公开(公告)号：US20080202792A1

公开(公告)日：2008-08-28

申请号：US12113195

申请日：2008-04-30

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01B5/00

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components.

公开(公告)号：US6070782A

公开(公告)日：2000-06-06

申请号：US113044

申请日：1998-07-09

Applicant: Peter Jeffrey Brofman ,  Balaram Ghosal ,  Raymond Alan Jackson ,  Kathleen Ann Lidestri ,  Karl J. Puttlitz, Sr. ,  William Edward Sablinski

Inventor： Peter Jeffrey Brofman ,  Balaram Ghosal ,  Raymond Alan Jackson ,  Kathleen Ann Lidestri ,  Karl J. Puttlitz, Sr. ,  William Edward Sablinski

IPC: H01L23/498 ,  H05K3/34 ,  B23K101/38 ,  H01L23/48 ,  H05K1/00

CPC classification number: H01L23/49816 ,  H05K3/3478 ,  H01L2924/0002 ,  H05K2201/10234 ,  H05K2203/0113 ,  H05K2203/0338 ,  H05K2203/041 ,  H05K3/3436

Abstract: An electronic component having a socketable bump grid array comprising shaped-solder coated metallic spheres is provided by a method which comprises positioning solder coated metal spheres in an aligning device having a plurality of openings corresponding to the array, the openings being tapered preferably in the form of a truncated cone with the base of the cone being at the upper surface of the aligning device and having a diameter larger than the diameter of the solder coated metal sphere. The opening is configured so that a sphere positioned in the opening extends partially above the upper surface of the aligning device. The pads of the substrate are then contacted with the positioned spheres and, when the solder is reflowed, the solder forms a bond between the conductive layer on the substrate in contact with the solder-coated metal sphere and takes the shape of the aligning device and which maintains a solder coating on the whole surface of the metal sphere. An apparatus is also provided for making such a socketable bump grid array.

Abstract translation: 具有包括成形焊料涂覆的金属球体的可插座凸块网格阵列的电子部件通过一种方法提供，该方法包括将焊接涂覆的金属球定位在具有对应于阵列的多个开口的对准装置中，所述开口优选地呈锥形 锥体的底部位于对准装置的上表面并且具有大于焊料涂覆的金属球的直径的直径。 开口构造成使得定位在开口中的球体部分地在对准装置的上表面上方延伸。 然后将衬底的焊盘与定位的球体接触，并且当焊料回流时，焊料在与焊料涂覆的金属球接触的衬底上的导电层之间形成结合，并且采取对准装置的形状和 其在金属球体的整个表面上保持焊料涂层。 还提供了一种用于制造这种可插座凸块网格阵列的装置。

公开(公告)号：US20080203585A1

公开(公告)日：2008-08-28

申请号：US12113108

申请日：2008-04-30

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01L23/52

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components.

公开(公告)号：US5448016A

公开(公告)日：1995-09-05

申请号：US277730

申请日：1994-07-20

Applicant: Nunzio DiPaolo ,  Balaram Ghosal ,  Kim H. Ruffing

Inventor： Nunzio DiPaolo ,  Balaram Ghosal ,  Kim H. Ruffing

IPC: B05D1/32 ,  H01L23/49 ,  H01B5/00

CPC classification number: H01L24/01 ,  B05D1/32 ,  H01L2224/48463 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01051 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/15787 ,  Y10T29/49149 ,  Y10T29/49213

Abstract: A member having a shank is selectively coated with a material such as a metal by loosely sliding a washer made of a material such as a thermoplastic or thermosetting polymer onto the shank, securing the washer such that the washer is in intimate contact with the shank, and immersing at least a portion of the member into at least one coating bath so that a portion of the member is coated and the portion of the shank in contact with the washer is not coated. The member can be an input/output pin for an electronic device and the coating can be applied by methods such as electroless plating or electrolytic plating.

