公开(公告)号：US20180026007A1

公开(公告)日：2018-01-25

申请号：US15699288

申请日：2017-09-08

Applicant: Invensas Corporation

Inventor： Ellis Chau ,  Reynaldo Co ,  Roseann Alatorre ,  Philip Damberg ,  Wei-Shun Wang ,  Se Young Yang

IPC: H01L23/00 ,  H01L25/10 ,  H01L23/498 ,  H01L21/48 ,  H01L23/433 ,  H01L23/367 ,  H01L23/31 ,  H01L21/56 ,  H01L25/00 ,  H01L23/495 ,  H01L25/065 ,  H05K3/34

Abstract: A microelectronic package includes a substrate having a first surface. A microelectronic element overlies the first surface. Electrically conductive elements are exposed at the first surface of the substrate, at least some of which are electrically connected to the microelectronic element. The package includes wire bonds having bases bonded to respective ones of the conductive elements and ends remote from the substrate and remote from the bases. The ends of the wire bonds are defined on tips of the wire bonds, and the wire bonds define respective first diameters between the bases and the tips thereof. The tips have at least one dimension that is smaller than the respective first diameters of the wire bonds. A dielectric encapsulation layer covers portions of the wire bonds, and unencapsulated portions of the wire bonds are defined by portions of the wire bonds, including the ends, are uncovered by the encapsulation layer.

公开(公告)号：US09252122B2

公开(公告)日：2016-02-02

申请号：US13966636

申请日：2013-08-14

Applicant: Invensas Corporation

Inventor： Ellis Chau ,  Reynaldo Co ,  Roseann Alatorre ,  Philip Damberg ,  Wei-Shun Wang ,  Se Young Yang

IPC: H01L23/00 ,  H01L23/31 ,  H01L23/498 ,  H01L21/56 ,  H01L25/10 ,  H01L25/00 ,  H01L23/495 ,  H01L21/48 ,  H01L23/367 ,  H01L23/433 ,  H01L25/065 ,  H05K3/34

CPC classification number: H01L24/85 ,  H01L21/4853 ,  H01L21/56 ,  H01L21/565 ,  H01L23/3114 ,  H01L23/3128 ,  H01L23/3677 ,  H01L23/4334 ,  H01L23/49517 ,  H01L23/49811 ,  H01L23/49816 ,  H01L24/06 ,  H01L24/16 ,  H01L24/43 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L24/78 ,  H01L25/0655 ,  H01L25/0657 ,  H01L25/105 ,  H01L25/50 ,  H01L2224/0401 ,  H01L2224/05599 ,  H01L2224/131 ,  H01L2224/16145 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/32145 ,  H01L2224/32225 ,  H01L2224/32245 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/4554 ,  H01L2224/45565 ,  H01L2224/48091 ,  H01L2224/48145 ,  H01L2224/48227 ,  H01L2224/4824 ,  H01L2224/48245 ,  H01L2224/48247 ,  H01L2224/48997 ,  H01L2224/49171 ,  H01L2224/73204 ,  H01L2224/73207 ,  H01L2224/73253 ,  H01L2224/73257 ,  H01L2224/73265 ,  H01L2224/78301 ,  H01L2224/851 ,  H01L2224/8518 ,  H01L2224/85399 ,  H01L2224/85951 ,  H01L2224/85986 ,  H01L2225/06506 ,  H01L2225/0651 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2225/06558 ,  H01L2225/06562 ,  H01L2225/06565 ,  H01L2225/06568 ,  H01L2225/1023 ,  H01L2225/1029 ,  H01L2225/1052 ,  H01L2225/1058 ,  H01L2225/1088 ,  H01L2225/1094 ,  H01L2924/00011 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/01013 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/12042 ,  H01L2924/1431 ,  H01L2924/1434 ,  H01L2924/15311 ,  H01L2924/15331 ,  H01L2924/1715 ,  H01L2924/181 ,  H01L2924/1815 ,  H01L2924/19107 ,  H01L2924/3511 ,  H05K3/3436 ,  H05K2201/10515 ,  H05K2201/1053 ,  Y10T29/49149 ,  Y10T29/49151 ,  H01L2224/45664 ,  H01L2924/00 ,  H01L2924/014 ,  H01L2924/20751 ,  H01L2924/20752 ,  H01L2924/20753 ,  H01L2924/20754 ,  H01L2924/20755 ,  H01L2924/20756 ,  H01L2924/20757 ,  H01L2924/20758 ,  H01L2924/20759 ,  H01L2924/2076

