COPPER FOIL WITH CARRIER SHEET, METHOD FOR MANUFACTURING COPPER FOIL WITH CARRIER SHEET, SURFACE-TREATED COPPER FOIL WITH CARRIER SHEET AND COPPER-CLAD LAMINATE USING THE SURFACE-TREATED COPPER FOIL WITH CARRIER SHEET

摘要

COPPER FOIL WITH CARRIER SHEET, METHOD FOR MANUFACTURING COPPER FOIL WITH CARRIER SHEET, SURFACE-TREATED COPPER FOIL 5 WITH CARRIER SHEET AND COPPER-CLAD LAMINATE USING THE SURFACE-TREATED COPPER FOIL WITH CARRIER SHEET AN OBJECT OF THE PRESENT INVENTION IS TO PROVIDE A COPPER FOIL WITH CARRIER SHEET WHICH PERMITS RELEASING OF 10 THE CARRIER SHEET FROM THE COPPER FOIL LAYER EVEN WHEN HOT PRESSING AT A TEMPERATURE EXCEEDING 300'C IS APPLIED IN THE PRODUCTION OF A PRINTED WIRING BOARD. IN ORDER TO ACHIEVE THE OBJECT, A COPPER FOIL WITH PHYSICALLY RELEASABLE CARRIER SHEET HAVING A COPPER FOIL LAYER ON 15 THE SURFACE OF THE CARRIER SHEET THROUGH A BONDING INTERFACE LAYER, CHARACTERIZED IN THAT THE BONDING INTERFACE LAYER IS COMPOSED OF A METAL LAYER AND A CARBON LAYER. IT IS PREFERABLE FOR THE BONDING INTERFACE LAYER TO BE COMPOSED OF A METAL LAYER OF 1 NM TO 50 NM THICK 20 AND A CARBON LAYER OF 1 NM TO 20 NM THICK.