Head-in-Pillow BGA Defects Head-in-Pillow BGA Defects. Head-in-pillow (HiP), also known as ball-and-socket, is a solder joint defect where the solder paste deposit wets the pad, but does not fully wet the ball. This results in a solder joint
SMTnet Express, February 28, 2019, Subscribers: 31,699, Companies: 10,717, Users: 25,786 Evaluation, Selection and Qualification of Replacement Reworkable Underfill Materials Credits: Northrop Grumman Corporation A study was performed
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