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SMTnet Express, May 25, 2023, Subscribers: 24,770, Companies: 11,789, Users: 28,001

█  Electronics Manufacturing Technical Articles

An Investigation Into The Durability Of Stencil Coating Technologies

It is well documented that Nano coatings on SMT stencils offer many benefits to those assembling PWBs. With reduced standard deviation and improved transfer efficiency nano coatings can provide, there is also a cost. As PWB assemblers work to justify the return on investment, one key question continues to arise. What is the durability or life of these coatings and what can be done in the print process to maximize the life of the coatings?

This paper addresses durability of the coatings in relation to the number of print cycles and underside wipe cycles applied as well as materials used on the underside wipe process. Different parameters will be applied and data will be collected. The results of this study will be summarized to help those using or considering the use of these nano coatings to improve their print process and suggestions will be given to maximize the life of the coatings.


Compatibility of Cleaning Agents With Nano-Coated Stencils

High density and miniaturized circuit assemblies challenge the solder paste printing process. The use of small components such as 0201, 01005 and uBGA devices require good paste release to prevent solder paste bridging and misalignment. When placing these miniaturized components, taller paste deposits are often required. To improve solder paste deposition, a nano-coating is applied to laser cut stencils to improve transfer efficiency. One concern is the compatibility of the nano-coating with cleaning agents used in understencil wipe and stencil cleaning. The purpose of this research is to test the chemical compatibility of common cleaning agents used in understencil wipe and stencil cleaning processes.Compatibility of Cleaning Agents With Nano-Coated Stencils

Credit: KYZEN Corporation

Hand Printing using Nanocoated and other High End Stencil Materials

There are times when a PCB prototype needs to be built quickly to test out a design. In such cases where it is known early on that there will be multiple iterations or that a "one and done" assembly will be made that there will be some SMT assemblers who choose to hand print solder paste onto the board using a "frameless" stencil. In such cases where hand printing is used, the consistency of the printing technique has typically been in question. Furthermore, the effectiveness of both the nanocoatings as well as the higher end stainless steel materials, which have been heretofore studied in controlled printing environments, will be evaluated for their impact on the hand printing process.

The purpose of the study was to determine the effectiveness of select nanocoating materials as well as certain high end stainless steel stencil materials as they relate to the manual SMT printing process. A variety of nanocoatings were applied to SMT metal stencils and solder paste volume measurements were taken to compare the effectiveness.

Credit: BEST Inc.

Effect of Nano-Coated Stencil on 01005 Printing

The demand for product miniaturization, especially in the handheld device area, continues to challenge the board assembly industry. The desire to incorporate more functionality while making the product smaller continues to push board design to its limit. It is not uncommon to find boards with castle-like components right next to miniature components. This type of board poses a special challenge to the board assemblers as it requires a wide range of paste volume to satisfy both small and large components. One way to address the printing challenge is to use creative stencil design to meet the solder paste requirement for both large and small components. ... The most important attribute of a stencil is its release characteristic. In other words, how well the paste releases from the aperture. The paste release, in turn, depends on the surface characteristics of the aperture wall and stencil foil. The recent introduction of new technology, nano-coating for both stencil and squeegee blades, has drawn the attention of many researchers. As the name implies, nano-coated stencils and blades are made by a conventional method such as laser-cut or electroformed then coated with nano-functional material to alter the surface characteristics. This study will evaluate nano-coated stencils for passive component printing, including 01005.

Credit: Speedline Technologies, Inc.

SEE Forum results for related keywords - nano -- 110

LEARN MORE in the Technical Library...

In the past year, the number of technical papers that contributors added to the Technical Library was: 124

SUBMIT Your Technical Paper...

█  Printed Circuit Board Assembly & PCB Design Forum

Options for automatic reel change for a tape and reel system? -- I am designing a tape and reel system for a customer that want automatic reel change. Are there any products out there for automatically changing out the reels on a tape and reel machine?

