JPS57186389A - Method of opening hole of printed board - Google Patents

Method of opening hole of printed board

Info

Publication number
JPS57186389A
JPS57186389A JP6944781A JP6944781A JPS57186389A JP S57186389 A JPS57186389 A JP S57186389A JP 6944781 A JP6944781 A JP 6944781A JP 6944781 A JP6944781 A JP 6944781A JP S57186389 A JPS57186389 A JP S57186389A
Authority
JP
Japan
Prior art keywords
printed board
opening hole
opening
hole
printed
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.)
Pending
Application number
JP6944781A
Other languages
Japanese (ja)
Inventor
Nobuaki Ooki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP6944781A priority Critical patent/JPS57186389A/en
Publication of JPS57186389A publication Critical patent/JPS57186389A/en
Pending legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
JP6944781A 1981-05-11 1981-05-11 Method of opening hole of printed board Pending JPS57186389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6944781A JPS57186389A (en) 1981-05-11 1981-05-11 Method of opening hole of printed board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6944781A JPS57186389A (en) 1981-05-11 1981-05-11 Method of opening hole of printed board

Publications (1)

Publication Number Publication Date
JPS57186389A true JPS57186389A (en) 1982-11-16

Family

ID=13402894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6944781A Pending JPS57186389A (en) 1981-05-11 1981-05-11 Method of opening hole of printed board

Country Status (1)

Country Link
JP (1) JPS57186389A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05285895A (en) * 1992-04-07 1993-11-02 Sakae Denshi Kogyo Kk Processing method of small diameter hole on substrate material
JP2011025399A (en) * 2009-06-23 2011-02-10 Hitachi Via Mechanics Ltd Method for boring printed circuit board

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5371268A (en) * 1976-12-07 1978-06-24 Fujitsu Ltd Method of perforating multilayer printed board
JPS556809A (en) * 1978-06-29 1980-01-18 Fujitsu Ltd Method of forming through hole at multiilayer printed circuit board by laser beam

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5371268A (en) * 1976-12-07 1978-06-24 Fujitsu Ltd Method of perforating multilayer printed board
JPS556809A (en) * 1978-06-29 1980-01-18 Fujitsu Ltd Method of forming through hole at multiilayer printed circuit board by laser beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05285895A (en) * 1992-04-07 1993-11-02 Sakae Denshi Kogyo Kk Processing method of small diameter hole on substrate material
JP2011025399A (en) * 2009-06-23 2011-02-10 Hitachi Via Mechanics Ltd Method for boring printed circuit board

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