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SMTnet Express, May 29, 2025, Subscribers: 26,2010, Companies: 12,409, Users: 29,643

█ Electronics Manufacturing Technical Articles

Stencil Design For Mixed Technology Through-Hole / Smt Placement And Reflow

This paper will review stencil design requirements for printing solder paste around and in through-hole pads / openings. There is much interest in this procedure since full implementation allows the placement of both through-hole components as well as SMD's and the subsequent reflow of both ...

Credit: Photo Stencil LLC

Stencil Printing Process Tools for Miniaturisation and High Yield Processing

The SMT print process is now very mature and well understood. However as consumers continually push for new electronic products, with increased functionality and smaller form factor, the boundaries of the whole assembly process are continually being challenged. Miniaturisation raises a number ...

Credit: ASM Assembly Systems (DEK)

The Effect of Higher Stencil Tension on Printing Performance

In this article we will examine if there is a measurable difference in the printing performance when using stencils which have a higher tension than is commonly accepted in the industry. Alpha's new tensoRED™ High Tension Frame System will be introduced during this wider examination ...

Credit: Alpha Assembly Solutions

Optimizing Stencil Design For Lead-Free SMT Processing

As any new technology emerges, increasing levels of refinement are required to facilitate the mainstream implementation and continual improvement processes. In the case of lead-free processing, the initial hurdles of alloy and chemistry selection are cleared on the first level...

Credit: Cookson Electronics Assembly Materials

Using Stencil: Design to Reduce SMT Defects

Solder paste printing is understood to be the leading contributor of defects in the electronics assembly process. Because yield accounts for such a large percentage of the margin, the greatest opportunity to improve profitability in the assembly of ....

Credit: AVI Precision Engineering Pte Ltd

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█ Printed Circuit Board Assembly & PCB Design Forum

How to Identify Marubeni SMBB-Type LEDs from Drops -- I've got a bunch of Marubeni SMBB-series high power LEDs that came as drops, and I'm having trouble figuring out which ones are which. They all look exactly the same -- same size, same shape, no markings -- and I know they're not all the same part number. Only difference is wavelengths for them. Here's the series I'm talking about: https://tech-led.com/product/high-power-led/smbb-high-power/smbbseries/ The problem is that the whole series shares the same package, and there's no way to tell the difference just by looking. I was wondering: Is there any way to test these to figure out what wavelength/color they are? Has anyone dealt with this kind of situation before?

Avoiding Voiding -- In a chat with our new SMTA assistant MAX, I was guided to this paper: https://smta.org/global_engine/download.aspx?fileid=40EFF21B-9E21-4CD2-AADA-3F65EA0327FD&ext=pdf It seems to suggest that windowing of ground pads on BTCs may not be such a bright idea. I always believed that windowing provides more opportunities for volatiles to escape and thus reduce voiding. Any thoughts on this?

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█ SMT, PCB Manufacturing Companies - Industry Directory

POWER MEMBERS

DEVON-TECH TECHNOLOGY CO.,LTD - SMT machine Dealer

Imagineering, Inc. - Since 1986, our focus on delivering quality PCB's and Assemblies hasn't changed. Our top priority has always been to understand what the customer values, evaluate their needs and deliver the best-in-class service and products.

BEST Inc. - BEST is a certified master IPC Training and Solder Certification center. We provide comprehensive courses for both Instructors and Operators including IPC-A-610, IPC J-STD-001, IPC-A-600, IPC/WHMA-A-620, and IPC 7711/7721 standard

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NEWEST SUBSCRIBERS

Shenzhen Yuhan Electronic Technology Co., Ltd - - Shenzhen Yuhan Electronic Technology Co., Ltd. specialize in PSA nitrogen generators, oxygen generators, nitrogen purification systems, and gas equipment solutions.

Hebei Cechen New Material Co., LtdHebei Cechen New Material Co., Ltd - Hebei Cechen New Material Co., Ltd. was founded in 1986, is a collection company with production, research, development and sales ,as one of the professional stainless steel wire, metal mesh manufacturers, located in Anping County

Nabell USA Corporation - Nabell USA Corporation is a leading manufacturer of custom bellows and protective covers for a wide range of industries, including machine tools, medical devices, optics, robotics, and industrial automation.

