Title:
COPPER FOIL WITH CARRIER, LAMINATE, PRODUCTION METHOD OF LAMINATE, PRODUCTION METHOD OF PRINTED CIRCUIT BOARD, AND PRODUCTION METHOD OF ELECTRONIC DEVICE
Document Type and Number:
Japanese Patent JP2018111850
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a copper foil with a carrier that has both a good laser drilling property and a good circuit formation property.SOLUTION: A copper foil with a carrier has a carrier, an intermediate layer, and an ultra-thin copper layer in this order. To stick them together, the copper foil with a carrier is pressed with heat from the ultra-thin copper layer side to a bismaleimide-triazine resin substrate under the condition of a pressure of 20 kgf/cm, 220°C, and 2 hours. After that, when the carrier is peeled off from the ultra-thin copper layer, the copper foil with a carrier has the following properties: (1) on the carrier-side surface of the ultra-thin copper layer, an average value between a glossiness GMD in a MD direction and a glossiness GTD in a TD direction is 390 or less, and a smaller value between the glossiness GMD in the MD direction and the glossiness GTD in the TD direction is 40 or more; and (2) on the surface of the ultra-thin copper layer side of the carrier, a smaller value between a glossiness GMD in the MD direction and a glossiness GTD in the TD direction is 0.4 or more, and a larger value between the glossiness GMD in the MD direction and the glossiness GTD in the TD direction is 1.0 or less.SELECTED DRAWING: Figure 1
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Inventors:
MIYAMOTO NOBUAKI
Application Number:
JP2017002173A
Publication Date:
July 19, 2018
Filing Date:
January 10, 2017
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP
International Classes:
C25D1/04; B32B15/08; C23F1/00; C25D7/06; H05K1/09
Domestic Patent References:
| JP2015227502A | 2015-12-17 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation