PCB Libraries, Inc. | https://www.pcblibraries.com/forum/land-patterns-for-leadfree-componet-soldering_topic612_post2167.html
. When the PCB goes through the reflow oven, the paste mask melts and moves toward the component lead. The solder in the pad corners disappears
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/sony.pdf
sony greening of the reflow process The Greening of the Reflow Process Atsushi Kikuchi Sony Electronics HELLER 50-647-062 SONY ARTICLE - 2 OF 10 EDIT 1 - 08/08/2001 The Greening of the Reflow Process