JP2003340586A - Control method of laser beam processing machine for drilling printed circuit board - Google Patents

Control method of laser beam processing machine for drilling printed circuit board

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Publication number
JP2003340586A
JP2003340586A JP2002150995A JP2002150995A JP2003340586A JP 2003340586 A JP2003340586 A JP 2003340586A JP 2002150995 A JP2002150995 A JP 2002150995A JP 2002150995 A JP2002150995 A JP 2002150995A JP 2003340586 A JP2003340586 A JP 2003340586A
Authority
JP
Japan
Prior art keywords
printed circuit
data
circuit board
laser
galvano
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002150995A
Other languages
Japanese (ja)
Other versions
JP4143334B2 (en
Inventor
Yasunobu Ueno
泰延 植野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Via Mechanics Ltd
Original Assignee
Hitachi Via Mechanics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Via Mechanics Ltd filed Critical Hitachi Via Mechanics Ltd
Priority to JP2002150995A priority Critical patent/JP4143334B2/en
Publication of JP2003340586A publication Critical patent/JP2003340586A/en
Application granted granted Critical
Publication of JP4143334B2 publication Critical patent/JP4143334B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Laser Beam Processing (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that processing time is required since driving data comprising galvano data, table data, and laser date must be prepared to each printed circuit board before the starting of the processing regarding the whole holes to be processed in correction of distortion and rotation of the printed circuit board. <P>SOLUTION: A laser beam processing program, which is previously converted to table moving data and galvano moving data on the design from coordinate data on the printed circuit board of a hole to be drilled, is prepared. A correction amount to correct the distortion and the rotation by reading out a position reference mark of the printed circuit board is calculated. Actual drilling is executed by driving an X-Y table, a galvano mirror, and a laser oscillation source by correcting every one instruction unit of the laser beam processing program by using the correction amount. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、プリント基板穴明
け用レーザ加工機の制御方法に関するものである。 【0002】 【従来の技術】近年、携帯電話やPC用の基板として多
く用いられるプリント基板は、年々小型化、高集積化が
要求され、1枚のプリント基板を原盤として製造し、そ
れから多くのプリント回路基板を切り出す方法が取られ
るようになってきた。そのため、プリント基板に明ける
穴数は飛躍的に増大し、最近では1枚当たり十万個以上
を一度に明ける必要がある。従って、プリント基板穴明
け用レーザ加工機による加工を高速化するために、X−
Yテーブル上に載置されたプリント基板の歪みや回転の
補正を高速に行い、ガルバノミラー、X−Yテーブル、
及びレーザ発振源の駆動制御を行う必要がある。 【0003】そのような駆動制御方法として、例えば特
許第3126316号公報に記載されているように、次
のような制御方法が提案されている。プリント基板の歪
みや回転の補正のためにプリント基板に形成された位置
基準マークをカメラで読み取り、測定した歪みや回転を
補正するための補正量を算出し、それぞれの加工穴のプ
リント基板上の座標データを、この補正量を用いて実際
のX−Yテーブル上の座標データ(以下、実加工データ
という。)に演算補正する。この実加工データから、ガ
ルバノミラーを駆動するためのガルバノデータ、X−Y
テーブルを駆動するためのテーブルデータ、及びレーザ
発振源を発振させるタイミングのレーザデータからなる
駆動用データを全加工穴について算出し、それらの全加
工穴に関する駆動用データを記憶部に記憶する。この記
憶した各駆動用データに基づき、ガルバノミラー、X−
Yテーブル、レーザ発振源を駆動し実際の穴明け加工を
行う、というものである。 【0004】 【発明が解決しようとする課題】ガルバノミラーを駆動
するためのガルバノデータ、X−Yテーブルを駆動する
ためのテーブルデータ、及びレーザ発振源を発振させる
タイミングのレーザデータからなる駆動用データを全加
工穴について、個々のプリント基板に対して加工開始前
に作成しなければならなくなり、穴の数が多い時には各
プリント基板に対してその都度時間を要する演算が必要
となる。 【0005】そこで、本発明の目的は、加工開始前の演
算時間を短縮することにある。 【0006】 【課題を解決するための手段】プリント基板にレーザで
穴明け加工を行うレーザ加工機の制御方法において、明
けるべき穴のプリント基板上の座標データから予め設計
上のテーブル移動データ、ガルバノ移動データに変換し
たレーザ加工プログラムを作成し、プリント基板の位置
基準マークを読み取って歪みや回転を補正する補正量を
算出し、この補正量を用いてレーザ加工プログラムの1
命令単位毎に補正し、X−Yテーブル、ガルバノミラ
ー、レーザ発振源を駆動して実際の穴明け加工を行うこ
とを特徴とするプリント基板穴明け用レーザ加工機の制
御方法にすることにより解決できる。 【0007】即ち、X−Yテーブル、ガルバノミラーが
駆動している間は駆動指令が出てから駆動が終了するま
での間に空き時間が生じる。従って、明けるべき穴のプ
リント基板上の座標データから予め設計上のテーブル移
動データ、ガルバノ移動データに変換したレーザ加工プ
ログラムを作成しておき、各プリント基板でことなる歪
みや位置の回転を各プリント基板に設けた位置基準マー
クを読取ることによって各プリント基板に対する補正量
を算出し、この空き時間を利用して、ガルバノミラーを
駆動するためのガルバノデータ、X−Yテーブルを駆動
するためのテーブルデータを個々に補正し、レーザ発振
器を発振させるタイミングのレーザデータを作成するこ
とにより、加工処理時間の短縮を行う。ここで、レーザ
加工プログラムのテーブル移動データ及びガルバノ移動
データは穴の設計上の数値で行うので、同一設計のプリ
ント基板に対しては一度作成すれば全てのプリント基板
に使用できるものである。 【0008】 【発明の実施の形態】以下本発明の実施例について図を
用いて説明する。図3は本発明に係るプリント基板穴明
け用レーザ加工機の概略構成図である。ここで、1はプ
リント基板、10aはプリント基板を乗せるYテーブ
ル、10bはXテーブル、(以後、まとめてX−Yテー
ブル10という。)、20a、20bはガルバノミラ
ー、30はレーザ発振器、40は位置基準マークの位置
を測定するカメラ、200は穴明け用レーザ加工機を制
御するためのNC装置である。 【0009】図4はガルバノミラー部とX−Yテーブル
部の詳細図である。1はプリント基板、2は位置基準マ
ーク、10はX−Yテーブル、11はX−Yテーブルを
制御するテーブル制御ユニット、20a、20bはガル
バノミラー、21はガルバノミラーを制御するガルバノ
制御ユニット、30はレーザ発振器、31はレーザ発振
器を制御するレーザ制御ユニット、40はカメラであ
る。 【0010】図1及び図2を用いて、本発明のプリント
基板用レーザ穴明け機の制御方法を説明する。図1は、
プリント基板上の設計上の穴位置データ101から、テ
ーブル移動データ102とガルバノ移動データ103に
変換し、レーザ加工プログラム104が作成されるよう
すを示す。ここで、テーブル移動データ102及びガル
バノ移動データ103は穴の設計上の数値で行うので、
同一設計のプリント基板に対しては一度作成すれば全て
のプリント基板に使用できるものである。このデータ変
換方法は、特開2000−343260号公報等に開示
されている。 【0011】このテーブル移動データ102及びガルバ
ノ移動データ103の前に、カメラ40で測定した位置
基準マーク2の位置データ100を付け加えてレーザ加
工プログラムが完成し、それをハードディスク等の記憶
装置に記憶する。このレーザ加工プログラム104の1
行を1命令単位と呼ぶ。 【0012】図2は、レーザ加工プログラム104から
実際の加工までの処理方法を示す。 【0013】(第1処理)まず最初に、レーザ加工プロ
グラム104から位置基準マークの位置データ100を
読み込み、X方向のずれ量、Y方向のずれ量、基板の伸
縮量、回転量等の誤差を補正するための補正量を算出す
る。 【0014】(第2処理)その後、まずハードディスク
等に記憶されたレーザ加工プログラム104からバッフ
ァメモリ(図示せず。)に数十〜数千の命令単位を読み
込む。このバッファメモリから1命令単位ずつ読み込
み、この1命令がテーブル移動データ102ならば先に
算出した補正量によりX−Yテーブルを駆動するための
テーブルデータを作成する。 【0015】(第3処理)テーブルデータ作成終了後、
作成したテーブルデータによりテーブル駆動を行う。 【0016】(第4処理)次に、レーザ加工プログラム
