摘要:
In a disk drive device, a magnetic recording disk is mounted on a hub. A base rotatably supports the hub via a bearing unit. The base has a ring-shaped wall that surrounds the bearing unit and that protrudes towards the hub. A laminated core is fixed to the base. The laminated core has a ring portion and twelve teeth that radially outwardly extend from the ring portion. Coils are wound around the twelve teeth. The base includes an increasing-thickness portion formed so that the less the distance between a part of the increasing-thickness portion and the ring-shaped wall is, the thicker the part of the increasing-thickness portion becomes.
摘要:
A manufacturing method for a solid-state image sensor, the method comprises the steps of: forming a charge storage region in a photoelectric converting unit by implanting a semiconductor substrate with ions of an impurity of a first conductivity type, using a first mask; heating the semiconductor substrate at a temperature of no less than 800° C. and no more than 1200° C. through RTA (Rapid Thermal Annealing); forming a surface region of the charge storage region by implanting the semiconductor substrate with ions of an impurity of a second conductivity type, using a second a mask; heating the semiconductor substrate at a temperature of no less than 800° C. and no more than 1200° C. through RTA (Rapid Thermal Annealing); and forming an antireflection film that covers the photoelectric converting unit at a temperature of less than 800° C., after the step of forming the surface region, in this order.
摘要:
A method for manufacturing a sensor having pixels on a substrate, each pixel including a photoelectric converter, a charge-voltage converter, and a gate for forming a channel for transferring charges in the photoelectric converter to the charge-voltage converter, comprises a step of implanting ions into target regions of the substrate, where the photoelectric converters are to be formed, wherein the step is performed N times, and in each of the steps, the ions are implanted along a direction with an inclined angle with respect to a normal to the substrate surface, the target regions where the ions are implanted are different in each step, and for each step, a mask is formed on the substrate, having an opening for every N pixels, a plurality of the openings periodically arranged in a direction along an intersection line between the surface and a plane determined by the normal and the direction.
摘要:
The disk drive device includes a base member, a hub, a bearing unit which is arranged on the base member and which rotatably supports the hub, and a spindle drive unit which drives the hub to rotate. The spindle drive unit includes a stator core having a salient pole, a coil wound around the salient pole and a magnet opposed to the salient pole. The hub formed of magnetic material includes an outer cylinder portion engaged with an inner circumference of a recording disk and an inner cylinder portion to which an outer circumference of the magnet is fixed. The diameter of the inner cylinder portion is larger than the diameter of the outer cylinder portion.
摘要:
There is provided an image pickup device, including a photoelectric conversion element converting light into charges, a transfer gate for transferring the converted charges to a floating node, a source follower transistor for outputting a signal based on a voltage of the floating node to a signal line, and a clip circuit clipping the signal line at a first voltage and a second voltage.
摘要:
A method for manufacturing a sensor having pixels on a substrate, each pixel including a photoelectric converter, a charge-voltage converter, and a gate for forming a channel for transferring charges in the photoelectric converter to the charge-voltage converter, comprises a step of implanting ions into target regions, of the substrate, where the photoelectric converters are to be formed, wherein the step is performed N times, in each of the steps, the ions are implanted along a direction with an inclined angle with respect to a normal to the substrate surface, the target regions where the ions are implanted are different in each step, and for each step, a mask is formed on the substrate, having an opening for every N pixels, a plurality of the openings periodically arranged in a direction along an intersection line between the surface and a plane determined by the normal and the direction.
摘要:
An image sensing device comprises a pixel array, and a peripheral circuit, a column selecting circuit, and a readout, wherein each pixel includes a photodiode, a floating diffusion, a transfer PMOS transistor to the floating diffusion, an amplifier PMOS transistor, and a reset PMOS transistor, the amplifier PMOS transistor has a gate which is formed by an n-type conductive pattern, and is isolated by a first element isolation region and an n-type impurity region which covers at least a lower portion of the first element isolation region, and each PMOS transistor included in the column selecting circuit has a gate which is formed by a p-type conductive pattern and is isolated by a second element isolation region, and an n-type impurity concentration in a region adjacent to a lower portion of the second element isolation region is lower than that in the n-type impurity region.
摘要:
A photoelectric conversion device comprises an n-type surface region, a p-type region which is formed under the surface region, and an n-type buried layer which is formed under the p-type region, wherein the surface region, the p-type region, and the buried layer form a buried photodiode, and a diffusion coefficient of a dominant impurity of the surface region is smaller than a diffusion coefficient of a dominant impurity of the buried layer.
摘要:
In a P-channel power MIS field effect transistor formed on a silicon surface having substantially a (110) plane, a gate insulation film is used which provides a gate-to-source breakdown voltage of 10 V or more, and planarizes the silicon surface, or contains Kr, Ar, or Xe.