发明名称 |
Method of manufacturing bump |
摘要 |
A bump manufacturing method may be provided. The bump manufacturing method may include forming a bump on an electrode pad included in a semiconductor device, and controlling a shape of the bump by reflowing the bump formed on the semiconductor device under an oxygen atmosphere. |
申请公布号 |
US9269620(B2) |
申请公布日期 |
2016.02.23 |
申请号 |
US201213710586 |
申请日期 |
2012.12.11 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
Ok Jung Tae;Kim Hak Hwan;Paek Ho Sun;Kim Kwon Joong |
分类号 |
H01L23/498;H01L21/768;H01L23/48;H01L23/485;H01L23/00 |
主分类号 |
H01L23/498 |
代理机构 |
Muir Patent Law, PLLC |
代理人 |
Muir Patent Law, PLLC |
主权项 |
1. A method of manufacturing a bump, the method comprising:
forming a bump on an electrode pad included on a semiconductor chip; and controlling a shape of the bump by:
adjusting an amount of oxygen concentration in a reflow chamber to select between a first concentration within a first range of oxygen concentration and a second concentration within a second range of oxygen concentration lower than the first range of oxygen concentration, the second concentration being lower than the first concentration; andreflowing the bump formed on the semiconductor chip under an oxygen atmosphere having the selected oxygen concentration, andcontrolling the shape of the bump to have one of a globular shape or a planar shape based on the selected oxygen concentration. |
地址 |
Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do KR |