Patent application number | Description | Published |
20080264798 | Copper Plating Bath and Plating Method - An acid copper plating solution and plating method are disclosed. The acid copper plating solution comprises copper ions, an organic acid or an inorganic acid, chloride ions, high molecular weight surfactant which controls the electrodeposition reaction, and a sulfur-containing saturated organic compound which promotes the electrocoating rate, wherein the high molecular weight surfactant comprises two or more types with different hydrophobicities. The plating method is a method for forming a plating film on a conductor layer, which is formed on at least a part of a structural object having a concave-convex pattern on a semiconductor substrate, and comprises providing a cathode potential to the conductor layer and supplying a plating solution which electrically connects an anode with the conductor layer, wherein the plating solution contains 25-75 g/l of copper ion and 0.4 mol/l of an organic acid or inorganic acid and an electric resistor is installed between the conductor layer and the anode. Also disclosed is a plating method for forming a wiring circuit on an electronic circuit substrate having fine holes and trenches, comprising forming a plating film on a conductor layer, which is formed on at least a part of the substrate, and filling the holes and trenches with copper, wherein the plating film is formed by using an acid copper plating solution containing copper ions, organic or inorganic acid, chloride ions, sulfur-containing saturated organic compound, and high molecular weight surfactant controlling electrocoating concentration of 500 ppm or more. | 10-30-2008 |
20090016184 | METHOD FOR SETTING RECORDING POWER, MULTILAYER OPTICAL RECORDING MEDIUM, AND METHOD FOR RECORDING INFORMATION - A method for setting recording power of recording light, capable of an appropriate setting for a multilayer optical recording medium. The recording power of the recording light for an information recording layer of the multilayer optical recording medium to be irradiated with, is set by: evaluating an information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to a light incident surface than the information recording layer to be evaluated does is/are in a low transmittance state; evaluating the information recording layer to be evaluated for recording power when all the information recording layer(s) lying closer to the light incident surface than the information recording layer to be evaluated does is/are in a high transmittance state; and determining ground information for setting recording power, based on these values of the recording power. | 01-15-2009 |
20090045067 | Apparatus and method for processing a substrate - A method and apparatus are set forth capable of processing a substrate with a high uniformity within the surface area even for a thin feeding layer. The method comprises arranging a counter electrode and the substrate to confront each other; providing a membrane between the counter electrode and the substrate to define a substrate side region and a counter electrode side region. The substrate side region and the counter electrode side region are capable of accommodating respective electrolytes. The substrate side region and the counter electrode side region are supplied with respective electrolytes having different specific resistances. A processing current is also supplied between the substrate and the counter electrode. | 02-19-2009 |
20090141609 | MULTI-LAYERED OPTICAL RECORDING MEDIUM AND METHOD FOR OPTICAL RECORDING AND READING - A multi-layered optical recording medium is provided of which the manufacturing costs is significantly reduced. The multi-layered optical recording medium has multiple information recording layers and at least two layers of the information recording layers have the same medium-side address information. This configuration allows for reducing the types of master stampers and thus reducing manufacturing costs. | 06-04-2009 |
20100034067 | INFORMATION RECORDING METHOD AND INFORMATION RECORDING APPARATUS - Information is recorded on a multi-layered optical recording medium by irradiating it with a laser beam. The recording medium can form a first information recording layer that is the farthest from a light incident surface, a second information recording layer that is the second farthest from the light incident surface, and at least one third information recording layer that is located closer to the light incident surface than the second information recording layer is. At this time, if all the information recording layers other than the first information recording layer are either blank or have been completely recorded, then information is recorded on the first information recording layer. This allows for stabilizing the energy of a recording laser beam during recording and thereby providing improved recording quality. | 02-11-2010 |
