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SMTnet Express, January 23, 2025, Subscribers: 26,027, Companies: 12,348, Users: 29,459

█ Electronics Manufacturing Technical Articles

Effects of Reflow Profile and Thermal Conditioning on Intermetallic Compound Thickness for SnAgCu Soldered Joints

The purpose of this paper is to investigate the effects of reflow time, reflow peak temperature, thermal shock and thermal aging on the intermetallic compound (IMC) thickness for Sn3.0Ag0.5Cu (SAC305) soldered joints.

Credit: Flex (Flextronics International)

Lead-free SMT Soldering Defects How to Prevent Them

Tin-Silver-Copper alloys are the primary choice for lead-free SMT assembly. Although there are other options available such as alloys containing bismuth or indium and other elements, tin-silver-copper solders, also known as SAC alloys are by far the most popular. They are used by approximately 65% of users, as last surveyed by Soldertec in 2003.

Credit: Kester

Effect of Gold Content on the Microstructural Evolution of SAC305 Solder Joints Under Isothermal Aging

Au over Ni on Cu is a widely used printed circuit board (PCB) surface finish, under bump metallization (UBM), and component lead metallization. It is generally accepted that less than 3 wt.% Au in Sn-Pb solder joints inhibits formation of detrimental intermetallic compounds (IMC). However, the critical limit for Au content in Pb-free solder joints is not well established.

Credit: Agilent Technologies, Inc.

Voiding Performance with Solder Pastes Containing Modified SAC Alloys for Automotive Applications in Bottom Terminated Component Assemblies

Voiding is a key concern for components with thermal planes because interruptions in Z-axis continuity of the solder joint will hinder thermal transfer. When assembling components with solder paste, there is a high propensity for voiding due to the confined nature of the solder paste deposits under the component. Once reflowed, many factors contribute to the amount of voiding in ..s.

Credit: Indium Corporation

Effects of PCB Substrate Surface Finish and Flux on Solderability of Lead-Free SAC305 Alloy

The solderability of the SAC305 alloy in contact with printed circuit boards (PCB) having different surface finishes was examined using the wetting balance method. The study was performed at a temperature of 260 °C on three types of PCBs covered with (1) hot air solder leveling (HASL LF), (2) electroless nickel immersion gold (ENIG), and (3) organic surface protectant ....

Credit: Foundry Research Institute

RESULTS of Searches for related keywords - "sac failure" (17)

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█ Printed Circuit Board Assembly & PCB Design Forum

Juki RS-2 -- Juki has launched new pick and place machine rs-2 any thoughts on that?

Changing turn unit direction -- I've got a autoveyor turn unit (corner) that turns anticlockwise and I'd like it to turn clockwise. Does anyone have a manual for any turn unit so I can see what the normal way to switch it is? Autoveyor doesn't seem to exist any more so just looking for any manual or ideas. I assume other turn units might be similar so any manual might help. There doesn't seem to be a button for it, but it does have 3 holes, one currently with a cover so I assume it's possible.

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█ SMT, PCB Manufacturing Companies - Industry Directory

POWER MEMBERS

AATEC Ltd - Modular pick and place automation - tape and reel - tube feeder - coplanarity check - assembly machine - contactless pick and place

Parker SMT - Your #1 Worldwide Supplier for Used Equipment for PCBA. Buying and Selling your SM

SSMTUNION - We are a global electronics manufacturing Solutions provider ....Our company supplies new and used SMT equipment, spare parts, consumibles, ESD supplies and services to a wide range of EMS companies.

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The Box Zilla - Manufacturer and Supplier Company which offers Custom Packaging Boxes with Logo at affordable wholesale prices.

Thinkink Packaging - Need custom boxes that fit your brand? Look no further than ThinkInk Packaging. Our team will help you design the right packaging for you!

Shenzhen Groupex Technology - Welcome to GTSMT, a leading provider of SMT solutions for businesses worldwide. We specialize in high-quality SMT assembly services, PCB SMT LINE , SELECTIVE SOLDERING and other smt related equipments

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█ SMT, PCB Electronics Assembly Manufacturing Industry News

Saelig Introduces the Langer EMV P1 Mini Burst Generator Kit For Evaluating PCB B- and E-field Vulnerabilities Handheld mini burst field generators can be used on a developer's bench-space to generate a burst or an ESD field at their tip.... Saelig Co. Inc.
Hanwha Techwin Automation Americas Appoints PMR Representatives as New Southern California Representative Hanwha Techwin Automation Americas, Hanwha Precision Machinery's North America branch office, is pleased to announce the appointment of PMR Representatives as its exclusive representative for Southern California and Southern Nevada. This strategic partnership strengthens Hanwha's commitment to delivering unparalleled support and innovative manufacturing solutions to customers in the region.... Hanwha Techwin CO., LTD.	--->
Axxon-Mycronic Wins JABIL's Strategic Supplier Award for 2024 Axxon-Mycronic is proud to announce that it has received the prestigious 2024 JABIL Strategic Supplier Award. This accolade recognizes Axxon-Mycronic's exceptional contributions to JABIL's operations through superior technology, innovation, and customer support.... Mycronic AB

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█ SMT / PCB Products & Services

NEW SMT / PCB EQUIPMENT & SERVICES - For Sale

PCB DISPENSING

Dispense Pumps for Integration

GPD Global

Printing

Full-auto SMT Stencil Printer I.C.T-P4034

Dongguan I.C.T

SELECTIVE SOLDERING

Pillarhouse Jade Handex

Pillarhouse USA

PCB INSPECTION

MS-11e High Speed In-Line SPI System

Mirtec

PCB SOFTWARE

ProntoVIEW-MARKUP Assembly Viewer...

Unisoft

PCB ASSEMBLY

PCB Fab & Assembly

Imagineering

PCB REFLOW OVEN

Flux-Free Formic Acid Reflow Oven

Heller

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█ SMT / PCB Assembly Equipment Auctions

AUCTION | ex-Itron France: closure of an electronics manufacturing site

AUCTIONEER | Troostwijk Auctions

TYPE | Online Auction

SCHEDULE | Thu, Jan 2 to Thu, Jan 23, 2025

LOCATION | Chasseneuil-du-Poitou,FR

MARKET - Used Electronic Assembly Machines For Sale

P&P / FEEDERS

Panasonic NPM-W2

SMTUnion - Panasonic NPM-W2 Chipshooter

SMTUnion

PCB INSPECTION

Viscom S3088 Ultra Chrome 3D AOI

Lewis & Clark Viscom S3088 AOI

Lewis & Clark

P&P / Feeders

Assembleon AX201

KD Electronics - Assembleon AX201

KD Electronics

PCB Cleaners

Speedline Aquastorm 200

Baja Bid

P&P / FEEDERS

Assembleon Yamaha MG1R Pick and Place

World Equipment Source - Assembleon /Yamaha MG1Rl P&P

World Equipment Source, LLC

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MARKET - Used PCB Assembly Equipment Wanted To Buy

PCB TEST

Agilent 3070

KD Electronics Agilent 3070

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Pick and Place/Feeders

Mydata My100, My200 or My300

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P&P / FEEDERS

Assembleon MG-1R

World Equipment Source Assembleon MG-1R

World Equipment Source, LLC

PCB TEST

Agilent 3070

Lewis & Clark Agilent 3070

Lewis & Clark

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█ Electronics Manufacturing & Assembly Events Calendar

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█ Electronics Manufacturing Training Courses & PCB Assembly Training

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