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Date: | Mon, 7 Jan 2008 08:41:46 +0800 |
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您好!
对于潮湿敏感和需要回流焊的器件,也可以参考一下IPC的J-STD-020C:
《Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State
Surface Mount Devices》
Table 4-1 SnPb Eutectic Process – Package Peak Reflow Temperatures
Table 4-2 Pb-free Process – Package Classification Reflow Temperatures
以上仅供参考
贾变芬
ZTE
johnson zhao
<[log in to unmask]
OM> 收件人
发件人: TGAsia [log in to unmask]
<[log in to unmask]> 抄送
主题
2008-01-05 09:59 Re: [TGA] 元器件焊接溫度的訂定
请答复 给
johnson zhao
<[log in to unmask]
om>
您好!
一般元件生产厂家都会提供器件的最大承受温度和时间,实际在焊接时所采用的最佳
温度的设定,您需要考虑您使用的设备功率\焊接头的大小\焊接区域的大小\形状(热容
大小)还有器件的最大承受温度等综合考虑,并通过实验才能得到贵司生产该产品时的
最佳温度和焊接时间.总之在最低的温度和最短的时间内完成焊接工作,并得到良好的
焊接效果,才是最好.
目前,所谓的推荐的温度和焊接时间主要是参考目前所使用的60W\M型手柄得到焊接
温度,仅作参考而已.
Best Regarts!
赵松涛
2008-1-5
深圳市易思维科技有限公司
----- Original Message -----
From: rock
To: [log in to unmask]
Sent: Friday, January 04, 2008 5:30 PM
Subject: [TGA] 元器件焊接溫度的訂定
我司在生產中遇到一些困擾,因為很多元器件規格書上沒有焊接溫度要求,而我們現
行是靠試驗去確定最佳焊接溫度,請問是否有相關標準去規定不同元件應使用多少的
溫度焊接?
饒展鵬
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