104の一部を読み込んだバッファメモリから1命令単
位を読み込み、この1命令がガルバノ移動データ103
ならば先に算出した補正量によりガルバノミラーを駆動
するためのガルバノデータを作成する。 【0017】(第5処理)加工条件よりレーザデータを
作成する。 【0018】(第6処理)ガルバノデータ、レーザデー
タ作成終了後、作成したガルバノデータにより、ガルバ
ノ駆動を行う。 【0019】(第7処理)ガルバノミラー停止後の順序
動作でレーザ発振を行う。 【0020】ここで、第3処理(テーブル駆動)、第6
処理(ガルバノ駆動)、又は第7処理(レーザ発振)を
行なっている間に、バッファメモリから次の1命令単位
を読み込み、第2処理(テーブルデータ作成)、第4処
理(ガルバノデータ作成)、又は第5処理(レーザデー
タ作成)を行うことにより、前の穴に関する第7処理
(レーザ発振)終了後、間を置かずに次の穴の第3処理
(テーブル駆動)、及び第6処理(ガルバノ駆動)を行
うことが可能になる。 【0021】このように、1命令単位毎に補正処理し、
次のデータを空き時間に処理することにより、プリント
基板上の設計上の穴位置データ101から作成した、テ
ーブル移動データ102とガルバノ移動データ103を
用いて加工を進めることができるので、プリント基板毎
に駆動用データを作成する必要がなくなり、加工の高速
化を図ることができる。 【0022】 【発明の効果】明けるべき穴のプリント基板上の座標デ
ータから予め設計上のテーブル移動データ、ガルバノ移
動データに変換したレーザ加工プログラムを作成し、プ
リント基板の位置基準マークを読み取って歪みや回転を
補正する補正量を算出し、この補正量を用いてレーザ加
工プログラムの1命令単位毎に補正し、X−Yテーブ
ル、ガルバノミラー、レーザ発振源を駆動して実際の穴
明け加工を行うので、プリント基板毎に駆動用データを
作成する必要がなくなり、加工の高速化を図ることがで
きる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for a laser processing machine for drilling printed circuit boards. In recent years, printed circuit boards that are often used as substrates for mobile phones and PCs are required to be smaller and more integrated year by year, and a single printed circuit board is manufactured as a master disk. A method of cutting out a printed circuit board has come to be taken. For this reason, the number of holes that can be opened on a printed circuit board has increased dramatically. Recently, it is necessary to open more than 100,000 holes at a time. Therefore, in order to speed up the processing by the printed circuit board drilling laser processing machine,
Corrects distortion and rotation of the printed circuit board placed on the Y table at high speed, galvanometer mirror, XY table,
In addition, it is necessary to perform drive control of the laser oscillation source. As such a drive control method, for example, as described in Japanese Patent No. 3126316, the following control method has been proposed. The position reference mark formed on the printed circuit board is read with a camera to correct the distortion and rotation of the printed circuit board, and the amount of correction for correcting the measured distortion and rotation is calculated. The coordinate data is arithmetically corrected to coordinate data on the actual XY table (hereinafter referred to as actual machining data) using this correction amount. From this actual machining data, galvano data for driving the galvanometer mirror, XY
Driving data consisting of table data for driving the table and laser data at the timing of oscillating the laser oscillation source is calculated for all the machining holes, and the driving data relating to all the machining holes is stored in the storage unit. Based on the stored drive data, the galvanometer mirror, X-
The Y table and the laser oscillation source are driven to perform actual drilling. SUMMARY OF THE INVENTION Driving data comprising galvano data for driving a galvano mirror, table data for driving an XY table, and laser data at a timing for oscillating a laser oscillation source. Must be created for each printed circuit board before starting processing, and when the number of holes is large, an operation that requires time is required for each printed circuit board. Therefore, an object of the present invention is to shorten the calculation time before the start of machining. In a control method of a laser processing machine for drilling a printed board with a laser, the table movement data on the design, galvano from the coordinate data on the printed board of the hole to be drilled. A laser processing program converted into movement data is created, a position reference mark on the printed circuit board is read, a correction amount for correcting distortion and rotation is calculated, and the laser processing program 1 is calculated using this correction amount.
It is solved by making a control method for a laser drilling machine for printed circuit board drilling, which corrects each command unit and drives the XY table, galvanometer mirror, laser oscillation source to perform actual drilling. it can. That is, while the XY table and the galvanometer mirror are being driven, an idle time is generated between when the drive command is issued and when the drive is completed. Therefore, a laser processing program is created by converting the coordinate data of the hole to be opened on the printed circuit board into the design table movement data and galvano movement data in advance. A correction amount for each printed circuit board is calculated by reading a position reference mark provided on the circuit board, and galvano data for driving the galvano mirror and table data for driving the XY table using this free time. Is corrected individually, and laser data is generated at a timing for oscillating the laser oscillator, thereby shortening the processing time. Here, the table movement data and the galvano movement data of the laser processing program are performed with numerical values in the design of the hole, so that once the same design printed circuit board is created, it can be used for all printed circuit boards. DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a schematic configuration diagram of a laser processing machine for drilling a printed circuit board according to the present invention. Here, 1 is a printed circuit board, 10a is a Y table on which the printed circuit board is placed, 10b is an X table (hereinafter collectively referred to as the XY table 10), 20a and 20b are galvanometer mirrors, 30 is a laser oscillator, and 40 is A camera 200 for measuring the position of the position reference mark, and an NC device for controlling the drilling laser beam machine. FIG. 4 is a detailed view of the galvanometer mirror section and the XY table section. 