Abstract: A method of fabricating a device includes forming a dummy gate over a plurality of fins. Thereafter, a first portion of the dummy gate is removed to form a first trench that exposes a first hybrid fin and a first part of a second hybrid fin. The method further includes filling the first trench with a dielectric material disposed over the first hybrid fin and over the first part of the second hybrid fin. Thereafter, a second portion of the dummy gate is removed to form a second trench and the second trench is filled with a metal layer. The method further includes etching-back the metal layer, where a first plane defined by a first top surface of the metal layer is disposed beneath a second plane defined by a second top surface of a second part of the second hybrid fin after the etching-back the metal layer.

Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

Abstract: An ultrasonic transducer, including a piezoelectric element with physical characteristics of radial resonant frequencies and thickness resonant frequencies, and with an upper surface and a lower surface opposite to each other through the piezoelectric element and a lateral surface connecting the upper surface and the lower surface, and an acoustic matching layer set on the upper surface of the piezoelectric element and having a first resonant matching part and a second resonant matching part, wherein a thickness of the first resonant matching part in a direction perpendicular to the upper surface is greater than a thickness of the second resonant matching part in the direction, and the thickness of the first resonant matching part matches one radial resonant frequency of the piezoelectric element and the thickness of the second resonant matching part matches another radial resonant frequency or one of the thickness resonant frequency of the piezoelectric element.

Abstract: An ultrasonic transducer includes a piezoceramic element with a first surface and a second surface opposite to each other through the piezoceramic element and a lateral surface connecting the first surface and the second surface, an acoustic matching layer with a third surface and a fourth surface opposite to each other through the acoustic matching layer and the third surface connecting with the second surface of the piezoceramic element, a first damping element with a fifth surface and a sixth surface opposite to each other through the first damping element and the sixth surface connecting with the first surface of the piezoceramic element, and a second damping element encapsulating the first damping element and the lateral surface of the piezoceramic element.

Abstract: An ultrasonic transducer includes a carrier with a first surface and a second surface which are opposite to each other, a piezoceramic element attached on the first surface of the carrier, a first acoustic matching layer with a third surface and a fourth surface which are opposite to each other, the third surface is attached on the second surface of the carrier, wherein the first acoustic matching layer includes a mesh with openings, and the thickness of first acoustic matching layer is smaller than ¼ wavelength of an ultrasonic wave emitted by the piezoceramic element in the first acoustic matching layer in an operating frequency, and a total area of the openings of mesh is larger than 30% area of the third surface of first acoustic matching layer, and a second acoustic matching layer disposed on the fourth surface of the first acoustic matching layer.

Abstract: An ultrasonic transducer includes a piezoceramic element, a first acoustic matching layer with extending sidewall attaching the lateral surface of the piezoceramic element, wherein the thickness of the first acoustic matching layer is smaller than ¼ wavelength of an ultrasonic wave emitted by the piezoceramic element in the first acoustic matching layer in an operating frequency of the ultrasonic transducer, and the height of the sidewall of the first acoustic matching layer is larger than 1/20 height of the lateral surface of the piezoceramic element, and a second acoustic matching layer attaching the first acoustic matching layer.

Abstract: An ultrasonic transducer includes a piezoceramic element, a first acoustic matching layer with extending sidewall attaching the lateral surface of the piezoceramic element, wherein the thickness of the first acoustic matching layer is smaller than ¼ wavelength of an ultrasonic wave emitted by the piezoceramic element in the first acoustic matching layer in an operating frequency of the ultrasonic transducer, and the height of the sidewall of the first acoustic matching layer is larger than 1/20 height of the lateral surface of the piezoceramic element, and a second acoustic matching layer attaching the first acoustic matching layer.

Abstract: An ultrasonic transducer includes a carrier with a first surface and a second surface which are opposite to each other, a piezoceramic element attached on the first surface of the carrier, a first acoustic matching layer with a third surface and a fourth surface which are opposite to each other, the third surface is attached on the second surface of the carrier, wherein the first acoustic matching layer includes a mesh with openings, and the thickness of first acoustic matching layer is smaller than ¼ wavelength of an ultrasonic wave emitted by the piezoceramic element in the first acoustic matching layer in an operating frequency, and a total area of the openings of mesh is larger than 30% area of the third surface of first acoustic matching layer, and a second acoustic matching layer disposed on the fourth surface of the first acoustic matching layer.