公开(公告)号：US09105465B2

公开(公告)日：2015-08-11

申请号：US13053803

申请日：2011-03-22

申请人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Timothy Dooling Sullivan

发明人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Timothy Dooling Sullivan

IPC分类号： H01L29/02 ,  H01L21/02

CPC分类号： H01L21/02021

摘要： The present invention relates to a method for minimizing breakage of wafers during or after a wafer thinning process. A method of forming a rounded edge to the portion of a wafer remaining after surface grinding process is provided. The method comprises providing a semiconductor wafer having an edge and forming a recess in the edge of the wafer using any suitable mechanical or chemical process. The method further comprises forming a substantially continuous curved shape for at least the edge of the wafer located above the recess. Advantageously, the shape of the wafer is formed prior to the backside grind process to prevent problems caused by the otherwise presence of a sharp edge during the backside grind process.

摘要翻译： 本发明涉及一种在晶圆薄化过程中或之后使晶片断裂最小化的方法。 提供了在表面研磨处理之后残留的晶片部分形成圆形边缘的方法。 该方法包括提供具有边缘的半导体晶片，并且使用任何合适的机械或化学过程在晶片的边缘中形成凹陷。 该方法还包括形成至少位于凹部上方的晶片的边缘的基本连续的弯曲形状。 有利地，在背面研磨处理之前形成晶片的形状，以防止在背面研磨过程期间另外存在锋利边缘引起的问题。

公开(公告)号：US20120241916A1

公开(公告)日：2012-09-27

申请号：US13053803

申请日：2011-03-22

申请人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Timothy Dooling Sullivan

发明人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Timothy Dooling Sullivan

IPC分类号： H01L29/02 ,  H01L21/302

CPC分类号： H01L21/02021

摘要： The present invention relates to a method for minimizing breakage of wafers during or after a wafer thinning process. A method of forming a rounded edge to the portion of a wafer remaining after surface grinding process is provided. The method comprises providing a semiconductor wafer having an edge and forming a recess in the edge of the wafer using any suitable mechanical or chemical process. The method further comprises forming a substantially continuous curved shape for at least the edge of the wafer located above the recess. Advantageously, the shape of the wafer is formed prior to the backside grind process to prevent problems caused by the otherwise presence of a sharp edge during the backside grind process.

摘要翻译： 本发明涉及一种在晶圆薄化过程中或之后使晶片断裂最小化的方法。 提供了在表面研磨处理之后残留的晶片部分形成圆形边缘的方法。 该方法包括提供具有边缘的半导体晶片，并且使用任何合适的机械或化学过程在晶片的边缘中形成凹陷。 该方法还包括形成至少位于凹部上方的晶片的边缘的基本连续的弯曲形状。 有利地，在背面研磨处理之前形成晶片的形状，以防止在背面研磨过程期间另外存在锋利边缘引起的问题。

公开(公告)号：US08575007B2

公开(公告)日：2013-11-05

申请号：US13073181

申请日：2011-03-28

申请人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Thomas Anthony Wassick

发明人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Thomas Anthony Wassick

IPC分类号： H01L21/326 ,  H01L21/44

CPC分类号： H01L24/14 ,  G06F17/5068 ,  G06F2217/40 ,  H01L24/03 ,  H01L24/05 ,  H01L24/06 ,  H01L24/11 ,  H01L24/13 ,  H01L2224/0401 ,  H01L2224/05027 ,  H01L2224/05124 ,  H01L2224/05147 ,  H01L2224/05155 ,  H01L2224/05166 ,  H01L2224/05557 ,  H01L2224/05562 ,  H01L2224/05563 ,  H01L2224/05572 ,  H01L2224/05647 ,  H01L2224/06051 ,  H01L2224/06102 ,  H01L2224/13006 ,  H01L2224/13076 ,  H01L2224/131 ,  H01L2224/13147 ,  H01L2224/14051 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10329 ,  H01L2924/00012 ,  H01L2224/05552

摘要： The invention includes embodiments of a method for designing a flip chip and the resulting structure. The starting point is a flip chip with a semiconductor substrate, one or more wiring levels, and a plurality of I/O contact pads (last metal pads/bond pads) for receiving and sending electrical current. There is also a plurality of C4 bumps for connecting the I/O contact pads to another substrate. Then it is determined which of the C4s of the plurality of C4 bumps have a level of susceptibility to electromigration damage that meets or exceeds a threshold level of susceptibility, and in response, plating a conductive structure with a high electrical current carrying capacity (such as a copper pillar, copper pedestal, or partial copper pedestal) onto the corresponding I/O contact pads and adding a solder ball to a top portion of the conductive structure. The resulting structure is a flip chip wherein only a select few C4 bumps use enhanced C4s (such as copper pedestals) reducing the chance of defects.

