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SMTnet Express, February 17, 2022, Subscribers: 25,920, Companies: 11,522, Users: 27,065

Technical Library

Impact of Dust on Printed Circuit Assembly Reliability

Atmospheric dust consists of solids suspended in air. Dust is well known for its complex nature. It normally includes inorganic mineral materials, water soluble salts, organic materials, and a small amount of water. The impact of dust on the reliability of printed circuit board assemblies (PCBAs) is ever-growing, driven by the miniaturization of technology and the increasing un-controlled ...

Credits: CALCE Center for Advanced Life Cycle Engineering

Latent short circuit failure in high-rel PCBs caused by lack of cleanliness of PCB processes and base materials

Latent short circuit failures have been observed during testing of Printed Circuit Boards (PCB) for power distribution of spacecraft of the European Space Agency. Root cause analysis indicates that foreign fibers may have contaminated the PCB laminate. These fibers can provide a pathway for electromigration if ...

Credits: European Space Agency

Back to Basics - Why Clean?

Effectively removing contamination is one step toward guaranteeing the long-term reliability of mission critical circuit assemblies. While circuit boards in ordinary consumer products are not intended to last, high reliability applications in the military, aerospace, communication, medical and automotive industries demand a guaranteed, long-term product life.

Credits: ZESTRON

Cleaning PCBs in Electronics: Understanding Today's Needs

Because of the phase-out of CFCs and HCFCs, standard solder pastes and fluxes evolved from RA and RMA fluxes to No-Clean, to low residue No-Clean, to very low residue No-Clean. Many companies came out with their cleaning solutions, aqueous and semi-aqueous, with each product release being more innovative than the previous one. Unfortunately for most of the suppliers ...

Credits: Inventec Performance Chemicals

Forum search results for related keywords: cleaning : 584

Visit the Technical Library... Submit Your Technical Paper...

Electronics Forum

inline smt 1m 2 stage conveyor belt -- Hi guys, This stubborn conveyor (inline smt 1m 2 stage) keeps popping off its track. I have tried to replace the old belt, turn the new belt around, tighten it as much as I can, but it keeps coming off the little wheels as shown in the picture. Do you know what else I can try to do to keep the belt from slipping off? Attachments: 20220211_103842.jpg [2.5M]

Views: 2423

Aoi systems Scanspection -- Hello all, we have a laser machine in house(we bought it to cut foam) that looks pretty accurate. We are considering to start cutting our own repair stencils, so I am researching into the material side of it. Would you recommend what kind of material will be good for rework stencil?

Views: 858

Visit the Forum...

SMT, PCB Electronics Assembly Manufacturing News

Registration Open for Electrical Wire Processing Technology Expo (EWPTE)

Free of charge, EWPTE offers unique educational and networking opportunities... | IPC

IPC Electrical Wire Processing Technology Expo

Seeking Student Applications for 2022 Stromberg Scholarship

The SMTA is currently seeking student applications for the JoAnn Stromberg Student Leader Scholarship by April 29, 2022.... | SMTA

SMTA wants students to apply for scholarship

Unigen Introduces PCIe Gen 4 Switch Evaluation Kit in Collaboration with Microchip

"Mahogany" EVK Targets Low-Lane Count Applications Using SwitchtecTM PFX PM40052... | Unigen Corporation

Unigen Introduces PCIe Gen 4 Switc

Read all the NEWS...

SMT / PCB Products






VIGON® NX 700 Next Gen pH Neutral Cleaning






Unisoft ProntoPLACE SMT & Thru-hole Software

Heler dual lane Reflow Oven






GPD Global

PCBA Cleaning Machine ICT-5600

PCB Cleaning


View More New Products...

