One of the key challenges in rapid thermal processing is accurate measurement and control of the wafer temperature. Monitoring the ambient with a thermocouple is not feasible, in that the high temperature ramp rates prevent the wafer from coming to thermal equilibrium with the process chamber.
The premium tax credit is a government subsidy to help make health insurance premiums more affordable for middle and low-income people. The subsidy is only available to people with modified adjusted gross incomes from 100 to 400 percent of federal poverty level.
Offered on a sliding scale based on income, the premium tax credit limits what people will be required to pay for a benchmark health plan to a percentage of their income (ranging in 2014 from 2% to 9.5% of income).