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SMTnet Express, February 20, 2025, Subscribers: 26,068, Companies: 12,363, Users: 29,499

█ Electronics Manufacturing Technical Articles

Moisture Measurements in PCBs and Impact of Design on Desorption Behaviour

Moisture accumulates during storage and industry practice recommends specific levels of baking to avoid delamination. This paper will discuss the use of capacitance measurements to follow the absorption and desorption behaviour of moisture. The PCB design used in this work, focused on the issue of baking out moisture trapped between copper planes. The PCB was designed with different densities ...

Credit: National Physical Laboratory

Controlling Moisture in Printed Circuit Boards

Moisture can accelerate various failure mechanisms in printed circuit board assemblies. Moisture can be initially present in the epoxy glass prepreg, absorbed during the wet processes in printed circuit board manufacturing, or diffuse into the printed circuit board during storage. Moisture can reside in the resin, resin/glass interfaces, and micro-cracks or voids due to defects. Higher reflow ...

Credit: CALCE Center for Advanced Life Cycle Engineering

Impact of FPC Fabrication Process on SMT Reliability

The functionality of electronic devices continues to increase at an extraordinary rate. Simultaneously consumers are expecting even more and in ever smaller packages. One enabler for shrinking electronics has been the flexible circuit board that allows the circuit board to fit a wide variety of shapes. Flexible printed circuits (FPC) have the capability to be very thin and can have unpackaged ...

Credit: Starkey Hearing Technologies

MOISTURE PHYSICS AND PROCESS OF DRYING OF PRINTED CIRCUIT BOARDS

The aim of this collection and interpretation is to develop an understanding of moisture in materials, especially in printed circuit boards, to know the effects on further processing and to be able to derive targeted corrective actions when moisture-related problems occur. In principle, the considerations are valid for all types of PCBs. Although these basic principles are ...

Credit: Wurth Elektronik GmbH & Co. KG

RESULTS of Searches for related keywords - "moisture pcb" (318)

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█ Printed Circuit Board Assembly & PCB Design Forum

Nitrogen Reflow leaving residue on Solder Joints -- When using nitrogen during reflow with a water washable RELO paste, we see a residue left on the solder joints that is not present when nitrogen is off. It is enough that we must wash the boards prior to AOI. Does anyone experience this?

When to validate ? -- Regarding medical devices such as implantables : Does screen print, SPI,PnP,Reflow,and AOI INDIVIDUALLY require OQ and PQ everytime a new job is built ? FDA regulatory requirement states : Validation is required when a process cannot be fully verified by subsequent inspection and test. In my world the SPI and AOI monitor verify every PCB that goes down the SMT line.(subsequent inspection) These programs are created from a "golden" screen print and assembled board that are verified by first article inspection. In other words SPI and AOI are automatically validated during the first article process. This has satisfied every auditor I have ever worked with from aerospace to industrial electronics. With that being said, speaking FDA medical, why would one deem it necessary to perform OQ and PQ on every piece of equipment when a brand new job is being built ? The SPI and AOI fully inspect every PCB that goes down the line. Not to mention there is usually functional testing before product goes out the door. Help me understand. I am being told everthing needs to be validated. I have been in the industry for decades.

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█ SMT, PCB Manufacturing Companies - Industry Directory

POWER MEMBERS

KingFei SMT Tech - Main Products: 1. Original new and Original Used SMT/AI Spare Parts. 2. SMT Equipments And Related Machine( SMT Calibration, SMT Feeder Carts,Conveyer etc.) 3. Maintenace and Repair Service Pre-Sales Service Provide details ab

Flason Electronic Co.,Limited - Flason is high-tech enterprise focusing on SMT research and development,building new advanced solutions in SMT Assembly machines, like reflow oven, wave soldering machine, pick and place machine, AOI,SPI,PCB conveyor etc.

Dongguan Relay Electronics Co,. Ltd - At ZJ-SMT, we provide premium SMT and PCB assembly equipment and components from leading brands such as Panasonic, Yamaha, Fuji, etc

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Core Gaming - Core Gaming is your ultimate destination for all things gaming. As a premier video game store, we offer a diverse range of game titles across multiple platforms to satisfy every gaming enthusiast.

Happy Wheels - Hello everyone. I am a freelance writer covering a variety of genres from lifestyle, technology to current games. I love exploring and traveling, entertaining. Happy to sign up!

Lenmark - Large wholesaler of primarily pre-owned equipment, some new.

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█ SMT, PCB Electronics Assembly Manufacturing Industry News

How I.C.T Supports Hearing Aid Manufacturers with Expert SMT Solutions？ Discover how I.C.T's comprehensive support for SMT production lines ensures the efficiency and precision needed in hearing aid manufacturing.... I.C.T ( Dongguan ICT Technology Co., Ltd. )
Nordson Electronics Solutions introduces the ASYMTEK Select Coat® SL-1040 Ultrasonic Cleaning Station for maintaining conformal coating equipment during electronics manufacturing See this unique nozzle cleaning system and speak with our experts at IPC APEX booth 3200... Nordson Electronics Solutions
RENEX Launches New U.S. Website with Expanded Presence in the North American Market RENEX is excited to announce the launch of its new U.S.-specific website at www.reeco-esd.us. This platform is designed to better serve North American customers, providing a dedicated resource for ESD furniture, ESD clothing, robotics, and cleanroom equipment.... RENEX

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█ SMT / PCB Products & Services

NEW SMT / PCB EQUIPMENT & SERVICES - For Sale

PCB SOFTWARE

ProntoGERBER CONNECTION

Unisoft

PCB ASSEMBLY

PCB Fab & Assembly

Imagineering

PCB REFLOW OVEN

1910 MK5 Dual Lane, Dual Temperature Reflow Oven

Heller

PCB DISPENSING

DS Series Dispensers for Large Boards

GPD Global

Reflow

PCB Reflow Oven Machine I.C.T Lyra Series

Dongguan I.C.T

SELECTIVE SOLDERING

Pillarhouse Jade Handex

Pillarhouse USA

PCB INSPECTION

MS-11e High Speed In-Line SPI System

Mirtec

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█ SMT / PCB Assembly Equipment Auctions

AUCTION | BCS Automotive Factory Closure -- BIDDING NOW OPEN!!!

AUCTIONEER | Baja Bid

TYPE | Online Auction

SCHEDULE | Tue, Feb 18 to Thu, Feb 27, 2025

OPENS | Tuesday, February 18, 2025 9:00 AM CST

CLOSING BEGINS | Thursday, February 27, 2025 at 10:00AM CST

FEATURING | SMT Manufacturing & SMT Equipment

MARKET - Used Electronic Assembly Machines For Sale

PCB INSPECTION

Viscom S3088 Ultra Chrome 3D AOI

Lewis & Clark Viscom S3088 AOI

Lewis & Clark

P&P / Feeders

Assembleon AX201

KD Electronics - Assembleon AX201

DEK NEOHORIZON 03iX

SMTUnion - DEK NEOHORIZON 03iX

SMTUnion

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

PCB TEST

Agilent 3070

KD Electronics Agilent 3070

KD Electronics

Pick and Place/Feeders

Mydata My100, My200 or My300

Baja Bid

PCB TEST

Agilent 3070

Lewis & Clark Agilent 3070

Lewis & Clark

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

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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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