Eric Bogatin 上海信号完整性开讲
Eric要来上海讲课了，在其个人网站上就可以注册：[url]http://www.bethesignal.net/bogatin/pcb007-design-workshop-%E2%80%9Chighspeed-design-signal-integrity%E2%80%9D-p-445.html?cPath=112[/url]如下为上海课程的介绍：
If you deal with digital products operating at 50 MHz clock frequencies or above, you will face signal integrity problems. These arise when interconnects are not transparent to the signals and the decisions you make about interconnect design affect performance.
Register for this workshop.
In this all day workshop offered on March 17, I will present four different lectures about signal integrity.
The first lecture is about characteristic impedance. This is the most important property of all interconnects. If you are just starting out in signal integrity and are confused about what characteristic impedance really means, this lecture is for you.
The second lecture is about four design guidelines to follow which will help minimize signal integrity problems in your products. I won't have time to cover all the important design rules, but I will explore four very important ones in this lecture.
In the afternoon, the two lectures I present will be about S-parameters. This is a slightly more advanced topic. If you deal with signals above 500 MHz, you have probably encountered S-parameters. It is a concept from the microwave design world which has become critically important in high speed digital design.
Contained in the S-parameters of an interconnect are all of its important electrical properties. To know the S-parameters of an interconnect is to know everything about how an interconnect will behave. They are a very powerful tool to describe high speed interconnects such as circuit boards, connectors, IC packages and cables.
The first S-parameter lecture will be on single-ended S-parameters, important for less than 1 Gbps signals. This will be an important introduction to S-parameter concepts. If you are new to S-parameters, do not miss this lecture.
The last lecture of the day will be about differential S-parameters. This is critically important for all high speed serial links. If you deal with 1 Gbps or 10 Gbps signals, differential S-parameters are an important part of your design. I will introduce what they are, how to use them to describe differential pairs, and how to explore the important information they contain.
If you work in high speed design, these lectures will be important in helping you eliminate signal integrity problems right from the beginning. There will be something for every designer--from the beginner to the expert.
Detailed descriptions of each lecture follow:
Characteristic Impedance: The Foundations
Characteristic impedance is the most important term that describes the electrical performance of transmission lines. If you are confused about what it really means, this lecture is for you. We will start with the most essential principles of transmission lines and how to think about characteristic impedance. We will explore how design influences it and how you can optimize your circuit board stack up for a target value of characteristic impedance.
Four Habits of Highly Successful Board Designers
While there are many design rules to follow to eliminate signal integrity problems in your circuit board, we will explore four of the most important ones. We will look at each design rule, the problem they are trying to correct, why they fix the problem and a practical approach to apply them in your next design. When we use the same design rule over and over again, they become habits. In this lecture, the four habits we will consider are:
terminating signal lines
avoiding routing stubs
spacing signals far apart, and
using a return via adjacent to every signal via
If you care about signal integrity in your circuit board design, this lecture is for you.
Single-ended S-parameters and Signal Integrity Applications
With digital clock signals over 1 GHz, signals are really in the microwave regime. And, the most effective way of describing the high frequency electrical properties of interconnects is with the microwave concept of Scattering Parameters. Even though S-parameters were originally created in the frequency domain, they can also be extended into the time domain. They are becoming the most important and universal standard to describe interconnects. In this lecture, we will describe what S-parameters are, and how they tell us everything important about the properties of single and coupled transmission lines. If you are a serious signal integrity engineer, S-parameters will absolutely be in your future and this lecture is a great starting place.
