Abstract:
Disclosed herein are compositions for removing silicone resins and methods of thinning a substrate by using the same, as well as related methods, apparatus and systems for facilitating the removal of silicone resins. More particularly, disclosed herein are compositions for removing silicone resins, the compositions including a heterocyclic solvent and an alkyl ammonium fluoride salt represented by a formula, (R)4N+F−, wherein R is a C1 to C4 linear alkyl group. Silicone resins may be effectively removed by using the compositions since the compositions exhibit an excellent decomposition rate with respect to the silicone resins that remain on a semiconductor substrate in a process of backside grinding of the semiconductor substrate, backside electrode formation, or the like.
Abstract:
Disclosed herein are compositions for removing silicone resins and methods of thinning a substrate by using the same, as well as related methods, apparatus and systems for facilitating the removal of silicone resins. More particularly, disclosed herein are compositions for removing silicone resins, the compositions including a heterocyclic solvent and an alkyl ammonium fluoride salt represented by a formula, (R)4N+F−, wherein R is a C1 to C4 linear alkyl group. Silicone resins may be effectively removed by using the compositions since the compositions exhibit an excellent decomposition rate with respect to the silicone resins that remain on a semiconductor substrate in a process of backside grinding of the semiconductor substrate, backside electrode formation, or the like.
Abstract:
A wearable device and a managing device to manage a status of a user, the wearable device including a brainwave measuring sensor to measure a brainwave of the user, an environment information sensor to sense surrounding environment information, a vibrator to generate vibrations, a display device to display a message, a communicator to transmit sensed values of the brainwave measuring sensor and the environment information sensor to an external device and to receive a control signal from the external device, and a controller to control operations of the vibrator and the display device based on at least one of the sensed value of the brainwave measuring sensor, the sensed value of the environment sensor, and the control signal. Therefore, safety of the user is maintained even when the use is in a dangerous situation.