* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, October 6, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Charlie Hunnam Reflects on Playing a Serial Killer in Monster: The Ed Gein Story – Yahoo

    Charlie Hunnam Reveals the Dark Challenges of Playing a Serial Killer in Monster: The Ed Gein Story

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Forget Cowbells. Cows Wear High-Tech Collars Now. – The New York Times

    Ditch the Cowbells: Discover the High-Tech Collars Transforming Cattle Care

    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    Steampunk Metal Oval Technology Sense Sunglasses Personality Handmade Chain Multicolor Sunglasses UV400 – The San Joaquin Valley Sun

    Steampunk Metal Oval Sunglasses with Handmade Multicolor Chain – Bold UV400 Protection and Unique Style

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Charlie Hunnam Reflects on Playing a Serial Killer in Monster: The Ed Gein Story – Yahoo

    Charlie Hunnam Reveals the Dark Challenges of Playing a Serial Killer in Monster: The Ed Gein Story

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Forget Cowbells. Cows Wear High-Tech Collars Now. – The New York Times

    Ditch the Cowbells: Discover the High-Tech Collars Transforming Cattle Care

    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    Steampunk Metal Oval Technology Sense Sunglasses Personality Handmade Chain Multicolor Sunglasses UV400 – The San Joaquin Valley Sun

    Steampunk Metal Oval Sunglasses with Handmade Multicolor Chain – Bold UV400 Protection and Unique Style

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home General

TANAKA Establishes Bonding Technology for High-Density Semiconductor Mounting Using AuRoFUSE(TM) Preforms

March 12, 2024
in General
TANAKA Establishes Bonding Technology for High-Density Semiconductor Mounting Using AuRoFUSE(TM) Preforms
Share on FacebookShare on Twitter

TANAKA Establishes Bonding Technology for High-Density Semiconductor Mounting Using AuRoFUSE(TM) Preforms

Contributing to technical innovation in optical and digital devices by solving the need for greater miniaturization and higher density mounting of semiconductors

TOKYO, Mar 11, 2024 – (JCN Newswire) – TANAKA Kikinzoku Kogyo K.K. (Head office: Chiyoda-ku, Tokyo; CEO: Koichiro Tanaka), which develops industrial precious metals products as one of the core companies of TANAKA Precious Metals, announced today that it has established a gold particle bonding technology for high-density mounting of semiconductors using AuRoFUSE™ low-temperature fired paste for gold-to-gold bonding.

AuRoFUSE™ is a composition of submicron-sized gold particles and a solvent that creates a bonding material with low electrical resistance and high thermal conductivity to achieve metal bonding at low temperatures. Using AuRoFUSE™ preforms (dried paste forms), this technology can reach 4 μm fine-pitch mounting with 20 μm bumps. Formed through a thermocompression bonding process (20 MPa at 200°C for 10 seconds), AuRoFUSE™ preforms exhibit compression of approximately 10% in the compressive direction while showing minimal deformation in the horizontal direction. This gives them sufficient bonding strength1 for practical applications, making them suitable for use as gold bumps2. With the main component being gold, which has a high level of chemical stability, AuRoFUSE™ preforms also provide excellent reliability after mounting.

This technology enables miniaturization of semiconductor wiring and greater integration (higher density) for various types of chips. It is expected to contribute to the high-level technical innovation required of advanced technologies, including optical devices such as light-emitting diodes (LEDs) and semiconductor lasers (LDs), and use in digital devices such as personal computers, smartphones, and in-vehicle components.

TANAKA will actively distribute samples of this technology in the future to promote greater awareness in the marketplace.

TANAKA will present this technology at the 38th Spring Conference of the Japan Institute of Electronics Packaging to be held from March 13 to 15, 2024, at the Tokyo University of Science.

Manufacturing of AuRoFUSE™ preforms

(1) Au/Pt/Ti metallization of the bonding substrate to form the base layer
(2) Photoresist applied to the bonding substrate after metallization
(3) Exposure/development by holding the photomask, corresponding to the preform shape, over the bonding substrate to form a resist frame
(4) Flowing of AuRoFUSE™ into the formed resist frame
(5) Vacuum drying at room temperature, followed by scraping off excess gold particles with a squeegee3
(6) Temporary sintering through heating, followed by separation and removal of the resist frame

Achieving High-Density Mounting with AuRoFUSE™ Preforms

Depending on the purpose, various bonding methods are used for mounting semiconductor devices, including solder and plating methods. The solder-based bonding method is a low-cost, speedy method of producing bumps, but because solder tends to spread outward when melted, there are concerns about possible short-circuiting through contact between electrodes as the bump pitch becomes finer. In the development of technologies for high-density mounting, electroless plating4 is becoming mainstream for producing copper and gold plating bumps. This method can achieve a fine pitch, but because comparatively higher pressures are required during bonding, there are concerns about possible chip damage.

As precious metals professionals, TANAKA Kikinzoku Kogyo has been conducting research and development into the use of AuRoFUSE™, which enables low-temperature, low-pressure bonding with followability of uneven surfaces due to its porousness, to achieve high-density mounting of semiconductors. The company initially attempted to use the mainstream application methods of dispensing5, pin transfer6, and screen printing7, but the fluidity of the paste made those methods unsuitable for high-density mounting. Using this new technology, the paste is dried prior to bonding to eliminate fluidity, which minimizes spread and enables high-density mounting (Figure 1). The porous structure of the paste makes it easily formable as well, which enables bonding even when there is a difference in height between electrodes or differences in warpage or thickness of the substrate (Figure 2).

