公开(公告)号：US11162007B2

公开(公告)日：2021-11-02

申请号：US16289789

申请日：2019-03-01

Applicant: Alpha Assembly Solutions Inc.

Inventor： Shamik Ghosal ,  Ranjit Pandher ,  Oscar Khaselev ,  Ravi Bhatkal ,  Rahul Raut ,  Bawa Singh ,  Morgana de Avila Ribas ,  Siuli Sarkar ,  Sutapa Mukherjee ,  Sathish Kumar ,  Remya Chandran ,  Pavan Vishwanath ,  Ashok Pachamuthu ,  Monnir Boureghda ,  Nitin Desai ,  Anna Lifton ,  Nirmalya Kumar Chaki

IPC: C09K5/14 ,  B22F1/00 ,  B22F1/02 ,  C01G5/00 ,  C09C1/62 ,  C09C3/08 ,  B82Y30/00

Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.

公开(公告)号：US20180166415A1

公开(公告)日：2018-06-14

申请号：US15545607

申请日：2015-12-16

Applicant: Alpha Assembly Solutions Inc. ,  Advanced Packaging Center BV

Inventor： Oscar Khaselev ,  Eef Boschman

IPC: H01L23/00 ,  H01L21/48 ,  H01L23/495

CPC classification number: H01L24/84 ,  H01L21/4825 ,  H01L23/49524 ,  H01L23/49582 ,  H01L24/29 ,  H01L24/32 ,  H01L24/37 ,  H01L24/40 ,  H01L24/73 ,  H01L24/83 ,  H01L24/92 ,  H01L24/97 ,  H01L2224/29139 ,  H01L2224/29339 ,  H01L2224/32245 ,  H01L2224/37012 ,  H01L2224/37013 ,  H01L2224/40105 ,  H01L2224/40245 ,  H01L2224/40499 ,  H01L2224/73213 ,  H01L2224/73263 ,  H01L2224/83001 ,  H01L2224/83191 ,  H01L2224/83192 ,  H01L2224/83203 ,  H01L2224/83439 ,  H01L2224/83447 ,  H01L2224/8384 ,  H01L2224/83907 ,  H01L2224/83986 ,  H01L2224/84001 ,  H01L2224/84203 ,  H01L2224/8484 ,  H01L2224/84986 ,  H01L2224/9205 ,  H01L2224/9221 ,  H01L2224/97 ,  H01L2924/00014 ,  H01L2224/83 ,  H01L2924/00012 ,  H01L2224/84 ,  H01L2924/01047

Abstract: A method of die and clip attachment includes providing a clip, a die and a substrate, laminating a sinterable silver film on the clip and the die, depositing a tack agent on the substrate, placing the die on the substrate, placing the clip on the die and the substrate to create a substrate, die and clip package, lead and sintering the substrate, die and clip package.

公开(公告)号：US12246376B2

公开(公告)日：2025-03-11

申请号：US17594978

申请日：2020-05-05

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Oscar Khaselev ,  Matthew James Siebenhuhner ,  Monnir Boureghda ,  Mike Marczi ,  Carl Bilgrien

IPC: B23K1/00 ,  B22C9/22 ,  B22D21/00 ,  B22D21/06 ,  B22D25/04 ,  B23K101/40

Abstract: A method of making a combined sinter-ready silver film and carrier comprises the steps of: a) creating a carrier comprising designed openings; b) casting a silver film layer into the designed openings, for example casting a silver paste; and c) drying the carrier and silver film layer to form the combined sinter-ready silver film and carrier. The carrier may comprise a plastic carrier, which may be created by permanently bonding two plastic films, using a plasma bonding process or using a temperature stable glue. The carrier may comprise a stencil layer and a backing layer. The stencil layer may define the designed openings. The backing layer may be configured for sealing a bottom of the designed openings, wherein at the start of step b), a top of the designed openings may be open for receiving the cast silver film layer.

公开(公告)号：US20210289680A1

公开(公告)日：2021-09-16

申请号：US17153706

申请日：2021-01-20

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Monnir Boureghda ,  Nitin Desai ,  Anna Lifton ,  Oscar Khaselev ,  Michael T. Marczi ,  Bawa Singh

IPC: H05K13/04 ,  H01L23/00

Abstract: Methods for attachment and devices produced using such methods are disclosed. In certain examples, the method comprises disposing a capped nanomaterial on a substrate, disposing a die on the disposed capped nanomaterial, drying the disposed capped nanomaterial and the disposed die, and sintering the dried disposed die and the dried capped nanomaterial at a temperature of 300° C. or less to attach the die to the substrate. Devices produced using the methods are also described.

公开(公告)号：US10905041B2

公开(公告)日：2021-01-26

申请号：US14027530

申请日：2013-09-16

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Monnir Boureghda ,  Nitin Desai ,  Anna Lifton ,  Oscar Khaselev ,  Michael T. Marczi ,  Bawa Singh

IPC: H01L23/29 ,  H05K13/04 ,  H01L23/00

Abstract: Methods for attachment and devices produced using such methods are disclosed. In certain examples, the method comprises disposing a capped nanomaterial on a substrate, disposing a die on the disposed capped nanomaterial, drying the disposed capped nanomaterial and the disposed die, and sintering the dried disposed die and the dried capped nanomaterial at a temperature of 300° C. or less to attach the die to the substrate. Devices produced using the methods are also described.

