公开(公告)号：US6083803A

公开(公告)日：2000-07-04

申请号：US32254

申请日：1998-02-27

申请人： Mark Fischer ,  John K. Zahurak ,  Thomas M. Graettinger ,  Kunal Parekh

发明人： Mark Fischer ,  John K. Zahurak ,  Thomas M. Graettinger ,  Kunal Parekh

IPC分类号： H01L21/302 ,  G03F7/075 ,  G03F7/16 ,  H01L21/3065 ,  H01L21/768 ,  H01L21/8242 ,  H01L27/108 ,  H01L21/20

CPC分类号： H01L27/10888 ,  G03F7/0757 ,  G03F7/167 ,  H01L21/76838 ,  H01L27/10852

摘要： Semiconductor processing methods of forming conductive projections and methods of increasing alignment tolerances are described. In one implementation, a conductive projection is formed over a substrate surface area and includes an upper surface and a side surface joined therewith to define a corner region. The corner region of the conductive projection is subsequently beveled to increase an alignment tolerance relative thereto. In another implementation, a conductive plug is formed over a substrate node location between a pair of conductive lines and has an uppermost surface. Material of the conductive plug is unevenly removed to define a second uppermost surface, at least a portion of which is disposed elevationally higher than a conductive line. In one aspect, conductive plug material can be removed by facet etching the conductive plug. In another aspect, conductive plug material is unevenly doped with dopant, and conductive plug material containing greater concentrations of dopant is etched at a greater rate than plug material containing lower concentrations of dopant.

公开(公告)号：US06309973B1

公开(公告)日：2001-10-30

申请号：US09507193

申请日：2000-02-18

申请人： Mark Fischer ,  John K. Zahurak ,  Thomas M. Graettinger ,  Kunal Parekh

发明人： Mark Fischer ,  John K. Zahurak ,  Thomas M. Graettinger ,  Kunal Parekh

IPC分类号： H01L21302

CPC分类号： H01L27/10888 ,  G03F7/0757 ,  G03F7/167 ,  H01L21/76838 ,  H01L27/10852

摘要： Semiconductor processing methods of forming conductive projections and methods of increasing alignment tolerances are described. In one implementation, a conductive projection is formed over a substrate surface area and includes an upper surface and a side surface joined therewith to define a corner region. The corner region of the conductive projection is subsequently beveled to increase an alignment tolerance relative thereto. In another implementation, a conductive plug is formed over a substrate node location between a pair of conductive lines and has an uppermost surface. Material of the conductive plug is unevenly removed to define a second uppermost surface, at least a, portion of which is disposed elevationally higher than a conductive line. In one aspect, conductive plug material can be removed by facet etching the conductive plug. In another aspect, conductive plug material is unevenly doped with dopant, and conductive plug material containing greater concentrations of dopant is etched at a greater rate than plug material containing lower concentrations of dopant.

摘要翻译： 描述形成导电突起的半导体加工方法和增加对准公差的方法。 在一个实施方案中，导电突起形成在衬底表面区域上，并且包括与其连接的上表面和侧表面以限定拐角区域。 导电突起的角区域随后被倒角以增加相对于其的对准公差。 在另一实施方案中，导电插塞形成在一对导线之间的衬底节点位置之上并且具有最上表面。 导电插塞的材料被不均匀地移除以限定第二最上表面，其中至少一部分的表面布置在高于导电线的高度上。 在一个方面，可以通过刻蚀导电插塞去除导电插塞材料。 在另一方面，导电插塞材料用掺杂剂不均匀掺杂，并且以比含有较低浓度掺杂剂的插塞材料更大的速率蚀刻含有较大浓度掺杂剂的导电插塞材料。

公开(公告)号：US07119397B2

公开(公告)日：2006-10-10

申请号：US10768081

申请日：2004-02-02

申请人： Mark Fischer ,  Charles H. Dennison ,  Fawad Ahmed ,  Richard H. Lane ,  John K. Zahurak ,  Kunal R. Parekh

发明人： Mark Fischer ,  Charles H. Dennison ,  Fawad Ahmed ,  Richard H. Lane ,  John K. Zahurak ,  Kunal R. Parekh

IPC分类号： H01L29/06

CPC分类号： H01L29/6659 ,  H01L21/2652 ,  H01L21/28247 ,  H01L29/6656

摘要： A double blanket ion implant method for forming diffusion regions in memory array devices, such as a MOSFET access device is disclosed. The method provides a semiconductor substrate with a gate structure formed on its surface Next, a first pair of diffusion regions are formed in a region adjacent to the channel region by a first blanket ion implantation process. The first blanket ion implantation process has a first energy level and dose. The device is subjected to oxidizing conditions, which form oxidized sidewalls on the gate structure. A second blanket ion implantation process is conducted at the same location as the first ion implantation process adding additional dopant to the diffusion regions. The second blanket ion implantation process has a second energy level and dose. The resultant diffusion regions provide the device with improved static refresh performance over prior art devices. In addition, the first and second energy levels and doses are substantially lower than an energy level and dose used in a prior art single implantation process.

