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SMTnet Express, July 20, 2023, Subscribers: 24,931, Companies: 11,843, Users: 28,180

█  Electronics Manufacturing Technical Articles

An Effective Design of Experiment Strategy to Optimize SMT Processes

It is now widely accepted that using designed experiments is the most effective way to optimize surface mount technology (SMT) processes. This situation begs the question "what is an effective strategy in implementing this powerful tool?" This paper will present such a strategy that incorporates Taguchi's approach for screening, full factorial analysis for optimization and central composite design for precise modeling. We will present these techniques using MINITABTM Release 13 statistical software and printed circuit board industry applications.

Credit: Indium Corporation

PCB Design Optimization of 0201 Packages for Assembly Processes

The demand for 0201 components in consumer products will increase sharply over the next few years due to the need for miniaturization. It is predicted that over 20 billion 0201 components will be used in more than one billion cell phones worldwide by the year 2003. Therefore, research and development on 0201 assembly is becoming a very hot topic. The first step to achieve a successful assembly process is to obtain a good PCB design for 0201 packages. This paper presents the data and criteria of PCB design for 0201 packages, including the pad design for 0201 components, and the minimum pad spacing or component clearance between 0201 components or between 0201 and other components. A systematic study on pad design and pad spacing was undertaken, using two test vehicles and three Design of Experiments (DOEs). In the first DOE, 2 out of 18 types of 0201 pad designs were selected based on process yield. The second DOE was focused on pad spacing, including 10mil, 8mil, 6mil and 4mil. The third experiment was final optimization, using two types of optimized pad designs with 10mil, 8mil and 6mil pad spacing. Through the above experiments, the design guideline for PCB layout for 0201 packages and the assembly process capability are identified.

Credit: Flextronics International

Experimentation for Success

The technical tips have offered valuable details and techniques into various aspects of electronics manufacturing. This has been validated by the reader responses concurring with our assessments, offering additional insight, or in some rare cases, stating divergent points of view on any particular matter. In a bit of a strategic departure from the normal range of electronic manufacturing topics, ACI Technologies,Inc. would like our readers to consider the importance of being well prepared in the arena of designed experiments in order to properly qualify a manufacturing process. This particular topic has relevance because of the associated scope of work ACI Technologies encounters in numerous projects from material R&D to manufacturing process optimization, which require appropriate experimental designs to ascertain the significant data.

Credit: ACI Technologies, Inc.

Optimizing Batch Cleaning Process Parameters for Removing Lead-Free Flux Residues on Populated Circuit Assemblies

Electronic assembly cleaning processes are becoming increasingly more complex because of global environmental mandates and customer driven product performance requirements. Manufacturing strategies today require process equivalence. That is to say, if a product is made or modified in different locations or processes around the world, the result should be the same. If cleaning is a requirement, will existing electronic assembly cleaning processes meet the challenge? Innovative cleaning fluid and cleaning equipment designs provide improved functionality in both batch and continuous inline cleaning processes. The purpose of this designed experiment is to report optimized cleaning process parameters for removing lead-free flux residues on populated circuit assemblies using innovative cleaning fluid and batch cleaning equipment designs.

Credit: Austin American Technology

Applied Statistics and Experimental Design

Statistics originally served to describe matters of the state (status of state) by capturing numerically various aspects of full populations. Today this is called a census, from Latin censere (to count or estimate). Recall the historical census of Emperor Augustus. Nowadays the field of statistics focusses mainly on samples, i.e., part of the total. The goal is to make statements or conclusions about the whole population. This process is referred to as induction, from Latin inducere (to lead to). Its validity depends crucially on the process of sampling.

Credit: University of Washington

SEE Forum results for related keywords - "experiment" (4614)

LEARN MORE in the Technical Library...

In the past year, the number of technical papers that contributors added to the Technical Library was: 145

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█  Printed Circuit Board Assembly & PCB Design Forum

Sn99Cu07 and Sn100 -- Dear proffessionals! Question is about this alloys - Sn99Cu07 and Sn100 (Sn100C,Sn100Ni+ etc.). Is it O'k to mix them? In my case to use Sn99Cu07 as addition to selective soldering machine bath with Sn100C? Main components are the same, but minor additives are different... Also may be somebody can compare this alloys - which one is better, or the are almost the same in production? Thanks!

Views: 165

QFN/BTC Side Termination - Fillets and Wettability -- Since side fillets are not a requirement for QFNs/BTCs due to some packages not having wettable side terminations, how does one determine if the side terminations are actually solderable/designed for wetting? Is it simply if the side terminations are plated in the same way the bottom terminations are, then fillets are likely/preferred? If not plated and only exposed copper from packaging process, does that indicate no side fillets?

