| 摘要 |
PURPOSE:To obtain a lot of ribbon shaped diaphragms at a time, by cutting off a base main body where several sets of vibration base units are connected continuously after vapor deposition. CONSTITUTION:Several sets of cutting slits 3 are arranged at a equal interval by using a metallic material such as aluminum and copper, and several sets of diaphragm base units 2 are continuously provided for the base main body 1, and after the base 1 is set to a jig in a vacuum metallizer, the vacuum metallizer is made vacuum. The mechine is heated, beryllium is vacuum-deposited on the base units 2 of the base main body 1 to form a vacuum deposition section 5. After the beryllium is vacuum-deposited, the lengthwise direction X of the several slits 3 of the link part 1A linking the units 2 is cut off at two parts, Y, Y' in the orthogonal direction to the upper and lower part of the slits 3, allowing to cut off each base main body 1. |
