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Knowledge, Vision & Wisdom May 21, 2015
Can Ultrasonic Cleaning Damage Sensitive Components?
The use of an ultrasonic system is causing damage to one ultra sensitive SMT component. Can you recommend an alternative?
Board Talk
Cause of SMT Component Shift?
We are running the exact same boards through identical ovens, yet we're experiencing component shift with only one oven. What is the reason and the solution?
Ask the Experts
Revolutionary Printing Solution for SMT Assembly
Revolutionary Printing Solution for SMT Assembly
This paper presents new techniques in the screen print process with the aim of increasing solder paste transfer efficiency.
Production Floor
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High Reliability, Stress-free Copper Deposit
To overcome the challenge of metallizing smooth surfaces, a new stress-free electroless copper was developed to serve this important sector.
Materials Tech
What Drives Consumer Loyalty and Passion?
What Drives Consumer Loyalty and Passion?
When designing a new car, manufacturers might try to attract consumers with more horsepower, increased fuel efficiency, or a lower price point.
Technology Briefing
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Last Will and Testament of the BGA Void
This paper documents an investigation to determine the impact of voids in BGA and CSP components using thermal cycle testing per the IPC specification for tin-lead solder alloys.
Analysis Lab
Latent Short Circuit Failure in High-rel PCBs
Latent Short Circuit Failure in High-rel PCBs
This paper describes inspections performed on base materials, manufacturing processes and final PCBs.
Production Floor
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Selective Printing for BGA Components
Selective Printing for BGA Components
We use common BGA packages on many of our low-end products. To save cost, could we print paste only on the pads that have functional requirements?
Ask the Experts
Cheaper Electronics Manufacturing: Mexico or Israel?
After comparing total costs between a Mexican facility and an Israeli contract manufacturer, a company moved their production. What were the key factors?
Supply Chain
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Failure Mechanism in Embedded Capacitors
Paper covers high temperature life testing on embedded capacitors to precipitate failures as a result of defects in the composite dielectric.
Analysis Lab
Measuring Conformal Coating Adhesion
Measuring Conformal Coating Adhesion
Coating adhesion has been a difficult property to measure. This paper reviews a new tape peel test that can be applied to the PCB or component surface.
Materials Tech
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World's Fastest Thin-film Organic Transistors
World's Fastest Thin-film Organic Transistors
Researchers have developed the world's fastest thin-film organic transistors. This new technology could become the foundation for cheap, high-performance displays.
Technology Briefing
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Selective Soldering Technology Selection
Paper describes the evaluation process of selecting technology for selective soldering and which platform will best fit for the product application.
Production Floor
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Exposed Leads on Conformally Coated Boards
If you clip the leads of a component on a PCB that has been conformally coated, is it necessary to re-coat these exposed leads?
Ask the Experts
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The Static Charge Overload
The Static Charge Overload
A plastic molding plant had been running for less than a year. Suddenly parts began testing positive for an electrical charge. What caused it?
Mysteries of Science
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