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July 2011

TGAsia@IPC.ORG

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Subject:
From:
"Charles Lee(DD&TT)" <[log in to unmask]>
Reply To:
Asia Committe Task Group Forum <[log in to unmask]>, Charles Lee(DD&TT)
Date:
Mon, 18 Jul 2011 10:00:55 +0800
Content-Type:
text/plain
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text/plain (1 lines)
Dear All,

Why we don't recommend to use ESD wireless wrist strap is that the working
mechanism of its electrostatic discharge is not so convinced.


Best Regards
Charles Lee

-----Original Message-----
From: TGAsia [mailto:[log in to unmask]] On Behalf Of Mark Yang
Sent: Monday, July 18, 2011 9:50 AM
To: [log in to unmask]
Subject: Re: [TGAsia] 答复: [TGAsia] Esd 静电手环

期待了解这个信息,我们公司也有同样的问题,有很多客户都怀疑无绳的静电手环,我
们需要足够的证据向客户说明,谢谢!

Best regards!
Mark

----- Original Message -----
From: "Leesha "Lixia" PENG" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, July 16, 2011 10:06 AM
Subject: Re: [TGAsia] 答复: [TGAsia] Esd 静电手环


> 静电是不可移动的电荷,停留在某个物体上。遇到导体时,会快速移动。如果静电敏
感物体在这个静电荷快速移动的通路上,就会被损坏。
> 接地的防静电的用具为静电荷提供一个电的通路,串联了一个兆欧级电阻,降低静电
荷移动的速度,大大降低了静电敏感物体被损伤的机会。立鹤说的快速应该理解为随时
的意思。我不懂无线手环的原理,但是根据立鹤的说明,我的理解是无线手环不能随时
排走静电荷,静电荷必须积累到一定程度时才能通过尖端放电排走。
> 我会查找IPC的技术文献,然后向大家报告。
> 
> Leesha Peng
> 彭丽霞
> IPC中国总经理
> 18616593891
> 
> 
> 在 2011-7-16,上午8:26,"郑立鹤"
<[log in to unmask]<mailto:[log in to unmask]>> 写道:
> 
> 无线静电手环应是采用尖端放电的原理来释放电荷, 只有当电荷积累
> 到一定的程度时(有书上说是人体静电压2000V以上时)才会发生静
> 电荷的释放,有线的手环静电释放速度就很快且较为彻底,用CPM来做
> 一个对比测试,效果很明显,但是具体是否适用,还是要根据每个公司
> 的具体情况(如器件的静电敏感等级)来判定。
> 以上仅个人见解,不正确的地方还请指正!
> 
> 
> 电子工程:郑立鹤
> 伊戈尔电气股份有限公司
> 佛山市南海区简平路桂城科技园A3号
> MP:18666577208      zip code:528200
> Tel:0757-86256771
> E-mail:[log in to unmask]<mailto:[log in to unmask]>
> Website:www.eaglerise.com<http://www.eaglerise.com>
> ________________________________
> 发件人: TGAsia [mailto:[log in to unmask]] 代表 Dh
> 发送时间: 2011年7月15日 10:07
> 收件人: <mailto:[log in to unmask]> [log in to unmask]<mailto:[log in to unmask]>
> 主题: [TGAsia] Esd 静电手环
> 
> 大家好,请教各位,那种无线式静电环可以用吗?有些客户不赞成用,我们公司是组
装厂,机器都比较大,用有线环不太方便。
> 谢谢!
> 
> Edmund Liu
> 
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