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SMTnet Express, August 26, 2021, Subscribers: 26,759, Companies: 11,431, Users: 26,816

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

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

Study on the Reliability of Sn��Bi Composite Solder Pastes with Thermosetting Epoxy under Thermal Cycling and Humidity Treatment

In this study, a Sn—Bi composite solder paste with thermosetting epoxy (TSEP Sn—Bi) was prepared by mixing Sn—Bi solder powder, flux, and epoxy system. The melting characteristics of the Sn—Bi solder alloy and the curing reaction of the epoxy system were measured by differential scanning calorimeter (DSC). A reflow profile

Credits: Nanjing University

A Study On Process, Strength And Microstructure Analysis Of Low Temperature SnBi Containing Solder Pastes Mixed With Lead—Free Solder Balls

As the traditional eutectic SnPb solder alloy has been outlawed, the electronic industry has almost completely transitioned to the lead—free solder alloys. The conventional SAC305 solder alloy used in lead-free electronic assembly has a high melting and processing temperature with a typical peak reflow temperature of 245℃ which is almost 30℃ higher than traditional eutectic SnPb reflow profile. Some of the drawbacks of this high melting and processing temperatures are yield loss due to component warpage which has an impact on solder joint formation like bridging, open defects, head on pillow.

Credits: Rochester Institute of Technology

Forum search results for related keywords: Sn—Bi: 24

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Test equipment for high current EV battery -- does anyone know what equipment I can use to test high current EV batteries? We want to expand our testing capabilities and standardize all our battery testing. Looking for feedback from anyone who has used test equipment for electric vehicle batteries. Thanks!

conductive circuit printer on thin film -- Hi. I am looking for a printer that can print a conductive circuit on a thin film, like polyester or mylar film. Any lead would be appreciated.

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Cloudbased Data logging system

Totech Canada and Loggerflex Smart Devices collaboration on the Totech Labelled Bun HYGRO X PLUS is a easy to use accurate temperature and relative humidity (RH) recorder and alarm system at very low <10%RH environment with a accuracy of <1.5%RH. Very eay to use 5 minute installation It is powered by 2 replaceable AA batteries for up to 10 years and connects directly to Wi-Fi.... |

New Free Industrial Training Apps

BIN95 introduces two new free online apps to aid in training maintenance and manufacturing operators. The Industrial Maintenance Technician's Guide and the Industrial Electrical Troubleshooting app.... | Business Industrial Network

Transition Automation to Exhibit at SMTA Ohio Valley Expo & Tech Forum

Transition Automation, Inc. announces that it will exhibit a complete display of Permalex Long Life Metal Squeegees and Advanced Holder Systems in Booth #12 at the upcoming SMTA Ohio Valley Expo & Tech Forum to be held at the Holiday Inn Strongsville, in Strongsville, Ohio on August 25, 2021.... | Transition Automation, Inc.

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PCB SOFTWARE

PCB ASSEMBLY

ProntoAOI
AOI Software

Software

Unisoft

NEW! Mark 7 Series -
Reflow Oven

Reflow

Heller

Island Series Table Top Dispensers

Dispensing

GPD Global

ICT Full Auto Stencil Printer

Coating Equipment

ICT

PCB CLEANING

PCB INSPECTION

VIGON® NX 700 Next Gen pH Neutral Cleaning

Cleaning

Zestron

MS-11e High Speed In-Line SPI System

Inspection

Mirtec

View More New Products...

FEATURED AUCTIONS

SPONSORED BY

AUCTION | August 2021 Online SMT Auction

AUCTIONEER | Baja Bid

TYPE | On-Line Auction

FEATURING | Items Including: 2005 Universal Instruments GC-60D SMT Pick & Place, [3] 2006 universal Instruments GI-14D SMT Pick & Place, 2006 DEK Horizon 01i Screen Printer, Agilent 3070 In-Circuit Tester, Agilent 3070 In-Circuit Tester Cards, Universal Instruments Transport Conveyors and More!!!

SCHEDULE | Aug 25 — Aug 31, 2021

AUCTION | SMT Auction

AUCTIONEER | XTECH Auctions

TYPE | On-Line Auction

FEATURING | Excess equipment from large Southern California-based contract assembler moving into a new location. and More!!!

SCHEDULE | Aug 31 — Sep 2, 2021

Visit the Equipment Auctions Calendar...

MART - Equipment For Sale

Panasonic DT401=M

Panasonic DT401=M

Chipshooters

Qinyi Electronics

Mydata My100 DXE-14

Mydata My100 DXE-14

Pick and Place/Feeders

MPM Accela

ASM Siemens Parts

ASM Siemens Parts

Pick and Place/Feeders

KD Electronics

View More Equipment Sales...

MART - Equipment Wants

Agilent 3070

Agilent 3070

In-Circuit Testers

KD Electronics

Agilent 3070

Agilent 3070

In-Circuit Testers

Lewis & Clark

Send a RFQ to Equipment Suppliers ...

EVENTS

Advanced Cleaning for Advanced Packages | August 24 — 24 | ZESTRON

Empire Expo & Tech Forum | September 28 — 28 | SMTA

SPONSORED BY

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FIND TRAINING FOR:

SPONSORED BY

IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training

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JOBS - Post your jobs now

RESUMES - Post your resume now

Field Service Engineer

Florham Park, NJ | Heller Industries Inc.

SMT Process Engineer

Milwaukee, WI | Cree Lighting

Soldering Technician, Touch-up for PCBAs

Santa Cruz, CA | Dynamic Engineering

Business Development Sales Manager, Microelectronics

Suwanee, GA | MacDermid Alpha Electronics Solutions

Solderer

Nashville, NC | ACDi

Sr Process Engineer

Schaumburg, Illinois, USA

Willing to relocate: Yes

Head of Quality Assurance

Bayan Lepas, Malaysia

Willing to relocate: Yes

Find your next job now

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Industry Associations Events

SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.

Membership Info | SMTA Certification | Bookstore | Upcoming Events

IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.

Membership Info | Training & Certification | Online Store | Upcoming Events

Editor - Dave "davef" Fish (submit your technical articles)

SMTnet.com, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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