公开(公告)号：EP0795200A4

公开(公告)日：1997-11-12

申请号：EP95939966

申请日：1995-11-13

Applicant: FORMFACTOR INC

Inventor： KHANDROS IGOR Y ,  MATHIEU GAETAN L ,  ELDRIDGE BENJAMIN N ,  GRUBE GARY W ,  DOZIER THOMAS H

IPC: G01R1/073 ,  B23K1/00 ,  B23K20/00 ,  B23K31/02 ,  C23C18/16 ,  C25D5/08 ,  C25D5/16 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/04 ,  G01R1/06 ,  G01R1/067 ,  G01R31/26 ,  G01R31/28 ,  H01L21/00 ,  H01L21/48 ,  H01L21/56 ,  H01L21/58 ,  H01L21/60 ,  H01L21/603 ,  H01L21/607 ,  H01L21/66 ,  H01L21/68 ,  H01L23/02 ,  H01L23/12 ,  H01L23/32 ,  H01L23/48 ,  H01L23/485 ,  H01L23/49 ,  H01L23/498 ,  H01L23/538 ,  H01L25/065 ,  H01L25/07 ,  H01L25/16 ,  H01L25/18 ,  H01R9/00 ,  H01R12/71 ,  H01R13/05 ,  H01R13/24 ,  H01R29/00 ,  H01R33/74 ,  H01R33/76 ,  H01R107/00 ,  H05H1/18 ,  H05K1/14 ,  H05K1/18 ,  H05K3/20 ,  H05K3/24 ,  H05K3/30 ,  H05K3/32 ,  H05K3/34 ,  H05K3/36 ,  H05K3/40 ,  H05K7/10

CPC classification number: H05K7/1069 ,  B23K1/0016 ,  B23K20/004 ,  B23K2201/40 ,  C25D5/08 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/0466 ,  G01R1/0483 ,  G01R1/06711 ,  G01R1/07314 ,  G01R1/07342 ,  G01R1/07357 ,  G01R1/07371 ,  G01R1/07378 ,  G01R31/2884 ,  G01R31/2886 ,  G01R31/2889 ,  H01L21/4853 ,  H01L21/4889 ,  H01L21/563 ,  H01L21/67138 ,  H01L22/20 ,  H01L23/32 ,  H01L23/49811 ,  H01L24/11 ,  H01L24/12 ,  H01L24/16 ,  H01L24/29 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L24/72 ,  H01L24/81 ,  H01L25/0652 ,  H01L25/16 ,  H01L2224/0401 ,  H01L2224/05124 ,  H01L2224/05166 ,  H01L2224/05599 ,  H01L2224/05647 ,  H01L2224/1134 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2224/13124 ,  H01L2224/13144 ,  H01L2224/13147 ,  H01L2224/13639 ,  H01L2224/13644 ,  H01L2224/13647 ,  H01L2224/13655 ,  H01L2224/13657 ,  H01L2224/16145 ,  H01L2224/29111 ,  H01L2224/45014 ,  H01L2224/45015 ,  H01L2224/45111 ,  H01L2224/45124 ,  H01L2224/45139 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/4554 ,  H01L2224/456 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48463 ,  H01L2224/48599 ,  H01L2224/48699 ,  H01L2224/48799 ,  H01L2224/49109 ,  H01L2224/73203 ,  H01L2224/73204 ,  H01L2224/73265 ,  H01L2224/78301 ,  H01L2224/81801 ,  H01L2224/85201 ,  H01L2225/0651 ,  H01L2225/06527 ,  H01L2225/06555 ,  H01L2225/06572 ,  H01L2924/00013 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01012 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01018 ,  H01L2924/01019 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01032 ,  H01L2924/01033 ,  H01L2924/01037 ,  H01L2924/01039 ,  H01L2924/01042 ,  H01L2924/01044 ,  H01L2924/01045 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01057 ,  H01L2924/0106 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01076 ,  H01L2924/01077 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01088 ,  H01L2924/0132 ,  H01L2924/01322 ,  H01L2924/0133 ,  H01L2924/014 ,  H01L2924/07802 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/14 ,  H01L2924/15153 ,  H01L2924/15165 ,  H01L2924/1517 ,  H01L2924/15312 ,  H01L2924/1532 ,  H01L2924/15787 ,  H01L2924/16195 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/19043 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3025 ,  H01R12/52 ,  H01R13/2407 ,  H01R13/2464 ,  H05K1/141 ,  H05K3/20 ,  H05K3/326 ,  H05K3/3421 ,  H05K3/368 ,  H05K3/4015 ,  H05K3/4092 ,  H05K2201/0397 ,  H05K2201/068 ,  H05K2201/1031 ,  H05K2201/10318 ,  H05K2201/10378 ,  H05K2201/10719 ,  H05K2201/10734 ,  H05K2201/10757 ,  H05K2201/10878 ,  Y02P70/611 ,  H01L2924/00 ,  H01L2924/01013 ,  H01L2924/01026 ,  H01L2924/3512 ,  H01L2224/29099 ,  H01L2224/48 ,  H01L2924/20752 ,  H01L2924/20753 ,  H01L2924/20754 ,  H01L2924/20755 ,  H01L2924/00012 ,  H01L2924/20751 ,  H01L2924/20756 ,  H01L2924/20757 ,  H01L2924/00015 ,  H01L2924/2075