摘要翻译： 公开了一种用于在诸如MOSFET访问装置的存储器阵列器件中形成扩散区的双层覆盖离子注入方法。 该方法提供了在其表面上形成栅极结构的半导体衬底。接下来，通过第一覆盖离子注入工艺在与沟道区相邻的区域中形成第一对扩散区。 第一次毯式离子注入工艺具有第一能级和剂量。 该器件经受氧化条件，其在栅极结构上形成氧化的侧壁。 在与第一离子注入工艺相同的位置处进行第二覆盖离子注入工艺，向扩散区域添加额外的掺杂剂。 第二次毯子离子注入过程具有第二能量水平和剂量。 所得到的扩散区域提供了比现有技术的装置更好的静态刷新性能的装置。 此外，第一和第二能量水平和剂量基本上低于现有技术单一植入过程中使用的能级和剂量。

公开(公告)号：US06372601B1

公开(公告)日：2002-04-16

申请号：US09146838

申请日：1998-09-03

申请人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

发明人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

IPC分类号： H01L21762

CPC分类号： H01L21/76232 ,  H01L21/0332 ,  H01L21/76235

摘要： In one aspect, the invention includes an isolation region forming method comprising: a) forming an oxide layer over a substrate; b) forming a nitride layer over the oxide layer, the nitride layer and oxide layer having a pattern of openings extending therethrough to expose portions of the underlying substrate; c) etching the exposed portions of the underlying substrate to form openings extending into the substrate; d) after etching the exposed portions of the underlying substrate, removing portions of the nitride layer while leaving some of the nitride layer remaining over the substrate; and e) after removing portions of the nitride layer, forming oxide within the openings in the substrate, the oxide within the openings forming at least portions of isolation regions. In another aspect, the invention includes an isolation region forming method comprising: a) forming a silicon nitride layer over a substrate; b) forming a masking layer over the silicon nitride layer; c) forming a pattern of openings extending through the masking layer to the silicon nitride layer; d) extending the openings through the silicon nitride layer to the underlying substrate, the silicon nitride layer having edge regions proximate the openings and having a central region between the edge regions; e) extending the openings into the underlying substrate; f) after extending the openings into the underlying substrate, reducing a thickness of the silicon nitride layer at the edge regions to thin the edge regions relative to the central region; and g) forming oxide within the openings.

公开(公告)号：US20050218474A1

公开(公告)日：2005-10-06

申请号：US11140859

申请日：2005-05-31

申请人： Mark Fischer ,  Zhiping Yin ,  Thomas Glass ,  Kunal Parekh ,  Gurtej Sandhu

发明人： Mark Fischer ,  Zhiping Yin ,  Thomas Glass ,  Kunal Parekh ,  Gurtej Sandhu

IPC分类号： H01L21/82 ,  H01L21/8222 ,  H01L23/525 ,  H01L29/00

CPC分类号： H01L23/5256 ,  H01L23/5258 ,  H01L2924/0002 ,  H01L2924/00

摘要： The present invention relates to a laser fuse. The laser fuse comprises an element comprising a heat conductive material. The fuse also includes an absorption element comprising a material with an adjustable capacity for heat or light absorption that overlays the heat conductive element. The fuse also includes an outer insulating element that overlays and encloses the heat conductive element and the absorption element.

摘要翻译： 本发明涉及一种激光熔丝。 激光熔丝包括包含导热材料的元件。 保险丝还包括吸收元件，该吸收元件包括具有与热传导元件重叠的热或光吸收的可调节容量的材料。 保险丝还包括覆盖并包围导热元件和吸收元件的外绝缘元件。

公开(公告)号：US5789304A

公开(公告)日：1998-08-04

申请号：US741832

申请日：1996-10-31

申请人： Mark Fischer ,  Mark Jost ,  Kunal Parekh

发明人： Mark Fischer ,  Mark Jost ,  Kunal Parekh

IPC分类号： H01L21/02 ,  H01L21/8242 ,  H01L21/20

CPC分类号： H01L27/10852 ,  H01L28/40 ,  Y10S148/02

摘要： A semiconductor processing method of forming a stacked container capacitor includes, a) providing a pair of spaced conductive runners relative to a substrate, the conductive runners respectively having electrically insulative sidewall spacers and an electrically insulative cap, the caps having respective outer surfaces; b) providing a node between the runners to which electrical connection to a capacitor is to be made; c) providing an electrically conductive pillar in electrical connection with the node, the pillar projecting outwardly relative to the node between the runners and having a first outer surface positioned outwardly of both runner caps, the pillar completely filling the space between the pair of runners at the location where the pillar is located; d) providing an insulating dielectric layer outwardly of the caps and the conductive pillar; e) etching a container opening through the insulating dielectric layer to outwardly expose the conductive pillar first outer surface; f) etching the exposed conductive pillar to define a pillar second outer surface which is closer to the node than the pillar first outer surface and to deepen the container opening; g) providing an electrically conductive storage node container layer within the container opening over the second outer conductive pillar surface; h) providing a capacitor dielectric layer over the capacitor storage node layer; and i) providing an electrically conductive outer capacitor plate over the capacitor dielectric layer. Such a capacitor construction is also disclosed.

