Deposition processing systems having active temperature control and associated methods
Several embodiments of the present technology are directed to actively controlling a temperature of a substrate in a chamber during manufacturing of a material or thin film. In some embodiments, the method can include cooling or heating the substrate to have a temperature within a target range, depositing a material over a surface of the substrate, and controlling the temperature of the substrate while the material is being deposited. In some embodiments, controlling the temperature of the substrate can include removing thermal energy from the substrate by directing a fluid over the substrate to maintain the temperature of the substrate within a target range throughout the deposition process.
1. A deposition processing system, comprising
a chamber;
a substrate;
a support coupled to the chamber to support the substrate within the chamber;
a deposition mechanism to deposit a material onto the substrate;
at least one of a heater, a cooler, or a combined heater and cooler thermally coupled to the substrate;
at least a first temperature measurement device to measure a substrate temperature;
at least a second temperature measurement device to measure a material temperature, wherein the material is the material deposited on the substrate; and
a controller to receive temperature data from at least the first temperature measurement device and the second temperature measurement device to control the temperature of the substrate based on the material temperature using at least one of the heater, the cooler, or the combined heater and cooler.
2. The deposition system of claim 1 wherein the at least one of the heater, the cooler, or the combined heater and cooler thermally coupled to the substrate comprises at least a channel formed in the substrate holder and whereby the controller controls a fluid flowing through the channel to control the substrate temperature.
3. The deposition system of claim 2 wherein the at least one of the heater, the cooler, or the combined heater and cooler is a cooler and the fluid removes thermal energy from the substrate.
4. The deposition system of claim 2 wherein the at least one of the heater, the cooler, or the combined heater and cooler is a heater and the fluid adds thermal energy to the substrate.
5. The deposition system of claim 4 wherein the at least one of the heater, the cooler, or the combined heater and cooler comprises is at least one heating element.
6. The deposition system of claim 4 wherein the heater, the cooler, or the heater or the combined heater and cooler comprises at least one heat lamp.
7. The deposition system of claim 1 wherein the support is a rotating support.
8. The deposition system of claim 1 comprising at least a third temperature measurement device that measures a chamber temperature.
9. The deposition system of claim 8 wherein the controller controls the substrate temperature based on the chamber temperature.
10. The deposition system of claim 1 wherein the controller controls the substrate temperature to minimize thermal stress based on the coefficient of thermal expansion (CTE) mismatch between the substrate and the material being deposited on the substrate.
11. The deposition system of claim 10 wherein the controller controls the substrate temperature to be within a target range.
12. The deposition system of claim 1 wherein the controller controls the substrate temperature prior to depositing material on the substrate to limit a rate of temperature change such that the substrate does not deform.