Views: 244

SEARCH the PCB Assembly Forum

In the past year, the number of threads opened on the FORUM seeking your help was: 281

CONTRIBUTE to the Assembly Forum...

█  SMT, PCB Electronics Assembly Manufacturing Industry News

Heraeus Introduces a Disruptive New Product: PTC4900 Series Self-Regulating Heater Inks — the Ultimate Customizable Solution for PTC Heater Needs

Heraeus Electronics introduces the PTC4900 Series Self-Regulating Heater Inks, a breakthrough in heater technology. These customizable PTC (Positive Thermal Coefficient) inks offer enhanced performance, expanded operating temperatures, and unparalleled customization options. Designed for precise temperature control, they are suitable for various applications, including EV battery heaters, ADAS heaters, flooring heaters and cabin comfort heaters....

Heraeus

Dorigo Systems Chooses CalcuQuote for Streamlined Quoting Process

CalcuQuote is pleased to announce that Dorigo Systems, a leading provider of electronic manufacturing services (EMS) based in Burnaby, BC, Canada, has chosen the QuoteCQ RFQ Management System to upgrade its quote process. This collaboration brings enhanced efficiency and optimization to the quoting process at Dorigo....

CalcuQuote

**ONLINE AUCTION** Complete Closure of PCB Facility!

Equipment from a Custom Thick Film Hybrid Micro Electronics Manufacturer Clean Room, Assembly, Test & Inspection Equipment — Owner Retiring, Everything Must Go!...

The Branford Group

picture of MRSI 505 machine;

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█  SMT / PCB Products & Services

NEW SMT / PCB EQUIPMENT & SERVICES - For Sale

SELECTIVE SLDRNG

Pillarhouse Jade Handex

Pillarhouse USA

PCB INSPECTION

Mirtec

PCB SOFTWARE

ProntoVIEW-MARKUP

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Imagineering - We are circuit board assembly & fabrication experts

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PCB REFLOW OVEN

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GPD Global

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The Branford Group - Aug 1 - Aug 10, 2023 Auction


█  SMT / PCB Assembly Equipment Auctions

AUCTION | Precision Circuit Solutions — Complete Closure of PCB Facility: Custom Thick Film Hybrid Micro Electronics Mfr; Clean Room, Assembly, Test & Inspection Equipment

AUCTIONEER | The Branford Group

TYPE | Online Auction

FEATURING | Online Auciton of Precision Circuit Solutions Complete Closure of PCB Facility — Owner Retiring — Custom Thick Film Hybrid Micro Electronics Mfr — Clean Room, Assembly, Test & Inspection Equipment

SCHEDULE | Tue, Aug 1 to Thu, Aug 10, 2023

AUCTION OPENS | Tuesday, August 1, 2023 9:00 AM (EST)

AUCTION CLOSES | Thursday, August 10, 2023 10:00 AM (EST)

EQUIPMENT LOCATION | Clearwater, FL

FEATURED ITEMS INCLUDE | 2018 Henli Eletek HSK2505—0611 Belt Furnace, 2010 Kaeser Airbox.1 Compressor, V—Tek TM—50 OEM Taping Machine, Laser Trimming System 44, Trio-Tech C—103—006 Centrifuge, NuArc FT26V3UPNS—4KN Flip Top Plate Maker, Micro Automation Model 1006 Dicing Saw, Cyberoptics LSM/Large Microscope, Dry Storage Cabinets, Amscope Microscope, Midas DL—3 de—lidder, [2] MRSI 505 Advanced Packaging Systems, Thermotron SE-300—2—2 ESS Chamber, [2] Blue M 0V—8A Oven, Blue M SW—17TA Oven, Thermo Scientific ThermoFlex 2500 Chiller, Benchtop Test & Measurement, Workbenches, Zebra Z4Mplus & S4M Printers, Racking, Microscopes Misc and MORE!!!

