Author Topic: A video soldering a QFP44 SMD MCU  (Read 3339 times)

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Offline GON

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A video soldering a QFP44 SMD MCU
« on: Tue, 21 May 2013, 23:53:29 »

I took this video to show how to solder a QFP44 MCU.
I'm so sorry not to speak in English nor to have added English captions.
In fact, I'm not a fluent English speaker.(Writing is one thing, Speaking's another. ;))
And not accustomed to the whole function of YouTube...

Later, I promise I will record video in English so that you GH members could easily understand. ;)
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline tjcaustin

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Re: A video soldering a QFP44 SMD MCU
« Reply #1 on: Wed, 22 May 2013, 00:02:47 »
Do you mind if I link this in the soldering beginners thread?

Offline The_Beast

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Re: A video soldering a QFP44 SMD MCU
« Reply #2 on: Wed, 22 May 2013, 00:02:48 »
Is this an A.87 PCB?
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Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #3 on: Wed, 22 May 2013, 00:05:26 »
Do you mind if I link this in the soldering beginners thread?

Not at all.
It's my pleasure if this video can help others. ;)
Link as you want. ;)
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #4 on: Wed, 22 May 2013, 00:05:53 »
Is this an A.87 PCB?

Yes, it's A.87 PCB
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline kaiserreich

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Re: A video soldering a QFP44 SMD MCU
« Reply #5 on: Wed, 22 May 2013, 04:22:10 »
Lovely drag soldering :)

What is the size of the tip being used ? (diameter)

Offline Rendom

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Re: A video soldering a QFP44 SMD MCU
« Reply #6 on: Wed, 22 May 2013, 05:31:42 »
sound so handsome  :-*
QFR - MX Blue

Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #7 on: Wed, 22 May 2013, 05:36:11 »
Lovely drag soldering :)

What is the size of the tip being used ? (diameter)

The tip used in the video is HAKKO T15-CF3 - 3mm in dianeter.
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #8 on: Wed, 22 May 2013, 05:36:39 »
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline Leslieann

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Re: A video soldering a QFP44 SMD MCU
« Reply #9 on: Wed, 22 May 2013, 05:54:34 »
Fantastic technique, my luck I would end up soldering half the pins together and the other half wouldn't get anything at all.
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Offline The_Beast

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Re: A video soldering a QFP44 SMD MCU
« Reply #10 on: Wed, 22 May 2013, 05:58:06 »
What solder iron did you use? What was the temp?


I hope the SMD goes as smoothly on my A.87!
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Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #11 on: Wed, 22 May 2013, 06:03:11 »
What solder iron did you use? What was the temp?


I hope the SMD goes as smoothly on my A.87!

The iron used in the video is HAKKO FM-206 station + FM-2027 iron + T15-CF3 tip.
I usually set the temp to 350 Celsius.
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline The_Beast

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Re: A video soldering a QFP44 SMD MCU
« Reply #12 on: Wed, 22 May 2013, 06:05:28 »
What solder iron did you use? What was the temp?


I hope the SMD goes as smoothly on my A.87!

The iron used in the video is HAKKO FM-206 station + FM-2027 iron + T15-CF3 tip.
I usually set the temp to 350 Celsius.


Thanks! If you had a HAKKO FM-206 station, why didn't you hot air SMD solder? Seems a bit odd since everyone seems to prefer to hot air SMD solder over an iron.
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Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #13 on: Wed, 22 May 2013, 06:43:54 »
What solder iron did you use? What was the temp?


I hope the SMD goes as smoothly on my A.87!

The iron used in the video is HAKKO FM-206 station + FM-2027 iron + T15-CF3 tip.
I usually set the temp to 350 Celsius.


Thanks! If you had a HAKKO FM-206 station, why didn't you hot air SMD solder? Seems a bit odd since everyone seems to prefer to hot air SMD solder over an iron.

Of course, I have an FM-2029 hot air pencil.
In fact, I have HAKKO FR-803 Hotair rework station with various nozzles, too.
I solder small SMD parts with hot air, but not QFP44.
The best soldering quality for QFPs can be done with a proper iron tip.
You will be able to know it if you take a closer look at the toes and hills of the QFP leads with a magnifier.
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline metalliqaz

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Re: A video soldering a QFP44 SMD MCU
« Reply #14 on: Wed, 22 May 2013, 06:47:34 »
I also only use tip-and-wire to do them now.  I attempted a hot air solder of a TQFP44 and I over-temp'ed it.  Destroyed the flash as far as I can tell. 

Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #15 on: Wed, 22 May 2013, 06:54:51 »
http://www.kbdmania.net/xe/index.php?_filter=search&mid=photo&search_target=nick_name&search_keyword=GON_&page=2&document_srl=4962270

Here in the link above  you can see two soldered QFPs.
One is soldered with an iron tip by me.
The other is soldered by SMT machine.

Which one do you think is better? ;)
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline Wraul

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Re: A video soldering a QFP44 SMD MCU
« Reply #16 on: Wed, 22 May 2013, 12:18:26 »
Very nice soldering GON.
I wish I could produce solder joints that looks that good.
I will keep practicing.

Offline GON

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Re: A video soldering a QFP44 SMD MCU
« Reply #17 on: Wed, 22 May 2013, 14:15:43 »
Very nice soldering GON.
I wish I could produce solder joints that looks that good.
I will keep practicing.

Practice makes Perfection. ;)
Even though I have made/assembled/tuned HUNDREDs of keyboards for others, I myself don't have a full-tuned Custom Keyboard now.
So Ironical!

Offline adamseto

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Re: A video soldering a QFP44 SMD MCU
« Reply #18 on: Sat, 25 May 2013, 10:03:22 »
Pro assemble of Mechanical Keyboard :v
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