X-Tech Auctions ��� Where Technology Sells

SMT / PCB Equipment Auctions



AUCTION | 2nd in a Series: Complete N95 Mask Production Facility Remarkable Offering of Dukane & Branson Ultrasonic Welders Ace Controls-Fanuc N95 Nose Clip & Print Systems All Equipment Purchased New in 2020

AUCTIONEER | The Branford Group

TYPE | On-Line Auction

FEATURING | Complete N95 Mask Production Cells - Quantity 12

SCHEDULE | February 17-20, 2022

Branford Group Jan 19 & Feb 17 Auctions Announcement

AUCTION | Front & Back-End Semiconductor Manufacturing Assets


TYPE | On-Line Auction

FEATURING | Camtek Falcon 200S Optical Wafer Inspection Systems, Balzers LLS-801 Sputter System, Hitachi S6600 SEM, Edwards/Alcatel/Ebara Vacuum Pump(s), K&S ICONN Wire Bonder, KLA 8100 CD SEM, LTX Fusion-HF Tester, Rigaku 3640 X-Ray Fluorescence Wafer Analyzer, Strasbaugh 7AA Wafer Grinder(s)., Thermawave TP420 Ion Implant Dose Measurement System, Tokyo Electron UL2604 Horizontal Furnace, ULVAC Enviro Resist Stripper

SCHEDULE | February 7-24, 2022

Visit the Equipment Auctions Calendar...

Electronic Equipment Mart

MART - Used Equipment For Sale

AllSurplus Panasonic NPM-W P&P

Pick and Place/Feeders


KD Electronics - ASM Siemens Parts

Pick and Place/Feeders

KD Electronics

Qinyi Electronics - Panasonic DT401=M


Qinyi Electronics

 Digital Test MTS-505 Condo II

AOI / Automated Optical Inspection

Baja Bid

 Lewis & Clark Viscom S3088  AOI

AOI / Automated Optical Inspection

Lewis & Clark

World Equipment Source - Coherent Diode-Pumped Laser

PCB Labeling Equipment

World Equipment Source, LLC

View More Used Equipment For Sals... Send a RFQ to Equipment Suppliers ....

MART - Used Equipment Wanted

KD Electronics Agilent 3070

In-Circuit Testers

KD Electronics

 Baja Bid - Autosplice SAS/2

Wire Stripping Machines

Baja Bid

World Equipment Source Assembleon MG-1R

Pick & Place/Feeders

World Equipment Source, LLC

Lewis & Clark Agilent 3070

In-Circuit Testers

Lewis & Clark

See Buyers' Used Equipment Wants

Events Calendar


Pan Pacific Microelectronics Symposium | January 31 - 3 | SMTA

Dallas Expo & Tech Forum | March 22 | SMTA


Visit the Event Calendar...

Training Courses



IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training

 EPTAC - Your 2021 IPC Training Schedule

Online IPC Training & Certification - Now open for limited in-person training

Electronics Manufacturing and PCB Assembly Training Courses

Hand Solder Rev 8 Certification Course
Mar. 14 - Mar. 18, 2022 | New York, Rochester | EPTAC Corporation

Component Identification Online Live Certification
Mar 25, 2022 | New Hampshire, Manchester | EPTAC Corporation

IDEA-STD-1010 Essentials For Counterfeit Component Identification Online Live
Apr 13, 2022 | New Hampshire, Manchester | EPTAC Corporation

Counterfeit Components Workshop Online Live Training
Apr 15, 2022 | New Hampshire, Manchester | EPTAC Corporation

Visit All Training Courses...

Career Center

JOBS - Post your job openings 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

Nashville, NC | ACDi

Sr, CAD Engineer (SMT stencil)

Bangalore, India

Find your next job now... Find your next employee now...

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

 ZESTRON Webinar - Designing for Reliability in Class III Assemblies - October 26, 2021

NextPCB - Free PCB Design Checker

Selective Conformal Coating System - GPD impleCoat

HELLER - Choose an Oven for Your Reflow Needs

MIRTEC MV 6 OMNI High-Speed / High-Performance 3D AOI MACHINE.

Software for PCB Manufacturing - Unisoft

EPTAC - Your 2021 IPC Training Schedule

X-Tech Auctions ��� Contact Us

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