1 is a printed circuit board, 2 is a position reference mark, 10 is an XY table, 11 is a table control unit for controlling the XY table, 20a and 20b are galvanometer mirrors, 21 is a galvano control unit for controlling galvanometer mirrors, 30 Is a laser oscillator, 31 is a laser control unit for controlling the laser oscillator, and 40 is a camera. A control method for a laser drilling machine for printed circuit boards according to the present invention will be described with reference to FIGS. FIG.
It shows that the laser processing program 104 is created by converting the design hole position data 101 on the printed circuit board into table movement data 102 and galvano movement data 103. Here, the table movement data 102 and the galvano movement data 103 are numerical values in the hole design,
Once a printed circuit board with the same design is created, it can be used for all printed circuit boards. This data conversion method is disclosed in Japanese Patent Laid-Open No. 2000-343260. Before the table movement data 102 and galvano movement data 103, the position data 100 of the position reference mark 2 measured by the camera 40 is added to complete the laser processing program, which is stored in a storage device such as a hard disk. . 1 of this laser processing program 104
A line is called one instruction unit. FIG. 2 shows a processing method from the laser processing program 104 to the actual processing. (First Process) First, the position reference mark position data 100 is read from the laser processing program 104, and errors such as the amount of deviation in the X direction, the amount of deviation in the Y direction, the amount of expansion / contraction of the substrate, the amount of rotation and the like are detected. A correction amount for correction is calculated. (Second Process) Thereafter, several tens to thousands of instruction units are first read from a laser processing program 104 stored in a hard disk or the like into a buffer memory (not shown). If one instruction is read from the buffer memory one by one, and this one instruction is the table movement data 102, table data for driving the XY table is created with the previously calculated correction amount. (Third processing) After the creation of the table data,
The table is driven by the created table data. (Fourth Process) Next, one instruction unit is read from the buffer memory from which a part of the laser machining program 104 has been read.
Then, the galvano data for driving the galvanometer mirror is created with the previously calculated correction amount. (Fifth Process) Laser data is created from the processing conditions. (Sixth Process) After the galvano data and laser data are created, galvano driving is performed using the created galvano data. (Seventh Process) Laser oscillation is performed in the sequential operation after the galvanometer mirror is stopped. Here, the third process (table driving), the sixth
While performing the process (galvano drive) or the seventh process (laser oscillation), the next one instruction unit is read from the buffer memory, the second process (table data creation), the fourth process (galvano data creation), Alternatively, by performing the fifth process (laser data creation), after the seventh process (laser oscillation) related to the previous hole is completed, the third process (table drive) and the sixth process (next drive) of the next hole are not performed. Galvano drive) can be performed. Thus, correction processing is performed for each instruction unit,
By processing the next data in the idle time, processing can be performed using the table movement data 102 and the galvano movement data 103 created from the designed hole position data 101 on the printed circuit board. In addition, it is not necessary to create driving data, and the processing speed can be increased. According to the present invention, a laser processing program in which the coordinate data of the hole to be opened on the printed board is converted in advance into the table movement data and galvano movement data in the design is created, and the position reference mark on the printed board is read to obtain distortion. A correction amount for correcting the rotation and rotation is calculated. Using this correction amount, correction is performed for each instruction unit of the laser processing program, and the XY table, galvanometer mirror, and laser oscillation source are driven to perform actual drilling processing. Therefore, it is not necessary to create drive data for each printed circuit board, and the processing speed can be increased.

