公开(公告)号：US20140321497A1

公开(公告)日：2014-10-30

申请号：US14256539

申请日：2014-04-18

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Kouya YOSHIDA ,  Jun MATSUMOTO

IPC: G01N25/72 ,  G01K15/00

CPC classification number: G01N25/72 ,  B23K26/032 ,  B23K31/125 ,  G01J2005/0074 ,  G01K15/005 ,  G01N21/63 ,  G01N21/71 ,  G01R31/048 ,  G01R31/308 ,  H01L2224/48472 ,  H01L2224/73257 ,  H01L2224/859

Abstract: There are provided an optical non-destructive inspection apparatus and an optical non-destructive inspection method. The apparatus includes a focusing-collimating unit, a heating laser beam source, a heating laser beam guide unit, an infrared detector, an emitted-infrared guide unit, first and second correcting laser beam source, first and second correcting laser beam guide units, first and second correcting laser detectors, first and second reflected laser beam guide units, and a control unit. The control unit controls the heating laser beam source and the first and second correcting laser beam sources, measures a temperature rise characteristic that is a temperature rise state of a measurement spot based on a heating time, on the basis of a detection signal from the infrared detector and detection signals from the first and second correcting laser detectors, and determines a state of a measurement object based on the measured temperature rise characteristic.

公开(公告)号：US20140339429A1

公开(公告)日：2014-11-20

申请号：US14259532

申请日：2014-04-23

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Kouya YOSHIDA

IPC: G01J5/08 ,  G01J1/42 ,  G01N25/72

CPC classification number: G01J5/0896 ,  G01J1/42 ,  G01N25/72 ,  H01L2224/48472 ,  H01L2224/73257 ,  H01L2224/859

Abstract: In an optical non-destructive inspection method which can perform inspection accurately in a short time. In the method, a heating laser beam source, at least one infrared detector, a control unit, and a storage unit are used. The storage unit stores a parameter state-time constant characteristic in which a parameter corresponding to a state of the measurement object is correlated with a time constant indicating the curve shape of the temperature rise characteristic that varies depending on the state of the parameter. The control unit determines the time constant based on the curve shape of the temperature rise characteristic, which extends from a heating start time point to a time point at which a saturated temperature is reached, and determines the state of the parameter of the measurement object based on the determined time constant and the parameter state-time constant characteristic.

Abstract translation: 在光学无损检测方法中，可以在短时间内精确地进行检测。 在该方法中，使用加热激光束源，至少一个红外检测器，控制单元和存储单元。 存储单元存储参数状态 - 时间常数特性，其中与测量对象的状态相对应的参数与指示根据参数的状态变化的升温特性的曲线形状的时间常数相关联。 控制单元基于从加热开始时刻到达达到饱和温度的时间点的温升特性的曲线形状来确定时间常数，并且基于测量对象的参数的状态来确定 在确定的时间常数和参数状态 - 时间常数特性上。

公开(公告)号：US20150355031A1

公开(公告)日：2015-12-10

申请号：US14725494

申请日：2015-05-29

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Jun MATSUMOTO ,  Kouya YOSHIDA ,  Ryotaro SEO

IPC: G01J5/08 ,  B23K1/005

CPC classification number: G01J5/0896 ,  B23K1/0056 ,  G01J5/0806 ,  G01R31/046 ,  G01R31/309 ,  H05K3/306 ,  H05K3/325 ,  H05K2201/1059 ,  H05K2203/107 ,  H05K2203/1105 ,  H05K2203/162

Abstract: An optical non-destructive inspection method includes: heating including setting a measurement spot on a surface of a workpiece and irradiating the measurement spot with heating laser light using a heating laser light source, heat ray detectors, and a controller; acquiring a temperature rise property that is a temperature rise state of the measurement spot according to a heating time by detecting a heat ray radiated from the measurement spot to determine a temperature at the measurement spot; and determining whether or not a pressure contact state at pressure contact portions, which include a contact area and a contact pressure, is appropriate based on the temperature rise property.

Abstract translation: 光学非破坏性检查方法包括：加热，包括在工件的表面上设置测量点，并使用加热激光光源，热射线检测器和控制器用加热激光照射测量点; 通过检测从测量点辐射的热射线来获取作为加热时间的测量点的升温状态的温度升高特性，以确定测量点处的温度; 以及基于所述升温特性确定包括接触面积和接触压力在内的压力接触部分处的压力接触状态是否合适。

公开(公告)号：US20140314121A1

公开(公告)日：2014-10-23

申请号：US14249865

申请日：2014-04-10

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Kouya YOSHIDA ,  Jun MATSUMOTO

IPC: G01J5/10 ,  G01J5/00 ,  G01J5/02

CPC classification number: G01J5/10 ,  G01J5/0003 ,  G01J5/0096 ,  G01J5/026 ,  G01J5/0806 ,  G01J5/60 ,  G01J2005/607 ,  G01N21/63 ,  G01N21/71 ,  G01N25/72 ,  H01L2224/48472 ,  H01L2224/73257 ,  H01L2224/859

Abstract: There are provided an optical non-destructive inspection apparatus that can inspect a measurement object such as a wire bonding portion. The apparatus includes a focusing-collimating unit, a heating laser beam source, a heating laser beam guide unit, a first infrared detector, a second infrared detector, an emitted-infrared selective guide unit, and a control unit. The control unit controls the heating laser beam source, measures a temperature rise characteristic that is a temperature rise state of a measurement spot based on a heating time, on the basis of a ratio between a detected value from the first infrared detector and a detected value from the second infrared detector, determines a state of a measurement object based on the temperature rise characteristic, and changes at least one of wavelengths of infrared light beams guided to the first infrared detector and the second infrared detector based on a measured temperature during measurement.

