摘要:
A front-illuminated avalanche photodiode (APD) includes an opening (16) for incident light, a number of various semiconductor layers from the opening and downwards including a multiplication layer (7), a field-control layer (8) and an absorption layer (10), where the absorption layer is arranged to absorb photons. Under the absorption layer (10) there is at least one Bragg mirror (14) arranged to reflect photons, that have passed the absorption layer (10) from the opening back to the absorption layer.
摘要:
An advanced, very high transmittance, back-illuminated, silicon-on-sapphire wafer substrate design is presented for enabling high quantum efficiency and high resolution, silicon or silicon-germanium avalanche photodiode detector arrays. The wafer substrate incorporates a stacked antireflective bilayer between the sapphire and silicon layers, comprised of single crystal aluminum nitride (AlN) and non-stoichiometric, silicon rich, amorphous silicon nitride (a-SiNX 50% for 250-300 nm, T>70% for 300-400 nm and T>90% for 400-1100 nm.
摘要:
Optical structures having an array of protuberances between two layers having different refractive indices are provided. The array of protuberances has vertical and lateral dimensions less than the wavelength range of lights detectable by a photodiode of a CMOS image sensor. The array of protuberances provides high transmission of light with little reflection. The array of protuberances may be provided over a photodiode, in a back-end-of-line interconnect structure, over a lens for a photodiode, on a backside of a photodiode, or on a window of a chip package.
摘要:
Solar cells attached to a contact lens are provided, as well as methods for making the solar cells and contact lenses. The solar cells have electrodes on only one side of the device, which facilitates attachment of the solar cell to a contact lens. In one embodiment, the solar cells are made using a “two sided” process. By using the two-sided process, solar cells of only a few microns in thickness can be fabricated. Such relatively thin solar cells can be incorporated into a contact lens without discomfort to the wearer. By providing an infinitely renewable power source on a contact lens, the solar cells enable the use of electronic components on the contact lens while eliminating the recharging or replacing issues that arise with batteries.
摘要:
Provided are a photodetector capable of suppressing variations in the output characteristics among photodiodes, and a display device provided with the photodetector. A display device in use has an active matrix substrate (20) including a transparency base substrate (2), a plurality of active elements and a photodetector. The photodetector includes a light-shielding layer (3) provided on the base substrate (2), and a photodiode (1) arranged on an upper layer of the light-shielding layer (3). The light-shielding layer (3) is overlapped with the photodiode (1) in the thickness direction of the base substrate (2). The photodiode (1) includes a silicon layer (11) insulated electrically from the light-shielding layer (3). The silicon layer (11) includes a p-layer (11c), an i-layer (11b) and an n-layer (11a) that are provided adjacent to each other in the planar direction. The p-layer (11c) is formed so that its area (length Lp) will be larger than the area (length Ln) of the n-layer (11a).
摘要:
A radiation-receiving semiconductor component is specified. A semiconductor body is formed with silicon and has a radiation entrance surface and also an absorption zone. Electromagnetic radiation passes into the semiconductor body through the radiation entrance surface and is absorbed. The absorption zone has a thickness of at most 10 μm. A filter layer is formed with a dielectric material. The filter layer covers the radiation entrance surface of the semiconductor body. A potting body covers the semiconductor body at least at the radiation entrance surface thereof. The potting body contains a radiation-absorbing material.
摘要:
A photoelectric conversion device is provided in which a first photoelectric conversion module having a plurality of first photoelectric conversion elements formed on one surface of a first translucent insulated substrate and a second photoelectric conversion module having a plurality of photoelectric conversion elements formed on one surface of a second translucent insulated substrate are bonded together with the first photoelectric conversion elements and the second photoelectric conversion elements placed on an inner side. The photoelectric conversion device includes a plurality of photoelectric conversion element pairs formed by electrically connecting, in series, the first photoelectric conversion elements and the second photoelectric conversion elements arranged in positions opposed to each other. All the photoelectric conversion element pairs are electrically connected in series.
摘要:
A solid-state imaging device including a color filter having a filter characteristic more approaching to a human visual sensitivity is provided. The color filter including a group of dielectric layers has high-refractive-index-material films and low-refractive-index-material films, the high-refractive-index-material film and the low-refractive-index-material film being n films and (n−1) films, respectively, which are laminated alternately, n being an integer equal to or larger than 4. The color filter includes at least a red-transmission filter, a green-transmission filter, and a blue-transmission filter. The group of dielectric layers is common in the color filter and includes two of the high-refractive-index-material films and one of the low-refractive-index-material films positioned between and in contact with the two of high-refractive-index-material films. In the red-transmission filter, a first one of low-refractive-index-material films and a second one of low-refractive-index-material films, which are not in the group of dielectric layers, have a thickness different from each other.
摘要:
The present invention relates generally to a method and apparatus for attaching a close proximity filter to an FPA (focal plane array) and more particularly, to a method and apparatus that allows improved spectral discrimination of a mid-wave infra red (MWIR) detector by applying an improved multi-color filter to a focal plane array (FPA), while employing existing production equipment and techniques to reduce cost and improve production yield.
摘要:
A photodiode includes a substrate having a first semiconductor type surface region on at least a portion thereof, and a second semiconductor type surface layer formed in a portion of the surface region. A multi-layer anti-reflective coating (ARC) is on the second semiconductor type surface layer, wherein the multi-layer ARC comprises at least two different dielectric layers. A layer resistant to oxide etch is above a peripheral portion the multi-layer ARC. Further layers are above the layer resistant to oxide etch, and thereby above the peripheral portion the multi-layer ARC. A window extends down to the multi-layer ARC. A photodiode region is formed by a pn-junction of the first semiconductor type surface region and the second semiconductor type surface layer.