摘要:
Semiconductor devices and back side illumination (BSI) sensor manufacturing methods are disclosed. In one embodiment, a method of manufacturing a semiconductor device includes providing a workpiece and forming an integrated circuit on a front side of the workpiece. A grid of a conductive material is formed on a back side of the workpiece using a damascene process.
摘要:
Methods of thinning a plurality of semiconductor wafers and apparatuses for carrying out the same are disclosed. A grinding module within a set of grinding modules receives and grinds a semiconductor wafer. A polishing module receives the semiconductor wafer from the grinding module and polishes the wafer. The polishing module is configured to polish the semiconductor wafer in less time than the grinding module is configured to grind the corresponding wafer.
摘要:
A method for reducing dark current in image sensors comprises providing a backside illuminated image sensor wafer, depositing a first passivation layer on a backside of the backside illuminated image sensor wafer, depositing a plasma enhanced passivation layer on the first passivation layer and depositing a second passivation layer on the plasma enhanced passivation layer.
摘要:
A device includes semiconductor substrate having a front side and a backside. A polysilicon layer is disposed on the backside of the semiconductor substrate. The polysilicon layer includes a portion doped with a p-type impurity. A dielectric layer is disposed on the backside of the semiconductor substrate, wherein the polysilicon layer is between the semiconductor substrate and the polysilicon layer.
摘要:
A device includes a semiconductor substrate having a front side and a backside. A photo-sensitive device is disposed at a surface of the semiconductor substrate, wherein the photo-sensitive device is configured to receive a light signal from the backside of the semiconductor substrate, and convert the light signal to an electrical signal. An amorphous-like adhesion layer is disposed on the backside of the semiconductor substrate. The amorphous-like adhesion layer includes a compound of nitrogen and a metal. A metal shielding layer is disposed on the backside of the semiconductor substrate and contacting the amorphous-like adhesion layer.
摘要:
An improved reflectivity optical grid for image sensors. In an embodiment, a backside illuminated CIS device includes a semiconductor substrate having a pixel array area comprising a plurality of photosensors formed on a front side surface of the semiconductor substrate, each of the photosensors forming a pixel in the pixel array area; an optical grid material disposed over a backside surface of the semiconductor substrate, the optical grid material patterned to form an optical grid that bounds each of the pixels in the pixel array area and extending above the semiconductor substrate, the optical grid having sidewalls and a top portion; and a highly reflective coating formed over the optical grid, comprising a pure metal coating of a metal that is at least 99% pure, and a high-k dielectric coating over the pure metal coating that has a refractive index of greater than about 2.0. Methods are also disclosed.
摘要:
Semiconductor devices and back side illumination (BSI) sensor manufacturing methods are disclosed. In one embodiment, a method of manufacturing a semiconductor device includes providing a workpiece and forming an integrated circuit on a front side of the workpiece. A grid of a conductive material is formed on a back side of the workpiece using a damascene process.
摘要:
Methods and apparatuses for a resistive random access memory (RRAM) device are disclosed. The RRAM device comprises a bottom electrode, a resistive switching layer disposed on the bottom electrode, and a top electrode disposed on the resistive switching layer. The resistive switching layer is made of a composite of a metal, Si, and O. There may be an additional tunnel barrier layer between the top electrode and the bottom electrode. The top electrode and the bottom electrode may comprise multiple sub-layers.
摘要:
A semiconductor contact structure and method provide contact structures that extend through a dielectric material and provide contact to multiple different subjacent materials including a silicide material and a non-silicide material such as doped silicon. The contact structures includes a lower composite layer formed using a multi-step ionized metal plasma (IMP) deposition operation. A lower IMP film is formed at a high AC bias power followed by the formation of an upper IMP film at a lower AC bias power. The composite layer may be formed of titanium. A further layer is formed as a liner over the composite layer and the liner layer may advantageously be formed using CVD and may be TiN. A conductive plug material such as tungsten or copper fills the contact openings.
摘要:
A wafer thinning apparatus includes a first metrology tool configured to measure an initial thickness of the wafer. The wafer thinning apparatus further includes a controller connected to the first metrology tool, and configured to determine a polishing time based on the initial thickness, a predetermined thickness and a material removal rate. The wafer thinning apparatus further includes a polishing tool connected to the controller configured to polish the wafer for a period of time equal to the polishing time. The wafer thinning apparatus includes a second metrology tool connected to the controller and the polishing tool, and configured to measure a polished thickness. The controller is configured to update the material removal rate based on the polished thickness, the predetermined thickness and the polishing time.