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SMTnet Express, May 11, 2023, Subscribers: 24,729, Companies: 11,778, Users: 27,955

█ Electronics Manufacturing Technical Articles

Electronic Assembly Misprint Cleaning Advancements

Misprint Circuit Assemblies ■ Cleaning misprints is a production gap ■ Commonly cleaned in stencil cleaning equipment ■ Stencil Cleaning equipment allows for the collection and filtration of wet solder paste ■ Stencil Cleaning equipment short comings + Inability to clean B-Side misprints + Poor rinse quality

Credit: ITW EAE

Cleanliness of Stencils and Cleaned Misprinted Circuit Boards

The effectiveness of cleaning stencils and misprinted/dirty printed circuit boards can be effectively monitored. This can be done by washing known clean circuit boards and then checking to see if they have stayed clean as a result of the washing process.

Credit: Research In Motion

Cleaning Of Assembled PCBs - A Crucial Way of Enhancing Product Reliability and Avoiding Problems in the Field

Over the last years more and more international newspapers reported in Europe / USA and Japan: "Tunnel train got stuck under the Channel — thousands of people stranded", "Recall of thousands of cars to workshops for control and repair", "Power Failures left households without energy for hours." Very often news like this relate to malfunctions of electric and electronic circuits under adverse conditions or sometimes even in normal operating environment.

The presentation will deal with all kinds of aspect of cleaning to ensure the reliability of electronic circuitry in ever changing operation conditions in the most important industrial areas.

Credit: Kolb Cleaning Technology USA LLC

Stencil Printing Yield Improvements

Stencil printing capability is becoming more important as the range of component sizes assembled on a single board increases. Coupled with increased component density, solder paste sticking to the aperture sidewalls and bottom of the stencil can cause insufficient solder paste deposits and solder bridging. Yield improvement requires increased focus on stencil technology, printer capability, solder paste functionality and understencil cleaning. ... The purpose of this research is to study the wipe sequence, wipe frequency and wipe solvent(s) and how these factors interact to provide solder paste printing yield improvement.

Credit: KYZEN Corporation

SEE Forum results for related keywords - misprint -- 231

LEARN MORE in the Technical Library... SUBMIT Your Technical Paper...

█ Printed Circuit Board Assembly & PCB Design Forum

What method for cleaning a wiped board? -- When we get a bad print at SMT, the operator uses the alcohol wipes and wipes the paste off the board. Then they use compressed air and another wipe. In most cases this is sufficient. Most vias are tented, but there still remains some solder spheres in the voids between the pads and the solder mask. Also in some of the larger holes. Even then, it usually isn't a problem, but on a few board designs, getting paste spheres in areas that weren't meant to be printed is an issue. This isn't the best photo, but you can still see the paste. Does anyone take any additional steps to cleaning a wiped print besides what I described above? I did try another additional step with some degree of success, but ideally I'd like better results.

MYdata Hydra -- I'm using 15E with tpsys software 3.1.2 and the machine is not using the hydra tools, hydra bank and tools are installed, package and components has the hydra tools, but is only using single mount.

SEARCH the PCB Assembly Forum VISIT the PCB Assembly Forum...

█ SMT, PCB Electronics Assembly Manufacturing Industry News

Global Banking Crisis Continues; Inflation Rates Remain Stubbornly High in Both Europe and the United States

IPC Issues April Economic Outlook Report...

Association Connecting Electronics Industries (IPC)

Creation Technologies Doubles Production Capacity at St. Peter, MN Facility

Creation Technologies today announced the completion of its facility expansion in St. Peter, MN. With the expansion, the company increases its floor space to a total of 88,880 ft2. A ribbon cutting ceremony was held Wednesday, May 3, 2023 at the upgraded facility....

Creation Technologies

Creation Technologies Production at St. Peter, MN

BIN95 Rolls Out New PLC Training Solutions to Meet Growing Demand

"Customers know the importance of the troubleshooting training we provide when they select our PLC training," said Don Fitchett, president of Business Industrial Network. "BIN95's training courses not only teach best practices in working with automation control, but they do so efficiently. As the founder, author, and trademark holder of the 'True Downtime Cost' ® (TDC), we take great pride in knowing our training courses are sought after for their unique focus on minimizing downtime."...

Business Industrial Network

BIN95 Rolls Out PLC Training

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█ SMT / PCB Products & Services

NEW SMT / PCB EQUIPMENT & SERVICES - For Sale

PCB ASSEMBLY

PCB Fab & Assembly

Imagineering

PCB REFLOW OVEN

Flux-Free Formic Acid Reflow Oven

Heller

PCB DISPENSING

Dispense Pumps for Integration

GPD Global

Inspection

I.C.T AOI Solution

I.C.T

SELECTIVE SOLDERING

Pillarhouse Jade Handex

Pillarhouse USA

PCB INSPECTION

MV-7 FIVE CAMERA In-Line AOI System

Mirtec

PCB SOFTWARE

ProntoTEST-FIXTURE - ATE Programming

Unisoft

VIEW More New Electronic Manufacturing Products...

█ SMT / PCB Assembly Equipment Auctions

Currently, no featured auctions are on SMTnet

VISIT the Assembly Equipment Auctions Calendar...

█ Electronic Equipment Mart

MART - Used Electronic Assembly Machines For Sale

AOI INSPECTION

Viscom S3088 Ultra Chrome 3D AOI

Lewis & Clark Viscom S3088 AOI

Lewis & Clark

Pick and Place/Feeders

Mydata MY100LXe-10

Baja Bid

P&P / FEEDERS

Panasonic NPM-W2

SMTUnion - Panasonic NPM-W2 Chipshooter

SMTUnion

Gen'l Purpose T&M

Zeiss LSM-880 Laser Scanning Microscope

World Equipment Source, LLC

P&P / FEEDERS

Panasonic NPM-W P&P

AllSurplus Panasonic NPM-W P&P

AllSurplus

P&P / Feeders

Assembleon AX201

KD Electronics - Assembleon AX201

KD Electronics

VIEW More Used Equipment For Sale... SEND a RFQ to Equipment Suppliers ....

MART - Used PCB Assembly Equipment Wanted To Buy

PCB TEST

Agilent 3070

KD Electronics Agilent 3070

KD Electronics

P&P /FEEDERS

Mydata SMT P&P

Baja Bid - Mydata SMT Placement Machine

Baja Bid

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

SEE Buyers' Used Assembly Equipment Wants

█ Electronics Manufacturing & Assembly Events Calendar

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█ Electronics Manufacturing Training Courses & PCB Assembly Training

FIND TRAINING FOR:

IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

Online Training