摘要翻译： 本发明包括用于设计倒装芯片的方法及其结果的实施例。 起点是具有半导体衬底的倒装芯片，一个或多个布线层，以及用于接收和发送电流的多个I / O接触焊盘（最后的金属焊盘/接合焊盘）。 还存在用于将I / O接触焊盘连接到另一衬底的多个C4凸块。 然后，确定多个C4凸块中的哪个C4具有达到或超过阈值磁敏度水平的电迁移损伤的敏感性水平，并且作为响应，电镀具有高电流承载能力的导电结构（例如 铜柱，铜基座或部分铜基座）连接到相应的I / O接触焊盘上，并将焊球添加到导电结构的顶部。 所得到的结构是倒装芯片，其中只有少量的C4凸块使用增强的C4（例如铜基座）来减少缺陷的机会。

公开(公告)号：US20120248604A1

公开(公告)日：2012-10-04

申请号：US13073181

申请日：2011-03-28

申请人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Thomas Anthony Wassick

发明人： Timothy Harrison Daubenspeck ,  Jeffrey P. Gambino ,  Christopher David Muzzy ,  Wolfgang Sauter ,  Thomas Anthony Wassick

IPC分类号： H01L23/488 ,  G06F17/50

CPC分类号： H01L24/14 ,  G06F17/5068 ,  G06F2217/40 ,  H01L24/03 ,  H01L24/05 ,  H01L24/06 ,  H01L24/11 ,  H01L24/13 ,  H01L2224/0401 ,  H01L2224/05027 ,  H01L2224/05124 ,  H01L2224/05147 ,  H01L2224/05155 ,  H01L2224/05166 ,  H01L2224/05557 ,  H01L2224/05562 ,  H01L2224/05563 ,  H01L2224/05572 ,  H01L2224/05647 ,  H01L2224/06051 ,  H01L2224/06102 ,  H01L2224/13006 ,  H01L2224/13076 ,  H01L2224/131 ,  H01L2224/13147 ,  H01L2224/14051 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01023 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10329 ,  H01L2924/00012 ,  H01L2224/05552

摘要： The invention includes embodiments of a method for designing a flip chip and the resulting structure. The starting point is a flip chip with a semiconductor substrate, one or more wiring levels, and a plurality of I/O contact pads (last metal pads/bond pads) for receiving and sending electrical current. There is also a plurality of C4 bumps for connecting the I/O contact pads to another substrate. Then it is determined which of the C4s of the plurality of C4 bumps have a level of susceptibility to electromigration damage that meets or exceeds a threshold level of susceptibility, and in response, plating a conductive structure with a high electrical current carrying capacity (such as a copper pillar, copper pedestal, or partial copper pedestal) onto the corresponding I/O contact pads and adding a solder ball to a top portion of the conductive structure. The resulting structure is a flip chip wherein only a select few C4 bumps use enhanced C4s (such as copper pedestals) reducing the chance of defects.

摘要翻译： 本发明包括用于设计倒装芯片的方法及其结果的实施例。 起点是具有用于接收和发送电流的半导体衬底，一个或多个布线层和多​​个I / O接触焊盘（最后的金属焊盘/接合焊盘）的倒装芯片。 还存在用于将I / O接触焊盘连接到另一衬底的多个C4凸块。 然后，确定多个C4凸块中的哪个C4具有达到或超过阈值磁敏度水平的电迁移损伤的敏感性水平，并且作为响应，电镀具有高电流承载能力的导电结构（例如 铜柱，铜基座或部分铜基座）连接到相应的I / O接触焊盘上，并将焊球添加到导电结构的顶部。 所得到的结构是倒装芯片，其中只有少量的C4凸块使用增强的C4（例如铜基座）来减少缺陷的机会。

公开(公告)号：US07545050B1

公开(公告)日：2009-06-09

申请号：US12183369

申请日：2008-07-31

申请人： Timothy Harrison Daubenspeck ,  Wolfgang Sauter ,  Jeffrey P. Gambino ,  David L. Questad

发明人： Timothy Harrison Daubenspeck ,  Wolfgang Sauter ,  Jeffrey P. Gambino ,  David L. Questad

