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- The results show that the residual moisture within underfill materials enhances the stress level in solder joint. 结果表明:在湿热环境下,底充胶材料内部残留的湿气提高了焊点的应力水平。
- No-flow underfill materials that cure during the solder reflow process is a relatively new technology. 在精细金属线条的连铸过程中,影响铸件品质的因素很多,所以有必要对不同的操作条件作影响评估。
- This thesis is focus on the problem of warpage in flip-chip package due to the CTE mismatch between die, substrate, and bump using various underfill materials. 中文摘要本论文针对覆晶封装制程中,因为晶片、基板、凸块和底胶材料都之不同,当温度变化时,所产生的热膨胀效应使得整个封装出现翘曲变形的现象。
- The results show that,in the mechanical bend fatigue test and three point bend test,the underfill material of U1 and U2 both can improve the mechanical bend reliability of BGA assemblies,and U1 material performs better. 结果发现在机械弯曲可靠性试验中,U1、U2材料的填充均能提高焊点的机械弯曲可靠性,并且U1的效果更好。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Keywords: flip-chip technology;solder joint reliability;FEM;solder joint height;underfill materials; strain;stress 关键词:倒装焊技术;焊点可靠性;有限元法;焊点高度;下填料;应变;应力
- The beautiful curtain is made of remnant materials. 这个漂亮的窗帘是用零头布做的。
- Some synthetic materials do not crush easily. 有些化纤衣料不易起皱。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
- He buys the materials wholesale. 他成批地购买原材料。
- He is collecting materials for a book. 他正在为写书搜集素材。
- Building materials are expensive. 建筑材料很昂贵。
- A bin for storing ore, grain, or other materials. 仓库储放矿石、谷物或其它材料的大箱
- He is gathering materials for a new book. 他正在收集资料准备写一本新书。
- Environmentalists are keen on degradable materials. 环保分子特别喜爱能够自然分解的材料。
- Recycled materials are mostly of limited use. 再生材料大多用途有限。
- Thermal Cycle Failure of SnPb Solder Joint for Flip Chip Package and Effects of Underfill Material 倒装焊SnPb焊点热循环失效和底充胶的影响
- All the raw materials are imported. 所有原料都是进口的。
- underfill materials; 下填料;
- underfill materials 底部填充料