Dear Patricia Lui You try hot air gun to remove components of 4 legs. Best regards Tom Zhang (张涛) Customer Service Department FIC (Suzhou) Inc. Tel: +86 512 62581988 Ext:5629 Fax:+86 512 62581973 Email:[log in to unmask] ________________________________ 寄件者: TGAsia [mailto:[log in to unmask]] 代理 Patricia Lui 寄件日期: 2011年3月17日 12:32 收件者: [log in to unmask] 主旨: Re: [TGAsia] 回覆: [TGAsia] leadfree hand s oldering t emperature Thanks Tom, I have a common complain of pads lift especially when the rework guy have to remove components with 4 legs. I have examined how the rework guy do to remove the components. He have used the tip of the soldering iron to rub on all the 4 solder joints until all the solder of the 4 legs melt then he pull out the component. I believe by metling the 4 legs together take a longer time which have caused the pads to be over heated and the pads lift up. Can you advice me what is the proper way we should do to remove a 4 leg component so as not to over heat the pads. Hope to have your advise. Thanks & Best Regards Patricia Lui Xuan Technologies --- On Wed, 16/3/11, Tom Zhang <[log in to unmask]> wrote: From: Tom Zhang <[log in to unmask]> Subject: [TGAsia] 回覆: [TGAsia] leadfree hand soldering t emperature To: [log in to unmask] Date: Wednesday, 16 March, 2011, 8:49 AM Temperature is too low I advise temperature setted 380+(-)10 degC. Best regards Tom Zhang (张涛) Customer Service Department FIC (Suzhou) Inc. Tel: +86 512 62581988 Ext:5629 Fax:+86 512 62581973 Email:[log in to unmask] ________________________________ 寄件者: TGAsia [mailto:[log in to unmask]] 代理 Patricia Lui 寄件日期: 2011年3月15日 23:17 收件者: [log in to unmask] 主旨: [TGAsia] leadfree hand soldering temperature Dear Sir, I have a customer who often complains boards supplied by us have pads lift issue when they do hand soldering rework. This customer is using hand soldering with temperature set at 320-349 degC for leadfree soldering rework and the boards supplied by us are with Tg130-140 degC only. We hope to have your expertise advice what is the common leadfree hand soldering temperature and if need to withstand 320-349degC hand soldering temperature, what Tg material should be used. Hope to receive your favourable advise. Thanks & Best Regards Patricia Lui Xuan Technologies ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________