Title:
PASTE FOR JOINING, JOINED BODY USING THE SAME, AND PRODUCTION METHOD OF JOINED BODY
Document Type and Number:
Japanese Patent JP2022039198
Kind Code:
A
Abstract:
To provide a paste for joining which has low viscosity, and with which a joined body excellent in coating adaptability, in viscosity stability over time, and in initial and after thermal cycle test joining strength can be formed.SOLUTION: A paste for joining contains metal particles (A) coated with an organic constituent (a), a dispersion medium (B) and a resin (C), and contains 0.015-1.4 mass% of the resin (C). In the metal particles (A), a particle size (d1) corresponding to 1% of cumulative particle diameter distribution is 30-200 nm, a particle size (d50) corresponding to 50% thereof is 100-350 nm, and a particle size (d99) corresponding to 99% thereof is 300-900 nm, an extrapolation ending temperature (Te) of an exothermic peak of the highest temperature side of the metal particles (A) measured by differential thermal analysis is 200-300°C, and when a mass of the metal particles (A) at an extrapolation starting temperature (Ts) of an exothermic peak of the lowest temperature side of the metal particles (A) is set to be 100 mass%, the mass reduction ratio of the metal particles (A) at Te is 0.2-5 mass%.SELECTED DRAWING: Figure 1
Inventors:
TANAKA NAOHIRO
UESUGI TAKAHIKO
UESUGI TAKAHIKO
Application Number:
JP2020144103A
Publication Date:
March 10, 2022
Filing Date:
August 28, 2020
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD
International Classes:
B22F1/102; B22F9/00; B22F1/16; B22F1/17; B22F3/02; B22F7/04; B32B7/12; B32B15/02; C09J9/02; C09J11/04; C09J11/06; C09J201/00