Differential S-parameters and Signal Integrity Applications
S-parameters are complicated. Using them to describe differential pairs can be really complicated. In this lecture, we make differential S-parameters easy. We will look at how the principles of single-ended S-parameters can be applied to a differential pair. We will separate the behavior of differential signals and common signals, and how they can be converted from one to the other. Differential S-parameters are not limited to the frequency domain. We will explore the ten most important differential S-parameters in the time and the frequency domain. If you design with differential pairs, this lecture will give you the skills you need to use differential S-parameters to describe your interconnects. 没有看到如何收费，收多少，靠，鄙视这种行为 上海真好! 这种讲座都是要收费的，应该不便宜吧。 这个也要收费啊，哎 “实效的服务 百能的承诺”
-------深圳市领创电路科技有限公司
深圳市领创电路科技有限公司是一家于2003年5月成立的专业从事线路板设计、研发、生产和销售的专业制造商，主要产品种类为94HB/94VO/22F/CEM-1/CEM-3/FR-4类的单面、双面及多层刚性线路板。
“我是在百度上搜索信息时，知道百能的。” 深圳市领创电路科技有限公司的黄先生讲到。“百能提供的信息比较有针对性，没有那些不实用的广告，信息服务做的很好。”
对于如何选择合适的采购商时，黄先生谈到：“根据客户的要求，在工厂的工艺范围内，我们都会有意合作。百能提供给我们很多的采购信息。
“百能提供的商机智能匹配技术，能很快的匹配出合适的采购商，大大节约了时间成本，提高了工作效率。”黄先生愉快的分享着自己在使用百能之后的感受。“在今后，我想百能还会提供给我更多更实用的服务。” 很可惜没参加. 这个不一定有中国人讲的好 富士康工厂开始量产iPad
据消息人士透露，由于iPad需求年末有望大幅增长，富士康最近开始在成都新厂生产iPad。
尽管成都生产线的日产量仅为1万台，但仍将有助于缓解供应压力。据预计，到明年第一季度成都工厂将成为一个重要的iPad供应基地。
目前，深圳工厂仍是iPad的主要生产基地，每月最大产能250万台。消息人士称，富士康第四季度iPad发货量可能超过700万台，全年发货量可能达到1500万台。
该消息人士还透露，富士康计划在成都建立50条iPad生产线，使年产量达到4000万台。
据预计，iPad 2将于明年第一季度发布，包括富士康、正崴(Foxlink)和奇美电子在内的企业都将成为该设备的组件供应商。
转载来源：百能网（[url]www.pcbpartner.cn[/url]
） PCB百能网成功案例-----“认真负责是赢得客户信赖的基础”
深圳金祥电子有限公司与博容兴电子有限公司达成合作
“百能这次帮了我们大忙！这家合作供应商的生产能力很不错！” 深圳市博容兴电子有限公司的黄先生赞叹道。而黄先生口中这家“不错的供应商”正是深圳金祥电子有限公司。
成立于1998年的深圳市金祥电子有限公司，是一家集设计研发，制作生产单、双面、多层印制电路板的专业厂家。公司现拥有员工700多名，厂房面积近15000平方米，月产量达50000平方米。
作为百能的供应商会员，深圳金祥电子有限公司一直积极报价，认真对待每一个可能合作的商机。这次通过百能，得知博容兴电子的有紧急采购需求时，深圳金祥电子立刻向对方报了价，并派人联系负责此次采购的黄先生。这让正为发愁寻找合适供应商的黄先生也似乎看到了希望。
“金祥电子的沟通工作做的很好，而且一直都很积极跟进工作。此次在我们采购任务如此紧急的情况下，他们还可以做到公平合理的报价。这让我们觉得对方很可靠。”黄先生感慨道，“在商讨一些具体事宜的过程中，对方提供一些建议供我们参考。我们放心将订单交给这样一个专业且负责的供应商。”
对于拿到订单，并获得采购商的好评，作为供应商一方的负责人邓经理谦虚的表示：“我们只是做我们应该做的，并且力争将它做好。对于采购商的要求，我们会尽可能的配合，并认真研究对方的采购需求，这样做出来的产品，才可能的让对方感到满意。当然，积极的报价，负责任的跟进态度，是赢得采购商青睐的前提。”
双方均表示，此次合作非常愉快，希望今后双方还会有新的合作。同时也感谢百能给了他们这样一个认识合作的机会。
转载请注明—来源于百能网（[url]www.pcbpartner.cn[/url]）
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