公开(公告)号：US20210288150A1

公开(公告)日：2021-09-16

申请号：US17337437

申请日：2021-06-03

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Shin-Chuan Huang ,  Chih-Tung Yeh ,  Chun-Ming Chang ,  Bo-Rong Chen ,  Wen-Jung Liao ,  Chun-Liang Hou

IPC: H01L29/205 ,  H01L29/778 ,  H01L29/423 ,  H01L29/66

Abstract: A high-electron mobility transistor includes a substrate, a GaN channel layer over the substrate, an AlGaN layer over the GaN channel layer, a gate recess in the AlGaN layer, a source region and a drain region on opposite sides of the gate recess, a GaN source layer and a GaN drain layer grown on the AlGaN layer within the source region and the drain region, respectively, a p-GaN gate layer in and on the gate recess; and a re-grown AlGaN film on the AlGaN layer, on the GaN source layer and the GaN drain layer, and on interior surface of the gate recess.

公开(公告)号：US20210175343A1

公开(公告)日：2021-06-10

申请号：US16731058

申请日：2019-12-31

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Bo-Rong Chen ,  Che-Hung Huang ,  Chun-Ming Chang ,  Yi-Shan Hsu ,  Chih-Tung Yeh ,  Shin-Chuan Huang ,  Wen-Jung Liao ,  Chun-Liang Hou

IPC: H01L29/66 ,  H01L29/20 ,  H01L29/778

Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of: forming a first barrier layer on a substrate; forming a p-type semiconductor layer on the first barrier layer; forming a hard mask on the p-type semiconductor layer; patterning the hard mask and the p-type semiconductor layer; and forming a spacer adjacent to the hard mask and the p-type semiconductor layer.

公开(公告)号：US20210143257A1

公开(公告)日：2021-05-13

申请号：US16691616

申请日：2019-11-22

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Shin-Chuan Huang ,  Chih-Tung Yeh ,  Chun-Ming Chang ,  Bo-Rong Chen ,  Wen-Jung Liao ,  Chun-Liang Hou

IPC: H01L29/205 ,  H01L29/778 ,  H01L29/66 ,  H01L29/423

Abstract: A high-electron mobility transistor includes a substrate; a buffer layer over the substrate; a GaN channel layer over the buffer layer; a AlGaN layer over the GaN channel layer; a gate recess in the AlGaN layer; a source region and a drain region on opposite sides of the gate recess; a GaN source layer and a GaN drain layer grown on the AlGaN layer within the source region and the drain region, respectively; and a p-GaN gate layer in and on the gate recess.

公开(公告)号：US11004952B1

公开(公告)日：2021-05-11

申请号：US16699706

申请日：2019-12-01

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Chih-Tung Yeh ,  Shin-Chuan Huang ,  Chun-Ming Chang ,  Bo-Rong Chen ,  Wen-Jung Liao ,  Chun-Liang Hou

IPC: H01L29/66 ,  H01L29/778 ,  H01L21/02 ,  H01L29/40 ,  H01L29/20

Abstract: A high-electron mobility transistor includes a substrate; a buffer layer on the substrate; a AlGaN layer on the buffer layer; a passivation layer on the AlGaN layer; a source region and a drain region on the AlGaN layer; a source layer and a drain layer on the AlGaN layer within the source region and the drain region, respectively; a gate on the AlGaN layer between the source region and a drain region; and a field plate on the gate and the passivation layer. The field plate includes an extension portion that laterally extends to an area between the gate and the drain region. The extension portion has a wave-shaped bottom surface.

公开(公告)号：US20210013334A1

公开(公告)日：2021-01-14

申请号：US16533812

申请日：2019-08-07

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Shin-Chuan Huang ,  Chih-Tung Yeh ,  Chun-Ming Chang ,  Bo-Rong Chen ,  Wen-Jung Liao ,  Chun-Liang Hou

IPC: H01L29/778 ,  H01L29/66 ,  H01L29/20 ,  H01L29/205 ,  H01L21/265

Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of: forming a buffer layer on a substrate; forming a barrier layer on the buffer layer; forming a hard mask on the barrier layer; performing an implantation process through the hard mask to form a doped region in the barrier layer and the buffer layer; removing the hard mask and the barrier layer to form a first trench; forming a gate dielectric layer on the hard mask and into the first trench; forming a gate electrode on the gate dielectric layer; and forming a source electrode and a drain electrode adjacent to two sides of the gate electrode.

公开(公告)号：US09312359B2

公开(公告)日：2016-04-12

申请号：US14821815

申请日：2015-08-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ming-Te Wei ,  Shin-Chuan Huang ,  Yu-Hsiang Hung ,  Po-Chao Tsao ,  Chia-Jui Liang ,  Ming-Tsung Chen ,  Chia-Wen Liang

IPC: H01L29/66 ,  H01L29/78 ,  H01L29/165

CPC classification number: H01L29/66492 ,  H01L29/165 ,  H01L29/6656 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

Abstract: A semiconductor structure includes a gate structure disposed on a substrate and having an outer spacer, a recess disposed in the substrate and adjacent to the gate structure, a doped epitaxial material filling up the recess, a cap layer including an undoped epitaxial material and disposed on the doped epitaxial material, a lightly doped drain disposed below the cap layer and sandwiched between the doped epitaxial material and the cap layer, and a silicide disposed on the cap layer and covering the doped epitaxial material to cover the cap layer together with the outer spacer without directly contacting the lightly doped drain.

公开(公告)号：US20150349088A1

公开(公告)日：2015-12-03

申请号：US14821815

申请日：2015-08-10

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Ming-Te Wei ,  Shin-Chuan Huang ,  Yu-Hsiang Hung ,  Po-Chao Tsao ,  Chia-Jui Liang ,  Ming-Tsung Chen ,  Chia-Wen Liang

IPC: H01L29/66

CPC classification number: H01L29/66492 ,  H01L29/165 ,  H01L29/6656 ,  H01L29/66636 ,  H01L29/7834 ,  H01L29/7848

Abstract: A semiconductor structure includes a gate structure disposed on a substrate and having an outer spacer, a recess disposed in the substrate and adjacent to the gate structure, a doped epitaxial material filling up the recess, a cap layer including an undoped epitaxial material and disposed on the doped epitaxial material, a lightly doped drain disposed below the cap layer and sandwiched between the doped epitaxial material and the cap layer, and a silicide disposed on the cap layer and covering the doped epitaxial material to cover the cap layer together with the outer spacer without directly contacting the lightly doped drain.

Abstract translation: 半导体结构包括设置在基板上并具有外部间隔件的栅极结构，设置在基板中并与栅极结构相邻的凹槽，填充凹部的掺杂的外延材料，包括未掺杂的外延材料的盖层， 所述掺杂的外延材料是设置在所述覆盖层下方并且夹在所述掺杂的外延材料和所述覆盖层之间的轻掺杂漏极，以及设置在所述覆盖层上并覆盖所述掺杂外延材料以与所述外部间隔物一起覆盖所述覆盖层的硅化物 而不直接接触轻掺杂的漏极。