公开(公告)号：US09040415B2

公开(公告)日：2015-05-26

申请号：US14286108

申请日：2014-05-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Jine Park ,  Bo-Un Yoon ,  Young-Sang Youn ,  Jeong-Nam Han ,  Kee-Sang Kwon ,  Doo-Sung Yun ,  Byung-Kwon Cho ,  Ji-Hoon Cha

IPC: H01L21/4763 ,  H01L29/66

CPC classification number: H01L29/66477 ,  H01L21/02063 ,  H01L21/31116 ,  H01L21/76804 ,  H01L21/76814 ,  H01L21/76826 ,  H01L21/76897 ,  H01L29/41791 ,  H01L29/66553 ,  H01L29/66795 ,  H01L2221/1063

Abstract: A method for forming a trench includes etching an oxide layer to form a trench therein, conformally forming a first reaction layer along a surface of the trench, the first reaction layer including a first region on an upper portion of the trench and a second region on a lower portion of the trench, forming a barrier layer by reacting a first amount of etching gas with the first region of the first reaction layer, and etching the oxide layer on a lower portion of the second region by reacting a second amount of etching gas with the second region of the first reaction layer, the second amount of etching gas being greater than the first amount of etching gas.

Abstract translation: 一种用于形成沟槽的方法包括蚀刻氧化物层以在其中形成沟槽，沿着沟槽的表面共形形成第一反应层，第一反应层包括沟槽上部的第一区域和第二区域 沟槽的下部，通过使第一量的蚀刻气体与第一反应层的第一区域反应形成阻挡层，并且通过使第二量的蚀刻气体反应来蚀刻第二区域的下部的氧化物层 与第一反应层的第二区域相比，第二量的蚀刻气体大于第一量的蚀刻气体。

公开(公告)号：US10297474B2

公开(公告)日：2019-05-21

申请号：US14183994

申请日：2014-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Jine Park ,  Bo-Un Yoon ,  Jeong-Nam Han ,  Kee-Sang Kwon ,  Doo-Sung Yun ,  Won-Sang Choi

IPC: H01L21/67

Abstract: A chemical supplier includes a chemical reservoir containing a chemical mixture at a room temperature, an inner space of the chemical reservoir being separated from surroundings, a supply line through which the chemical mixture is supplied to a process chamber from the chemical reservoir, an inline heater positioned on the supply line and heating the chemical mixture in the supply line to a process temperature, and a power source driving the chemical mixture to move the chemical mixture toward the process chamber.