IPC分类号： H01L23/48

CPC分类号： H01L24/05 ,  H01L23/3171 ,  H01L23/5226 ,  H01L23/53214 ,  H01L23/53228 ,  H01L23/562 ,  H01L24/03 ,  H01L24/13 ,  H01L2224/02125 ,  H01L2224/0401 ,  H01L2224/05005 ,  H01L2224/05008 ,  H01L2224/05022 ,  H01L2224/05082 ,  H01L2224/05096 ,  H01L2224/05124 ,  H01L2224/05147 ,  H01L2224/05556 ,  H01L2224/05558 ,  H01L2224/05567 ,  H01L2224/05572 ,  H01L2224/05582 ,  H01L2224/05655 ,  H01L2224/13007 ,  H01L2224/13022 ,  H01L2224/13027 ,  H01L2224/131 ,  H01L2224/13111 ,  H01L2924/0002 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/14 ,  H01L2924/1433 ,  H01L2924/15787 ,  H01L2924/351 ,  H01L2924/00014 ,  H01L2924/01047 ,  H01L2224/05552 ,  H01L2924/00

摘要： A design structure to provide a package for a semiconductor chip that minimizes the stresses and strains that arise from differential thermal expansion in chip to substrate or chip to card interconnections. An improved set of design structure vias above the final copper metallization level that mitigate shocks during semiconductor assembly and testing. Other embodiments include design structures having varying micro-mechanical support structures that further minimize stress and strain in the semiconductor package.

摘要翻译： 提供用于半导体芯片的封装的设计结构，其使从芯片到衬底或芯片到卡互连的差分热膨胀产生的应力和应变最小化。 在最终铜金属化水平之上的一组改进的设计结构通孔，可减轻半导体组装和测试期间的冲击。 其他实施例包括具有变化的微机械支撑结构的设计结构，其进一步最小化半导体封装中的应力和应变。

公开(公告)号：US07439170B1

公开(公告)日：2008-10-21

申请号：US12044692

申请日：2008-03-07

申请人： Timothy Harrison Daubenspeck ,  Wolfgang Sauter ,  Jeffrey P. Gambino ,  David L. Questad

发明人： Timothy Harrison Daubenspeck ,  Wolfgang Sauter ,  Jeffrey P. Gambino ,  David L. Questad

IPC分类号： H01L21/44

CPC分类号： H01L24/05 ,  H01L23/3171 ,  H01L23/5226 ,  H01L23/53214 ,  H01L23/53228 ,  H01L23/562 ,  H01L24/03 ,  H01L24/13 ,  H01L2224/02125 ,  H01L2224/0401 ,  H01L2224/05005 ,  H01L2224/05008 ,  H01L2224/05022 ,  H01L2224/05082 ,  H01L2224/05096 ,  H01L2224/05124 ,  H01L2224/05147 ,  H01L2224/05556 ,  H01L2224/05558 ,  H01L2224/05567 ,  H01L2224/05572 ,  H01L2224/05582 ,  H01L2224/05655 ,  H01L2224/13007 ,  H01L2224/13022 ,  H01L2224/13027 ,  H01L2224/131 ,  H01L2224/13111 ,  H01L2924/0002 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/14 ,  H01L2924/1433 ,  H01L2924/15787 ,  H01L2924/351 ,  H01L2924/00014 ,  H01L2924/01047 ,  H01L2224/05552 ,  H01L2924/00

摘要： A design structure to provide a package for a semiconductor chip that minimizes the stresses and strains that arise from differential thermal expansion in chip to substrate or chip to card interconnections. An improved set of design structure vias above the final copper metallization level that mitigate shocks during semiconductor assembly and testing. Other embodiments include design structures having varying micro-mechanical support structures that further minimize stress and strain in the semiconductor package.

摘要翻译： 提供用于半导体芯片的封装的设计结构，其使从芯片到衬底或芯片到卡互连的差分热膨胀产生的应力和应变最小化。 在最终铜金属化水平之上的一组改进的设计结构通孔，可减轻半导体组装和测试期间的冲击。 其他实施例包括具有变化的微机械支撑结构的设计结构，其进一步最小化半导体封装中的应力和应变。

公开(公告)号：US08927869B2

公开(公告)日：2015-01-06

申请号：US13444343

申请日：2012-04-11

申请人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Zhong-Xiang He ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

发明人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Zhong-Xiang He ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

