Abstract: In semiconductor devices with nonvolatile memory modules embedded therein, a technology is provided which facilitates evaluation of the nonvolatile memory characteristics. An MCU includes a CPU, a flash memory, and an FPCC that controls write or erase operations to the flash memory. The FPCC executes a program used to perform write or other operations to the flash memory, thereby performing write or other operations to the flash memory in accordance with a command issued by the CPU. In the MCU, the FCU is configured to execute test firmware to evaluate the flash memory. In addition, a RAM can be used by both the CPU and FCU.

Abstract: Provided is an optical fiber ribbon capable of concurrently ensuring mid-span access performance and cable production performance. The optical fiber ribbon 1 includes three or more optical fibers 2 arranged in parallel and connecting portions 3 connecting the adjacent optical fibers 2, the connecting portions 3 being formed intermittently in each of a ribbon longitudinal direction X and a ribbon width direction Y. The optical fiber ribbon 1 including the connecting portions 3 having split strength which is set in the range from 1.50 gf to 21.0 gf, contributes to exhibiting both the mid-span access performance and the cable production performance.

Abstract: In semiconductor devices with nonvolatile memory modules embedded therein, a technology is provided which facilitates evaluation of the nonvolatile memory characteristics. An MCU includes a CPU, a flash memory, and an FPCC that controls write or erase operations to the flash memory. The FPCC executes a program used to perform write or other operations to the flash memory, thereby performing write or other operations to the flash memory in accordance with a command issued by the CPU. In the MCU, the FCU is configured to execute test firmware to evaluate the flash memory. In addition, a RAM can be used by both the CPU and FCU.

Abstract: A manufacturing method for an optical fiber ribbon, in which: a plurality of optical fibers are arranged in parallel and the neighboring optical fibers are partially coupled with each other at given intervals in a longitudinal direction to form a subunit; and the optical fibers positioned at side edges of the neighboring subunits are partially coupled with each other at a given intervals in the longitudinal direction, includes: sending out the optical fibers in a parallel manner with intervals provided therebetween, applying an uncured resin to the optical fibers, continuously changing positions at which the uncured resin is interrupted by a plurality of interrupt members, and forming coupled portions at which the optical fibers are coupled to each other by irradiating resin curing energy, wherein a moving period or phase of the interrupt members is changed for every arbitrary optical fibers.

Abstract: In semiconductor devices with nonvolatile memory modules embedded therein, a technology is provided which facilitates evaluation of the nonvolatile memory characteristics. An MCU includes a CPU, a flash memory, and an FPCC that controls write or erase operations to the flash memory. The FPCC executes a program used to perform write or other operations to the flash memory, thereby performing write or other operations to the flash memory in accordance with a command issued by the CPU. In the MCU, the FCU is configured to execute test firmware to evaluate the flash memory. In addition, a RAM can be used by both the CPU and FCU.

Abstract: It is an object of the present invention to suppress a coating resin from being shaved off in an event where optical fibers are sent out from a coating dice. When a Young's modulus of ultraviolet curable resins 13 located on outermost layers of optical fibers 3 is 300 MPa or more, and the Young's modulus is 300 MPa to 600 MPa, a plurality of the optical fibers 3 in which friction force measured by the following measurement method is 0.3 N or less are arranged in parallel to one another, these respective optical fibers 3 are fixed to one another intermittently along a longitudinal direction thereof, and adhered portions 5 are formed.

Abstract: An optical fiber ribbon includes: a plurality of optical fibers arranged in parallel; and a tape material covering the plurality of optical fibers into a tape, in which the plurality of optical fibers are coated respectively with translucent color layers of different colors, and in at least two of the plurality of optical fibers, markings for identifying the optical fiber ribbon are provided at a same position in a longitudinal direction of the optical fiber ribbon.

Abstract: Provided is an optical fiber ribbon capable of concurrently ensuring mid-span access performance and cable production performance. The optical fiber ribbon 1 includes three or more optical fibers 2 arranged in parallel and connecting portions 3 connecting the adjacent optical fibers 2, the connecting portions 3 being formed intermittently in each of a ribbon longitudinal direction X and a ribbon width direction Y. The optical fiber ribbon 1 including the connecting portions 3 having split strength which is set in the range from 1.50 gf to 21.0 gf, contributes to exhibiting both the mid-span access performance and the cable production performance.

Abstract: Provided is an method of manufacturing an optical fiber tape core wire with which, even when the optical fiber tape core wire is separated into optical fiber wires, it can be determined which optical fiber tape core wire each optical fiber wire is associated with. A fiber running length adjustment device 13 adjusting the running lengths of the optical fiber wires 2 running from printers 8 (8A to 8D) to a tape forming device 11 is used to adjust the running lengths of all the optical fiber wires 2 between the printers 8 and the tape forming device 11 to a same length. By this adjustment, markings 6 formed on each optical fiber wire 2 (2A to 2D) can be aligned with the corresponding markings 6 formed on the other fiber wires 2 to the same position.

Abstract: It is an object of the present invention to suppress a coating resin from being shaved off in an event where optical fibers are sent out from a coating dice. When a Young's modulus of ultraviolet curable resins 13 located on outermost layers of optical fibers 3 is 300 MPa or more, and the Young's modulus is 300 MPa to 600 MPa, a plurality of the optical fibers 3 in which friction force measured by the following measurement method is 0.3 N or less are arranged in parallel to one another, these respective optical fibers 3 are fixed to one another intermittently along a longitudinal direction thereof, and adhered portions 5 are formed.

Abstract: Provided is an method of manufacturing an optical fiber tape core wire with which, even when the optical fiber tape core wire is separated into optical fiber wires, it can be determined which optical fiber tape core wire each optical fiber wire is associated with. A fiber running length adjustment device 13 adjusting the running lengths of the optical fiber wires 2 running from printers 8 (8A to 8D) to a tape forming device 11 is used to adjust the running lengths of all the optical fiber wires 2 between the printers 8 and the tape forming device 11 to a same length. By this adjustment, markings 6 formed on each optical fiber wire 2 (2A to 2D) can be aligned with the corresponding markings 6 formed on the other fiber wires 2 to the same position.