Abstract translation: 提供了可以检查诸如引线接合部分之类的测量对象的光学无损检测装置。 该装置包括聚焦准直单元，加热激光束源，加热激光束引导单元，第一红外检测器，第二红外检测器，发射红外选择引导单元和控制单元。 控制单元控制加热激光束源，基于来自第一红外线检测器的检测值与检测值之间的比率，基于加热时间测量作为测量点的温度升高状态的温度上升特性 从第二红外线检测器基于温升特性确定测量对象的状态，并且基于测量期间测量的温度来改变被引导到第一红外检测器和第二红外检测器的红外光束的至少一个波长。

公开(公告)号：US20190022792A1

公开(公告)日：2019-01-24

申请号：US16032364

申请日：2018-07-11

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Ryota UMEZAWA ,  Daisuke KURODA ,  Hiroshi OHARA

IPC: B23K26/03 ,  B23K26/211 ,  B23K26/06

Abstract: An optical non-destructive inspection method includes: a heating laser emission step; an information acquisition step of acquiring measurement point information and heating laser information; a joint state determination step of determining the joint state on the basis of the measurement point information and the heating laser information; and a preliminary heating step, which is performed before the heating laser emission step, of causing thermal distortion in a first member by irradiating a measurement point, or a preliminary heating range that includes the measurement point, or a preliminary heating point set in the preliminary heating range, with preliminary heating laser adjusted to a thermal distortion generation intensity, which is a constant output intensity, and an irradiation time such that the thermal distortion is caused without destroying the first member.

公开(公告)号：US20140321498A1

公开(公告)日：2014-10-30

申请号：US14256599

申请日：2014-04-18

Applicant: JTEKT Corporation

Inventor： Naoki MATSUMOTO ,  Kouya YOSHIDA ,  Jun MATSUMOTO

IPC: G01N25/72 ,  G01K15/00

CPC classification number: G01N25/72 ,  G01J5/0096 ,  G01J5/0806 ,  G01J5/0846 ,  G01J5/0896 ,  G01K15/005 ,  G01N21/63 ,  G01N21/71 ,  H01L2224/48472 ,  H01L2224/73257 ,  H01L2224/859

Abstract: There are provided an optical non-destructive inspection apparatus and an optical non-destructive inspection method. The apparatus includes a focusing-collimating unit, a heating laser beam source, a heating laser beam guide unit, an infrared detector, an emitted-infrared guide unit, first and second correcting laser beam source, first and second correcting laser beam guide units, first and second correcting laser detectors, first and second reflected laser beam guide units, and a control unit. The control unit controls the heating laser beam source and the first and second correcting laser beam sources, measures a temperature rise characteristic that is a temperature rise state of a measurement spot based on a heating time, on the basis of a detection signal from the infrared detector and detection signals from the first and second correcting laser detectors, and determines a state of a measurement object based on the measured temperature rise characteristic.

Abstract translation: 提供了一种光学无损检测装置和光学非破坏性检查方法。 该装置包括聚焦准直单元，加热激光束源，加热激光束引导单元，红外检测器，发射红外引导单元，第一和第二校正激光束源，第一和第二校正激光束引导单元， 第一和第二校正激光检测器，第一和第二反射激光束引导单元和控制单元。 控制单元控制加热激光束源和第一和第二校正激光束源，基于来自红外线的检测信号来测量基于加热时间的测量点的温度上升状态的温度上升特性 检测器和来自第一和第二校正激光检测器的检测信号，并且基于所测量的温度升高特性来确定测量对象的状态。

公开(公告)号：US20170199080A1

公开(公告)日：2017-07-13

申请号：US15392791

申请日：2016-12-28

Applicant: JTEKT CORPORATION

Inventor： Naoki MATSUMOTO ,  Kouya YOSHIDA ,  Ryota UMEZAWA ,  Jun MATSUMOTO

IPC: G01J5/00 ,  G01J5/52

CPC classification number: G01J5/0096 ,  G01J5/0007 ,  G01J5/52 ,  G01J2005/528 ,  G01N25/72

Abstract: An optical nondestructive testing method includes: a laser emitting step involving emitting a heating laser from a laser output device such that the intensity of the heating laser applied to a measurement point changes sinusoidally; a laser intensity measuring step involving measuring the intensity of the heating laser by a phase difference detector; an infrared radiation intensity measuring step involving measuring, by the phase difference detector, the intensity of infrared radiation radiating from the measurement point; a phase difference measuring step involving determining, by the phase difference detector, a phase difference between the intensity of the heating laser and the intensity of the infrared radiation, and outputting the phase difference determined to a determiner from the phase difference detector; and a connection area calculating step involving determining, by the determiner, a connection area in accordance with the phase difference and phase difference-connection area correlation information.