WO2008072930A3 - Sheets for drilling - Google Patents

Sheets for drilling Download PDF

Info

Publication number
WO2008072930A3
WO2008072930A3 PCT/KR2007/006545 KR2007006545W WO2008072930A3 WO 2008072930 A3 WO2008072930 A3 WO 2008072930A3 KR 2007006545 W KR2007006545 W KR 2007006545W WO 2008072930 A3 WO2008072930 A3 WO 2008072930A3
Authority
WO
WIPO (PCT)
Prior art keywords
drilling
sheet
drill
board
organic material
Prior art date
Application number
PCT/KR2007/006545
Other languages
French (fr)
Other versions
WO2008072930A2 (en
Inventor
Bu Jin Hong
Seung Bong Chae
Original Assignee
Bu Jin Hong
Seung Bong Chae
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
Priority claimed from KR1020060128336A external-priority patent/KR20080055264A/en
Priority claimed from KR1020070117892A external-priority patent/KR20080055627A/en
Application filed by Bu Jin Hong, Seung Bong Chae filed Critical Bu Jin Hong
Publication of WO2008072930A2 publication Critical patent/WO2008072930A2/en
Publication of WO2008072930A3 publication Critical patent/WO2008072930A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0011—Working of insulating substrates or insulating layers
    • H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
    • H05K3/0047—Drilling of holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B37/00—Boring by making use of ultrasonic energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/12—Cooling and lubrication
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
    • H05K2203/0214—Back-up or entry material, e.g. for mechanical drilling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/12—Using specific substances
    • H05K2203/127—Lubricants, e.g. during drilling of holes

Abstract

Disclosed is a sheet for drilling suitable for use as a cover sheet for efficiently realizing a high-quality product upon drilling in the process of fabricating a printed circuit board. In the sheet including an organic material layer for imparting a lubricating function and a metal layer in contact with the organic material layer, the surface of the metal layer opposite the surface in contact with the organic material layer is controlled to have tanθ of a predetermined value or more according to a slippage testing method. Thus, when the sheet is placed on a blank board during the drilling of a printed circuit board, it has increased adhesiveness to the board and therefore an air layer is not formed between the sheet for drilling and the board, thus preventing the slippage of a drill and decreasing the vibration thereof, resulting in improved drill straightness. Wear resistance of the drill is maintained, thus increasing the drill replacement period, thereby realizing high-quality sheets for drilling.
PCT/KR2007/006545 2006-12-15 2007-12-14 Sheets for drilling WO2008072930A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2006-0128336 2006-12-15
KR1020060128336A KR20080055264A (en) 2006-12-15 2006-12-15 Sheets for drilling
KR1020070117892A KR20080055627A (en) 2007-11-19 2007-11-19 Sheets for drilling
KR10-2007-0117892 2007-11-19

Publications (2)

Publication Number Publication Date
WO2008072930A2 WO2008072930A2 (en) 2008-06-19
WO2008072930A3 true WO2008072930A3 (en) 2009-09-11

Family

ID=39512202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/006545 WO2008072930A2 (en) 2006-12-15 2007-12-14 Sheets for drilling

Country Status (1)

Country Link
WO (1) WO2008072930A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114773980B (en) * 2022-04-28 2023-04-07 扬宣电子(清远)有限公司 PCB (printed Circuit Board) coated aluminum substrate and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470757A2 (en) * 1990-08-08 1992-02-12 Mitsubishi Gas Chemical Company, Inc. Method of drilling of through-holes in printed circuit board panels
JP2002154094A (en) * 2000-11-17 2002-05-28 Hitachi Chem Co Ltd Perforating sheet for laminated plate and perforating method for laminated plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470757A2 (en) * 1990-08-08 1992-02-12 Mitsubishi Gas Chemical Company, Inc. Method of drilling of through-holes in printed circuit board panels
JP2002154094A (en) * 2000-11-17 2002-05-28 Hitachi Chem Co Ltd Perforating sheet for laminated plate and perforating method for laminated plate

Also Published As

Publication number Publication date
WO2008072930A2 (en) 2008-06-19

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