Solder Paste Questions for Replacing IC

Question

iPhone 6 Plus

2014年9月19日发布的iphone 6 Plus有着比iphone 6大的5.5英寸屏幕。

20 个问题查看全部 | 64配件购买

Diego A @smarticles

声誉积分: 197

4

发帖于: 2016年12月28日

更多选项

Solder Paste Questions for Replacing IC

I have recently started soldering and i wish to try to repair an Iphone 6 plus that has touch disease and 2 iphone 6s pluses that have the not charging due to the charging IC that needs to be replaced/reballed.

I have a few questions:

Do i really need to use solder paste? (I want to replace them not reball)

Is it worth it to dish out extra money for high quality solder paste from good brands like MG Chemicals or should i stick to Mechanic solder paste?

Do i need anything else to do these solderings?

I have a soldering station/heat gun with regulators and I have bought good flux from genuine Amtech and Solder wick and heat resistant tape. I've been practicing on a damaged iphone 4 logic board.

Thanks for the help.

已回答！ 显示答案我也有这个问题

这是一个好问题吗？

是否

得分 0

添加一条评论

3个答案

已选择的解决方案

Minho @refectio

声誉积分: 221.8千

15

295

808

发帖于: 2016年12月28日

更多选项

If you are replacing the IC's, then you do not need solder paste because the replacement IC's already have the solder balls. Solder paste is used to reball BGA IC's. Alternatively, you can also use solder balls of the proper dimension to reball the IC's. You will also need stencils to reball.

Both approaches have their advantages and disadvantages. You really need to practice them both to see what works best for you.

For changing touch IC's or Tristar chips, you need good quality flux and enough practice to apply just the right amount of heat, otherwise you can cause secondary damage. Keep practicing!

这个答案有帮助吗？

是否

得分 5

添加一条评论

Ione O. Bryant @comortled 声誉积分: 1 · Answer 1 · 2017-07-09T22:08:37-07:00

Ione O. Bryant @comortled

声誉积分: 1

发帖于: 2017年7月9日

更多选项

Hi

If you want to replace the IC ,then you don’t need solder paste. But if you need to reball,solder paste is an issue. You can use the following materials to do your repairs like hot air soldering tool,soldering iron,twizzers,solder wick,tacky flux and isopropile alcohol.

You can understand more if you have a technical support. I prefer you to reball it.

That will be a long term repair. There are companies in Toronto which help with the bga reballing and replacing issues. That will be helpful. So that your doubts will be better clarified.

这个答案有帮助吗？

是否

得分 0

添加一条评论