Abstract: The probe card assembly (500) includes a probe card (502), and a space transformer (506) having resilient contact structures (524) mounted to and extending from terminals (522) on its surface. An interposer (504) is disposed between the space transformer and the probe card. The space transformer and interposer are stacked on the probe card and the resilient contact structures can be arranged to optimise probing of entire wafer.

Abstract translation: 弹性接触结构从支撑基板的顶表面延伸，并且焊球（或其它合适的）接触结构设置在支撑基板的底表面上。 互连元件（110）被用作弹性接触结构并被设置在支撑基板上。 在支撑基板顶上的弹性接触结构中选定的弹性接触结构经由支撑基板连接到支撑基板的底表面上的对应的接触结构。 在旨在接收LGA型半导体封装（304）的实施例中，利用大致垂直于支撑衬底的顶表面的接触力在半导体封装的弹性接触结构和外部连接点之间形成压力接触（ 302）。 在旨在接收BGA型半导体封装（404）的实施例中，利用大致平行于支撑衬底的顶表面的接触力在半导体封装的弹性接触结构和外部连接点之间形成压力接触（ 402）。

公开(公告)号：EP0886894A4

公开(公告)日：1999-06-16

申请号：EP96926049

申请日：1996-05-24

Applicant: FORMFACTOR INC

Inventor： KHANDROS IGOR Y ,  ELDRIDGE BENJAMIN N ,  MATHIEU GAETEAN L ,  DOZIER THOMAS H ,  SMITH WILLIAM D

IPC: B23K20/00 ,  C23C18/16 ,  C25D5/08 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/067 ,  G01R1/073 ,  G01R3/00 ,  G01R31/28 ,  H01L21/00 ,  H01L21/48 ,  H01L21/56 ,  H01L21/60 ,  H01L21/603 ,  H01L21/66 ,  H01L21/68 ,  H01L23/48 ,  H01L23/485 ,  H01L23/49 ,  H01L23/498 ,  H01L25/065 ,  H01L25/16 ,  H01R33/76 ,  H05K1/14 ,  H05K3/20 ,  H05K3/32 ,  H05K3/40 ,  H01R43/20 ,  G01R31/00 ,  G01R31/316 ,  H01R9/28

