查询词典 solder

The joining material may be a solder paste, the substrate may be a semiconductor chip substrate, a computer chip. The process may be used to produce flip chips, ball grid array modules, column grid array modules, circuit boards, and attachment structures of the preceding components including information handling systems.

连接材料可以是焊剂糊料，基片可以是半导体芯片基片，计算机芯片，本方法可用于制造倒装式芯片、球粒格网阵列式模块、柱形件格网阵列式模块、电路板、以及包括信息管理系统的上述元件的附着结构。

When electromigration is combined with thermomigration in flip chip solder joints, fast failure due to large void formation at the cathode and the hot end occurs.

所以我们不可以忽略热迁移的效用。

In order to improve the performance of Automatic Optical Inspection system,an illuminator for leadless tin solder joint inspection was studied.

为了提高自动光学检查系统的性能，对AOI光源进行了研究。

Production of liquid PCB Solder Mask Photographic Ink, 300 of ink-resistant cooking, the blessing of the super-Alcohol-resistant plastic sheet and India ink, such as cooking by the National Science and Technology as a national Torch Program projects, state-level new products.

生产的PCB液态感光阻焊油墨、300型耐蒸煮复合油墨、超力福醇溶塑料耐蒸煮表印油墨等被国家科技部列为国家级火炬计划项目、国家级新产品。

The main products are:"Oriental card" series of food and medicine packaging inks, building materials and industrial packaging ink, cigarette packets and paper products packaging ink, wire and cable superscript and India ink,"Hua card" series of flexible packaging polyurethane Adhesives;"Shinhan licensing" PCB Solder Mask photosensitive liquid polymer shielding materials such as the three major series of more than 60 varieties.

主要产品有："东方牌"系列食品及药品包装用油墨、工业及建材包装用油墨、烟包及纸品包装用油墨、电线电缆标印油墨；"华光牌"系列软包装复合用聚氨酯胶粘剂；"新韩牌"PCB液态感光阻焊高分子屏蔽材料等三大系列六十多个品种。

The interfacial reactions and reliability of lead-free solder joints are systematically investigated in this thesis.

本文对无铅电子封装中的界面反应和焊点可靠性进行了系统的研究。

Solder balls (50) are then placed on the metal pad openings on the interposer substrate and are reflowed to form a wafer-level BGA structure.

焊球(50)然后被置于插入器衬底上的金属焊盘开孔上并将之反流以形成一圆片面BGA衬底。

The measurement and control system of the tiered twister based on Modbus protocol adopts mainline structure, serial parallel communicating by RS-485. The intertwist precision of the solder wire and the automation degree are improved by network real time precision control.

基于Modbus协议的层绕机测控系统采用总线结构，RS-485串行总线通信，通过网络实时精确控制，提高了缠绕精度和自动化程度。

Experimental results indicate that the addition of Lanthanum can evidently improve the wettability and the microhardness of Ag-Cu-Ti solder alloy.

实验结果表明，添加一定量的稀土元素镧对Ag-Cu-Ti钎料合金的熔化温度无明显影响，但可显著提高钎料合金的润湿性能和显微硬度。

People has been committed to hunting for the alternative leadless products of lead solders, and found that the lead-free solder joints often display some special defects in the long-term use of them. The serious lift-off phenomenon has gradually aroused people's attention.

人们致力于寻求含铅钎料的无铅替代产品，并在长期使用过程中发现无铅钎料焊点会产生某些特殊的缺陷，其中较为严重的剥离现象也逐渐引起人们的重视。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。