-
公开(公告)号:US20240363742A1
公开(公告)日:2024-10-31
申请号:US18309320
申请日:2023-04-28
发明人: Debdas Pal , Parshant Kumar , Stephen Bilotta , Timothy E. Boles
IPC分类号: H01L29/737 , H01L29/06
CPC分类号: H01L29/737 , H01L29/0619
摘要: The reduction of feedback capacitance in active semiconductor devices, such as the reduction in collector to base capacitance in transistors, is described. In one example, a transistor includes a substrate, an active region of the transistor in the substrate, a dielectric layer over a top surface of the substrate, and an interconnect region. The active region includes a base contact over the active region. The interconnect region includes a conductive interconnect that extends over the dielectric layer and is electrically coupled with the base contact. The interconnect region also includes a semiconductor junction region extending under the conductive interconnect in an area of the substrate outside of the active region. The addition of the semiconductor junction region under the conductive interconnect reduces the total collector to base capacitance in the transistor.
-
公开(公告)号:US12047041B2
公开(公告)日:2024-07-23
申请号:US17490798
申请日:2021-09-30
发明人: Shunji Yoshimi , Yuji Takematsu , Yukiya Yamaguchi , Takanori Uejima , Satoshi Goto , Satoshi Arayashiki
IPC分类号: H03F3/21 , H01L23/522 , H01L23/538 , H01L25/065 , H01L29/737 , H03F3/195
CPC分类号: H03F3/21 , H01L23/5226 , H01L23/5383 , H01L25/0655 , H01L25/0657 , H01L29/7371 , H01L2225/06517 , H03F2200/294 , H03F2200/451
摘要: A semiconductor devices comprises a first member including a first circuit partially formed by an elemental semiconductor element at a surface layer, a first conductive raised portion at the first member, and a second member smaller than the first member in plan view joined to the first member. The second member includes a second circuit partially formed by a compound semiconductor element. A second conductive raised portion is at the second member. A power amplifier includes a first-stage amplifier circuit included in the first or second circuit and a second-stage amplifier circuit included in the second circuit. The first circuit includes a first switch for inputting to the first-stage amplifier circuit a radio-frequency signal inputted to a selected contact, a control circuit to control the first- and second-stage amplifier circuits, and a second switch for outputting from a selected contact a radio-frequency signal outputted by the second-stage amplifier circuit.
-
公开(公告)号:US12040323B2
公开(公告)日:2024-07-16
申请号:US17394252
申请日:2021-08-04
发明人: Yasunari Umemoto , Shaojun Ma , Shigeki Koya , Kenji Sasaki
IPC分类号: H01L27/06 , H01L29/737 , H03F3/19 , H03F3/21
CPC分类号: H01L27/0647 , H01L29/737 , H03F3/19 , H03F3/21
摘要: Each of cells arranged on a substrate surface along a first direction includes at least one unit transistor. Collector electrodes are arranged between two adjacent cells. A first cell, which is at least one of the cells, includes unit transistors arranged along the first direction. The unit transistors are connected in parallel to each another. In the first cell, the base electrode and the emitter electrode in each unit transistor are arranged along the first direction, and the order of arrangement of the base electrode and the emitter electrode is the same among the unit transistors. When looking at one first cell, a maximum value of distances in the first direction between the emitter electrodes of two adjacent unit transistors in the first cell being looked at is shorter than ½ of a shorter one of distances between the first cell being looked at and adjacent cells.
-
公开(公告)号:US20240234552A1
公开(公告)日:2024-07-11
申请号:US18527890
申请日:2023-12-04
申请人: NXP B.V.
IPC分类号: H01L29/737 , H01L29/165 , H01L29/66
CPC分类号: H01L29/7371 , H01L29/165 , H01L29/66242
摘要: Disclosed is a method of manufacturing a silicon bipolar junction transistor device, the method comprising a sequence of steps including: depositing a polysilicon layer over at least a device region; depositing a dielectric layer over the polysilicon layer; patterning a photoresist layer and etching a window in the dielectric layer and the polysilicon layer through an opening in the photoresist layer; etching a SiGe layer stack through the window, to expose a silicon layer thereunder; patterning a further photoresist layer to expose at least the window; and doping the silicon layer by ion implantation through the window to form a base region. A corresponding BJT device is also disclosed.
-
公开(公告)号:US20240222477A1
公开(公告)日:2024-07-04
申请号:US18438442
申请日:2024-02-10
发明人: Chao-Hsing HUANG , Yu-Chung CHIN , Kai-Yu CHEN
IPC分类号: H01L29/737 , H01L23/66 , H01L29/08 , H01L29/205 , H03F3/19 , H03F3/21
CPC分类号: H01L29/737 , H01L23/66 , H01L29/0821 , H01L29/205 , H03F3/19 , H03F3/21 , H01L2223/6644
摘要: Provided is a high ruggedness heterojunction bipolar transistor (HBT), including a substrate, a sub-collector layer, collector layer, a base layer, and an emitter layer. The collector layer includes a InGaP layer or a wide bandgap layer. The collector layer includes III-V semiconductor material. The bandgap of the wide bandgap layer is greater than that of GaAs.