CPC classification number: B23K20/004 ,  B23K2201/40 ,  C25D5/08 ,  C25D5/22 ,  C25D21/02 ,  G01R1/06711 ,  G01R1/06716 ,  G01R1/06744 ,  G01R1/07342 ,  G01R3/00 ,  G01R31/2884 ,  G01R31/2886 ,  H01L21/4853 ,  H01L21/4889 ,  H01L21/563 ,  H01L22/20 ,  H01L23/49811 ,  H01L24/11 ,  H01L24/13 ,  H01L24/72 ,  H01L24/81 ,  H01L25/0652 ,  H01L25/16 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2224/16145 ,  H01L2224/45144 ,  H01L2224/73203 ,  H01L2224/81801 ,  H01L2224/85201 ,  H01L2225/0651 ,  H01L2225/06527 ,  H01L2225/06555 ,  H01L2225/06572 ,  H01L2924/0001 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01022 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01042 ,  H01L2924/01045 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01057 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/014 ,  H01L2924/09701 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/1532 ,  H01L2924/15787 ,  H01L2924/19041 ,  H01L2924/19043 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3025 ,  H05K1/141 ,  H05K3/20 ,  H05K3/326 ,  H05K3/4015 ,  H01L2924/00

Abstract: A plurality of contact elements, such as contact bumps or free-standing spring contacts (710) including both monolithic and composite interconnection elements, are mounted to relatively small tile substrates (702) which, in turn, are mounted and connected to a relatively large electronic component substrate (706), thereby populating the electronic component with a plurality of contact elements while avoiding the necessity of yielding the contact elements directly upon the electronic component. The relatively large electronic component is suitably a space transformer component of a probe card assembly. In this manner, pressure connections can be made to an entire semiconductor wafer, at once, to provide for wafer-level bum-in, and the like. Solder balls, z-axis conductive adhesive, or compliant connections are suitably employed for making electrical connections between the tile substrates and the electronic component. Multiple die sites on a semiconductor wafer are readily probed using the disclosed techniques, and the tiles can be arranged to optimize probing of an entire wafer. Composite interconnection elements having a relatively soft core overcoated by a relatively hard shell, as the resilient contact structures are described. Techniques for maintaining a prescribed x-y and z-axis alignment of the tiles to the relatively large substrate are disclosed.

公开(公告)号：EP0828582A4

公开(公告)日：1999-02-03

申请号：EP96916923

申请日：1996-05-28

Applicant: FORMFACTOR INC

Inventor： KHANDROS IGOR Y ,  DOZIER THOMAS H ,  ELDRIDGE BENJAMIN N ,  GARY W GRUBE ,  GAETAN L MATHIEU

IPC: H01L23/32 ,  B23K20/00 ,  B23K31/02 ,  C23C18/16 ,  C25D5/08 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/067 ,  G01R1/073 ,  G01R31/28 ,  H01L21/00 ,  H01L21/48 ,  H01L21/56 ,  H01L21/60 ,  H01L21/603 ,  H01L21/66 ,  H01L23/48 ,  H01L23/485 ,  H01L23/49 ,  H01L23/498 ,  H01L25/065 ,  H01L25/16 ,  H05K1/14 ,  H05K3/20 ,  H05K3/32 ,  H05K3/40

CPC classification number: H05K3/4015 ,  B23K20/004 ,  B23K2201/40 ,  C25D5/08 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/06711 ,  G01R31/2886 ,  H01L21/4853 ,  H01L21/4889 ,  H01L21/563 ,  H01L22/20 ,  H01L23/49811 ,  H01L24/11 ,  H01L24/12 ,  H01L24/72 ,  H01L24/81 ,  H01L25/0652 ,  H01L25/16 ,  H01L2224/13099 ,  H01L2224/16145 ,  H01L2224/45014 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/73203 ,  H01L2224/78302 ,  H01L2224/81801 ,  H01L2224/85201 ,  H01L2224/85205 ,  H01L2225/0651 ,  H01L2225/06527 ,  H01L2225/06555 ,  H01L2225/06572 ,  H01L2924/00014 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01027 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01042 ,  H01L2924/01045 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01057 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/14 ,  H01L2924/1532 ,  H01L2924/19041 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3025 ,  H05K1/141 ,  H05K3/20 ,  H05K3/326 ,  H01L2924/00

Abstract: Interconnection elements (550) for electronic components (556), exhibiting desirable mechanical characteristics (such as resiliency), for making pressure contact(s) are formed by shaping a ribbon-like core element (552) of a soft material (such as gold or soft copper) to have a springable shape (including cantilever beam, S-shape, U-shape), and overcoating the shaped core element with a hard material (558) such as nickel and it alloys, to impart a desired spring (resilient) characteristic to the resulting composite interconnection element (550). A final overcoat of a material (220) having superior electrical qualities (e.g., electrical conductivity and/or solderability) may be applied to the composite interconnection element (200). The resulting interconnection elements (500, 550) may be mounted to a variety of electronic components.