【図面の簡単な説明】 【図1】本発明のプリント基板用レーザ穴明け機の制御
方法に係るレーザ加工プログラムの作成方法 【図2】本発明に係るレーザ加工プログラムから実際の
加工までの処理方法 【図3】本発明に係るプリント基板穴明け用レーザ加工
機の概略構成図 【図4】ガルバノミラー部とX−Yテーブル部の詳細図 【符号の説明】 1・・・プリント基板 2・・・位置基準マーク 10・・・X−Yテーブル 11・・・テーブル制御ユニット 20・・・ガルバノミラー 21・・・ガルバノ制御ユニット 30・・・レーザ発振源 31・・・レーザ制御ユニット 40・・・カメラ 100・・・位置基準マークの位置データ 101・・・穴位置データ 102・・・テーブル移動データ 103・・・ガルバノ移動データ 104・・・レーザ加工プログラム 200・・・NC装置
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a method for creating a laser machining program according to a method for controlling a laser drilling machine for printed circuit boards according to the present invention. FIG. 2 is a process from the laser machining program according to the present invention to actual machining. Method FIG. 3 is a schematic configuration diagram of a laser processing machine for drilling a printed circuit board according to the present invention. FIG. 4 is a detailed view of a galvanomirror section and an XY table section. Position reference mark 10 XY table 11 Table control unit 20 Galvano mirror 21 Galvano control unit 30 Laser oscillation source 31 Laser control unit 40 Camera 100: Position reference mark position data 101 ... Hole position data 102 ... Table movement data 103 ... Galvano movement data 104 ... Laser addition Program 200 ··· NC apparatus

