公开(公告)号：US07607352B2

公开(公告)日：2009-10-27

申请号：US11642712

申请日：2006-12-21

Applicant: Noboru Endou

Inventor： Noboru Endou

IPC: H01L41/053

CPC classification number: G01N29/24 ,  B06B1/0261 ,  B06B2201/40 ,  B06B2201/55 ,  G01N29/225 ,  G01N29/326 ,  G01N29/348 ,  G10K9/122

Abstract: Components of an ultrasonic sensor are contained in a cylindrical casing having an end wall closing one end of the casing. A vibrator such as a piezoelectric element is disposed in the casing in contact with the end wall. An integrated circuit chip that includes a signal generator, a filter device and a temperature sensor is contained in the casing. Vibrations generated in the vibrator are transferred to the end wall that transmits ultrasonic waves. Ultrasonic waves received by the end wall are converted into electrical signals in the vibrator. Frequency of the transmitting signals and a frequency region of the signals to be received are controlled according to the ambient temperature, so that they always coincide with a resonant frequency of the end wall which changes according to the ambient temperature. Thus, high transmitting/receiving efficiency is always realized, irrespective of the ambient temperature.

Abstract translation: 超声波传感器的部件容纳在具有封闭壳体的一端的端壁的圆筒形壳体中。 诸如压电元件的振动器设置在壳体中与端壁接触。 包括信号发生器，过滤器装置和温度传感器的集成电路芯片包含在壳体中。 在振动器中产生的振动被传递到发射超声波的端壁。 由端壁接收的超声波在振动器中被转换为电信号。 根据环境温度来控制发射信号的频率和要接收的信号的频率区域，使得它们总是与根据环境温度变化的端壁的谐振频率重合。 因此，无论环境温度如何，始终实现高发射/接收效率。

公开(公告)号：US5789797A

公开(公告)日：1998-08-04

申请号：US687681

申请日：1996-07-26

Applicant: Toshio Ikuta ,  Noboru Endou ,  Masahiro Aratani

Inventor： Toshio Ikuta ,  Noboru Endou ,  Masahiro Aratani

IPC: H01L27/02 ,  H01L29/00 ,  H01L23/48 ,  H01L29/82

CPC classification number: H01L27/0214 ,  H01L2224/45124 ,  H01L2224/48091 ,  H01L2224/48472 ,  H01L2924/10253 ,  H01L2924/30107

Abstract: An improved on-chip type filter for filtrating electromagnetic noise is disclosed. Within a sensor chip are provided processing and amplifying circuits, a ground pad, a power pad and an output pad. Also, within the sensor chip are disposed low pass filters between the power pad, the outpad and the circuits to filtrate electromagnetic noise. The lengths of aluminum wires connecting the power pad, the output pad and the low pass filters are shorter than the lengths of aluminum wires connecting the ground pad and the low pass filters. The aluminum wires connecting the power pad or the output pad and the low pass filters are uncrossed wires, which do not cross any other wires.

Abstract translation: 公开了一种用于过滤电磁噪声的改进的片上型滤波器。 在传感器芯片内提供处理和放大电路，接地焊盘，电源焊盘和输出焊盘。 此外，在传感器芯片内部，在功率垫，输出板和电路之间设置低通滤波器，以滤除电磁噪声。 连接功率垫，输出垫和低通滤波器的铝线的长度短于连接接地焊盘和低通滤波器的铝线的长度。 连接电源板或输出板的铝线和低通滤波器是不相交的导线，不会穿过任何其他导线。

公开(公告)号：US20070157728A1

公开(公告)日：2007-07-12

申请号：US11642712

申请日：2006-12-21

Applicant: Noboru Endou

Inventor： Noboru Endou

IPC: G01H13/00 ,  G01N29/00

CPC classification number: G01N29/24 ,  B06B1/0261 ,  B06B2201/40 ,  B06B2201/55 ,  G01N29/225 ,  G01N29/326 ,  G01N29/348 ,  G10K9/122

Abstract: Components of an ultrasonic sensor are contained in a cylindrical casing having an end wall closing one end of the casing. A vibrator such as a piezoelectric element is disposed in the casing in contact with the end wall. An integrated circuit chip that includes a signal generator, a filter device and a temperature sensor is contained in the casing. Vibrations generated in the vibrator are transferred to the end wall that transmits ultrasonic waves. Ultrasonic waves received by the end wall are converted into electrical signals in the vibrator. Frequency of the transmitting signals and a frequency region of the signals to be received are controlled according to the ambient temperature, so that they always coincide with a resonant frequency of the end wall which changes according to the ambient temperature. Thus, high transmitting/receiving efficiency is always realized, irrespective of the ambient temperature.

Abstract translation: 超声波传感器的部件容纳在具有封闭壳体的一端的端壁的圆筒形壳体中。 诸如压电元件的振动器设置在壳体中与端壁接触。 包括信号发生器，过滤器装置和温度传感器的集成电路芯片包含在壳体中。 在振动器中产生的振动被传递到发射超声波的端壁。 由端壁接收的超声波在振动器中被转换为电信号。 根据环境温度来控制发射信号的频率和要接收的信号的频率区域，使得它们总是与根据环境温度变化的端壁的谐振频率重合。 因此，无论环境温度如何，始终实现高发射/接收效率。