US 12,022,618 B2
Printed circuit board with stacked passive components
Chien Te Chen, Taichung (TW); Cong Zhang, Shanghai (CN); Yu Ying Tan, Taichung (TW); Hsiao Jung Lin, Taichung (TW); and Chieh Kai Yang, Taichung (TW)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Apr. 22, 2021, as Appl. No. 17/237,604.
Prior Publication US 2022/0346234 A1, Oct. 27, 2022
Int. Cl. H05K 1/18 (2006.01); H05K 1/11 (2006.01); H05K 3/24 (2006.01); H05K 3/28 (2006.01); H05K 3/34 (2006.01); H01L 25/065 (2023.01); H01L 25/18 (2023.01)
CPC H05K 1/181 (2013.01) [H05K 1/111 (2013.01); H05K 3/24 (2013.01); H05K 3/284 (2013.01); H05K 3/3442 (2013.01); H01L 25/0652 (2013.01); H01L 25/18 (2013.01); H05K 2201/094 (2013.01); H05K 2201/10015 (2013.01); H05K 2201/10022 (2013.01); H05K 2201/1003 (2013.01); H05K 2201/10159 (2013.01); H05K 2201/10515 (2013.01); H05K 2203/1316 (2013.01); H05K 2203/1322 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A printed circuit board comprising:
a substrate comprising a first set of contact pads and a first set of contact pillars integrally formed of the same material thereon on a second set of contact pads, wherein the first set of contact pillars have a height greater than the first set of contact pads and wherein a width of the first set of contact pillars is narrower than a width of the second set of contact pads such that the first set of contact pillars are positioned at a midpoint of the width of the second set of contact pads;
a first component coupled to the first set of contact pads along a first direction, the first component having a first side facing the first set of contact pads, and a second side opposite the first side; and
a second component coupled to the first set of contact pillars along a second direction, wherein the second direction traverses the first direction, the second component having a first side facing the first set of contact pads, and a second side opposite the first side;
wherein the second component is positioned above the first component such that at least a first portion of the second side of the first component faces the first side of the second component.