-
公开(公告)号:US12068169B2
公开(公告)日:2024-08-20
申请号:US17446248
申请日:2021-08-27
Inventor: Ji Cui , Chih Hung Chen , Liang-Guang Chen , Kei-Wei Chen
IPC: H01L21/321 , H01L21/67 , H01L21/768
CPC classification number: H01L21/3212 , H01L21/67046 , H01L21/67051 , H01L21/76814
Abstract: A semiconductor processing tool includes a cleaning chamber configured to perform a post-chemical mechanical polishing/planarization (post-CMP) cleaning operation in an oxygen-free (or in a near oxygen-free) manner. An inert gas may be provided into the cleaning chamber to remove oxygen from the cleaning chamber such that the post-CMP cleaning operation may be performed in an oxygen-free (or in a near oxygen-free) environment. In this way, the post-CMP cleaning operation may be performed in an environment that may reduce oxygen-causing corrosion of metallization layers and/or metallization structures on and/or in the semiconductor wafer, which may increase semiconductor processing yield, may decrease semiconductor processing defects, and/or may increase semiconductor processing quality, among other examples.
-
公开(公告)号:US20210391186A1
公开(公告)日:2021-12-16
申请号:US16902180
申请日:2020-06-15
Inventor: Ji Cui , Fu-Ming Huang , Ting-Kui Chang , Tang-Kuei Chang , Chun-Chieh Lin , Wei-Wei Liang , Liang-Guang Chen , Kei-Wei Chen , Hung Yen , Ting-Hsun Chang , Chi-Hsiang Shen , Li-Chieh Wu , Chi-Jen Liu
IPC: H01L21/321 , B24B37/04 , B24B37/10 , C09G1/02
Abstract: A method for CMP includes following operations. A dielectric structure is received. The dielectric structure includes a metal layer stack formed therein. The metal layer stack includes at least a first metal layer and a second metal layer, and the first metal layer and the second metal layer are exposed through a surface of the dielectric structure. A first composition is provided to remove a portion of the first metal layer from the surface of the dielectric structure. A second composition is provided to form a protecting layer over the second metal layer. The protecting layer is removed from the second metal layer. A CMP operation is performed to remove a portion of the second metal layer. In some embodiments, the protecting layer protects the second metal layer during the removal of the portion of the first metal layer.
-
公开(公告)号:US20190103312A1
公开(公告)日:2019-04-04
申请号:US16104006
申请日:2018-08-16
Inventor: Shich-Chang Suen , Kei-Wei Chen , Liang-Guang Chen
IPC: H01L21/768 , H01L21/28 , H01L21/02 , H01L29/66 , H01L21/311 , H01L21/285 , H01L21/033 , H01L29/78 , H01L23/522
Abstract: A method includes forming a first gate structure over a substrate, where the first gate structure is surrounded by a first dielectric layer; and forming a mask structure over the first gate structure and over the first dielectric layer, where forming the mask structure includes selectively forming a first capping layer over an upper surface of the first gate structure; and forming a second dielectric layer around the first capping layer. The method further includes forming a patterned dielectric layer over the mask structure, the patterned dielectric layer exposing a portion of the mask structure; removing the exposed portion of the mask structure and a portion of the first dielectric layer underlying the exposed portion of the mask structure, thereby forming a recess exposing a source/drain region adjacent to the first gate structure; and filling the recess with a conductive material.
-
公开(公告)号:US20170304990A1
公开(公告)日:2017-10-26
申请号:US15136706
申请日:2016-04-22
Inventor: Ting-Kui Chang , Fu-Ming Huang , Liang-Guang Chen , Chun-Chieh Lin
IPC: B24B37/20 , B24B37/005
CPC classification number: B24B37/20 , B24B37/005 , B24B37/30
Abstract: A polisher head of a polishing apparatus includes a membrane and a first local pressure nodule and a second local pressure nodule physically contacting the membrane. The first local pressure nodule is configured to apply a first local force to the membrane and the second local pressure nodule is configured to apply a second local force to the membrane. The first local pressure nodule and the second local pressure nodule are independently controllable.
-
公开(公告)号:US09679848B2
公开(公告)日:2017-06-13
申请号:US15282704
申请日:2016-09-30
Inventor: Han-Hsin Kuo , Chung-Chi Ko , Neng-Jye Yang , Fu-Ming Huang , Chi-Ming Tsai , Liang-Guang Chen
IPC: H01L27/108 , H01L23/528 , H01L21/3105 , H01L21/321 , H01L21/768 , H01L23/522 , H01L21/02 , H01L21/311 , H01L23/532
CPC classification number: H01L23/528 , H01L21/02337 , H01L21/02343 , H01L21/02359 , H01L21/3105 , H01L21/31055 , H01L21/31144 , H01L21/3212 , H01L21/76802 , H01L21/76807 , H01L21/76822 , H01L21/76826 , H01L21/76829 , H01L21/7684 , H01L21/76877 , H01L23/5226 , H01L23/53223 , H01L23/53228 , H01L23/53238 , H01L23/53252 , H01L23/53266 , H01L23/5329 , H01L23/53295 , H01L2924/0002 , H01L2924/00
Abstract: An interconnect and a method of forming an interconnect for a semiconductor device is provided. The interconnect is formed by treating an upper surface of a dielectric layer to create a high density layer. The treatment may include, for example, creating a high density monolayer using hexamethyldisilazane (HMDS), trimethylsilydiethylamine (TMSDEA) or trimethylsilylacetate (OTMSA). After treating, the dielectric layer may be patterned to create openings, which are subsequently filled with a conductive material. Excess conductive material may be removed using, for example, a chemical mechanical polishing.
-
公开(公告)号:US20170125549A1
公开(公告)日:2017-05-04
申请号:US15407784
申请日:2017-01-17
Inventor: Chi-Jen Liu , Li-Chieh Wu , Liang-Guang Chen , Shich-Chang Suen
IPC: H01L29/66 , H01L21/768 , H01L21/02 , H01L21/321
CPC classification number: H01L29/66545 , H01L21/02074 , H01L21/28088 , H01L21/28123 , H01L21/3212 , H01L21/76802 , H01L21/76805 , H01L21/76829 , H01L21/76831 , H01L21/76895 , H01L29/4966 , H01L29/517 , H01L29/665 , H01L29/6659
Abstract: A method includes forming a dummy gate of a transistor at a surface of a wafer, removing the dummy gate, and filling a metallic material into a trench left by the removed dummy gate. A Chemical Mechanical Polish (CMP) is then performed on the metallic material, wherein a remaining portion of the metallic material forms a metal gate of the transistor. After the CMP, a treatment is performed on an exposed top surface of the metal gate using an oxidation-and-etching agent comprising chlorine and oxygen.
-
公开(公告)号:US09269585B2
公开(公告)日:2016-02-23
申请号:US14152497
申请日:2014-01-10
Inventor: Shich-Chang Suen , Li-Chieh Wu , Chi-Jen Liu , He Hui Peng , Liang-Guang Chen , Yung-Chung Chen
IPC: H01L21/3205 , H01L21/4763 , H01L21/28 , H01L21/02 , H01L21/311
CPC classification number: H01L21/02068 , H01L21/02063 , H01L21/0234 , H01L21/28079 , H01L21/28132 , H01L21/288 , H01L21/31105 , H01L21/31111 , H01L21/31116 , H01L21/76804 , H01L21/76814 , H01L21/76831 , H01L21/76877 , H01L21/76895 , H01L29/401 , H01L29/66545
Abstract: The present disclosure provides a method for forming an integrated circuit (IC) structure. The method includes providing a metal gate (MG), an etch stop layer (ESL) formed on the MG, and a dielectric layer formed on the ESL. The method further includes etching the ESL and the dielectric layer to form a trench. A surface of the MG exposed in the trench is oxidized to form a first oxide layer on the MG. The method further includes removing the first oxide layer using a H3PO4 solution.
Abstract translation: 本公开提供了一种用于形成集成电路(IC)结构的方法。 该方法包括提供金属栅极(MG),形成在MG上的蚀刻停止层(ESL)以及形成在ESL上的电介质层。 该方法还包括蚀刻ESL和介电层以形成沟槽。 暴露在沟槽中的MG的表面被氧化以在MG上形成第一氧化物层。 该方法还包括使用H 3 PO 4溶液去除第一氧化物层。
-
公开(公告)号:US20150072511A1
公开(公告)日:2015-03-12
申请号:US14024247
申请日:2013-09-11
Inventor: Chi-Jen Liu , Li-Chieh Wu , Shich-Chang Suen , Liang-Guang Chen
IPC: H01L29/66 , H01L21/28 , H01L21/306
CPC classification number: H01L29/66545 , H01L21/02074 , H01L21/28088 , H01L21/28123 , H01L21/3212 , H01L21/76802 , H01L21/76805 , H01L21/76829 , H01L21/76831 , H01L21/76895 , H01L29/4966 , H01L29/517 , H01L29/665 , H01L29/6659
Abstract: A method includes forming a dummy gate of a transistor at a surface of a wafer, removing the dummy gate, and filling a metallic material into a trench left by the removed dummy gate. A Chemical Mechanical Polish (CMP) is then performed on the metallic material, wherein a remaining portion of the metallic material forms a metal gate of the transistor. After the CMP, a treatment is performed on an exposed top surface of the metal gate using an oxidation-and-etching agent comprising chlorine and oxygen.
Abstract translation: 一种方法包括在晶片的表面上形成晶体管的虚拟栅极,去除虚拟栅极,并将金属材料填充到由去除的虚拟栅极留下的沟槽中。 然后对金属材料进行化学机械抛光(CMP),其中金属材料的剩余部分形成晶体管的金属栅极。 在CMP之后,使用包含氯和氧的氧化 - 蚀刻剂在金属栅极的暴露的顶表面上进行处理。
-
公开(公告)号:US11658065B2
公开(公告)日:2023-05-23
申请号:US16902203
申请日:2020-06-15
Inventor: Ji Cui , Fu-Ming Huang , Ting-Kui Chang , Tang-Kuei Chang , Chun-Chieh Lin , Wei-Wei Liang , Chi-Hsiang Shen , Ting-Hsun Chang , Li-Chieh Wu , Hung Yen , Chi-Jen Liu , Liang-Guang Chen , Kei-Wei Chen
IPC: H01L21/768 , C09K3/14 , C09G1/02 , H01L21/321
CPC classification number: H01L21/7684 , C09G1/02 , C09K3/1463 , C09K3/1481 , H01L21/3212 , H01L21/76877
Abstract: A method for CMP includes following operations. A metal layer is received. A CMP slurry composition is provided in a CMP apparatus. The CMP slurry composition includes at least a first oxidizer and a second oxidizer different from each other. The first oxidizer is oxidized to form a peroxidant by the second oxidizer. A portion of the metal layer is oxidized to form a first metal oxide by the peroxidant. The first metal oxide is re-oxidized to form a second metal oxide by the second oxidizer.
-
公开(公告)号:US11517995B2
公开(公告)日:2022-12-06
申请号:US16448963
申请日:2019-06-21
Inventor: Ji James Cui , Chia-Hsun Chang , Chih Hung Chen , Liang-Guang Chen , Tzu Kai Lin , Chyi Shyuan Chern , Keith Kuang-Kuo Koai
IPC: B24B49/00 , B24B37/015 , B24B57/02 , B24B37/34
Abstract: The present disclosure provides a wet chemical heating system, including a first conduit for transporting wet chemical, a dispensing head connected to the first conduit, and a radiative heating element configured to heat the wet chemical in the first conduit and positioned at an upper stream of the dispensing head.
-
-
-
-
-
-
-
-
-