New paradigms arise with destructive changes in beliefs about nature.
伴随新思维范式的崛起,是对自然的旧有信仰毁灭性改变。
---- Thomas Kuhn(托马斯.库恩)
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类别 Type |
项目分类 Project Classification |
项目名称 Project Name |
技术要求 Technical Requirement |
铜基 | 材料成分 Coating Composition |
成分 Component |
TU1 |
铜线电阻率 Resistivity |
≤1.7541*10-8Ωm | ||
焊料 |
材料成分 Coating Composition |
锡的成分 Tin(Sn) Composition |
65(±5) % |
铅的成分 Lead(Pb) Composition |
35(±5) % | ||
焊带 |
电性能 Performance |
电阻 Resistance |
≤85mΩ/m |
机械性能 Mechanical properties |
抗拉强度 Tensile strength |
≥ 140 Mpa | |
延伸率 Elongation |
≥20% | ||
屈服力 Yield Force |
≤20N | ||
屈服强度 Yield Strength |
≤65MPA | ||
尺寸 Size |
厚度 Thickness |
0.26(-0.005,+0.015)mm | |
宽度 Width |
1.0(±0.1)mm | ||
镀层厚度 Minimum Thickness |
14.0(±1)um | ||
变形量 Deformation |
镰刀弯 Curved sickle |
<5mm/m | |
花纹倾斜角度 Inclination angle |
75(±3)° | ||
外观 Appearance |
表面质量 Surface quality |
无漏铜,脱锡 No copper leaking and tin flaking |
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无黑斑、锈蚀、裂纹 No black spot, rust and cracks |
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无锡瘤,边缘无毛刺 No tin plump and burrs on the edge |