Definitions for "Tombstoning"
The lifting of one end of a passive surface mount component during solder reflow caused by surface tension and unbalanced forces of solder wetting.
A soldering defect condition observed after reflow soldering, in which leadless devices such as chip resistors or capacitors stand on their end, with only one edge soldered to lands on the circuit board, resembling a tombstone. Also referred to as the Stonehenge or Manhattan effect. Tombstoning is caused by force imbalances during solder reflow, with a variety of root causes. See also ‘ drawbridging’.
Stacking two headlines side by side so that they collide with each other; also called bumping or butting heads.
In multicolumn publications, when two or more headings in the same horizontal position on the page.