Laser machining method, laser machining device and control method of laser machining
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazuhide Isaji, Hidehiko Karasaki, Hisashi Kinoshita, Makoto Kato
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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazuhide Isaji, Hidehiko Karasaki, Hisashi Kinoshita, Makoto Kato
Estimating the term…
This is to present a laser machining method and a laser machining apparatus for drilling holes, capable of achieving conduction securely between adjacent conductive layers, by detecting the machining state of a workpiece adequately, and controlling the machining. For this purpose, the number of laser pulse outputs capable of machining securely is preset. During laser machining, reflected laser beam intensity from the workpiece and incident laser beam intensity are detected, and the machining state of the workpiece is detected. As a result, when judging the workpiece has reached a desired machining state, laser machining is finished if the number of times of laser machining has not reached the set number of laser pulse outputs. If it is judged that the workpiece has not reached the desired machining state, laser machining is finished when reaching the set number of laser pulse outputs. As a result, the laser machining method and laser machining apparatus capable of drilling holes of high quality at high yield and shortening the machining cycle time can be realized.
A laser machining method comprising the steps of:
A laser machining method comprising the steps of:
A laser machining method comprising:
A laser machining method comprising:
A laser machining method comprising the steps of:
A laser machining method comprising the steps of:
A laser machining method comprising:
A laser machining method comprising:
Dependencies are inferred from the claim text.