摘要:
A backside illuminated CMOS image sensor comprises a photo active region formed over a substrate using a front side ion implantation process and an extended photo active region formed adjacent to the photo active region, wherein the extended photo active region is formed by using a backside ion implantation process. The backside illuminated CMOS image sensor may further comprise a laser annealed layer on the backside of the substrate. The extended photo active region helps to increase the number of photons converted into electrons so as to improve quantum efficiency.
摘要:
Image sensors comprising an isolation region according to embodiments are disclosed, as well as methods of forming the image sensors with isolation region. An embodiment is a structure comprising a semiconductor substrate, a photo element in the semiconductor substrate, and an isolation region in the semiconductor substrate. The isolation region is proximate the photo element and comprises a dielectric material and an epitaxial region. The epitaxial region is disposed between the semiconductor substrate and the dielectric material.
摘要:
A device includes a semiconductor substrate, which has a front side and a backside. A photo-sensitive device is disposed on the front side of the semiconductor substrate. A first and a second grid line are parallel to each other, and are disposed on the backside of, and overlying, the semiconductor substrate. A stacked layer includes an adhesion layer, a metal layer over the adhesion layer, and a high-refractive index layer over the metal layer. The adhesion layer, the metal layer, and the high-refractive index layer are substantially conformal, and extend on top surfaces and sidewalls of the first and the second grid lines.
摘要:
A method includes forming an opening in a dielectric layer, and forming a silicon rich layer on a surface of the dielectric layer. A portion of the silicon rich layer extends into the opening and contacts the dielectric layer. A tantalum-containing layer is formed over and the contacting the silicon rich layer. An annealing is performed to react the tantalum-containing layer with the silicon rich layer, so that a tantalum-and-silicon containing layer is formed.
摘要:
A high density plasma chemical vapor deposition process including exciting gas mixture to create a plasma including ions, and directing the plasma into a dense region above the upper surface of the semiconductor wafer, heating the wafer using an additional heat source, and allowing a material from the plasma to deposit onto the semiconductor wafer.
摘要:
A system for measuring optical properties of a sample is provided. A light source provides incident polarized light. A detector detects reflected light from the sample surface. A processor determines a first coefficient (R) of the reflected light detected by the detector, determines a second coefficient (n), extinction coefficient (k), and thickness of the film based on the measured first coefficient, and determines a first dielectric constant (∈1) and a second dielectric constant (∈2) of the film according to the second coefficient (n) and extinction coefficient (k).
摘要:
A high density plasma chemical vapor deposition process including exciting gas mixture to create a plasma including ions, and directing the plasma into a dense region above the upper surface of the semiconductor wafer, heating the wafer using an additional heat source, and allowing a material from the plasma to deposit onto the semiconductor wafer.
摘要:
A method for etching a dielectric material in a semiconductor device is disclosed. After providing a conductive region, a dielectric layer is formed over the conductive region. A dielectric antireflective coating (DARC) layer is further formed on the dielectric layer. Then, a moisture-removal step is performed that removes moisture from the DARC layer and from an interface region between the dielectric and the DARC layer. A masking pattern is transferred into the DARC layer and the dielectric layer.
摘要:
A semiconductor device and method of manufacture thereof having a less free fluorine (F) fluorine containing Silica Glass (FSG) dielectric film formed thereon. The FSG dielectric film includes about 25% or less free F, has a porosity of about 5% or less and has a dielectric constant of about 3.8 or less. A first barrier layer may be disposed between a workpiece and the FSG dielectric film, and a second barrier layer may be disposed between the FSG dielectric film and at least one conductive line formed in the FSG dielectric film. The FSG dielectric film is formed by introducing SiF4:SiH4 at a reaction condition ratio of about 2.5 or less at a pressure of about 3 Torr or less and at an RF of about 500 watts to 5000 watts.
摘要:
A method for fabricating a dielectric layer provides for use of a carbon source material separate from a halogen source material when forming a carbon and halogen doped silicate glass dielectric layer. The use of separate carbon and halogen source materials provides enhanced process latitude when forming the carbon and halogen doped silicate glass dielectric layer. Such a carbon and halogen doped silicate glass dielectric layer having a dielectric constant greater than about 3.0 is particularly useful as an intrinsic planarizing stop layer within a damascene method. A bilayer dielectric layer construction comprising a carbon and halogen doped silicate glass and a carbon doped silicate glass dielectric layer absent halogen doping is useful within a dual damascene method.