公开(公告)号：US10049997B2

公开(公告)日：2018-08-14

申请号：US15440621

申请日：2017-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ju-Il Choi ,  Hyoju Kim ,  Kwangjin Moon ,  Sujeong Park ,  Jubin Seo ,  Naein Lee ,  Ho-Jin Lee

IPC: H01L23/00

Abstract: A pad is disposed on a substrate. A bump structure is disposed on the pad and electrically connected to the pad. The bump structure includes a first copper layer and a second copper layer sequentially stacked on the pad and a solder ball on the second copper layer. A first X-ray diffraction (XRD) peak intensity ratio of (111) plane to (200) plane of the first copper layer is greater than a second XRD peak intensity ratio of (111) plane to (200) plane of the second copper layer.

公开(公告)号：US10020273B2

公开(公告)日：2018-07-10

申请号：US15345614

申请日：2016-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ju-il Choi ,  Hyoju Kim ,  Byunglyul Park ,  Yeun-Sang Park ,  Jubin Seo ,  Atsushi Fujisaki

IPC: H01L23/00 ,  H01L25/065

CPC classification number: H01L24/13 ,  H01L24/11 ,  H01L25/0657 ,  H01L2224/0345 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05022 ,  H01L2224/05166 ,  H01L2224/05582 ,  H01L2224/05647 ,  H01L2224/11462 ,  H01L2224/1147 ,  H01L2224/11831 ,  H01L2224/11849 ,  H01L2224/11901 ,  H01L2224/13005 ,  H01L2224/13006 ,  H01L2224/13017 ,  H01L2224/13018 ,  H01L2224/13025 ,  H01L2224/13026 ,  H01L2224/13076 ,  H01L2224/13083 ,  H01L2224/13111 ,  H01L2224/13147 ,  H01L2224/13155 ,  H01L2224/13157 ,  H01L2224/13211 ,  H01L2224/13239 ,  H01L2224/16145 ,  H01L2224/16238 ,  H01L2224/81191 ,  H01L2224/81447 ,  H01L2224/81455 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2225/06541 ,  H01L2225/06544 ,  H01L2924/15311 ,  H01L2924/00014 ,  H01L2924/206 ,  H01L2924/0105 ,  H01L2924/01327 ,  H01L2224/1146 ,  H01L2924/01047 ,  H01L2924/014 ,  H01L2924/01029

Abstract: According to aspects provided herein, a semiconductor device may include a bump providing improved reliability and reduced size. In some aspects, a conductive pad may be formed on a substrate, and a conductive support layer, which may be a pillar, may be formed on the conductive pad. An intermetallic compound (IMC) layer may be formed on the conductive support layer, and a solder layer may be formed on the IMC layer. In some aspects, the conductive support layer may be of a smaller width than the IMC layer. In some aspects, the conductive support layer may have side surfaces which are wider at the solder side than at the conductive pad side. In some aspects, other layers may be formed, such as a seed layer between the conductive pad and the conductive support layer, or a barrier layer between the conductive support layer and the IMC layer.