Views: 7209

REHM SMS2 capacitive flood sensor type -- hi, does anyone know what type is Carlo Gavazzi sensor on REHM SMS2 reflow oven? The only marking I see on one I have is "Tripleshield tm"

Views: 1852

SEARCH the PCB Assembly Forum

In the past year, the number of threads opened on the FORUM seeking help was: 286

VISIT the PCB Assembly Forum...

█  SMT, PCB Electronics Assembly Manufacturing Industry News

CIL Upgrades Facility with Ionic Contamination Testing & PCB Cleaning Systems from Gen3

Farnborough, Hampshire, UK — Gen3, Global leader in SIR, CAF, Solderability, Ionic Contamination & process optimisation equipment, is pleased to announce they were once again selected by Custom Interconnect Ltd (CIL) as a preferred supplier. CIL, a leading contract electronic manufacturing service provider have acquired a new CM33L+ Ionic Contamination Testing system to complement their purchase of a second MBTech NC25 PCB Cleaning System....

Gen3 Systems

CIL Upgrades Facility

KO-M Tech Co., Ltd. First Korean Company to Earn IPC J-STD-001 and IPC-A-610 Qualified Manufacturers Listing

IPC's Validation Services Program has awarded an IPC J-STD-001 and IPC-A-610 Qualified Manufacturers Listing (QML) to KO-M Tech Co., Ltd. a professional electronics manufacturing company located in the Republic of Korea....

Association Connecting Electronics Industries (IPC)

SHENMAO Debuts Visible No-Clean BGA Flux SMBF-08 for Enhanced SMT Assembly and BGA Ball Mount Process

SHENMAO America, Inc. is proud to announce the release of its new SMBF-08 Visible No-Clean BGA Flux. This innovative flux is specifically designed to meet the demands of surface mount technology (SMT) assembly and BGA ball mount processes, offering enhanced visibility and performance....

Shenmao Technology Inc.

SHENMAO - New No-Clean BGA Flux

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█  SMT / PCB Products & Services



ISVI CameraLink

ISVI - Industrial Sensor Vision International Corporation


Unisoft - CELLS - MES & Tracking Software



Imagineering - We are circuit board assembly & fabrication experts



Mark 7 Series Reflow Oven



GPD Global


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



Pillarhouse Jade Handex

Pillarhouse USA

VIEW More New Electronic Manufacturing Products...

X-Tech Auctions ��� Where Technology Sells

█  SMT / PCB Assembly Equipment Auctions

AUCTION | Lewis & Clark | Jabil - Umkirch, Germany Auction

AUCTIONEER | Lewis & Clark

TYPE | Online Auction

FEATURING | Online Auction of Premium Quality CNC Machine Tools and Associated Equipment.... & MORE!!!

SCHEDULE | Wed, May 31 to Wed, Jun 14, 2023

Starts: May 31, 2023 11:00 AM CEST

Ends: Jun 14, 2023 11:00 AM CEST

INSPECTION | Viewing dates by appointment only

Jun 06, 2023 09:00 AM to 04:00 PM CEST & Jun 07, 2023 09:00 AM to 04:00 PM CEST

LOCATION | Im Kirchenhurstle, 4—6, 79224 Umkirch, Germany



2012 MORI SEIKI NMV3000DCG High-precision, 5-axis vertical Machining Centre, 2012 MORI SEIKI NL2000Y/500 5-axis Turning Centre, 2016 MAZAK QuickTurn Nexus 100-II MSY 4-axis Turning Centre, 2012 FANUC Robodrill Alpha-D21-MiA5 Vertical Machining Centre, 2011 FANUC Robodrill T21iFa Vertical Machining Centre, 2010 FANUC Robodrill Alpha-T21iFa Vertical Machining Centre, 2003 MAZAK 200 MSY 200 Turning Centre, 2000 YAMAZAKI SQT 100 MS-Y 4-axis Turning Centre, G+H FS420SD Precision Surface & Profile Grinding Machine, 2001 HERMLE C800V Vertical Machining Centre, CHARMILLES Robofil 290P Wire EDM, MAHR MarSurf XC 20 Contour Measuring Station, KLAEGER Bandsaw, WERTH Scope 400, Tooling & Inspection Equipment, 2017 Kasto Maschinebau Kastowin amc Bandsaw (Installed 2018), 2021 ABB IRB 14000 + PL-D Box YuMi Dual Arm Robot (Unused), and MORE!!!

