US 10,973,161 B2
Electronic component removal device
Brad S. Williams, Mckinney, TX (US); Yoram Baxter, Richardson, TX (US); Marco Ordonez, Richardson, TX (US); and Bill Steadman, Richardson, TX (US)
Assigned to Raytheon Company, Waltham, MA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Jan. 13, 2017, as Appl. No. 15/406,491.
Prior Publication US 2018/0206371 A1, Jul. 19, 2018
Int. Cl. H05K 13/04 (2006.01); B24B 27/06 (2006.01); B23D 59/00 (2006.01); H01L 23/00 (2006.01); B23D 57/00 (2006.01); G01R 31/28 (2006.01)
CPC H05K 13/0491 (2013.01) [B23D 57/0007 (2013.01); B23D 57/0053 (2013.01); B23D 57/0069 (2013.01); B23D 59/001 (2013.01); B24B 27/0633 (2013.01); B24B 27/0691 (2013.01); H01L 24/98 (2013.01); H05K 13/0486 (2013.01); B23D 57/0061 (2013.01); B23D 59/002 (2013.01); G01R 31/2886 (2013.01); H05K 2203/176 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic component removal device, comprising:
a cutting wire routed through a cutting region configured to receive an electronic component coupled to a substrate;
a leading actuator coupled to a leading end of the cutting wire to cause movement of the cutting wire in a cutting direction at a cutting speed through the cutting region;
a trailing resistance device coupled to a trailing end of the cutting wire to resist movement of the cutting wire in the cutting direction through the cutting region, the trailing resistance device being actuatable to variably control a resistance force applied to the cutting wire; and
a leading tension sensor operable to sense a leading tension in the cutting wire between the cutting region and the leading actuator,
wherein the trailing resistance device is actuated based on the leading tension in the cutting wire sensed by the leading tension sensor.