20100039911 | INFORMATION RECORDING METHOD AND INFORMATION RECORDING APPARATUS - A recording method for irradiating a multi-layered optical recording medium with a laser beam to record information thereon. The optical recording medium can form a first information recording layer that is the farthest from a light incident surface, a second information recording layer that is the second farthest from the light incident surface, and at least one third information recording layer that is located closer to the light incident surface than the second information recording layer is. The method is to record information on the second information recording layer when all the information recording layers other than the second information recording layer are either blank or have been completely recorded. This allows for realizing high-quality information recording in consideration of adherence of foreign matters or occurrence of scratches. | 02-18-2010 |
20100074084 | OPTICAL RECORDING MEDIUM AND METHOD FOR REPRODUCING THE SAME - An optical recording medium which includes three or more information layers and has a higher stack density of information layers than before in the direction of thickness while reducing crosstalk during reproduction, and a method for reading the optical recording medium are provided. The optical recording medium has a three-layer structure which includes a substrate, a first information layer, a first spacer layer, a second information layer, a second spacer layer, a third information layer, and a cover layer thinner than the substrate, with these layers being stacked in that order over the substrate, wherein the following Equation (I) is satisfied: | 03-25-2010 |
20100097913 | INFORMATION RECORDING METHOD AND INFORMATION RECORDING APPARATUS - An information recording method for a multi-layered optical recording medium that can form information recording layers in 3 layers or more. When all the information recording layers are blank, the information recording layer that is the closest to the light incident surface is irradiated with a laser beam to start recording. High quality information recording is thus implemented in consideration of adherence of foreign matters and occurrence of scratches. | 04-22-2010 |
20100103799 | Optical head device and optical recording and reading system - An optical head device (optical head) for a multi-layered optical recording medium has a focus control mechanism that makes use of astigmatism. The focus control mechanism has a sensor lens that includes a cylindrical lens. The focus control mechanism causes a light beam having passed through the sensor lens to have astigmatism, thereby being focused linearly in the Y direction on a front focal line located closer to the sensor lens and focused linearly in the X direction at a rear focal line located farther therefrom. The optical head also includes a photodetector which is disposed between the front focal line and the rear focal line to detect a focal position from the shape of a light beam. At the position of the front focal line, a shield plate with a window portion is disposed. The window portion has a size so as to allow the focal line to pass therethrough and shield stray light reflected from an unfocused recording layer. | 04-29-2010 |
20100219078 | PLATING APPARATUS AND PLATING METHOD - A plating apparatus securely carries out a flattening plating of a substrate to form a plated film having a flat surface without using a costly mechanism, and without applying an extra plating to the substrate. The plating apparatus includes a substrate holder; a cathode section having a seal member for watertightly sealing a peripheral portion of the substrate, and a cathode electrode for supplying an electric current to the substrate; an anode disposed in a position facing the surface of the substrate; a porous member disposed between the anode and the surface of the substrate; a constant-voltage control section for controlling a voltage applied between the cathode electrode and the anode at a constant value; and a current monitor section for monitoring an electric current flowing between the cathode electrode and the anode, and feeding back a detection signal to the constant-voltage control section. | 09-02-2010 |
20100260026 | MULTILAYER OPTICAL DISC - In a multi-layer optical disc, having three ( | 10-14-2010 |
20100296377 | METHOD OF EVALUATING CHARACTERISTICS OF MULTILAYER OPTICAL RECORDING MEDIUM - A multilayer optical recording medium having three or more information recording layers is irradiated with a laser beam, and a first signal obtained from the reflected laser beam is subjected to a frequency filter. A second signal obtained by filtration through a high-pass filter is used to evaluate the characteristics of the multilayer optical recording medium. In this manner, even in a multilayer optical recording medium having three or more information recording layers, the influence of the variation of the thickness and material of the information recording layers and the influence of the variation of the thickness of a spacer layer can be clearly determined and evaluated. | 11-25-2010 |
20110076436 | OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME - An optical recording medium having three or more information recording layers reduces crosstalk caused by multi-reflected beams and improves signal quality. In the optical recording medium having three or more information recording layers, the refractive index of a plurality of intermediate layers disposed between adjacent information recording layers is greater than the refractive index of a cover layer disposed between a light incident surface and an information recording layer being the closest from the light incident surface. | 03-31-2011 |