公开(公告)号：US20200338859A1

公开(公告)日：2020-10-29

申请号：US16927444

申请日：2020-07-13

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Oscar Khaselev ,  Bin Mo ,  Monnir Boureghda ,  Michael T. Marczi ,  Bawa Singh

IPC: B32B15/01 ,  B22F5/00 ,  B22F7/04 ,  C22C32/00 ,  C22C49/00 ,  H01L23/00

Abstract: A silver film for die attachment in the field of microelectronics, wherein the silver film is a multilayer structure comprising a reinforcing silver foil layer between two layers of sinterable particles. Each layer of sinterable particles comprises a mixture of sinterable silver particles and reinforcing particles. The reinforcing particles comprise glass and/or carbon and/or graphite particles. A method for die attachment using a silver film.

公开(公告)号：US10465295B2

公开(公告)日：2019-11-05

申请号：US15312799

申请日：2015-05-19

Applicant: Alpha Assembly Solutions Inc

Inventor： Steven Prokopiak ,  Ellen S. Tormey ,  Oscar Khaselev ,  Michael T. Marczi ,  Bawa Singh

IPC: C23F1/16 ,  C23F1/02 ,  H01L21/3213 ,  H01L31/18 ,  H01L31/0224 ,  H01L31/0216 ,  H01L31/0236

Abstract: A jettable etchant composition includes 1 to 90 wt % active ingredient, and a remainder containing any combination of the following: 10 to 90 wt % solvent, 0 to 10 wt % reducing agents,

公开(公告)号：US11699632B2

公开(公告)日：2023-07-11

申请号：US17153706

申请日：2021-01-20

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Monnir Boureghda ,  Nitin Desai ,  Anna Lifton ,  Oscar Khaselev ,  Michael T. Marczi ,  Bawa Singh

IPC: H05K13/04 ,  H01L23/373 ,  H01L23/00

CPC classification number: H01L23/373 ,  H01L24/29 ,  H01L24/32 ,  H01L24/83 ,  H05K13/0465 ,  H01L2224/2936 ,  H01L2224/29101 ,  H01L2224/29111 ,  H01L2224/29339 ,  H01L2224/29344 ,  H01L2224/29347 ,  H01L2224/29355 ,  H01L2224/29364 ,  H01L2224/29369 ,  H01L2224/32225 ,  H01L2224/8384 ,  H01L2224/83192 ,  H01L2224/83801 ,  H01L2924/0102 ,  H01L2924/0103 ,  H01L2924/014 ,  H01L2924/0104 ,  H01L2924/0105 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01013 ,  H01L2924/01019 ,  H01L2924/01029 ,  H01L2924/0132 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01077 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/10253 ,  H01L2924/14 ,  H01L2924/1461 ,  H01L2924/203 ,  Y10T29/4913 ,  Y10T29/49133 ,  Y10T29/49155 ,  Y10T428/24893 ,  H01L2224/29101 ,  H01L2924/014 ,  H01L2924/00 ,  H01L2924/0132 ,  H01L2924/0105 ,  H01L2924/01079 ,  H01L2924/3512 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2224/29111 ,  H01L2924/01079 ,  H01L2924/00014 ,  H01L2924/10253 ,  H01L2924/00 ,  H01L2224/83192 ,  H01L2224/32225 ,  H01L2924/00 ,  H01L2924/1461 ,  H01L2924/00 ,  H01L2924/203 ,  H01L2924/0002

Abstract: Methods for attachment and devices produced using such methods are disclosed. In certain examples, the method comprises disposing a capped nanomaterial on a substrate, disposing a die on the disposed capped nanomaterial, drying the disposed capped nanomaterial and the disposed die, and sintering the dried disposed die and the dried capped nanomaterial at a temperature of 300° C. or less to attach the die to the substrate. Devices produced using the methods are also described.

公开(公告)号：US10710336B2

公开(公告)日：2020-07-14

申请号：US14915067

申请日：2014-08-29

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Oscar Khaselev ,  Bin Mo ,  Monnir Boureghda ,  Michael T. Marczi ,  Bawa Singh

IPC: B22F7/04 ,  B32B15/01 ,  B22F5/00 ,  C22C32/00 ,  C22C49/00 ,  H01L23/00

Abstract: Materials for die attachment such as silver sintering films may include reinforcing, modifying particles for enhanced performance. Methods for die attachment may involve the of such materials.

公开(公告)号：US10462908B2

公开(公告)日：2019-10-29

申请号：US15439555

申请日：2017-02-22

Applicant: Alpha Assembly Solutions Inc.

Inventor： Oscar Khaselev ,  Nitin Desai ,  Michael T. Marczi ,  Bawa Singh

IPC: H05K1/02 ,  H05K1/09 ,  H05K3/00 ,  H05K3/10 ,  H05K3/12 ,  H05K3/18 ,  H05K3/20 ,  H05K3/22 ,  H05K3/28 ,  H05K3/46 ,  H01L21/02 ,  H01L21/44 ,  H01L21/48 ,  H01L23/48 ,  B05D3/02 ,  H05K3/24

Abstract: Conductive patterns and methods of using and printing such conductive patterns are disclosed. In certain examples, the conductive patterns may be produced by disposing a conductive material between supports on a substrate. The supports may be removed to provide conductive patterns having a desired length and/or geometry.