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產品資料

千住低銀錫膏

如果您對該產品感興趣的話,可以
產品名稱: 千住低銀錫膏
產品型號: M40-LS720
產品展商: 千住金屬
產品文檔: 無相關文檔

簡單介紹

錫、銀1.0、銅0.7、鉍1.6、銦0.2###熔點:211-222℃###粘度:170-210Pa.s###232-255℃###用于替代M705合金的錫膏###0-10℃


千住低銀錫膏  的詳細介紹
千住低銀錫膏M40-LS720
一.產品介紹
ECO SOLDER PASTE M40-LS720是為了實現SMT實裝的低成本化進而開發出含銀量1%的錫膏是擁有優越的價格競爭性的次世代錫膏產品。以往,低銀錫膏伴會隨著銀含量下降,使得錫膏融點上升及耐熱疲勞性下降等特性變化。成為了在表面實裝(SMT)導入的障礙。M40-LS720從合金及FLUX的研發設計上從兩方面克服上述課題,而且和業界標準合金組成品Sn-3.0Ag-0.5Cu(本社型號M705)作比較,不僅可抑制材料成本且也兼具與SAC305合金同等以上的作業性及長期信賴性錫膏。
二.M40-LS720特點
1.優越的價格競爭性
2.雖然是低銀錫膏、但有確保和早期產品M705制品相同作業性及爬錫性
3.克服低銀錫膏的弱點-耐熱疲勞性低下
4.抑制BGA吃錫不佳(融合不佳)、立碑現象
5.抑制Reflow后的錫膏表面光澤、提高外觀檢查便利性
三.M40-LS720與M705-GRN360-K2-V合金特性對比
合金名稱
M40
M705
合金組成
Sn-1.0Ag-0.7Cu-Bi-In (注2)
Sn-3.0Ag-0.5Cu
溶融溫度(℃)
固相線
211
217
溶融Peak
①215 ②222
219
液相線
222
219
拉伸強度(MPa)
59.4
47.8
延伸(%)
62.8
79.8
Poisson比
0.35
0.35
線膨漲系數
21.3
21.7
磚利
JP3753168
JP3027441
四.錫膏粉末粒徑
Type4: 25 ~ 36um
Type3: 25 ~ 45um
 
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