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1. 发明授权

US5043694A Resistance element and method for trimming resistance element 失效
标题翻译：电阻元件和微调电阻元件的方法
公开(公告)号：US5043694A
公开(公告)日：1991-08-27
申请号：US359209
申请日：1989-05-31
申请人： Shigeki Higashi , Tetsuya Murakawa
发明人： Shigeki Higashi , Tetsuya Murakawa
IPC分类号： H01C17/24
CPC分类号： H01C17/24 , Y10T29/49082
摘要： A resistance element includes a resistance film formed between a pair of electrodes. A trimming groove is formed in the resistance film by means of a laser beam, whereby a resistance film portion which is electrically independent from the resistance film is formed. The trimming groove is formed between a start point and an end point which are both positioned at the outside edge of the resistance film, and the trimming groove includes a first portion which is started at the start point and curved (convex) toward one electrode, a second portion which is started at an end of the first portion and extended in a direction parallel with a line connecting the electrodes, and a third portion which is started at an end of the second portion and terminated at the end point and curved toward the other electrode. Therefore, the electrically independent resistance film portion is formed in the shape of an elongated circle. In the electrically independent resistance film portion, a further trimming groove intersecting the line connecting the electrodes is formed.
摘要翻译：电阻元件包括形成在一对电极之间的电阻膜。通过激光束在电阻膜上形成修整槽，形成与电阻膜电独立的电阻膜部分。修整槽形成在位于电阻膜的外边缘的起始点和终点之间，修整槽包括从起始点开始并向一个电极弯曲（凸起）的第一部分，第二部分，其在第一部分的端部处开始并且在与连接电极的线平行的方向上延伸;以及第三部分，其在第二部分的端部处开始并终止于终点并朝向其他电极。因此，电独立的电阻膜部分形成为细长圆形的形状。在电独立的电阻膜部分中，形成与连接电极的线交叉的另一个修整槽。

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