IPC分类号： H05K1/00

CPC分类号： H01L24/05 ,  H01B3/306 ,  H01B3/307 ,  H01L21/02118 ,  H01L21/76877 ,  H01L24/03 ,  H01L2224/02166 ,  H01L2224/03462 ,  H01L2224/03831 ,  H01L2224/04042 ,  H01L2224/05009 ,  H01L2224/05124 ,  H01L2224/05624 ,  H01L2924/00014 ,  H01L2224/48

摘要： Wire-bonded semiconductor structures using organic insulating material and methods of manufacture are disclosed. The method includes forming a metal wiring layer in an organic insulator layer. The method further includes forming a protective layer over the organic insulator layer. The method further includes forming a via in the organic insulator layer over the metal wiring layer. The method further includes depositing a metal layer in the via and on the protective layer. The method further includes patterning the metal layer with an etch chemistry that is damaging to the organic insulator layer.

摘要翻译： 公开了使用有机绝缘材料的引线键合半导体结构和制造方法。 该方法包括在有机绝缘体层中形成金属布线层。 该方法还包括在有机绝缘体层上形成保护层。 该方法还包括在金属布线层上的有机绝缘体层中形成通孔。 该方法还包括在通孔中和保护层上沉积金属层。 该方法还包括用对有机绝缘体层有害的蚀刻化学物图案化金属层。

公开(公告)号：US08766439B2

公开(公告)日：2014-07-01

申请号：US12634741

申请日：2009-12-10

申请人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

发明人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

IPC分类号： H01L23/12

CPC分类号： H01L24/11 ,  H01L23/49816 ,  H01L24/13 ,  H01L24/81 ,  H01L2224/1147 ,  H01L2224/11901 ,  H01L2224/11902 ,  H01L2224/13018 ,  H01L2224/13019 ,  H01L2224/13023 ,  H01L2224/13076 ,  H01L2224/13144 ,  H01L2224/13147 ,  H01L2224/13155 ,  H01L2224/1357 ,  H01L2224/136 ,  H01L2224/13609 ,  H01L2224/13611 ,  H01L2224/13613 ,  H01L2224/13618 ,  H01L2224/1362 ,  H01L2224/13639 ,  H01L2224/13647 ,  H01L2224/1601 ,  H01L2224/16237 ,  H01L2224/81191 ,  H01L2224/81193 ,  H01L2224/81801 ,  H01L2924/00013 ,  H01L2924/01005 ,  H01L2924/01013 ,  H01L2924/01022 ,  H01L2924/01024 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/14 ,  H01L2924/19041 ,  H01L2924/351 ,  H01L2924/00014 ,  H01L2924/01028 ,  H01L2224/13099 ,  H01L2924/00012

摘要： Disclosed is a chip and method of forming the chip with improved conductive pads that allow for flexible C4 connections with a chip carrier or with another integrated circuit chip. The pads have a three-dimensional geometric shape (e.g., a pyramid or cone shape) with a base adjacent to the surface of the chip, a vertex opposite the base and, optionally, mushroom-shaped cap atop the vertex. Each pad can include a single layer of conductive material or multiple layers of conductive material (e.g., a wetting layer stacked above a non-wetting layer). The pads can be left exposed to allow for subsequent connection to corresponding solder bumps on a chip carrier or a second chip. Alternatively, solder balls can be positioned on the conductive pads to allow for subsequent connection to corresponding solder-paste filled openings on a chip carrier or a second chip.

摘要翻译： 公开了一种用改进的导电焊盘形成芯片的芯片和方法，其允许与芯片载体或另一个集成电路芯片的柔性C4连接。 垫具有三维几何形状（例如，金字塔或锥形），其具有与芯片表面相邻的基部，与基部相对的顶点以及可选地在顶点顶部的蘑菇形帽。 每个焊盘可以包括单层导电材料或多层导电材料（例如，堆叠在非润湿层上方的润湿层）。 焊盘可以被暴露以允许随后连接到芯片载体或第二芯片上的相应焊料凸块。 或者，焊球可以定位在导电焊盘上，以允许随后连接到芯片载体或第二芯片上相应的焊膏填充的开口。

公开(公告)号：US08546253B1

公开(公告)日：2013-10-01

申请号：US13415902

申请日：2012-03-09

申请人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

发明人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  Wolfgang Sauter ,  Timothy D. Sullivan

