We was able to do this using heat gun and flux in my previous company. Of
course solder should be in place. It's need great patient and experience to
get good result.

Raymond

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Sebastian Garcia
Sent: December 18, 2001 7:24 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: [EE]: Manually soldering of a LQFP package.-


Hi there!


I will appreciate any help from an experienced lister about techniques for
manual soldering this kind of chip.
I got experience on manual soldering of some types of SMD IC's (using
Chem-Wik rosin), but this one has a *very little* space between pins.

The mechanical specs are:

* Package: 144 pin (4x36 pin) LQFP (Low-profile QFP)
* Distance between center of pins: 0.5 mm.
* Pin width: 0.17 mm.


Probably it can be done using flux or solder paste, but i have no detailed
idea about application of these techniques.

And yes, the chip is available only with this package...


Best Regards,

S.-

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics