公开(公告)号：US20170330742A1

公开(公告)日：2017-11-16

申请号：US15636660

申请日：2017-06-29

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Hsu Ting ,  Chun-Wei Yu ,  Chueh-Yang Liu ,  Yu-Ren Wang

IPC: H01L21/02 ,  H01L27/088 ,  H01L21/8234 ,  H01L29/06 ,  H01L21/311

CPC classification number: H01L21/0206 ,  H01L21/31111 ,  H01L21/31116 ,  H01L21/823431 ,  H01L27/0886 ,  H01L29/0657

Abstract: A semiconductor device and a method of forming the same, the semiconductor device includes fin shaped structures and a recessed insulating layer. The fin shaped structures are disposed on a substrate. The recessed insulating layer covers a bottom portion of each of the fin shaped structures to expose a top portion of each of the fin shaped structures. The recessed insulating layer has a curve surface and a wicking structure is defined between a peak and a bottom of the curve surface. The wicking structure is disposed between the fin shaped structures and has a height being about 1/12 to 1/10 of a height of the top portion of the fin shaped structures.

公开(公告)号：US09748111B2

公开(公告)日：2017-08-29

申请号：US15012821

申请日：2016-02-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yi-Liang Ye ,  Kuang-Hsiu Chen ,  Chueh-Yang Liu ,  Yu-Ren Wang

IPC: H01L21/461 ,  H01L21/321 ,  H01L29/66 ,  H01L21/3205 ,  H01L21/283 ,  H01L21/02 ,  H01L21/3105

CPC classification number: H01L21/3212 ,  H01L21/02065 ,  H01L21/02074 ,  H01L21/0214 ,  H01L21/02164 ,  H01L21/02167 ,  H01L21/0217 ,  H01L21/283 ,  H01L21/31053 ,  H01L21/31055 ,  H01L21/32055 ,  H01L21/32115 ,  H01L29/66795

Abstract: A method for fabricating a semiconductor structure includes following steps. First, a first layer, a second layer and a third layer are sequentially formed on the substrate. The second layer is conformally disposed on the top surface of the first layer. The second layer and the first layer have different compositions, and the third layer and the second layer also have different compositions. Then, a planarizing process is performed on the third layer until portions of the second layer are exposed. Afterwards, hydrofluoric acid and aqueous oxidant are concurrently or sequentially provided to the remaining second and third layers. Finally, an etch back process is carried out to remove all the second layer and portions of the first layer.

公开(公告)号：US20170243952A1

公开(公告)日：2017-08-24

申请号：US15592150

申请日：2017-05-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chia-Ming Kuo ,  Po-Jen Chuang ,  Fu-Jung Chuang ,  Tsai-Yu Wen ,  Tsuo-Wen Lu ,  Yu-Ren Wang ,  Fu-Yu Tsai

IPC: H01L29/66 ,  H01L29/49 ,  H01L21/28 ,  H01L21/02 ,  H01L21/311

CPC classification number: H01L29/66545 ,  H01L21/02126 ,  H01L21/02167 ,  H01L21/0228 ,  H01L21/28088 ,  H01L21/31111 ,  H01L29/0847 ,  H01L29/1608 ,  H01L29/161 ,  H01L29/165 ,  H01L29/4966 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/66795 ,  H01L29/7848 ,  H01L29/7851

Abstract: A semiconductor device and a method for manufacturing the same are provided in the present invention. The semiconductor device includes a substrate, agate structure on the substrate and two spacers on both sidewalls of the gate structure. Each spacer comprises an inner first spacer portion made of SiCN and an outer second spacer portion made of SiOCN.

公开(公告)号：US09741572B1

公开(公告)日：2017-08-22

申请号：US15049152

申请日：2016-02-22

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chueh-Yang Liu ,  Chun-Wei Yu ,  Yu-Ying Lin ,  Yu-Ren Wang

IPC: H01L21/8234 ,  H01L21/28 ,  H01L29/66

CPC classification number: H01L21/28185 ,  H01L21/28167 ,  H01L21/823462 ,  H01L29/51 ,  H01L29/513 ,  H01L29/517 ,  H01L29/66545

Abstract: A method of forming an oxide layer is provided in the present invention. The method includes the following steps. A first oxide layer is formed on a semiconductor substrate, and a quality enhancement process is then performed to etch the first oxide layer and densify the first oxide layer at the same time for forming a second oxide layer. The first oxide layer is etched and densified at the same time by a mixture of dilute hydrofluoric acid (DHF) and hydrogen peroxide (H2O2) in the quality enhancement process. The thickness of the second oxide layer may be reduced and the quality of the second oxide layer may be enhanced by the quality enhancement process at the same time.

公开(公告)号：US09502244B2

公开(公告)日：2016-11-22

申请号：US15166291

申请日：2016-05-27

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Yu-Ying Lin ,  Kuang-Hsiu Chen ,  Ted Ming-Lang Guo ,  Yu-Ren Wang

IPC: H01L29/06 ,  H01L21/02 ,  H01L29/423 ,  H01L21/76 ,  H01L21/3065 ,  H01L21/306 ,  H01L21/265

CPC classification number: H01L21/02636 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/26506 ,  H01L21/26513 ,  H01L21/283 ,  H01L21/30604 ,  H01L21/30608 ,  H01L21/3065 ,  H01L21/76 ,  H01L29/0692 ,  H01L29/0847 ,  H01L29/165 ,  H01L29/42356 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

Abstract: The present invention provides a method for forming a semiconductor structure, comprising: firstly, a substrate is provided, next, a first dry etching process is performed, to form a recess in the substrate. Afterwards, an ion implantation process is performed to a bottom surface of the recess, a wet etching process is then performed, to etch partial sidewalls of the recess, so as to form at least two tips on two sides of the recess respectively, and a second dry etching process is performed, to etch partial bottom surface of the recess, wherein after the second dry etching process is performed, a lower portion of the recess has a U-shaped cross section profile.

Abstract translation: 本发明提供一种形成半导体结构的方法，包括：首先提供衬底，然后进行第一干蚀刻工艺，以在衬底中形成凹陷。 之后，对凹部的底面执行离子注入工艺，然后执行湿蚀刻工艺，以蚀刻凹部的部分侧壁，从而分别在凹槽的两侧形成至少两个尖端，并且 进行第二干蚀刻工艺，以蚀刻凹部的部分底表面，其中在执行第二干蚀刻工艺之后，凹部的下部具有U形横截面轮廓。

公开(公告)号：US20160233092A1

公开(公告)日：2016-08-11

申请号：US14619085

申请日：2015-02-11

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Keng-Jen Lin ,  Chien-Liang Lin ,  Yu-Ren Wang ,  Neng-Hui Yang

IPC: H01L21/28 ,  H01L21/285

CPC classification number: H01L29/66545 ,  H01L21/28088 ,  H01L21/28506 ,  H01L21/3221 ,  H01L29/4966 ,  H01L29/517

Abstract: A gate forming process includes the following steps. A gate dielectric layer is formed on a substrate. A barrier layer is formed on the gate dielectric layer. A silicon seed layer and a silicon layer are sequentially and directly formed on the barrier layer, wherein the silicon seed layer and the silicon layer are formed by different precursors.

Abstract translation: 门形成工艺包括以下步骤。 在基板上形成栅极电介质层。 在栅介质层上形成阻挡层。 硅晶种层和硅层依次直接形成在阻挡层上，其中硅晶种层和硅层由不同的前体形成。

公开(公告)号：US20150206803A1

公开(公告)日：2015-07-23

申请号：US14158857

申请日：2014-01-19

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Wei-Hsin Liu ,  Tzu-Chin Wu ,  Jei-Ming Chen ,  Yu-Ren Wang ,  Chun-Yuan Wu ,  Chin-Fu Lin

IPC: H01L21/8234 ,  H01L21/311 ,  H01L21/02 ,  H01L21/3105

CPC classification number: H01L21/823462 ,  H01L21/31116 ,  H01L21/76837 ,  H01L21/823475

Abstract: A method of forming an inter-level dielectric layer including the following step is provided. Two gate structures are formed on a substrate. A first oxide layer is formed to conformally cover the two gate structures and the substrate. The first oxide layer is etched ex-situ by a high density plasma (HDP) etching process. A second oxide layer is formed in-situ on the first oxide layer and fills a gap between the two gate structures by a high density plasma (HDP) depositing process.

Abstract translation: 提供一种形成包括以下步骤的层间电介质层的方法。 在基板上形成两个栅极结构。 形成第一氧化物层以保形地覆盖两个栅极结构和衬底。 通过高密度等离子体（HDP）蚀刻工艺非原位蚀刻第一氧化物层。 在第一氧化物层上原地形成第二氧化物层，并通过高密度等离子体（HDP）沉积工艺填充两个栅极结构之间的间隙。

公开(公告)号：US20150140780A1

公开(公告)日：2015-05-21

申请号：US14085811

申请日：2013-11-21

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Keng-Jen Lin ,  Yu-Ren Wang ,  Chien-Liang Lin ,  Tsuo-Wen Lu ,  Wei-Jen Chen ,  Chih-Chung Chen

IPC: H01L21/762 ,  H01L21/02

CPC classification number: H01L21/76237 ,  H01L21/02164 ,  H01L21/0217 ,  H01L21/0228 ,  H01L21/32105 ,  H01L21/76205 ,  H01L21/76224

Abstract: A method for fabricating shallow trench isolation structure is disclosed. The method includes the steps of: (a) providing a substrate; (b) forming a trench in the substrate; (c) forming a silicon layer in the trench; and (d) performing an oxidation process to partially transform a surface of the silicon layer into an oxide layer.

Abstract translation: 公开了一种用于制造浅沟槽隔离结构的方法。 该方法包括以下步骤：（a）提供衬底; （b）在衬底中形成沟槽; （c）在沟槽中形成硅层; 和（d）进行氧化处理以将硅层的表面部分地转变为氧化物层。

公开(公告)号：US09034705B2

公开(公告)日：2015-05-19

申请号：US13850887

申请日：2013-03-26

Applicant: United Microelectronics Corp.

Inventor： Tsai-Yu Wen ,  Tsuo-Wen Lu ,  Yu-Ren Wang ,  Chin-Cheng Chien ,  Tien-Wei Yu ,  Hsin-Kuo Hsu ,  Yu-Shu Lin ,  Szu-Hao Lai ,  Ming-Hua Chang

IPC: H01L21/8238 ,  H01L21/8234

CPC classification number: H01L21/823814 ,  H01L21/823412 ,  H01L21/823425 ,  H01L21/823807 ,  Y10S438/938

Abstract: A method of forming a semiconductor device is disclosed. At least one gate structure is provided on a substrate, wherein the gate structure includes a first spacer formed on a sidewall of a gate. A first disposable spacer material layer is deposited on the substrate covering the gate structure. The first disposable spacer material layer is etched to form a first disposable spacer on the first spacer. A second disposable spacer material layer is deposited on the substrate covering the gate structure. The second disposable spacer material layer is etched to form a second disposable spacer on the first disposable spacer. A portion of the substrate is removed, by using the first and second disposable spacers as a mask, so as to form two recesses in the substrate beside the gate structure. A stress-inducing layer is formed in the recesses.

Abstract translation: 公开了一种形成半导体器件的方法。 至少一个栅极结构设置在衬底上，其中栅极结构包括形成在栅极的侧壁上的第一间隔物。 在覆盖栅极结构的衬底上沉积第一一次性间隔物层。 第一一次性间隔物材料层被蚀刻以在第一间隔物上形成第一一次性间隔物。 在覆盖栅极结构的衬底上沉积第二一次性间隔物材料层。 蚀刻第二一次性间隔材料层以在第一一次性间隔件上形成第二一次性间隔件。 通过使用第一和第二一次性间隔件作为掩模来去除衬底的一部分，以在栅极结构旁边的衬底中形成两个凹部。 在凹部中形成应力诱导层。

公开(公告)号：US20140159211A1

公开(公告)日：2014-06-12

申请号：US13710382

申请日：2012-12-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chien-Liang Lin ,  Yu-Ren Wang ,  Ying-Wei Yen

IPC: H01L21/02 ,  H01L21/441 ,  H01L29/06

CPC classification number: H01L21/28185 ,  H01L21/02164 ,  H01L21/02332 ,  H01L21/02337 ,  H01L21/0234 ,  H01L21/28202 ,  H01L21/3105 ,  H01L21/31155 ,  H01L21/441 ,  H01L29/0603 ,  H01L29/4966 ,  H01L29/51 ,  H01L29/513 ,  H01L29/517 ,  H01L29/66545 ,  H01L29/78

Abstract: A semiconductor structure includes a dielectric layer located on a substrate, wherein the dielectric layer includes nitrogen atoms, and the concentration of the nitrogen atoms in the dielectric layer is lower than 5% at a location wherein the distance between this location in the dielectric layer to the substrate is less than 20% of the thickness of the dielectric layer. Moreover, the present invention provides a semiconductor process including the following steps: a dielectric layer is formed on a substrate. Two annealing processes are performed in-situly on the dielectric layer, wherein the two annealing processes have different imported gases and different annealing temperatures.

Abstract translation: 半导体结构包括位于基板上的电介质层，其中介电层包括氮原子，并且介电层中氮原子的浓度低于5％，其中介电层中该位置之间的距离与 基板的厚度小于电介质层厚度的20％。 此外，本发明提供一种包括以下步骤的半导体工艺：在基板上形成电介质层。 在电介质层上进行两个退火工艺，其中两个退火工艺具有不同的进口气体和不同的退火温度。