-
公开(公告)号:US11990535B2
公开(公告)日:2024-05-21
申请号:US17511613
申请日:2021-10-27
IPC分类号: H01L29/737 , H01L21/02 , H01L21/225 , H01L29/08 , H01L29/10 , H01L29/165 , H01L29/66
CPC分类号: H01L29/737 , H01L21/02532 , H01L21/2251 , H01L29/0808 , H01L29/0817 , H01L29/0821 , H01L29/1008 , H01L29/165 , H01L29/66242
摘要: Disclosed is a semiconductor structure including a lateral heterojunction bipolar transistor (HBT). The structure includes a substrate (e.g., a silicon substrate), an insulator layer on the substrate, and a semiconductor layer (e.g., a silicon germanium layer) on the insulator layer. The structure includes a lateral HBT with three terminals including a collector, an emitter, and a base, which is positioned laterally between the collector and the emitter and which can include a silicon germanium intrinsic base region for improved performance. Additionally, the collector and/or the emitter includes: a first region, which is epitaxially grown within a trench that extends through the semiconductor layer and the insulator layer to the substrate; and a second region, which is epitaxially grown on the first region. The connection(s) of the collector and/or the emitter to the substrate effectively form thermal exit path(s) and minimize self-heating. Also disclosed is a method for forming the structure.
-
公开(公告)号:US11978786B2
公开(公告)日:2024-05-07
申请号:US17495588
申请日:2021-10-06
发明人: Isao Obu , Yasunari Umemoto , Masahiro Shibata , Shigeki Koya , Masao Kondo , Takayuki Tsutsui
IPC分类号: H01L29/737 , H01L21/02 , H01L21/285 , H01L21/306 , H01L21/308 , H01L21/311 , H01L23/00 , H01L27/102 , H01L29/08 , H01L29/10 , H01L29/205 , H01L29/417 , H01L29/423 , H01L29/45 , H01L29/66 , H01L29/735 , H03F1/30 , H03F1/56 , H03F3/195 , H03F3/21 , H03F3/213 , H03F3/24
CPC分类号: H01L29/7371 , H01L21/0217 , H01L21/02271 , H01L21/28575 , H01L21/30612 , H01L21/308 , H01L21/31111 , H01L24/00 , H01L29/0813 , H01L29/0817 , H01L29/0826 , H01L29/1004 , H01L29/205 , H01L29/41708 , H01L29/42304 , H01L29/66318 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/213 , H03F3/245 , H01L29/452 , H03F1/302 , H03F2200/222 , H03F2200/267 , H03F2200/318 , H03F2200/387 , H03F2200/451
摘要: A bipolar transistor includes a collector layer, a base layer, and an emitter layer that are formed in this order on a compound semiconductor substrate. The emitter layer is disposed inside an edge of the base layer in plan view. A base electrode is disposed on partial regions of the emitter layer and the base layer so as to extend from an inside of the emitter layer to an outside of the base layer in plan view. An insulating film is disposed between the base electrode and a portion of the base layer, with the portion not overlapping the emitter layer. An alloy layer extends from the base electrode through the emitter layer in a thickness direction and reaches the base layer. The alloy layer contains at least one element constituting the base electrode and elements constituting the emitter layer and the base layer.
-
公开(公告)号:US11949018B2
公开(公告)日:2024-04-02
申请号:US18068438
申请日:2022-12-19
IPC分类号: H01L21/00 , H01L29/20 , H01L29/66 , H01L29/737 , H01L29/74 , H01L29/786 , H01L49/02 , H10B53/30 , H10B12/00
CPC分类号: H01L29/78618 , H01L28/56 , H01L28/57 , H01L28/60 , H01L28/65 , H01L29/2003 , H01L29/6684 , H01L29/7375 , H01L29/7408 , H01L29/7869 , H10B53/30 , H10B12/312 , H10B12/36
摘要: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer. The capacitor stack further comprises first and second barrier metal layers on respective ones of the first and second crystalline conductive oxide electrodes on opposing sides of the polar layer
-
公开(公告)号:US20240079450A1
公开(公告)日:2024-03-07
申请号:US18240364
申请日:2023-08-31
发明人: Yu-Chung CHIN , Zong-Lin LI , Chao-Hsing HUANG
IPC分类号: H01L29/08 , H01L29/205 , H01L29/737
CPC分类号: H01L29/0821 , H01L29/205 , H01L29/7371
摘要: A heterojunction bipolar transistor structure is provided, including a substrate and a multi-layer structure formed on the substrate. The multi-layer structure includes a current clamping layer, and the current clamping layer can be disposed in a collector layer, disposed in a sub-collector layer, or interposed between a collector layer and a sub-collector layer. An electron affinity of the current clamping layer is less than an electron affinity of an epitaxial layer formed on the current clamping layer.
-
公开(公告)号:US11908943B2
公开(公告)日:2024-02-20
申请号:US18181426
申请日:2023-03-09
IPC分类号: H01L21/00 , H01L29/786 , H01L29/66 , H01L29/20 , H01L29/74 , H01L29/737 , H01L49/02 , H10B53/30 , H10B12/00
CPC分类号: H01L29/78618 , H01L28/56 , H01L28/57 , H01L28/60 , H01L28/65 , H01L29/2003 , H01L29/6684 , H01L29/7375 , H01L29/7408 , H01L29/7869 , H10B53/30 , H10B12/312 , H10B12/36
摘要: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer. The capacitor stack further comprises first and second barrier metal layers on respective ones of the first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
-
-
-
-
-
-
-
-
-