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SMTnet Express, April 28, 2022, Subscribers: 25,631, Companies: 11,565, Users: 27,194

The Effects of Temperature and Solute Diffusion on Volume Change in Sn-Bi Solder Alloys

The different rates of thermal expansion of the many materials that make up an electronic assembly combined with temperature fluctuations are the driver of the thermal fatigue failure of solder joints. A characteristic of the Sn-Bi system, which provided ...

Credits: University of Queensland

Low Melting Temperature Sn-Bi Solder: Effect of Alloying and Nanoparticle Addition on the Microstructural, Thermal, Interfacial Bonding, and Mechanical Characteristics

Sn-based lead-free solders such as Sn-Ag-Cu, Sn-Cu, and Sn-Bi have been used extensively for a long time in the electronic packaging field. Recently, low-temperature Sn-Bi solder alloys attract much attention from industries for flexible printed circuit board (FPCB) applications. Low melting

Credits: University of Seoul

iNEMI Project on Process Development of BiSn-Based Low Temperature Solder Pastes

The 2017 iNEMI Board and Assembly Roadmap forecasts that, due to economic, environmental and technical drivers, use of low temperature solder pastes will increase significantly and reach 10% of all solder paste used for board assembly by 2021.

Credits: iNEMI (International Electronics Manufacturing Initiative)

Low Temperature Soldering Using SN-BI Alloys

Low temperature solder alloys are preferred for the assembly of temperature-sensitive components and substrates. The alloys in this category are required to reflow between 170 and 200oC soldering temperatures. Lower soldering temperatures result in lower thermal stresses and defects, such as ...

Credits: Alpha Assembly Solutions

An Investigation into Lead-Free Low Silver Cored Solder Wire for Electronics Manufacturing Applications

The electronics industry has widely adopted Sn-3.0Ag-0.5Cu solder alloys for lead-free reflow soldering applications and tin-copper based alloys for wave soldering applications. In automated soldering or rework operations, users may work with Sn-Ag-Cu or Sn-Cu based alloys. One of the challenges ...

Credits: Koki Company LTD

A Low Temperature Solder Joint Encapsulant for Sn/Bi Applications

The electronic industry is currently very interested in low temperature soldering processes such as using Sn/Bi alloy to improve process yield, eliminate the head-in-pillow effect, and enhance rework yield. However, Sn/Bi alloy is not strong enough to replace lead-free (SAC) and eutectic ...

Credits: YINCAE Advanced Materials, LLC.

Reliability Screening of Lower Melting Point Pb-Free Alloys Containing Bi

Aerospace and military companies continue to exercise RoHS exemptions and to intensively research the long term attachment reliability of RoHS compliant solders. Their products require higher vibration, drop/shock performance, and ...

Credits: Honeywell International

See Forum results for related keywords - sn-bi : 24

LEARN MORE in the Technical Library... Submit Your Technical Paper...

JUKI KE760 - software -- Hi, bought older yet good JUKI machine, but can not make it work, due to lack of explanation of PWB editing details in manuals, hopefully someone can help : - what is BOC mark - how is the "PWB centering pin" normally used? - What is "Hole reference" - are the coordinates relative to machine 0, or relative to the PCB origin? - is it possible to assemble large panel of multiple PCBs 500x250mm (which is beyond limits of the machine ) in 2 stages? (each PCB size is 10x250mm) etc, etc.....got alot questions, anybody with experience available for consulting services?(paid offcourse)

LED Misalignment -- Hello I experiencing major misalignments. I am using a Nichia LED package size@ y=.086,x=0.33mm, with recommended solder pad pattern x.086mm, y=.033. Note here is the kicker the PCB pattern does not meet this requirement. The PCB pad landing is based of a Cree LED with the dimension of x=0.65, y=1.20 larger than the Nichia led pads. The question is there anything I can do at this time to stop the Nichia Leds from shifting and drifting (misaligning)?

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Count On Tools Offers Low-Cost ACE KISS Bullet Nozzles for Leaded & Lead-Free Solder

Count On Tools, Inc. (COT) is pleased to offer long lasting, low cost ACE Bullet nozzles for the KISS range of selective soldering machines.... | Count On Tools, Inc.

Count On Tools - Low cost ACE KISS nozzles

ViTrox Appoints Edward Pechin as the New Senior Technical Support Engineer in the United States of America

HAYWARD, CALIFORNIA - APRIL 2022 ViTrox Americas, Inc., aims to be the Most Trusted Machine Vision Inspection Solutions provider in the PCBA SMT Assembly and Semiconductor industry, is pleased to announce .... | ViTrox Technologies

ViTrox Appoints Edward Pechin as the New Senior Technical Support Engineer

This in-person event will bring together operations, maintenance, engineering, and technology leaders to connect and learn about the industry's latest innovations and solutions

Rockwell Automation, Inc. announced today that registration is now open for ROKLive, a Rockwell Automation and Plex Systems event taking place June 13-16 in Orlando, Fla. Joining with newly acquired Plex's annual PowerPlex event, the in-person ROKLive experience will .... | Rockwell Automation, Inc.

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NEW EQUIPMENT & SERVICES - For Sale

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ProntoVIEW-MARKUP Assembly Viewer...

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Unisoft

1910 MK5 Dual Lane, Dual Temperature Reflow Oven

Reflow

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SimpleCoat Selective Conformal Coating

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I.C.T. Full Auto Stencil Printer

Printing

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TEST SERVICES

PCB CLEANING

PCB INSPECTION

SIR Testing for Process Qualification and Verification

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Hydro-Clean LDS Cleaning Machine

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MV-7 FIVE CAMERA In-Line AOI System

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FEATURED AUCTIONS - Equipment For Sale
AUCTION \| Bay Area EMS Prototype Facility AUCTIONEER \| The Branford Group TYPE \| On-Line Auction DESCRIPTION \| Complete Juki Line - Very Low Hours & Usage! (100+) Juki Feeders (8mm to 54mm) X-Ray, Microscopes, ESD Work Benches & Soldering SCHEDULE \| April 19 to 28, 2022
AUCTION \| Surplus to the Ongoing Operation of Global EMS Provider (Intervala) AUCTIONEER \| The Branford Group TYPE \| On-Line Auction DESCRIPTION \| (2) Lines: Siemens & Assembleon Placement Machines Including (500+) Feeders and Accessories! SMT Support and Complete Thru-Hole Department SCHEDULE \| Apr 28 to May 4, 2022
AUCTION \| SMT & SUPPORT EQUIPMENT - World Equipment Source / R1 Source, Inc. AUCTIONEER \| XTECH Auctions - Where Technology Sells TYPE \| On-Line Auction DESCRIPTION \| A leading Electronics Manufacturing company, World Equipment Source. Explore over 60 lots all running and maintained by our in-house staff of engineers and technicians. SCHEDULE \| May 10 to 12, 2022