公开(公告)号：EP0886894A2

公开(公告)日：1998-12-30

申请号：EP96926049

申请日：1996-05-24

Applicant: FORMFACTOR INC

Inventor： KHANDROS IGOR Y ,  ELDRIDGE BENJAMIN N ,  MATHIEU GAETEAN L ,  DOZIER THOMAS H ,  SMITH WILLIAM D

IPC: B23K20/00 ,  C23C18/16 ,  C25D5/08 ,  C25D5/22 ,  C25D7/12 ,  C25D21/02 ,  G01R1/067 ,  G01R1/073 ,  G01R3/00 ,  G01R31/28 ,  H01L21/00 ,  H01L21/48 ,  H01L21/56 ,  H01L21/60 ,  H01L21/603 ,  H01L21/66 ,  H01L21/68 ,  H01L23/48 ,  H01L23/485 ,  H01L23/49 ,  H01L23/498 ,  H01L25/065 ,  H01L25/16 ,  H01R33/76 ,  H05K1/14 ,  H05K3/20 ,  H05K3/32 ,  H05K3/40 ,  H01R43/20 ,  G01R31/00 ,  G01R31/316 ,  H01R9/28

CPC classification number: B23K20/004 ,  B23K2201/40 ,  C25D5/08 ,  C25D5/22 ,  C25D21/02 ,  G01R1/06711 ,  G01R1/06716 ,  G01R1/06744 ,  G01R1/07342 ,  G01R3/00 ,  G01R31/2884 ,  G01R31/2886 ,  H01L21/4853 ,  H01L21/4889 ,  H01L21/563 ,  H01L22/20 ,  H01L23/49811 ,  H01L24/11 ,  H01L24/13 ,  H01L24/72 ,  H01L24/81 ,  H01L25/0652 ,  H01L25/16 ,  H01L2224/13099 ,  H01L2224/131 ,  H01L2224/16145 ,  H01L2224/45144 ,  H01L2224/73203 ,  H01L2224/81801 ,  H01L2224/85201 ,  H01L2225/0651 ,  H01L2225/06527 ,  H01L2225/06555 ,  H01L2225/06572 ,  H01L2924/0001 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01022 ,  H01L2924/01027 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01042 ,  H01L2924/01045 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01051 ,  H01L2924/01057 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/014 ,  H01L2924/09701 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/1532 ,  H01L2924/15787 ,  H01L2924/19041 ,  H01L2924/19043 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/3025 ,  H05K1/141 ,  H05K3/20 ,  H05K3/326 ,  H05K3/4015 ,  H01L2924/00

Abstract: A plurality of contact elements, such as contact bumps or free-standing spring contacts including both monolithic and composite interconnection elements (514, 516, 524), are mounted to relatively small tile substrates which, in turn, are mounted and connected to a relatively large electronic component substrate (512), thereby populating the electronic component with a plurality of contact elements while avoiding the necessity of yielding the contact elements directly upon the electronic component. The relatively large electronic component is suitably a space transformer (506) component of a probe card assembly (500). In this manner, pressure connections can be made to an entire semiconductor wafer, at once, to provide for wafer-level burn-in, and the like. Solder balls, Z-axis conductive adhesive, or compliant connections are suitably employed for making electrical connections between the tile substrates and the electronic component. Multiple die sites on a semiconductor wafer (508) are readily probed using the disclosed techniques, and the tiles can be arranged to optimize probing of an entire wafer. Composite interconnection elements having a relatively soft core overcoated by a relatively hard shell, as the resilient contact structures are described. Techniques for maintaining a prescribed X-Y and Z-axis alignment of the tiles to the relatively large substrate are disclosed.