Abstract: A benzoxazine resin, including a compound of the following Formula 1-1: where R1, R2, and R3 are as defined herein.

Abstract: A resin, including a compound having the following Formula 1-1: wherein n ranges from 1 to 5, and R1, R2, R3 and R4 are as defined herein.

Abstract: A semiconductor fabrication method includes: forming an epitaxial stack including at least one sacrificial epitaxial layer and at least one channel epitaxial layer; forming a plurality of fins in the epitaxial stack; performing tuning operations to prevent a width of the sacrificial epitaxial layer expanding beyond a width of the channel epitaxial layer during operations to form isolation features; forming the isolation features between the plurality of fins, wherein the width of the sacrificial epitaxial layer does not expand beyond the width of the channel epitaxial layer; forming a sacrificial gate stack; forming gate sidewall spacers on sidewalls of the sacrificial gate stack; forming inner spacers around the sacrificial epitaxial layer and the channel epitaxial layer; forming source/drain features; removing the sacrificial gate stack and sacrificial epitaxial layer; and forming a replacement metal gate, wherein the metal gate is shielded from the source/drain features.

Abstract: The present invention is related to a method of presenting adjustable multi-channel sound field over a display device when a multimedia software is playing an audio data through a speaker system. The present invention is provided to a user to adjust sound field and obtain a real time sound field after being adjusted with limited facilities. The present invention generates a virtual sound field interface on a display device, the virtual sound field interface including a user position and at least a movable virtual sound source. Each virtual sound source is at a corresponding position. Then, the present invention adjusts a position of the movable virtual sound source to obtain a corresponding real time sound field.