Claims (1)

【特許請求の範囲】 【請求項1】プリント基板にレーザで穴明け加工を行う
レーザ加工機の制御方法において、明けるべき穴のプリ
ント基板上の座標データから予め設計上のテーブル移動
データ、ガルバノ移動データに変換したレーザ加工プロ
グラムを作成し、プリント基板の位置基準マークを読み
取って歪みや回転を補正する補正量を算出し、この補正
量を用いてレーザ加工プログラムの1命令単位毎に補正
し、X−Yテーブル、ガルバノミラー、レーザ発振源を
駆動して実際の穴明け加工を行うことを特徴とするプリ
ント基板穴明け用レーザ加工機の制御方法。
What is claimed is: 1. In a control method of a laser processing machine for drilling a printed circuit board with a laser, the design table movement data and galvano movement are previously determined from the coordinate data on the printed circuit board of the hole to be drilled. Create a laser processing program converted to data, calculate the correction amount to correct distortion and rotation by reading the position reference mark of the printed circuit board, and use this correction amount to correct for each instruction unit of the laser processing program, A method for controlling a laser drilling machine for drilling a printed circuit board, wherein an actual drilling process is performed by driving an XY table, a galvanometer mirror, and a laser oscillation source.
JP2002150995A 2002-05-24 2002-05-24 Control method of laser beam machine for printed circuit board drilling Expired - Lifetime JP4143334B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002150995A JP4143334B2 (en) 2002-05-24 2002-05-24 Control method of laser beam machine for printed circuit board drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002150995A JP4143334B2 (en) 2002-05-24 2002-05-24 Control method of laser beam machine for printed circuit board drilling

Publications (2)

Publication Number Publication Date
JP2003340586A true JP2003340586A (en) 2003-12-02
JP4143334B2 JP4143334B2 (en) 2008-09-03

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Cited By (6)

* Cited by examiner, † Cited by third party
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JP2006255761A (en) * 2005-03-18 2006-09-28 Disco Abrasive Syst Ltd Laser beam machining apparatus
JP2006263763A (en) * 2005-03-23 2006-10-05 Disco Abrasive Syst Ltd Laser beam machine
JP2006338165A (en) * 2005-05-31 2006-12-14 Hitachi Via Mechanics Ltd Machine tool operating method and operating device
JP2008221301A (en) * 2007-03-14 2008-09-25 Hitachi Via Mechanics Ltd Printed board working machine
US7834293B2 (en) * 2006-05-02 2010-11-16 Electro Scientific Industries, Inc. Method and apparatus for laser processing
KR101293210B1 (en) * 2010-12-15 2013-08-05 주식회사 엘지화학 Method and apparatus for forming hole of polarizing plate for display device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006255761A (en) * 2005-03-18 2006-09-28 Disco Abrasive Syst Ltd Laser beam machining apparatus
JP4664713B2 (en) * 2005-03-18 2011-04-06 株式会社ディスコ Laser processing equipment
JP2006263763A (en) * 2005-03-23 2006-10-05 Disco Abrasive Syst Ltd Laser beam machine
JP2006338165A (en) * 2005-05-31 2006-12-14 Hitachi Via Mechanics Ltd Machine tool operating method and operating device
US7834293B2 (en) * 2006-05-02 2010-11-16 Electro Scientific Industries, Inc. Method and apparatus for laser processing
JP2008221301A (en) * 2007-03-14 2008-09-25 Hitachi Via Mechanics Ltd Printed board working machine
KR101293210B1 (en) * 2010-12-15 2013-08-05 주식회사 엘지화학 Method and apparatus for forming hole of polarizing plate for display device

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