing temperature;
reducing said temperature of said device to a stress-compensating temperature below room temperature;
maintaining said temperature of said device at said stress-compensating temperature for a period of time; and
increasing said temperature of said device above said stress-compensating temperature.
12. The method as recited in claim 11 wherein said stress-compensating temperature is less than about zero degrees Celsius.
13. The method as recited in claim 11 wherein increasing said temperature of said device above said stress-compensating temperature includes increasing said temperature of said device to about room temperature.
14. The method as recited in claim 11 wherein said substrate is a silicon, glass, or ceramic substrate.
15. The method as recited in claim 11 wherein said reducing said temperature of said device includes gradually reducing said temperature of said device at rate of approximately one degree Celsius per minute.
16. The method as recited in claim 11 wherein said period of time is greater than about one hour and less than about 24 hours.
17. The method as recited in claim 11 wherein increasing said temperature of said device above said stress-compensating temperature is performed over a period of time greater than about one hour and less than about two hours.
18. The method as recited in claim 11 further comprising drying said device with an inert gas after increasing said temperature of said device above said stress-compensating temperature.
19. The method as recited in claim 11 wherein forming said conductive winding layer includes electroplating said conductive winding layer over said substrate.
20. The method as recited in claim 11 further comprising forming an insulating layer and a magnetic core layer over said conductive winding layer.