摘要:
A unit pixel in a CMOS image sensor, which enhances a capacitance of a photodiode to reduce noises and increase the maximum output signal of the image sensor, is provided. To achieve this, the CMOS image sensor includes a photodiode aligned with an edge of an insulating film for separating elements and formed by doping impurities to a semiconductor layer by an ion implantation; and a capacitor formed along with interface between the photodiode and the insulating film on plan and formed by layering a bottom electrode, a dielectric and an upper electrode contacted with the photodiode.
摘要:
An image sensor includes a plurality of unit pixels for sensing a light beam to generate an image data. Each of the unit pixels includes, a photoelectric element for sensing a light beam incident thereto and generating photoelectric charges, a transistor including a gate dielectric formed adjacent to the photoelectric element and a gate electrode formed on top of the gate dielectric and a capacitor structure including an insulating film formed on a portion of the photoelectric element and a bottom electrode, wherein the insulating film and the gate dielectric are made of a same material and the bottom electrode and the gate electrode are made of a same material.
摘要:
An image sensor includes a plurality of unit pixels for sensing a light beam to generate an image data. Each of the unit pixels includes, a photoelectric element for sensing a light beam incident thereto and generating photoelectric charges, a transistor including a gate dielectric formed adjacent to the photoelectric element and a gate electrode formed on top of the gate dielectric and a capacitor structure including an insulating film formed on a portion of the photoelectric element and a bottom electrode, wherein the insulating film and the gate dielectric are made of a same material and the bottom electrode and the gate electrode are made of a same material.
摘要:
An image sensor capable of preventing the degradation of pinned photodiodes and the generation of leakage current between neighboring pinned photodiodes is provided. The disclosed image sensor contains a plurality of pixel units, each pixel unit having a photodiode region. The image sensor includes a semiconductor substrate of a first conductivity type; a device isolation layer formed in the semiconductor substrate; a field stop layer formed beneath the device isolation layer; a trench formed in the semiconductor substrate, wherein the trench surrounds the photodiode region; a first doping region of the first conductivity type formed beneath the surface of the semiconductor substrate and beneath the surfaces of the trench; an insulating member filling the trench; and a second doping region of a second conductivity type formed in the semiconductor substrate under the first doping region.
摘要:
Embodiments relate to an image sensor and a method of forming an image sensor. According to embodiments, an image sensor may include a first substrate and a photodiode. A circuitry including a metal interconnection may be formed on and/or over the first substrate. The photodiode may be formed over a first substrate, and may contact the metal interconnection. The circuitry of the first substrate may include a first transistor, a second transistor, an electrical junction region, and a first conduction type region. The first and second transistors may be formed over the first substrate. According to embodiments, an electrical junction region may be formed between the first transistor and the second transistor. The first conduction type region may be formed at one side of the second transistor, and may be connected to the metal interconnection.
摘要:
Embodiments relate to an image sensor. According to embodiments, an image sensor may include a circuitry, a first substrate, a photodiode, a metal interconnection, and an electrical junction region. The circuitry and the metal interconnection may be formed on and/or over the first substrate. The photodiode may contact the metal interconnection and may be formed on and/or over the first substrate. The circuitry may include an electrical junction region on and/or over the first substrate and a first conduction type region on and/or over the electrical junction region and connected to the metal interconnection. According to embodiments, an image sensor and a manufacturing method thereof may provide a vertical integration of circuitry and a photodiode.
摘要:
Embodiments relate to an image sensor and a method of forming an image sensor. According to embodiments, an image sensor may include a first substrate and a photodiode. A circuitry including a metal interconnection may be formed on and/or over the first substrate. The photodiode may be formed over a first substrate, and may contact the metal interconnection. The circuitry of the first substrate may include a first transistor, a second transistor, an electrical junction region, and a first conduction type region. The first and second transistors may be formed over the first substrate. According to embodiments, an electrical junction region may be formed between the first transistor and the second transistor. The first conduction type region may be formed at one side of the second transistor, and may be connected to the metal interconnection.