New SMT Equipment: contamination on pcb finger (5)

Gold Contact Replating Kit

Gold Contact Replating Kit

New Equipment | Rework & Repair Equipment

The BEST Gold Contact Replating Kit includes the tools you need for fast replating and modification of circuit contacts. Edge contacts may require replating if they are contaminated with solder or become scratched during handling or do not meet the m

BEST Inc.

StencilQuik™ BGA Rework Stencils

StencilQuik™ BGA Rework Stencils

New Equipment | Solder Paste Stencils

Eliminate hours of solder mask damage repair time for bga sites while improving rework yield. Are you frustrated by the time it takes to repair mask damage underneath the BGA during the rework process?  Are you squeezed for space on the PCB in an

BEST Inc.

Electronics Forum: contamination on pcb finger (97)

Solder contamination on Golden Finger

Electronics Forum | Sat Aug 11 13:37:02 EDT 2007 | shing

I am a fresh SMT engineer. I am now facing a problems, solder contamination on Golden Finger nearly about 1 year. I don't know what going on. I have checked the cleaningness of stencil, solder paste handling,IR re-flow profile and even PCB surface

Solder contamination on Golden Finger

Electronics Forum | Thu Aug 16 13:06:59 EDT 2007 | shing

Will solder contamination related to PCB's surface finishing?

Industry News: contamination on pcb finger (20)

CCA Leads Charge on California Capital Today

Industry News | 2003-02-05 08:29:10.0

In Hopes of Convincing Legislators that there�s Still Time to Resuscitate the State PCB Industry

SMTnet

SMTA South East Asia Technical Conference on Electronics Assembly Program Finalized

Industry News | 2016-02-10 15:50:38.0

SMTA is excited to announce the finalized program and registration is now open for the South East Asia Technical Conference on Electronics Assembly. The event will be held April 12-14, 2016 at the Eastin Hotel in Penang, Malaysia.

Surface Mount Technology Association (SMTA)

Technical Library: contamination on pcb finger (2)

Characterize and Understand Functional Performance Of Cleaning QFN Packages on PCB Assemblies

Technical Library | 2022-12-19 18:59:51.0

Material and Process Characterization studies can be used to quantify the harmful effects that might arise from solder flux and other process residues left on external surfaces after soldering. Residues present on an electronic assembly can cause unwanted electrochemical reactions leading to intermittent performance and total failure. Components with terminations that extend underneath the package can trap flux residue. These bottom terminated components are flush with the bottom of the device and can have small solderable terminations located along the perimeter sides of the package. The clearance between power and ground render high electrical forces, which can propagate electrochemical interactions when exposed to atmospheric moisture (harsh environments). The purpose of this research is to predict and understand the functional performance of residues present under single row QFN component packages. The objective of the research study is to develop and collect a set of guidelines for understanding the relationship between ionic contamination and electrical performance of a BTC component when exposed to atmospheric moisture and the trade-offs between electrical, ionic contamination levels, and cleanliness. Utilizing the knowledge gained from undertaking the testing of QFN components and associated DOE, the team will establish a reference Test Suite and Test Spec for cleanliness.

iNEMI (International Electronics Manufacturing Initiative)

Relative Humidity Dependence of Creep Corrosion on Organic-Acid Flux Soldered Printed Circuit Boards

Technical Library | 2018-05-09 22:15:29.0

Creep corrosion on printed circuit boards (PCBs) is the corrosion of copper metallization and the spreading of the copper corrosion products across the PCB surfaces to the extent that they may electrically short circuit neighboring features on the PCB. The iNEMI technical subcommittee on creep corrosion has developed a flowers-of-sulfur (FOS) based test that is sufficiently well developed for consideration as an industry standard qualification test for creep corrosion. This paper will address the important question of how relative humidity affects creep corrosion. A creep corrosion tendency that is inversely proportional to relative humidity may allow data center administrators to eliminate creep corrosion simply by controlling the relative humidity in the data center,thus, avoiding the high cost of gas-phase filtration of gaseous contamination. The creep corrosion relative humidity dependence will be studied using a modified version of the iNEMI FOS test chamber. The design modification allows the achievement of relative humidity as low as 15% in the presence of the chlorine-releasing bleach aqueous solution. The paper will report on the dependence of creep corrosion on humidity in the 15 to 80% relative humidity range by testing ENIG (gold on electroless nickel), ImAg (immersion silver) and OSP (organic surface preservative) finished PCBs, soldered with organic acid flux.

iNEMI (International Electronics Manufacturing Initiative)

Videos: contamination on pcb finger (5)

How To Re-plate and Repair PCB Gold Fingers

How To Re-plate and Repair PCB Gold Fingers

Videos

BEST Inc master instructor Norman Mier demonstrates how to replate gold fingers using the BEST gold contact replating kit. In this video he demonstrates how to repair, prepare and replate the finger using a gold replating solution. If you want to lea

BEST Inc.

StencilQuik demonstration video. This breakthrough method allows you to simplify placement/replacement saving 50% or more of time required to rework BGAs or CSPs.This is a well developed BGA rework method.

StencilQuik demonstration video. This breakthrough method allows you to simplify placement/replacement saving 50% or more of time required to rework BGAs or CSPs.This is a well developed BGA rework method.

Videos

StencilQuik demonstration video. This breakthrough method allows you to simplify placement/replacement saving 50% or more of time required to rework BGAs or CSPs.This is a well developed BGA rework method. More on the StencilQuik(TM) process here:

BEST Inc.

Career Center - Resumes: contamination on pcb finger (1)

Sales Manager

Career Center | Shen Zhen, China | Management,Sales/Marketing

Working in GLORYPCB for 10 years.knowing electronic supply chain very well. especially for PCB PCBA assembly and other Electronic Manufacturing Service.Glorypcb is a professional electronic manufacturer located in Shenzhen with three facilities.offe

Express Newsletter: contamination on pcb finger (907)

Partner Websites: contamination on pcb finger (283)

682398 - FINGER GUARD

Heller Industries Inc. | https://hellerindustries.com/parts/682398/

Component Cracking Intermetallic Growth on PCB Dull solder joints Spare Parts Support Request Document Request Warranty replacement Global Network Inquiry ×   682398: FINGER GUARD Part #: 682398 Description

Heller Industries Inc.

SMTA Contamination, Cleaning and Coating Conference- Amsterdam 2017

ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/march/about-us/events/smta-amsterdam

SMTA Contamination, Cleaning and Coating Conference- Amsterdam 2017 MARCH Products Corporate | Global Directory | Languages Division Only All of Nordson SEMI Systems AP Batch Series TRAK Automated Series SPHERE Wafer Series PCB Systems VIA High Volume Series ModVIA Expandable Plasma System Plasma Applications

ASYMTEK Products | Nordson Electronics Solutions


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Precision PCB Services, Inc
Precision PCB Services, Inc

Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.

Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider

1750 Mitchell Ave.
Oroville, CA USA

Phone: (888) 406-2830