Abstract translation: 具有柄的构件通过将由诸如热塑性或热固性聚合物的材料制成的垫圈松动地滑动到柄上而被选择性地涂覆有诸如金属的材料，固定垫圈使得垫圈与柄紧密接触， 以及将所述构件的至少一部分浸入到至少一个涂层浴中，使得所述构件的一部分被涂覆并且所述柄部与所述垫圈接触的部分未被涂覆。 该构件可以是用于电子设备的输入/输出引脚，并且可以通过诸如无电镀或电解电镀的方法来施加涂层。

公开(公告)号：US07923849B2

公开(公告)日：2011-04-12

申请号：US12113152

申请日：2008-04-30

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01L21/00

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components.

Abstract translation: 一种适于将微电子器件芯片倒装连接到封装的互连结构，包括二层，三层或四层限球组合物，包括粘附/反应阻挡层，并且具有与含锡的组分反应的焊料可湿性层 无铅焊料，使得可焊接层在焊接期间可以完全消耗，但在焊接期间与无铅焊料接触后，阻挡层保持不变。 一个或多个无铅焊料球选择性地位于焊料润湿层上，该无铅焊球包含锡作为主要成分和一种或多种合金成分。

公开(公告)号：US06998327B2

公开(公告)日：2006-02-14

申请号：US10299567

申请日：2002-11-19

Applicant: Jeffrey B. Danielson ,  Balaram Ghosal ,  James Kuss ,  Matthew Wayne Oonk ,  Chandrika Prasad ,  Eric Daniel Perfecto ,  Roy Yu

Inventor： Jeffrey B. Danielson ,  Balaram Ghosal ,  James Kuss ,  Matthew Wayne Oonk ,  Chandrika Prasad ,  Eric Daniel Perfecto ,  Roy Yu

IPC: H01L21/30 ,  H01L21/46

CPC classification number: H01L21/6835 ,  H01L21/4857 ,  H01L21/768 ,  H01L2221/68359 ,  H01L2221/68363 ,  H05K3/002 ,  H05K3/007 ,  H05K3/4007 ,  H05K3/467 ,  H05K2201/0367 ,  H05K2203/016

Abstract: A thin film transfer join process in which a multilevel thin film structure is formed on a carrier, the multilevel thin film structure is joined to a final substrate and then the carrier is removed. Once the carrier is removed, the dielectric material and metallic material that were once joined to the carrier are now exposed. The dielectric material is then etched back so that the exposed metallic material protrudes beyond the dielectric material. Also disclosed is a module made by the foregoing process.

Abstract translation: 在载体上形成多层薄膜结构的薄膜转移连接工艺，多层薄膜结构连接到最终的衬底，然后去除载体。 一旦移除了载体，就已经暴露出曾经接合到载体上的电介质材料和金属材料。 然后将电介质材料回蚀刻，使得暴露的金属材料突出超过电介质材料。 还公开了通过前述方法制成的模块。

公开(公告)号：US5397598A

公开(公告)日：1995-03-14

申请号：US150296

申请日：1993-11-12

Applicant: Nunzio DiPaolo ,  Balaram Ghosal ,  Kim H. Ruffing

Inventor： Nunzio DiPaolo ,  Balaram Ghosal ,  Kim H. Ruffing

IPC: B05D1/32 ,  H01L23/49 ,  C25D5/02

CPC classification number: H01L24/01 ,  B05D1/32 ,  H01L2224/48463 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01051 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/15787 ,  Y10T29/49149 ,  Y10T29/49213

Abstract: A member having a shank is selectively coated with a material such as a metal by loosely sliding a washer made of a material such as a thermoplastic or thermosetting polymer onto the shank, securing the washer such that the washer is in intimate contact with the shank, and immersing at least a portion of the member into at least one coating bath so that a portion of the member is coated and the portion of the shank in contact with the washer is not coated. The member can be an input/output pin for an electronic device and the coating can be applied by methods such as electroless plating or electrolytic plating.

