Title:
ELECTRICALLY CONDUCTIVE SHEET AND PROCESS FOR PRODUCING SAME, AND ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2012/164925
Kind Code:
A1
Abstract:
Provided are: an electrically conductive sheet having good processability, whereby it becomes possible to minimize the leaching of an electrically conductive layer in a hot-pressing step for adhering the electrically conductive sheet onto an object of interest, such as a printed wiring board; a process for producing the electrically conductive sheet; and others.
This electrically conductive sheet involves an electrically conductive layer comprising at least a heat-curable resin (A) and dendritic electrically conductive microparticles (B). The thickness of the electrically conductive layer fulfills the following requirement (i) and/or (ii): (i) the thickness of the electrically conductive layer becomes 30-95 after being hot-pressed under the conditions of 150ºC, 2 MPa and 30 minutes when the thickness of the electrically conductive layer before the hot-pressing is defined as 100; and (ii) the average particle diameter (D90) of the dendritic electrically conductive microparticles (B) becomes 0.5-3 times the thickness of the electrically conductive layer. The dendritic electrically conductive microparticles (B) have an average particle diameter (D50) of 3-50 μm inclusive and are contained in an amount of 50-90 wt% inclusive in the electrically conductive layer.
Inventors:
NISHIYAMA YUJI (JP)
TOMINAGA HIROSHI (JP)
FURUKAWA KUNIHIRO (JP)
KOBAYASHI HIDENOBU (JP)
MATSUDO KAZUNORI (JP)
MATSUZAWA TAKAHIRO (JP)
JUN SEI (JP)
TOMINAGA HIROSHI (JP)
FURUKAWA KUNIHIRO (JP)
KOBAYASHI HIDENOBU (JP)
MATSUDO KAZUNORI (JP)
MATSUZAWA TAKAHIRO (JP)
JUN SEI (JP)
Application Number:
PCT/JP2012/003541
Publication Date:
December 06, 2012
Filing Date:
May 30, 2012
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
NISHIYAMA YUJI (JP)
TOMINAGA HIROSHI (JP)
FURUKAWA KUNIHIRO (JP)
KOBAYASHI HIDENOBU (JP)
MATSUDO KAZUNORI (JP)
MATSUZAWA TAKAHIRO (JP)
JUN SEI (JP)
NISHIYAMA YUJI (JP)
TOMINAGA HIROSHI (JP)
FURUKAWA KUNIHIRO (JP)
KOBAYASHI HIDENOBU (JP)
MATSUDO KAZUNORI (JP)
MATSUZAWA TAKAHIRO (JP)
JUN SEI (JP)
International Classes:
H01B5/16; B32B27/18; C09J7/10; C09J9/02; C09J11/04; C09J201/10; H05K9/00
Foreign References:
| JPH08199109A | 1996-08-06 | |||
| JPS6167702A | 1986-04-07 | |||
| JP2005236153A | 2005-09-02 | |||
| JP2004297005A | 2004-10-21 | |||
| JP2006269977A | 2006-10-05 | |||
| JPH07282623A | 1995-10-27 | |||
| JPH06140792A | 1994-05-20 |
Attorney, Agent or Firm:
IEIRI, Takeshi (JP)
House ON 健 (JP)
House ON 健 (JP)
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Claims: