charge and electron unit

The characteristic and requirement of the soldering fluxes for lead-free solders in microelectronics assembly were described in detail.

概述了世界电子产品的无铅化趋势及相关立法,比较了世界各国及地区的助焊剂专利文献,分析了助焊剂的研究进展状况,着重论述了微电子组装中无铅钎料专用助焊剂的特点和要求,并提出了开发和研究无铅钎料专用环保型助焊剂需要解决的一些关键问题。

Foundation of Electronics Assembly is a technology foundation course which studies the technology and equipments of electronics assembly.

电子组装基础是一门研究电子组装技术、设备等内容的基础性课程,该课程知识面宽、知识点新、查找资料困难。

The high density of electronics assembly has already bring up the new challenge to conventional wave soldering technology.

电子组装的高密度给传统波峰焊接技术提出了新挑战。

Research development of high temperature lead-free solders for electronic assembly

电子组装用高温无铅钎料的研究进展

The article takes the author s experience as a example,introduces some sample techniques about CAD/CAM software applied in electronic assembly.

本文以作者的经验为例,介绍了CAD/CAM软件在电子组装领域中的一些应用技巧实例,希望能对相关技术人员有所帮助。

It is a key step for successful accomplishing the task on missile training simulation system to develop the embedded electric component on this system.

设计开发“导弹模拟系统嵌入式电子组件”是成功完成某型产品训练模拟系统研制任务的一项核心环节。

Selection of Solder Paste in Electronic Assembly

电子组装中无铅焊膏的选择(续完)

Choice of Soldering Equipment in Electronic Assembly

电子组装中焊接设备的选择(续完)

Research development of high temperature lead-free solders for electronic assembly

电子组装用高温无铅钎料的研究进展

Large Area Hybrid--An Advanced Microelectronic Packaging Concept

大面积混合电路——一种先进的微电子组装概念

Study on Long Term Reliabilty of ECA for Microelectronic Package;

微电子组装用导电胶长期可靠性的研究

Analysis of Design of Mixed-Signal Electronic Packaging; Final rept. 15 Mar 1996-31 Dec 1998

关于混合信号电子组装设计的分析/最终报告

Study on the Lead-Free Solder Paste Prepared by Mechanical Alloying in SMT;

电子组装膏状钎料机械合金化制备及研究

The Research on Reliability and Pb Contamination of Microelectronic Assembly Solder Joints;

微电子组装焊点可靠性及其铅污染问题的研究

microelectronic modular assembly

微电子学微型组件装置

packaging and construction of electronic equipment

电子设备组装与结构

The Application of ROBOT Control Technology at the Assembly of Electronic Products

ROBOT控制技术在电子产品组装上的应用

The Lift-on Scheme and Improvement of 600MW Generating Set Stator in Zhangjian Electric Plant;

湛江电厂600MW发电机组定子吊装方案及改进

Preparation and Electrochemical Application of Supermolecule Self-assembled Modified Electrode

超分子自组装膜修饰电极的制备及电化学应用

Selection of Hanging Plan for Generator Stator of 600MW Thermal Power Unit

600MW火电机组发电机定子吊装方案的选择

Fabrication of Single Proton Exchange Membrane Fuel Cell and Conductivity Measurement of the Membrane Electrolyte

质子交换膜燃料电池单电池的组装及膜电解质电导率的测定

A self-contained assembly of electronic components and circuitry, such as a stage in a computer, that is installed as a unit.

微型组件一组装在一起的电子元件或电路，作为一个单元被安装，如计算机中的一个装配步骤

upside-down mounting

倒装法 -集成电路组装的

(electronics) consisting of semiconductor materials and components and related devices.

（电子学）由半导体材料、成份和相关装置所组成的。