Abstract: A memory cell of a static random access memory (SRAM) includes a pair of drive transistors, a pair of load transistors, a pair of write-only transfer transistors, a pair of read-only transfer transistors, a pair of read-only drive transistors, and a pair of column selection transistors. The memory cell also includes a word line, a pair of write bit lines, a pair of read bit lines, and a column selection line.

Abstract: According to one embodiment, a bit line negative potential circuit includes a bit line capacitance compensation capacitor which compensates the capacitance of a bit line and a peripheral capacitance compensation capacitor which compensates the peripheral capacitance of the bit line. After the bit line is switched to a low potential, the bit line is driven based on a charging voltage of the bit line capacitance compensation capacitor and the peripheral capacitance compensation capacitor.

Abstract: Included are a memory cell, a first metal interconnection, a variable capacitance circuit and a connection switch. The memory cell includes cross-coupled first and second inverters which are connected to a power supply node. The first metal interconnection is connected to the power supply node. The variable capacitance circuit includes: second and third metal interconnections electrically connected to a connection node; and a controller capable of controlling electrical connection between the third metal interconnection and the connection node. The connection switch is connected between the first metal interconnection and the connection node of the variable capacitance circuit. The connection switch is configured to electrically connect the first metal interconnection and the connection node in a write operation of the memory cell.

Abstract: A memory cell of a static random access memory (SRAM) includes a pair of drive transistors, a pair of load transistors, a pair of write-only transfer transistors, a pair of read-only transfer transistors, a pair of read-only drive transistors, and a pair of column selection transistors. The memory cell also includes a word line, a pair of write bit lines, a pair of read bit lines, and a column selection line.

Abstract: Included are a memory cell, a first metal interconnection, a variable capacitance circuit and a connection switch. The memory cell includes cross-coupled first and second inverters which are connected to a power supply node. The first metal interconnection is connected to the power supply node. The variable capacitance circuit includes: second and third metal interconnections electrically connected to a connection node; and a controller capable of controlling electrical connection between the third metal interconnection and the connection node. The connection switch is connected between the first metal interconnection and the connection node of the variable capacitance circuit. The connection switch is configured to electrically connect the first metal interconnection and the connection node in a write operation of the memory cell.

Abstract: Disclosed is an acrylic copolymer type of cissing inhibitor effective in restraining both of self-cissing and oil cissing.

Abstract: An initializing apparatus includes a laser light source for emitting an erasing laser light for initializing an optical disk, a laser drive circuit for driving the laser light source according to an AC waveform signal, an optical system for irradiating the optical disk with the erasing laser light and track address detecting circuitry for detecting the track address. Furthermore, the laser light source, the laser drive circuit and the optical system are previously adjusted so that an amorphous portion having a size of ½ or less of a wavelength of the erasing laser light may be formed at the inside of a melting re-crystallization portion.

Abstract: It is the object of the invention to provide the actuator for the objective lens, suitable for the optical disc apparatus with high speed access property and high drive sensitivity especially in the track drive direction, and to solve problems concerning with manufacturing processes, by using metallic leaf springs with high reliability for supporting the lens holder to make its movements to be translation motions in both focus and tracking drive directions. The lens holder 22, a movable object, is supported by four leaf springs 21a to 21d, thereby its movements is pure translation motions in both focus and tracking drive directions. The drive sensitivity in the track drive direction is largely increased by designing and improving configurations of the magnetic circuit and the focus and tracking drive coils.