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SMTnet Express, November 21, 2018, Subscribers: 31,479, Companies: 11,087, Users: 25,424

Technical Library

Understanding the Effect of Different Heating Cycles on Post-Soldering Flux Residues and the Impact on Electrical Performance

Brook Sandy-Smith, Indium Corporation, Terry Munson, Foresite Inc.

There are several industry-accepted methods for determining the reliability of flux residues after assembly. The recommended methods of test sample preparation do not always closely mimic the thermal cycle experienced by an assembly. Therefore, extraction from actual assemblies has become a popular method of process control to assess consistency of post-reflow cleanliness. Every method of post-reflow flux residue characterization will depend on the reflow process followed to prepare the coupon.

This investigation will focus on the effect of thermal conditions on the remainder of active ingredients in flux residues after assembly with no-clean solder pastes.

Forum search results for related keywords: ionic cleanliness. process control. SIR testing.

SMT / PCB Products

PCB ASSEMBLY

Reflow

Heller

Hand Assembly

Virtual Industries

Pick & Place

Count On Tools

Solder Paste Stencils

BEST, Inc.

Dispensing

GPD Global

Prototyping

SlingShot Assembly

Board Handling - Storage

Seika Machinery

Reflow

BTU International

PCB CLEANING

Cleaning

ZESTRON

Cleaning

Kyzen

PCB INSPECTION

Inspection

Mirtec

Inspection

YXLON

Inspection

Vi Technology

PCB REWORK

PCB SOFTWARE

Rework

PDR America

Rework

Kurtz Ersa

Software

Unisoft

Software

KIC

SMT / PCB Equipment Auctions

Former Assets of a Global Manufacturer of Flash Memory Cards and USB Flash Drives

November 27 - 29 | X-Line Asset Management

Electronic Equipment Mart

Electrovert OmniMax 7

Soldering - Reflow

X-Line Asset Management

Universal Instruments GSM1

Pick and Place/Feeders

Capital Equipment Exchange

DEK Horizon 02i

Screen Printers

IBE SMT Equipment

Mydata MY9 Only 5000USD

Pick and Place/Feeders

KD Electronics Ltd.

PCB Conveyors

Conveyors

JMW Enterprises

Manncorp MC-LED4V-600

Pick and Place/Feeders

LEL Semi

Events Calendar

Inspecting PWB Assemblies for Defects | December 11 | SMTA

IPC IMPACT EUROPE 2018 | November 28 - 29 | IPC

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

Career Center

Technical Sales Engineer

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Albany, NY | YINCAE Advanced Materials, LLC.

Sales Representative

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Orlando, FL | Horizon Sales

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Everywhere | SMTnet

Industry Associations Events

SMTA

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

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

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

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

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Used PCB Assembly Equipment - CE Exchange

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Speedprint SP700avi inline SMT screen printer

Metcal CV-5200 Connection Validation Soldering System

Dual Mode 3D AOI/SPI

Experience the Blackfox Difference - Premier IPC Training & Certification Center

Europlacer iineo+ SMT pick and place with integrated component tester

Kyzen Free PCB Cleaning Audit

Plasma systems that clean to the bottom of your via

Quality Pre-Owned SMT Eequipment - Robo-Tek

Inspection challenges? Comet Lab One - RF Power - X-ray & CT - ebeam under one roof

Turn-Key PCB Prototypes - On Your Bench in 5 Days

Soldertools.net - Rework Tools

NEW Fully featured benchtop dispenser - GPD Global

Vacuum Tweezers - pick up small components with ease

HELLER - Choose an Oven for Your Reflow Needs

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