I soldered a dozen PSoC6 BGA with a process called Vapor Phase. I also own a T-962 but I can tell you it's very hard or impossible as well to use this oven for soldering BGA's.
Take a look at this video:
Please refer page number 56 of the PSoC 6 datasheet which specifies that the maximum peak temperature is 260 degrees centigrade and the maximum time at this temperature is 30 seconds.
Could you please specify whether you are concerned about the temperature while soldering or temperature during the PSoC functioning?
Please note that the maximum operating temperature of the PSoC is 85 degrees centigrade and it is mentioned in same page 56.