Скачать или смотреть QFN / MLF Rework with ATCO model AT-GDP Placement & Rework Station

Demonstrates removal and installation of a Dual Row QFN / MLF component (9mm x 9mm, 0.5mm pitch, 116 leads) on a mobile phone board using an ATCO model AT-GDP Placement & Rework Station. In-process component placement capability allows rework without the need for site cleaning. Machine Details: https://www.atco-us.com/at-gdp-smd-bg...

0:00 Introduction
0:20 QEN is aligned over nozzle prior to removal
0:56 Software controls reflow via top and bottom heaters
1:23 Nozzle and QFN move up automatically once process is complete
1:33 Software controlled airflow ensures adjacent components do not shift or misalign
2:06 QFN is aligned to the board
2:25 X and Y micrometers are 2 adjusted
2:37 Theta rotation adjustment
2:53 Adjustment of dual contrast LED's
3:17 "Table Lock" is clicked to secure board holder
3:42 OFN is positioned slightly above the board
3:52 Once residual solder melts on the board, OFN IS lowered
4:03 Site cleaning was not required
4:15 Controlled cooling at reflow nozzle and underside of the PCB
4:28 Nozzle automatically moves up after process is complete