Title:
COPPER OR COPPER ALLOY STRIPE FOR VAPOR CHAMBER
Document Type and Number:
Japanese Patent JP2017180967
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a copper or copper alloy stripe for a vapor chamber in which a high connection strength can be attained after connection work and a warp after etching can be restricted when an upper plate member and a lower plate member are connected through dispersion connection or brazing to manufacture a casing under application of a copper or copper alloy stripe as raw material for the casing for the vapor chamber [a flat plate-like heat pipe].SOLUTION: When an upper member 2 and a lower member 3 of a vapor chamber are connected, a maximum height roughness Rz at a surface of copper or copper alloy stripe is 1.5 μm or less, an arithmetic average roughness Ra is 0.15 μm or less and a residual stress is 50 MPa or less. It is preferable that L warp amount is 30 mm or less per 500 mm of a rolled direction length and C warp amount is 2/100 or less with a ratio d/w between [d] of a warp amount and [w] of a coil width.SELECTED DRAWING: Figure 1
Inventors:
HASHIMOTO DAISUKE
NISHIMURA MASAYASU
NISHIMURA MASAYASU
Application Number:
JP2016069416A
Publication Date:
October 05, 2017
Filing Date:
March 30, 2016
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
F28D15/02; B23K1/00; B23K1/19; F28F21/08; H01L23/427
Domestic Patent References:
| JP2002221398A | 2002-08-09 | |||
| JPH093571A | 1997-01-07 | |||
| JP2015113487A | 2015-06-22 | |||
| JP2015034336A | 2015-02-19 | |||
| JP2014019892A | 2014-02-03 | |||
| JP2003294386A | 2003-10-15 | |||
| JP2003027248A | 2003-01-29 | |||
| JP2001074381A | 2001-03-23 |
Foreign References:
| WO2015146981A1 | 2015-10-01 |
Attorney, Agent or Firm:
Kaoru Kamoto