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SMTnet Express, March 27, 2025, Subscribers: 26,117, Companies: 12,384, Users: 29,549

█ Electronics Manufacturing Technical Articles

Effect of Silicone Contamination on Assembly Processes

Silicone contamination is known to have a negative impact on assembly processes such as soldering, adhesive bonding, coating, and wire bonding. In particular, silicone is known to cause de-wetting of materials from surfaces and can result in adhesive failures. There are many sources for silicone contamination with common sources being mold releases or lubricants on manufacturing tools, offgassing during cure of silicone paste adhesives, and residue from pressure sensitive tape. This ...

Credit: Harris Corporation

Effect of Silicone Conformal Coating on Surface Insulation Resistance (SIR) For Printed Circuit Board Assemblies

Conformal coatings are considered a method of providing corrosion protection to electrical assemblies used in high-humidity or harsh environments. They are applied to PCBs for various reasons: to protect from moisture and contamination, to minimize dendritic growth, to provide stress relief, and for insulation resistance. These contribute to more durable handling, enhanced device reliability, and reduced warranty costs. Increased miniaturization of new circuit board designs requires ...

Credit: Dow Corning Corporation

Addressing Silicone Contamination Issues

Since adhesives and sealants must function by surface attachment, the nature and condition of the substrate surface are critical to the success of any bonding or sealing operation. One of the most important parameters is surface cleanliness or the absence of contaminants that can impair adhesion. There are many sources of possible contamination to worry about. Some of these are indicated in Table 1, but the list is ...

Credit: TECHSiL Ltd

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█ Printed Circuit Board Assembly & PCB Design Forum

Issues with Placement of Kingbright ATS2013UV385 LED on Siplace X — Sticky Silicone Surface —— Hello everyone, We're currently experiencing an issue with placing Kingbright ATS2013UV385 type LEDs on our PCBs using Siplace X equipment. The component has a sticky silicone coating on its surface, which causes it to adhere to the nozzle, preventing successful placement on the board. We have tried using various types of nozzles, including standard and ceramic ones of different sizes, but the result remains the same — the part sticks to the nozzle and fails to detach during placement. Has anyone encountered a similar issue or have suggestions for potential solutions? Any advice or insights would be greatly appreciated. Thank you in advance for your help!

Solder mask and silkscreen (ink) to be used in space products or onboard satelites -- Hello, I wish to know if someone on this forum are using solder mask made be Taiyo #PSR-4000 LDI (US) and the ink (silkscreen) product made by MadDermid Enthone, product ENTHONE 50-100R with CATALYS 9. Note that I found some outgassing data. But I seek some space heritage or space mission that confirm the performance of this product in space. Thank you for sharing and reply. Regards

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█ SMT, PCB Manufacturing Companies - Industry Directory

POWER MEMBERS

TW Marketing - B2B Strategic Marketing Communications, Specialties: Public Relations, Strategic Marketing Communications, Event Marketing, Media Planning & Placement, Social Media Marketing.

ASYMTEK Products | Nordson Electronics Solutions - A leader in automated fluid dispensing, jetting, and conformal coating. Products include stand-alone dispensing workstations and fully automated, in-line conveyorized systems with advanced process controls.

GPD Global - A Manufacturer of High Quality, Precision, Automated Fluid Dispensing and Conformal Coating Systems, SMT Cover Tape Peel Tester and Lead Forming machines for through-hole component preparation.

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NEWEST SUBSCRIBERS

Kelly Flow Control Valve Co., Ltd. - Kelly is one of the top five China valve manufacturers and offers ball, butterfly, gate, globe, check, and flow control valves for industrial use.

ABB - SpaceEngineering

Shenzhen J & M Electronics Co., Ltd - Since 2008,JMBom Electronics has been an industry leader in the global distribution of electronic components, offering high-quality ICs, transistors, diodes, and capacitors.

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█ SMT, PCB Electronics Assembly Manufacturing Industry News

Four Industry Leaders Receive IPC President's Award at IPC APEX EXPO 2025 In recognition of their leadership and significant contributions of time and talent to IPC and the electronics industry, four IPC volunteers were presented with the IPC President's Award at IPC APEX EXPO in Anaheim, Calif., on March 18, 2025. Recipients were Xaver Feiner, Zollner Elektronik AG; Thomas Marktscheffel, ASMTPT GmbH; Barry Matties, IPC Publishing Group/I-Connect007; and Cathy Hanlin, Precision Manufacturing Company Inc.... Association Connecting Electronics Industries (IPC)
Counterfeit Electronics & Materials Symposium Program Announced and Registration Open The SMTA is excited to announce the technical program for the Counterfeit Electronics & Materials Symposium. The symposium will be held April 15 to 16, 2025 at AFC Wimbledon in London, England.... Surface Mount Technology Association (SMTA)
Mexican Customer Visit I.C.T for Odd Form Insertion Machine Acceptance In March 2025, a customer from Mexico came to our factory to visit and accept their newly purchased equipment - the odd form insertion machine.This visit is an important part of our cooperation to ensure that the solution delivered meets and exceeds the customer's expectations.... I.C.T ( Dongguan ICT Technology Co., Ltd. )

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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

Printing

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

Dongguan I.C.T

SELECTIVE SOLDERING

Pillarhouse Jade Handex

Pillarhouse USA

Software

Unisoft ProntoAOI - AOI Machines Programming Software

UNISOFT Corporation

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

P&P / FEEDERS

Panasonic NPM-W2

SMTUnion - Panasonic NPM-W2 Chipshooter

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

P&P / FEEDERS

Assembleon Yamaha MG1R Pick and Place

World Equipment Source - Assembleon /Yamaha MG1Rl P&P

World Equipment Source, LLC

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MARKET - Used PCB Assembly Equipment Wanted To Buy

Pick and Place/Feeders

Mydata Agilis Feeders

Baja Bid

PCB TEST

Agilent 3070

Lewis & Clark Agilent 3070

Lewis & Clark

PCB TEST

Agilent 3070

KD Electronics Agilent 3070

KD Electronics

P&P / FEEDERS

Assembleon MG-1R

World Equipment Source Assembleon MG-1R

World Equipment Source, LLC

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█ Electronics Manufacturing & Assembly Events Calendar

EVENTS

Counterfeit Electronics & Materials Symposium Program Announced and Registration Open

The SMTA is excited to announce the technical program for the Counterfeit Electronics & Materials Symposium. The symposium will be held April 15 to 16, 2025 at AFC Wimbledon in London, England....

Surface Mount Technology Association (SMTA)

SMTA Announces Expanded Program for High Reliability: Strategic Technology Advancement Research Forum

The SMTA announced the finalized program for the High Reliability: Strategic Technology Advancement Research Forum which takes place on April 30 to May 1, 2025 in Olathe, Kansas, USA. The event, now in its third year, addresses challenges for electronics manufacturers in the high reliability sector....

Surface Mount Technology Association (SMTA)

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█ Electronics Manufacturing Training Courses & PCB Assembly Training

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IPC Certification

Soldering & Rework

PCB Design

Electronics Assembly

Electronics Inspection

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