公开(公告)号：US20050237685A1

公开(公告)日：2005-10-27

申请号：US11105690

申请日：2005-04-14

申请人： Kazuhiko Miyata

发明人： Kazuhiko Miyata

IPC分类号： H04R17/00 ,  G02F1/1362 ,  G09F9/00 ,  H01L21/02 ,  H01L21/336 ,  H01L21/822 ,  H01L27/04 ,  H01L27/06 ,  H01L27/08 ,  H01L27/12 ,  H01L29/786 ,  H02H9/00 ,  H04R3/00 ,  H04R23/00

CPC分类号： G02F1/1362 ,  G09G2330/04 ,  H04R3/007 ,  H04R17/00 ,  H04R2400/00

摘要： A thin film circuit substrate is provided with a voice-output-section driving section, formed of a thin film layer on an insulative substrate, for driving a voice output section. An antisurge section, provided on a wiring between the voice-output-section driving section and an output terminal section thereof, includes an antisurge element. When a surge voltage is applied to the wiring, the antisurge element, monolithically formed on the thin film circuit substrate, connects the wiring to the ground so as to pass a current (surge current), generated by the surge voltage applied to the wiring, to the ground. This makes it possible to provide a thin film circuit substrate which is monolithically provided with a function which can protect a circuit section when a voltage exceeding a predetermined range is applied to the wiring linking the circuit section with an input terminal section or an output terminal section.

摘要翻译： 在薄膜电路基板上设置有由绝缘基板上的薄膜层形成的语音输出部驱动部，用于驱动语音输出部。 在声音输出部驱动部和输出端部之间的布线上设置的防喘振部包括防喘振元件。 当对布线施加浪涌电压时，单片形成在薄膜电路基板上的防喘振元件将布线连接到地，以便通过由施加到布线的浪涌电压产生的电流（浪涌电流） 到地面。 这使得可以提供一种薄膜电路基板，该薄膜电路基板具有当将超过预定范围的电压施加到将电路部分与输入端子部分或输出端子部分连接的布线时能够保护电路部分的功能的薄膜电路基板 。