Abstract: A structure includes a substrate having a first region and a second region, the substrate also having a first surface and a second surface. Electrically conductive elements are exposed at the first surface within the second region. Wire bonds have bases bonded to respective ones of the conductive elements and ends remote from the substrate and remote from the bases. At least one of the wire bonds has a shape such that the wire bond defines an axis between the free end and the base thereof and such that the wire bond defines a plane. A bent portion of the at least one wire bond extends away from the axis within the plane. A dielectric encapsulation layer covers portions of the wire bonds such that unencapsulated portions, including the ends, of the wire bonds are defined by portions of the wire bonds that are uncovered by the encapsulation layer.

Abstract translation: 一种结构包括具有第一区域和第二区域的衬底，该衬底还具有第一表面和第二表面。 导电元件在第二区域内的第一表面露出。 引线键具有粘合到导电元件中的相应导电元件的基底并且远离基底并远离基底的基底。 线接合中的至少一个具有这样的形状，使得线接合限定自由端和其基部之间的轴线，并且使得线接合限定平面。 所述至少一个导线接合部的弯曲部分远离所述平面内的轴线延伸。 电介质封装层覆盖引线接合的部分，使得引线键合的包括末端的未封装部分由未被封装层覆盖的引线键的部分限定。

公开(公告)号：US20150014688A1

公开(公告)日：2015-01-15

申请号：US14500858

申请日：2014-09-29

Applicant: Invensas Corporation

Inventor： Charles G. Woychik ,  Se Young Yang ,  Pezhman Monadgemi ,  Terrence Caskey

IPC: H01L21/66 ,  H01L23/00

CPC classification number: H01L22/32 ,  G01R31/2886 ,  H01L21/6835 ,  H01L22/14 ,  H01L23/49811 ,  H01L24/11 ,  H01L24/13 ,  H01L24/16 ,  H01L24/17 ,  H01L24/81 ,  H01L25/04 ,  H01L25/0652 ,  H01L25/50 ,  H01L2221/68327 ,  H01L2221/68331 ,  H01L2221/6834 ,  H01L2221/68381 ,  H01L2224/11015 ,  H01L2224/11849 ,  H01L2224/13014 ,  H01L2224/13082 ,  H01L2224/14131 ,  H01L2224/14135 ,  H01L2224/16111 ,  H01L2224/16112 ,  H01L2224/16146 ,  H01L2224/16147 ,  H01L2224/16237 ,  H01L2224/16257 ,  H01L2224/16267 ,  H01L2224/16503 ,  H01L2224/17051 ,  H01L2224/8109 ,  H01L2224/81138 ,  H01L2224/8114 ,  H01L2224/81191 ,  H01L2224/81385 ,  H01L2224/81815 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2225/06541 ,  H01L2225/06565 ,  H01L2924/00011 ,  H01L2924/01322 ,  H01L2924/014 ,  H01L2924/07811 ,  H01L2924/12 ,  H01L2924/14 ,  H01L2924/15788 ,  H01L2924/181 ,  H01L2924/00 ,  H01L2224/81805

Abstract: A method of attaching a microelectronic element to a substrate can include aligning the substrate with a microelectronic element, the microelectronic element having a plurality of spaced-apart electrically conductive bumps each including a bond metal, and reflowing the bumps. The bumps can be exposed at a front surface of the microelectronic element. The substrate can have a plurality of spaced-apart recesses extending from a first surface thereof. The recesses can each have at least a portion of one or more inner surfaces that are non-wettable by the bond metal of which the bumps are formed. The reflowing of the bumps can be performed so that at least some of the bond metal of each bump liquefies and flows at least partially into one of the recesses and solidifies therein such that the reflowed bond material in at least some of the recesses mechanically engages the substrate.

Abstract translation: 将微电子元件附接到衬底的方法可以包括将衬底与微电子元件对准，微电子元件具有多个间隔开的导电凸块，每个包括接合金属，并且回流凸块。 凸起可以暴露在微电子元件的前表面处。 衬底可以具有从其第一表面延伸的多个间隔开的凹部。 这些凹部各自可以具有一个或多个内表面的至少一部分，该内表面不被其形成凸起的粘结金属润湿。 可以进行凸块的回流，使得每个凸块的至少一些粘结金属液化并且至少部分地流入其中一个凹部并在其中固化，使得至少一些凹部中的回流焊接材料机械地接合 基质。