公开(公告)号：US5962885A

公开(公告)日：1999-10-05

申请号：US935966

申请日：1997-09-23

申请人： Mark Fischer ,  Mark Jost ,  Kunal Parekh

发明人： Mark Fischer ,  Mark Jost ,  Kunal Parekh

IPC分类号： H01L21/02 ,  H01L21/8242 ,  H01L27/108

CPC分类号： H01L27/10852 ,  H01L28/40 ,  Y10S148/02

摘要： The invention encompasses capacitor constructions. In one aspect, the invention includes a stacked capacitor construction comprising: a) a substrate; b) an electrically conductive runner provided on the substrate, the runner having an outer conductive surface; c) a node on the substrate adjacent the electrically conductive runner; d) an electrically conductive pillar in electrical connection with the node, the pillar projecting outwardly relative to the node adjacent the conductive runner, the pillar having an outer surface; e) an electrically conductive storage node container layer in electrical connection with the pillar; f) a capacitor dielectric layer over the capacitor storage node layer; and g) an electrically conductive outer capacitor plate over the capacitor dielectric layer; and h) the pillar outer surface being elevationally inward of the runner outer surface.

摘要翻译： 本发明包括电容器结构。 一方面，本发明包括堆叠式电容器结构，其包括：a）衬底; b）设置在所述基底上的导电流道，所述流道具有外导电表面; c）邻近导电流道的衬底上的节点; d）与所述节点电连接的导电柱，所述柱相对于邻近导电流道的节点向外突出，所述柱具有外表面; e）与所述支柱电连接的导电存储节点容器层; f）电容器存储节点层上的电容器介电层; 和g）电容器介电层上的导电外电容器板; 以及h）所述柱外表面位于所述流道外表面的正上方。

公开(公告)号：US06967146B2

公开(公告)日：2005-11-22

申请号：US10799794

申请日：2004-03-11

申请人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

发明人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

IPC分类号： H01L21/302 ,  H01L21/033 ,  H01L21/3065 ,  H01L21/76 ,  H01L21/762

CPC分类号： H01L21/76232 ,  H01L21/0332 ,  H01L21/76235

摘要： In one aspect, the invention includes an isolation region forming method comprising: a) forming an oxide layer over a substrate; b) forming a nitride layer over the oxide layer, the nitride layer and oxide layer having a pattern of openings extending therethrough to expose portions of the underlying substrate; c) etching the exposed portions of the underlying substrate to form openings extending into the substrate; d) after etching the exposed portions of the underlying substrate, removing portions of the nitride layer while leaving some of the nitride layer remaining over the substrate; and e) after removing portions of the nitride layer, forming oxide within the openings in the substrate, the oxide within the openings forming at least portions of isolation regions. In another aspect, the invention includes an isolation region forming method comprising: a) forming a silicon nitride layer over a substrate; b) forming a masking layer over the silicon nitride layer; c) forming a pattern of openings extending through the masking layer to the silicon nitride layer; d) extending the openings through the silicon nitride layer to the underlying substrate, the silicon nitride layer having edge regions proximate the openings and having a central region between the edge regions; e) extending the openings into the underlying substrate; f) after extending the openings into the underlying substrate, reducing a thickness of the silicon nitride layer at the edge regions to thin the edge regions relative to the central region; and g) forming oxide within the openings.

摘要翻译： 一方面，本发明包括一种隔离区形成方法，包括：a）在衬底上形成氧化物层; b）在所述氧化物层上形成氮化物层，所述氮化物层和氧化物层具有延伸穿过其中的开口图案以暴露所述下面的衬底的部分; c）蚀刻下面的衬底的暴露部分以形成延伸到衬底中的开口; d）在蚀刻下面的衬底的暴露部分之后，去除氮化物层的部分，同时留下一些保留在衬底上的氮化物层; 以及e）在去除所述氮化物层的部分之后，在所述衬底的所述开口内形成氧化物，所述开口内的氧化物形成至少部分隔离区域。 另一方面，本发明包括一种隔离区形成方法，包括：a）在衬底上形成氮化硅层; b）在氮化硅层上形成掩模层; c）形成延伸穿过掩模层的开口图案到氮化硅层; d）将开口穿过氮化硅层延伸到下面的衬底，氮化硅层具有靠近开口的边缘区域，并且在边缘区域之间具有中心区域; e）将开口延伸到下面的基底中; f）在将开口延伸到下面的基底之后，减小边缘区域处的氮化硅层的厚度，以使边缘区域相对于中心区域变薄; 和g）在开口内形成氧化物。