Figure 1. Comparison of AuRoFUSE™ preforms and other materials

Figure 1. Comparison of AuRoFUSE™ preforms and other materials

Figure 2. AuRoFUSE™ preform SEM image showing absorption of unevenness during bonding

Figure 2. AuRoFUSE™ preform SEM image showing absorption of unevenness during bonding

About AuRoFUSE™

AuRoFUSE™ is a paste-type bonding material containing a mixture of gold particles, with the particle diameter controlled to be submicron sized, and an organic solvent. Generally, microscopic particles have a characteristic called “sintering” where particles bond to each other when heated to a temperature under the melting point. If AuRoFUSE™ is heated to 200°C, the solvent evaporates, and the gold particles undergo sinter bonding without the application of a load, providing sufficient bonding strength of approximately 30 MPa.

[1] Bonding: Refers to shear strength (strength determined through application of a lateral load during testing)
[2] Bumps: Protruding electrodes
[3] Squeegees: Tools made from rubber or polyurethane resin that are used to scrape off excess material
[4] Electroless plating: Refers to plating applied through a chemical reaction without using electricity; it enables plating of certain metals and precious metals, including copper, gold, nickel, and palladium
[5] Dispensing: A paste application method that uses a dispenser to spray a fixed amount of a liquid
[6] Pin transfer: A paste application method like stamping with multiple pins
[7] Screen printing: A paste transfer method whereby a screen mask is formed in any printed pattern, paste is applied, and scraped off with a squeegee to reveal the pattern

About TANAKA Precious Metals

Since its foundation in 1885, TANAKA Precious Metals has built a portfolio of products to support a diversified range of business uses focused on precious metals. TANAKA is a leader in Japan regarding the volumes of precious metals handled. Over the course of many years, TANAKA has not only manufactured and sold precious metal products for industry but also provided precious metals in such forms as jewelry and assets. As precious metals specialists, all Group companies in Japan and around the world collaborate and cooperate on manufacturing, sales, and technology development to offer a full range of products and services. With 5,355 employees, the group’s consolidated net sales for the fiscal year ending March 31, 2023, was 680 billion yen.

Global industrial business website
https://tanaka-preciousmetals.com/en/

Product inquiries
TANAKA Kikinzoku Kogyo K.K.
https://tanaka-preciousmetals.com/en/inquiries-on-industrial-products/

Press inquiries
TANAKA Holdings Co., Ltd.
https://tanaka-preciousmetals.com/en/inquiries-for-media/

Press Release: http://www.acnnewswire.com/docs/files/20240311EN.pdf 

Source: Tanaka Holdings Co., Ltd.
Sectors: Metals & Mining, Electronics, Science & Nanotech, Engineering

Copyright ©2024 JCN Newswire. All rights reserved. A division of Japan Corporate News Network.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : JCN Newswire – https://www.jcnnewswire.com/pressrelease/89425/3/

Previous Post

Watch: Free Fight — Tai Tuivasa vs. Derrick Lewis

Next Post

GMO Research Activity Support & Technology launches brain MRI analysis tool developed on world class supercomputer Fugaku with Fujitsu Computing as a Service (CaaS)

World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

October 6, 2025
Green economy means jobs for NJ, report says – NJ Spotlight News

Green economy means jobs for NJ, report says – NJ Spotlight News

October 6, 2025
Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

October 6, 2025
Republicans are holding Americans’ health care hostage — and lying about it – MSNBC News

How Republicans Are Holding Americans’ Health Care Hostage – and Deceiving the Public

October 6, 2025
Irish language: Naomi Long says politicians are playing out ‘culture war’ – BBC

Naomi Long Slams Politicians for Igniting a Divisive ‘Culture War’ Over the Irish Language

October 6, 2025
Air quality speed run – Washington State Department of Ecology (.gov)

Battling Pollution: Washington State’s Urgent Fight for Cleaner Air

October 6, 2025
Equity in science is a beautiful lie — and I’m done pretending – Nature

Equity in science is a beautiful lie — and I’m done pretending – Nature

October 6, 2025
Explore a bird database with 11,500 species – Popular Science

Explore an Incredible Bird Database Showcasing 11,500 Stunning Species

October 6, 2025
South Shore broker funded ‘extravagant lifestyle’ with $11.6 million taken from clients and colleagues, prosecutors say – Boston.com

South Shore broker funded ‘extravagant lifestyle’ with $11.6 million taken from clients and colleagues, prosecutors say – Boston.com

October 6, 2025
QRG Capital Management Inc. Purchases 9,519 Shares of Marvell Technology, Inc. $MRVL – MarketBeat

QRG Capital Management Takes Bold Step by Acquiring 9,519 Shares of Marvell Technology

October 6, 2025

Categories

Archives

October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Sep    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (854)
  • Economy (875)
  • Entertainment (21,749)
  • General (17,446)
  • Health (9,917)
  • Lifestyle (887)
  • News (22,149)
  • People (876)
  • Politics (886)
  • Science (16,085)
  • Sports (21,375)
  • Technology (15,855)
  • World (858)

Recent News

World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

October 6, 2025
Green economy means jobs for NJ, report says – NJ Spotlight News

Green economy means jobs for NJ, report says – NJ Spotlight News

October 6, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version