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█ SMT, PCB Electronics Assembly Manufacturing Industry News

KIC Highlights Thermal Analysis System (TAS) Software Built for Real-World Electronics Assembly at SMTA Juarez

KIC is excited to announce its participation in the SMTA Juarez Expo & Tech Forum, taking place Thursday, June 5, 2025, at the Injectronics Convention Center in Ciudad Juarez, Chihuahua, Mexico....

KIC Thermal

Symposium on Counterfeit Parts & Materials Program Finalized

The SMTA is pleased to announce the technical program for the Symposium on Counterfeit Parts & Materials. Co-organized by SMTA and the Center for Advanced Life Cycle Engineering (CALCE), the event will be held June 24-26, 2025 in Hyattsville, Maryland at the College Park Marriott Conference Center....

Surface Mount Technology Association (SMTA)

Semi-Kinetics Named Finalist for 2025 Orange County Emerging Growth Award

Semi-Kinetics has been named one of only three finalists for the Emerging Growth Award at the 30th Annual ACG Orange County Awards, recognizing the region's most innovative and high-performing middle-market companies....

Semi-Kinetics

picture of equipment

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█ SMT / PCB Products & Services

NEW SMT / PCB EQUIPMENT & SERVICES - For Sale

Selective Soldering

Selective Wave Soldering Machine I.C.T-SS550

Dongguan I.C.T Technology

SELECTIVE SOLDERING

Pillarhouse Jade Handex

Pillarhouse USA

PCB SOFTWARE

ProntoGERBER CONNECTION

Unisoft

PCB ASSEMBLY

PCB Fab & Assembly

Imagineering

REFLOW OVEN

Voidless / Vacuum Reflow Soldering Oven

Heller

PCB DISPENSING

Island Series Table Top Dispensers

GPD Global

PCB INSPECTION

MS-11e High Speed In-Line SPI System

Mirtec

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█ SMT / PCB Assembly Equipment Auctions

Currently, no featured auctions are on SMTnet

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█ Electronic Equipment Market

MARKET - Used Electronic Assembly Machines For Sale

PCB PRINTING

DEK NEOHORIZON 03iX

SMTUnion - DEK NEOHORIZON 03iX

SMTUnion

PCB INSPECTION

Viscom S3088 Ultra Chrome 3D AOI

Lewis & Clark Viscom S3088 AOI

Lewis & Clark

P&P / Feeders

Assembleon AX201

KD Electronics - Assembleon AX201

KD Electronics

PCB Cleaners

Speedline Aquastorm 200

Baja Bid

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MARKET - Used PCB Assembly Equipment Wanted To Buy

PCB TEST

Agilent 3070

Lewis & Clark Agilent 3070

Lewis & Clark

PCB TEST

Agilent 3070

KD Electronics Agilent 3070

KD Electronics

Pick and Place/Feeders

Mydata Agilis Feeders

Baja Bid

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█ Electronics Manufacturing & Assembly Events Calendar

EVENTS

KOKI Announces Upcoming Webinar on a Residue-Free Soldering Solution for Power Devices Using Formic Acid Reflow

KOKI will host a free, live webinar on Thursday, May 29, 2025, at 12:00 PM CDT titled "A Residue-Free Soldering Solution for Power Devices with Formic Acid Reflow." The session will be led by Shantanu Joshi, KOKI's Head of Customer Solutions and Operational Excellence....

Koki Company LTD

Symposium on Counterfeit Parts & Materials Program Finalized

Surface Mount Technology Association (SMTA)

Wiring the World Together: IPC and WHMA Unveil Global Wire Harness Competitions and Championship

IPC, in collaboration with the Wiring Harness Manufacturer's Association (WHMA), has organized the first-ever World Wire Harness Competitions and Championship. Regional country competitions will take place between March and December 2025 and final championship will be held at IPC's Integrated Electronics Manufacturing & Interconnections (IEMI) event scheduled January 29 to 30, 2026, in Bangalore, India. The global initiative promotes industry's best practices and strengthens the skilled workforce behind cable and wire harness assembly....

Association Connecting Electronics Industries (IPC)

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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