Waterproof membrane switch for notebook computer's keyboard

摘要

In recent years, mobile computing technology has developed remarkably for increasing demands. Nowadays notebook type personal computers (PC) have become small and smart enough to carry them outdoors for casual uses. As the result, various environment-resist properties are required for notebook PCs and their parts. For example, a dust protected membrane switch (MBSW) for PC's keyboard is developed for the needs. Recently, further properties, that is, waterproof performance is required for the MBSW. In this paper, our concept for the MBSW and performance of our new MBSW. developed by improving waterproof sealing materials and modifying manufacturing processes are described.