IPC分类号： H01L23/498 ,  H01L21/768

CPC分类号： H01L24/05 ,  H01L21/31144 ,  H01L24/03 ,  H01L24/13 ,  H01L2224/02313 ,  H01L2224/0236 ,  H01L2224/02375 ,  H01L2224/034 ,  H01L2224/03622 ,  H01L2224/0381 ,  H01L2224/0391 ,  H01L2224/03914 ,  H01L2224/0401 ,  H01L2224/05548 ,  H01L2224/05567 ,  H01L2224/05624 ,  H01L2224/13022 ,  H01L2224/13024 ,  H01L2224/13027 ,  H01L2224/13111 ,  H01L2224/14104 ,  H01L2924/00014 ,  H01L2924/01083 ,  H01L2924/01049 ,  H01L2924/01047 ,  H01L2924/01029 ,  H01L2924/00012

摘要： The invention provides a semiconductor chip structure having at least one aluminum pad structure and a polyimide buffering layer under the aluminum pad structure, wherein the polyimide buffering layer is self-aligned to the aluminum pad structure, and a method of forming the same. The method includes forming a polyimide buffering layer on a substrate, forming an aluminum pad structure on the buffering layer, and, using the aluminum pad structure as a mask, etching the substrate to remove the polyimide buffering layer from the substrate everywhere except under the aluminum pad structure.

摘要翻译： 本发明提供一种半导体芯片结构，其具有在铝焊盘结构下方的至少一个铝焊盘结构和聚酰亚胺缓冲层，其中聚酰亚胺缓冲层与铝焊盘结构自对准，以及其形成方法。 该方法包括在基板上形成聚酰亚胺缓冲层，在缓冲层上形成铝焊盘结构，并且使用铝焊盘结构作为掩模，蚀刻基板以除去铝以外的其他处理的基板 垫结构。

公开(公告)号：US08508043B2

公开(公告)日：2013-08-13

申请号：US13298183

申请日：2011-11-16

申请人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  David L. Questad ,  Wolfgang Sauter ,  Timothy D. Sullivan

发明人： Timothy H. Daubenspeck ,  Jeffrey P. Gambino ,  Christopher D. Muzzy ,  David L. Questad ,  Wolfgang Sauter ,  Timothy D. Sullivan

IPC分类号： H01L31/00

CPC分类号： H01L23/3171 ,  H01L23/3192 ,  H01L23/562 ,  H01L24/05 ,  H01L24/06 ,  H01L24/13 ,  H01L24/16 ,  H01L24/81 ,  H01L2224/02126 ,  H01L2224/02235 ,  H01L2224/0401 ,  H01L2224/05019 ,  H01L2224/05022 ,  H01L2224/05166 ,  H01L2224/05171 ,  H01L2224/05552 ,  H01L2224/05556 ,  H01L2224/05558 ,  H01L2224/05572 ,  H01L2224/05582 ,  H01L2224/05583 ,  H01L2224/05647 ,  H01L2224/05655 ,  H01L2224/06051 ,  H01L2224/061 ,  H01L2224/0612 ,  H01L2224/06131 ,  H01L2224/13007 ,  H01L2224/13017 ,  H01L2224/13022 ,  H01L2224/13027 ,  H01L2224/13111 ,  H01L2224/1312 ,  H01L2224/14051 ,  H01L2224/141 ,  H01L2224/16225 ,  H01L2224/81191 ,  H01L2224/81801 ,  H01L2924/00 ,  H01L2924/15311 ,  H01L2924/351 ,  H01L2924/3512 ,  H01L2924/01047 ,  H01L2924/01029 ,  H01L2924/01082 ,  H01L2924/01083 ,  H01L2924/01049 ,  H01L2924/00014 ,  H01L2924/01074 ,  H01L2924/00012

摘要： A topographical feature is formed proximate to a conductive bond pad that is used to couple a solder bump to a semiconductor die. The topographical feature is separated from the conductive bond pad by a gap. In one embodiment, the topographical feature is formed at a location that is slightly beyond the perimeter of the solder bump, wherein an edge of the bump is aligned vertically to coincide with the gap separating the conductive bond pad from the topographical feature. The topographical feature provides thickness enhancement of a non-conductive layer disposed over the semiconductor die and the conductive bond pad and stress buffering.

摘要翻译： 形成靠近用于将焊料凸块耦合到半导体管芯的导电接合焊盘的形貌特征。 地形特征与导电接合垫隔开间隙。 在一个实施例中，形貌特征形成在稍微超出焊料凸块周边的位置处，其中凸块的边缘垂直对齐，以将导电接合焊盘与形貌特征分开。 形貌特征提供了设置在半导体管芯上的非导电层的厚度增强和导电接合焊盘和应力缓冲。