Abstract translation: 具有柄的构件通过将由诸如热塑性或热固性聚合物的材料制成的垫圈松动地滑动到柄上而被选择性地涂覆有诸如金属的材料，固定垫圈使得垫圈与柄紧密接触， 以及将所述构件的至少一部分浸入到至少一个涂层浴中，使得所述构件的一部分被涂覆并且所述柄部与所述垫圈接触的部分未被涂覆。 该构件可以是用于电子设备的输入/输出引脚，并且可以通过诸如无电镀或电解电镀的方法来施加涂层。

公开(公告)号：US08026613B2

公开(公告)日：2011-09-27

申请号：US12113108

申请日：2008-04-30

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01L23/48 ,  H01L23/52 ,  H01L29/40

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components. With a two-layer ball-limiting composition comprising an adhesion/reaction barrier layer, wherein the adhesion/reaction barrier layer serves both as an adhesion layer and a reaction barrier layer, the adhesion/reaction barrier layer can be comprised of a material selected from the group consisting of Zr and ZrN.

Abstract translation: 一种适于将微电子器件芯片倒装连接到封装的互连结构，包括二层，三层或四层限球组合物，包括粘附/反应阻挡层，并且具有与含锡的组分反应的焊料可湿性层 无铅焊料，使得可焊接层在焊接期间可以完全消耗，但在焊接期间与无铅焊料接触后，阻挡层保持不变。 一个或多个无铅焊料球选择性地位于焊料润湿层上，该无铅焊球包含锡作为主要成分和一种或多种合金成分。 使用包含粘合/反应阻挡层的双层球限制组合物，其中粘附/反应阻挡层既用作粘合层又用作反应阻挡层，粘合/反应阻挡层可以由选自 由Zr和ZrN组成的组。

公开(公告)号：US20080206979A1

公开(公告)日：2008-08-28

申请号：US12113152

申请日：2008-04-30

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01L21/60

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components.

Abstract translation: 一种适于将微电子器件芯片倒装连接到封装的互连结构，包括二层，三层或四层限球组合物，包括粘附/反应阻挡层，并且具有与含锡的组分反应的焊料可湿性层 无铅焊料，使得可焊接层在焊接期间可以完全消耗，但在焊接期间与无铅焊料接触后，阻挡层保持不变。 一个或多个无铅焊料球选择性地位于焊料润湿层上，该无铅焊球包含锡作为主要成分和一种或多种合金成分。

公开(公告)号：US07410833B2

公开(公告)日：2008-08-12

申请号：US10815103

申请日：2004-03-31

Applicant: Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

Inventor： Keith E. Fogel ,  Balaram Ghosal ,  Sung K. Kang ,  Stephen Kilpatrick ,  Paul A. Lauro ,  Henry A. Nye, III ,  Da-Yuan Shih ,  Donna S. Zupanski-Nielsen

IPC: H01L23/48

CPC classification number: H01L24/05 ,  H01L24/03 ,  H01L24/11 ,  H01L24/12 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/13023 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01007 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01055 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H01L2924/30107 ,  H01L2924/00014

Abstract: An interconnection structure suitable for flip-chip attachment of microelectronic device chips to packages, comprising a two, three or four layer ball-limiting composition including an adhesion/reaction barrier layer, and having a solder wettable layer reactive with components of a tin-containing lead free solder, so that the solderable layer can be totally consumed during soldering, but a barrier layer remains after being placed in contact with the lead free solder during soldering. One or more lead-free solder balls is selectively situated on the solder wetting layer, the lead-free solder balls comprising tin as a predominant component and one or more alloying components.

Abstract translation: 一种适于将微电子器件芯片倒装连接到封装的互连结构，包括二层，三层或四层限球组合物，包括粘附/反应阻挡层，并且具有与含锡的组分反应的焊料可湿性层 无铅焊料，使得可焊接层在焊接期间可以完全消耗，但在焊接期间与无铅焊料接触后，阻挡层保持不变。 一个或多个无铅焊料球选择性地位于焊料润湿层上，该无铅焊球包含锡作为主要成分和一种或多种合金成分。