The Branford - Aug 1 - Aug 10, 2023 Auction

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█  Electronic Equipment Mart

MART - Used Electronic Assembly Machines For Sale

P&P / FEEDERS

SMTUnion - Panasonic NPM-W2 Chipshooter

SMTUnion

P&P / FEEDERS

World Equipment Source - Assembleon /Yamaha MG1Rl P&P

World Equipment Source, LLC

P&P / FEEDERS

AllSurplus Panasonic NPM-W P&P

AllSurplus

P&P / Feeders

KD Electronics - Assembleon AX201

KD Electronics

AOI INSPECTION

Lewis & Clark Viscom S3088 AOI

Lewis & Clark

Soldering - Selective

ACE Kiss 103

Baja Bid

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99 of your RFQs were forwarded to equipment suppliers in the past 365 days

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MART - Used PCB Assembly Equipment Wanted To Buy

PCB TEST

KD Electronics Agilent 3070

KD Electronics

Soldering - Reflow

Vitronics XPM 1240

Baja Bid

P&P / FEEDERS

World Equipment Source Assembleon MG-1R

World Equipment Source, LLC

PCB TEST

Lewis & Clark Agilent 3070

Lewis & Clark

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█  Electronics Manufacturing & Assembly Events Calendar

EVENTS

Michigan Expo and Tech Forum | August 15

SMTA

ADD Your Electronics Manufacturing and Assembly Event Now ...


█  Electronics Manufacturing Training Courses & PCB Assembly Training

FIND TRAINING FOR:

IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training

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EPTAC - 2023 IPC Certification Training Schedule

BlackFox - Experience the BlackFox Difference

TRAINING - Electronics Manufacturing and PCB Assembly Training Courses

IDEA-STD-1010 Essentials Online Live Training Course

Multiple dates and locations. Check the link for details

EPTAC Corporation

Idea Counterfeit Component Workshop Online Live Training

Multiple dates and locations. Check the link for details

EPTAC Corporation

Component Identification Online Live Certification

Multiple dates and locations. Check the link for details

EPTAC Corporation

TRAINING - PCB Inspection Electronics Manufacturing Training Courses

IPC-A-640 Interactive PCB Inspection Lab (CIT or CIS Option)

Multiple dates and locations. Check the link for details

EPTAC Corporation

TRAINING - PCB Rework and Hand Soldering Training Courses

Customizable Basic Hand Soldering

Multiple dates and locations. Check the link for details

Blackfox Training Institute, LLC

TRAINING - Online Electronics Manufacturing and Assembly Training Courses

Reflow Soldering 101 Training Course

Surface Mount Technology Association (SMTA)

IPC/WHMA-A-620 Expert (CSE) Certification Training Course

EPTAC Corporation

Live Online Training - IPC/WHMA-A-620 Trainer (CIT) Challenge Test

ACI Technologies, Inc.

Live Online Training - IPC-A-610 Expert (CSE) Certification Training Course

ACI Technologies, Inc.

Live Online Training - IPC-A-610 (CIT)

ACI Technologies, Inc.

VISIT All Electronics Manufacturing Training Courses...


█  Electronics Manufacturing & PCB Assembly Jobs

CAREER CENTER - Job Needs & Wants

JOBS - POST your job openings now

Manufacturing Analyst/Cost Accountant

Williamsport, Pennsylvania, USA

Spartronics

Program Manager

Williamsport, Pennsylvania, USA

Spartronics

Senior Quality Engineer

Williamsport, Pennsylvania, USA

Spartronics

Product Engineer

Williamsport, Pennsylvania, USA

Spartronics

Corporate Director of Quality

Williamsport, Pennsylvania, USA

Spartronics

Purchasing Specialist

Brooksville, Florida, USA

Spartronics

Business Development Manager- High Level Assembly- Remote

Plaistow, New Hampshire, USA

Spartronics

Process Engineer

Williamsport, Pennsylvania, USA

Spartronics

Senior Program Manager

Williamsport, Pennsylvania, USA

Spartronics

Field Service Engineer

Travel Position in North America, Colorado, USA

A-Tek Systems Group LLC

RESUMES - POST your resume now

Position: Manufacturing Process Technician

Job Category: Engineering Maintenance Production Technical Support

Current location: Shirdi, India

Willing to Relocate?: Yes

Summary of Qualifications: • Hands on experience in PLC based machine, DEK Printer Machine, Camlot Glue dot machine, Fuji NXT, SPI machine, reflow: Vitronics XPM2/3, • Expertise in SMT Profiling Qualification & NPI Build, • Soldering defects, Analysis & rework. • Line modification & Assembly tool modification

FIND your next job now... FIND your next employee now...


█  PCB Design & Assembly Industry Associations

SMTA Logo

Surface Mount Technology Association (SMTA)

SMTA 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 Logo

Association Connecting Electronics Industries (IPC)

IPC 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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The Branford Group Aug 1 - Aug 10, 2023 Auction

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X-Tech Auctions – Contact Us

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Sell your surplus machinery!!! We buy all types of Fabrication, CNC machines, and More. Contact Tom@ xtechauctions.com for more details.

SMTUnion - SMT manufacturing cost reduction strategies

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