Abstract: Exemplary methods for detecting substrate slippage include sweeping a first sensor and a second sensor of an in-situ monitoring system across the substrate as the substrate undergoes polishing with a rotatable platen. A first sequence of signal values from the first sensor and a second sequence of signal values from the second sensor include a signal strength relative to the thickness of the layer. For each signal value of at least some of the first sequence of signal values and second sequence of signal values, the method may include determining a first and second position on the substrate respective. The method may also include activating a slippage alert if: the signal strength varies by 30% or more from the first sequence of signal values to the second sequence of signal values, a position on the substrate for the second signal value cannot be determined, or a combination thereof.

Abstract: A method of reclaiming a used seal includes boiling the used seal in a liquid, and after boiling the used seal in the liquid, baking the used seal. The boiling the used seal may include boiling for a predetermined boiling time in the liquid, and the baking the used seal may include baking the used seal for a predetermined bake time at a predetermined temperature.

Abstract: A method of reclaiming a used seal includes boiling the used seal in a liquid, and after boiling the used seal in the liquid, baking the used seal. The boiling the used seal may include boiling for a predetermined boiling time in the liquid, and the baking the used seal may include baking the used seal for a predetermined bake time at a predetermined temperature.

Abstract: A method for performing active jammer suppression on an electronic device includes: performing down conversion on a received signal having in-band interference, in order to obtain at least one down-converted received signal; performing down conversion on a jammer signal derived from a jammer source causing the in-band interference, in order to obtain at least one down-converted jammer signal; adjusting a phase and/or an amplitude of the down-converted jammer signal to obtain a jammer suppression signal; and performing jammer suppression according to the down-converted received signal and the jammer suppression signal. An apparatus for performing the active jammer suppression on the electronic device includes a received-signal down converter, at least one jammer down converter, and at least one adjustment module. In particular, the adjustment module is arranged to iteratively adjust the phase and/or the amplitude of the down-converted jammer signal to obtain an optimal version of the jammer suppression signal.

Abstract: A method for compensating a clock bias in a Global Navigation Satellite System (GNSS) receiver includes deriving at least one clock drift value comprising a first clock drift value corresponding to a first time point, and calculating the clock bias according to the at least one clock drift value and at least one interval within the time period between the first time point and a specific time point after the first time point. An apparatus for compensating a clock bias in a GNSS receiver is also provided.

Abstract: A method for performing active jammer suppression on an electronic device includes: performing down conversion on a received signal having in-band interference, in order to obtain at least one down-converted received signal; performing down conversion on a jammer signal derived from a jammer source causing the in-band interference, in order to obtain at least one down-converted jammer signal; adjusting a phase and/or an amplitude of the down-converted jammer signal to obtain a jammer suppression signal; and performing jammer suppression according to the down-converted received signal and the jammer suppression signal. An apparatus for performing the active jammer suppression on the electronic device includes a received-signal down converter, at least one jammer down converter, and at least one adjustment module. In particular, the adjustment module is arranged to iteratively adjust the phase and/or the amplitude of the down-converted jammer signal to obtain an optimal version of the jammer suppression signal.

Abstract: A method for compensating a clock bias in a Global Navigation Satellite System (GNSS) receiver includes deriving at least one clock drift value comprising a first clock drift value corresponding to a first time point, and calculating the clock bias according to the at least one clock drift value and at least one interval within the time period between the first time point and a specific time point after the first time point. An apparatus for compensating a clock bias in a GNSS receiver is also provided.