Lewis & Clark - Jabil Auction

VISIT the Assembly Equipment Auctions Calendar...

█  Electronic Equipment Mart

MART - Used Electronic Assembly Machines For Sale


AllSurplus Panasonic NPM-W P&P


P&P / Feeders

KD Electronics - Assembleon AX201

KD Electronics


 Lewis & Clark Viscom S3088  AOI

Lewis & Clark

Pick and Place/Feeders

Mydata Agilis Magazines

Baja Bid


 SMTUnion - Panasonic NPM-W2 Chipshooter


Gen'l Purpose T&M

 Zeiss LSM-880 Laser Scanning Confocal Microscope with Airyscan

World Equipment Source, LLC

VIEW More Used Equipment For Sale...

In the past year, the number of your RFQs that SMTnet sent to equipment suppliers was: 105

SEND a RFQ to Equipment Suppliers ....

MART - Used PCB Assembly Equipment Wanted To Buy


World Equipment Source Assembleon MG-1R

World Equipment Source, LLC


Lewis & Clark Agilent 3070

Lewis & Clark


KD Electronics Agilent 3070

KD Electronics


Baja Bid - Mydata SMT Placement Machine

Baja Bid

SEE Buyers' Used Assembly Equipment Wants

█  Electronics Manufacturing & Assembly Events Calendar


Aguascalientes Expo and Tech Forum | June 1 to 1


Long Island Chapter Meeting: Fine Feature Paste Printing, Stencil Design and Solder Technology | May 31 to 31


Ontario Webinar: Microvia Reliability - Understanding the Effects of Process, Design & Materials | May 30 to 30


ADD Your Electronics Manufacturing and Assembly Event Now ...

█  Electronics Manufacturing Training Courses & PCB Assembly Training


IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training


BlackFox - Experience the BlackFox Difference

EPTAC - 2023 IPC Certification Training Schedule

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

Business Development Manager- High Level Assembly- Remote

Boston, Massachusetts, USA


Senior Buyer

Williamsport, Pennsylvania, USA



Brooksville, Florida, USA


Senior Program Manager

Williamsport, Pennsylvania, USA


Buyer/Supply Chain

Williamsport, Pennsylvania, USA


Field Service Engineer

Travel Position in North America, Colorado, USA

A-Tek Systems Group LLC

Field Service Engineer Project Manager and Scheduler

Longmont, Colorado, USA

A-Tek Systems Group LLC

Semi Conductor, Electonics, Aero Space manufacturers

Arizona,Oregon, New Mexico, California, USA

Staff Finders TECH

Quality Engineer

Brooksville, Florida, USA


Guest Speaker

Remote, USA



Shenzhen, China

Wiseinstrum Co.,Ltd.


Clamart, France


RESUMES - POST your resume now

0 Electronics Manufacturing & PCB Assembly Resumes

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

█  PCB Design & Assembly Industry Associations


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


Lewis & Clark - Jabil Auction

Selective Conformal Coating System - GPD impleCoat

HELLER - Choose an Oven for Your Reflow Needs

X-Tech Auctions ��� Contact Us

BlackFox - Experience the BlackFox Difference

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

SMTUnion - SMT manufacturing cost reduction strategies

 I.C.T ��� Total SMT line Provider

Pillarhouse Jade Handex - Lean shop selective soldering - Get high-speed flexible throughput at minimal cost.

Unused Equipment? - let BajaBid turn your EXCESS ASSETS into cash!

KD Electronics - High quality SMT nozzles, feeders, cutters, filters, etc

Software for PCB Manufacturing - Unisoft

 SMTnet Marketing Tool

Shenzhen Honreal Technology - About

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