公开(公告)号：US06593206B2

公开(公告)日：2003-07-15

申请号：US10076684

申请日：2002-02-14

申请人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

发明人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

IPC分类号： H01L2176

CPC分类号： H01L21/76232 ,  H01L21/0332 ,  H01L21/76235

摘要： In one aspect, the invention includes an isolation region forming method comprising: a) forming an oxide layer over a substrate; b) forming a nitride layer over the oxide layer, the nitride layer and oxide layer having a pattern of openings extending therethrough to expose portions of the underlying substrate; c) etching the exposed portions of the underlying substrate to form openings extending into the substrate; d) after etching the exposed portions of the underlying substrate, removing portions of the nitride layer while leaving some of the nitride layer remaining over the substrate; and e) after removing portions of the nitride layer, forming oxide within the openings in the substrate, the oxide within the openings forming at least portions of isolation regions. In another aspect, the invention includes an isolation region forming method comprising: a) forming a silicon nitride layer over a substrate; b) forming a masking layer over the silicon nitride layer; c) forming a pattern of openings extending through the masking layer to the silicon nitride layer; d) extending the openings through the silicon nitride layer to the underlying substrate, the silicon nitride layer having edge regions proximate the openings and having a central region between the edge regions; e) extending the openings into the underlying substrate; f) after extending the openings into the underlying substrate, reducing a thickness of the silicon nitride layer at the edge regions to thin the edge regions relative to the central region; and g) forming oxide within the openings.

公开(公告)号：US06710420B2

公开(公告)日：2004-03-23

申请号：US10241923

申请日：2002-09-11

申请人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

发明人： David L. Dickerson ,  Richard H. Lane ,  Charles H. Dennison ,  Kunal R. Parekh ,  Mark Fischer ,  John K. Zahurak

IPC分类号： H01L2176

CPC分类号： H01L21/76232 ,  H01L21/0332 ,  H01L21/76235

摘要： In one aspect, the invention includes an isolation region forming method comprising: a) forming an oxide layer over a substrate; b) forming a nitride layer over the oxide layer, the nitride layer and oxide layer having a pattern of openings extending therethrough to expose portions of the underlying substrate; c) etching the exposed portions of the underlying substrate to form openings extending into the substrate; d) after etching the exposed portions of the underlying substrate, removing portions of the nitride layer while leaving some of the nitride layer remaining over the substrate; and e) after removing portions of the nitride layer, forming oxide within the openings in the substrate, the oxide within the openings forming at least portions of isolation regions. In another aspect, the invention includes an isolation region forming method comprising: a) forming a silicon nitride layer over a substrate; b) forming a masking layer over the silicon nitride layer; c) forming a pattern of openings extending through the masking layer to the silicon nitride layer; d) extending the openings through the silicon nitride layer to the underlying substrate, the silicon nitride layer having edge regions proximate the openings and having a central region between the edge regions; e) extending the openings into the underlying substrate; f) after extending the openings into the underlying substrate, reducing a thickness of the silicon nitride layer at the edge regions to thin the edge regions relative to the central region; and g) forming oxide within the openings.

摘要翻译： 一方面，本发明包括一种隔离区形成方法，包括：a）在衬底上形成氧化物层; b）在所述氧化物层上形成氮化物层，所述氮化物层和氧化物层具有延伸穿过其中的开口图案以暴露所述下面的衬底的部分; c）蚀刻下面的衬底的暴露部分以形成延伸到衬底中的开口; d）在蚀刻下面的衬底的暴露部分之后，去除氮化物层的部分，同时留下一些保留在衬底上的氮化物层; 以及e）在去除所述氮化物层的部分之后，在所述衬底的所述开口内形成氧化物，所述开口内的氧化物形成至少部分隔离区域。 另一方面，本发明包括一种隔离区形成方法，包括：a）在衬底上形成氮化硅层; b）在氮化硅层上形成掩模层; c）形成延伸穿过掩模层的开口图案到氮化硅层; d）将开口穿过氮化硅层延伸到下面的衬底，氮化硅层具有靠近开口的边缘区域，并且在边缘区域之间具有中心区域; e）将开口延伸到下面的基底中; f）在将开口延伸到下面的基底之后，减小边缘区域处的氮化硅层的厚度，以使边缘区域相对于中心区域变薄; 和g）在开口内形成氧化物。