エレクトロニクス実装学会誌 Vol. 8, No 3, 2005, 183-187 “微量元素を添加した産業用鉛フリーはんだ” 渡邉裕彦 The Lead-Free Solder of Addition Micro-Elements in Industrial Products Hirohiko WATANABE* 191-8502 * 1 * Production Technology Laboratory of Fuji Electric Co., Ltd. (1 Fuji-machi, Hino-shi, Tokyo 191-8502) 1. Sn–Pb Ag, Cu, Bi, Ni, Sb Sn–Ag–Cu 1) 2. Sn–Ag–Cu 1 Sn–Pb Sn–Ag–Cu Sn–Ag–Cu 3. Sn–Ag–Cu Ni Ge SnAg, SnAgCu, SnZn, SnAgBi Sn–Pb Sn–Pb Sn–Ag–Cu Sn–Pb Sn–Ag–Cu 1),2) 1. Sn–Pb °C Sn–Ag–Cu Sn–37Pb Sn–3.5Ag–0.5Cu –0.07Ni–0.01Ge Sn–3.0Ag–0.5Cu 183 217219 217221 Sn–Ag–Cu 0.2%/s Mpa 38 42 43 0.2%/s % 50 59 41 27 50 51 GPa ppm/°C 2124 22.3 21.7 W/m · K *1 54 62.4 60.1 3.1 3)5) Sn–Ag Vol. 8 No. 3 (2005) 183 3. 1. 4. 125°C SACNG SAC 2. 1 Sn–3.5Ag SA, Sn–3.0Ag–0.5Cu 3.5Ag–0.5Cu–0.07Ni–0.01Ge SABI Sn–37Pb SACNG, Sn–3.5Ag–0.5Bi–8.0In SP 0.2%/s SAC, Sn– 2 SA, SAC, SACNG SABI SnAg 2 Bi, In SACNG, SABI SP 5. Sn–Ag–Cu 3.2 5 MPa 2 SACNG SAC 3 3 Larson–Miller 60°C 5 24 5)7) 11 3 4 40°C, 75°C, 125°C 125°C SACNG 2 SAC 5 SACNG SACNG SACNG 2 Vol. 8 No. 3 (2005) SAC Sn–37Pb SAC SAC 9.8 MPa 184 C 6. 8. 2/3Fmax 10300.3 mm C1201P SP 7. SACNG FE-SAM 125°C1000 hr SACNG 11) 6.a) Ag3Sn SAC Cu6Sn5 Ag3Sn/Sn Sn SACNG 6.b) Ag3Sn 4. Sn–Ag–Cu–Ni–Ge 4.1 Ge Sn SAC MDW-120N2 SACNG 7 Ni 1 2 2 SAC SACNG Ag Ag Ag3Sn/Sn Sn 250°C Sn Sn SACNG Ni, Ge Sn 8)10) 3.3 1, 2, 4, 8 4 JIS Z3198 8 8 Vol. 8 No. 3 (2005) 185 2. (wt%) SAC Sn–3.0Ag–0.5Cu S30ACNG Sn–3.0Ag–0.5Cu–0.07Ni–0.01Ge S35ACNG Sn–3.5Ag–0.5Cu–0.07Ni–0.01Ge SP Sn–37Pb 9. 11. Sn Cu SACNG 4.2 4.2.1 2 FR-4 10. SACNG 1.0f mm t1.6 mm, T/H 1.8f mm 8 1.27 mm DIP-IC RMA 250°C10 sec 11 HL-200 0.1 g N15 9 SAC, SACNG SAC SACNG 8 1/2 120 SAC, SACNG SACNG Ag, Cu, Ni ICP Ge (4060) 1/4 10 SACNG Sn, Ag, Cu, Ni, Ge 4.2.2 Ge 12 SAC Ni, Ge SACNG SP Ge Ge Sn Cu Sn, Sn–2.5Ag, Sn–2Bi, Sn–10Pb 186 Vol. 8 No. 3 (2005) 4 2005.1.27- · 1 JEITA 2003 2 2004 3 2002 4 12. DIP-IC T. Takemoto, A. Matsunawa, M. Takahashi: “Tensile test for estimation of thermal fatigue properties of solder alloys”, Journal of Materials Science, Vol. 32, pp. 4077–4084, 1997 SAC, SACNG 5 SAC Sn–3.5Ag–xBi Sn–3.5Ag–xCu Mate2000 pp. 281–286, 2000 NiGe NiSn 6 Sn–Ag–Bi–In CuNiSn 12) b Sn Pb Mate1998 pp. Mate2005 pp. 249–252, 1998 7 5. 2002 SnAgCu Sn–3.0Ag– 0.5Cu SnAgCu 8 Ni, Ge 2000.9, Vol. 73, 2000 9 1 Ni, Ge Sn–Ag–Cu 171–176, 2005 10 Ni SnAg Ni/Au Au MATE2003 2 pp. 277–282, 2003 11 SACNG Ge SAC 2004.3, Vol. 77, 2004 Ge 12 Ni, Ge SnAgCu MJS-238-2004, pp. 47–55, 2004 3 SACNG SnAg Ag3Sn 6. Sn Sn SP Sn–Ag–Cu Vol. 8 No. 3 (2005) 187