Flexible printed substrate and method for manufacturing flexible printed substrate

Abstract

Provided is a flexible printed substrate that can prevent a situation in which the flexible printed substrate becomes stuck to a heating platen having a smooth surface; also provided is a method of manufacturing the flexible printed substrate. A flexible printed substrate 10A comprises: a first insulating layer 21 that is formed using a liquid crystal polymer, which is a thermoplastic resin, as a material thereof; a wiring layer 22 that is formed on a surface of the first insulating layer 21 and is provided with a plurality of wiring lines 221; a second insulating layer 32 that is disposed so as to cover the wiring layer 22 on the opposite side from the first insulating layer 21, and that is formed of a thermoplastic resin; a first adhesive layer 31 that is interposed between and adheres the wiring layer 22 and the second insulating layer 32 to each other, is filled into the spaces between the wiring lines 221 and covers the wiring layer 22; and a first rough surface part 211 that has a degree of surface roughness such that the ten point mean roughness Rz is in the range of 1-5 μｍ.

Description

technical field [0001] The invention relates to a flexible printed substrate and a method for manufacturing the flexible printed substrate. Background technique [0002] In recent years, the development of robots has become remarkable, such as the appearance of robots performing various activities. In addition, wearable electronic devices that can be worn on the human body or clothing are also being developed and put into practical use as various devices. Most of these robots and wearable electronic devices use electric wires for power supply and electrical signal transmission, but in general, electric wires have a structure in which a copper wire is used as a core and the outer periphery is covered with an insulator, so the electric wire itself has little stretchability. . For this reason, for example, in a robot or the like, it is necessary to have a margin in the length of the electric wires so as not to interfere with the movement of the joints, etc., and this becomes ...

AI Technical Summary

Problems solved by technology

However, there may be a decrease in function (movement speed, accuracy, etc.)

In order to compensate for this decrease in functionality, there may be cases where a high-spec motor or the like is used or necessary components are added, but in this case, the manufacturing cost will increase

In addition, the structure of the cable storage part becomes complicated, so there is a problem that the wiring of the cables when the robot arm is assembled, and when the cables are disassembled and taken out for maintenance, etc., are very complicated.

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