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iNEMI HFR-Free PCB Materials Team Project: An Investigation to Identify Technology Limitations Involved in Transitioning to HFR-Free PCB Materials

In response to a growing concern within the Electronic Industry to the transition to Halogen-Free laminates (HFR-Free) within the Client Market space (Desktop and Notebook computers) iNEMI init .. read more

iNEMI HFR-Free Signal Integrity Project: An Investigation to Identify Degradation of Electrical Signals in HFR-Free PCB Materials

Recent environmental concerns over the safety of the halogenated flame retardants (HFR) used in commonplace FR4 printed circuit boards (PCB) have prompted market demand for HFR-free computer sy .. read more

Understanding when to use FR-4 laminates or High Frequency Laminates

Over the years a question that has been asked repeatedly of material suppliers is: “when do I need to use a high frequency laminate over the choice of a standard FR-4 substrate”? The answer has .. read more

Polyphenylene Ether Macromonomer. Viii. Low Z-Axis Cte,Low Df Epoxy Laminates

Properties of printed circuit board laminates are a function of the type and levels of its components. Endeavors to a balance various performance criteria involve balancing the types and amount .. read more

Impact of Moisture Content on Printed Circuit Board Laminate Thermal Properties

Moisture plays an important role in the integrity and reliability of printed circuit boards (PCBs). The presence of moisture in a PCB alters its thermo-mechanical properties,induces hygroscopic .. read more

Low Loss & Novel Halogen-Free Laminates for High Frequency Device Applications

In this paper,ITEQ demonstrates outstanding performance of new halogen-free and low loss laminates,IT-258GA,IT-168G,and IT-150D,for the coming halogen free generation,and higher frequency appli .. read more

Polyphenylene Ether Macromolecules. VI. Halogen Free Flame Retardant Epoxy Resins

An important criterion for dielectric materials used in the microelectronics industry is their flammability. Typically,flame retardant epoxy resins use bromine-containing flame-retardants. In t .. read more

Pb-Free Reflow,PCB Degradation,and the Influence of Moisture Absorption

Cracking and delamination defects in printed circuit boards (PCBs) during elevated thermal exposure have always been a concern for the electronics industry. However,with the increasing spread o .. read more

Water Vapor Uptake and Release in Printed Boards

Excessive moisture entrapped/absorbed within printed board laminates can expand during soldering operations,causing delamination or other damage. While moisture absorption data is available for .. read more

High Frequency Circuit Materials used in the PCB Industry

Specialty high frequency circuit materials have been used in the PCB industry for decades and for many different reasons. There are several attributes of these materials that are very unique wh .. read more

Pb-Free Reflow,PCB Degradation,and the Influence of Moisture Absorption

The cracking and delamination of printed circuit boards (PCB) during exposure to elevated thermal exposure,such as reflow and rework,have always been a concern for the electronics industry. How .. read more

Base Material Consideration for High Speed Printed Circuit boards

Over these years,EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trend,signal integrity performance gets more critical upon today’s h .. read more

Base Material Consideration for High Speed Printed Circuit Boards

Over the years,the EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trends,signal integrity performance gets more critical based upon .. read more

Base Material Consideration for High Speed Printed Circuit Boards

Over the years,the EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trends,signal integrity performance gets more critical based upon .. read more

Novel Low Dk/Df Materials for High Speed PWB

The mobile communication devices such as cell phones require high speed transmission of large volume data as well as reduction in size and weight. When signal is transmitted in high speed and f .. read more

More Robust Base Materials for Electronic Assemblies

The proposed revision of IPC-4101 - Specification for Base Materials for Rigid and Multilayer Printed Boards contains new slash sheets describing FR-4 base materials compatible with lead free a .. read more

Lead Free Assembly: Identifying Compatible Base Materials for Your Application

Whether based on good science or not,the elimination of lead from electronic equipment as a result of the European RoHS legislation is a reality. Even those market segments with exemptions mean .. read more

A New Non-Halogen Flame-Retardant System for Printed Wiring Boards

There is continued interest in utilizing alternatives to bromine-based flame retardants for printed wiring boards. As a result,a wide variety of phosphorus and non-phosphorus systems have been .. read more

Development of Epoxy Mold Compound for Lead Free Soldering of Fine Pitch and Stacked Die BGA Packages

A new,green epoxy mold compound has been developed to encapsulate fine pitch PBGA and 3D-stacked die CSP packages. When evaluated on these packages,the compound provided very good wire sweep pe .. read more

Effect of No-clean Solder Paste and Flux on Reliability of High Frequency Circuits

The use of no-clean solder paste and flux has become widely accepted as a cost saver in the SMT assembly process. The presence of solder flux residues,solder mask,underfill or any SMT material .. read more

iNEMI HFR-Free PCB Materials Team Project: An Investigation to Identify Technology Limitations Involved in Transitioning to HFR-Free PCB Materials

In response to a growing concern within the Electronic Industry to the transition to Halogen-Free laminates (HFR-Free) within the Client Market space (Desktop and Notebook computers) iNEMI init .. read more

iNEMI HFR-Free Signal Integrity Project: An Investigation to Identify Degradation of Electrical Signals in HFR-Free PCB Materials

Recent environmental concerns over the safety of the halogenated flame retardants (HFR) used in commonplace FR4 printed circuit boards (PCB) have prompted market demand for HFR-free computer sy .. read more

Understanding when to use FR-4 laminates or High Frequency Laminates

Over the years a question that has been asked repeatedly of material suppliers is: “when do I need to use a high frequency laminate over the choice of a standard FR-4 substrate”? The answer has .. read more

Polyphenylene Ether Macromonomer. Viii. Low Z-Axis Cte,Low Df Epoxy Laminates

Properties of printed circuit board laminates are a function of the type and levels of its components. Endeavors to a balance various performance criteria involve balancing the types and amount .. read more

Impact of Moisture Content on Printed Circuit Board Laminate Thermal Properties

Moisture plays an important role in the integrity and reliability of printed circuit boards (PCBs). The presence of moisture in a PCB alters its thermo-mechanical properties,induces hygroscopic .. read more

Low Loss & Novel Halogen-Free Laminates for High Frequency Device Applications

In this paper,ITEQ demonstrates outstanding performance of new halogen-free and low loss laminates,IT-258GA,IT-168G,and IT-150D,for the coming halogen free generation,and higher frequency appli .. read more

Polyphenylene Ether Macromolecules. VI. Halogen Free Flame Retardant Epoxy Resins

An important criterion for dielectric materials used in the microelectronics industry is their flammability. Typically,flame retardant epoxy resins use bromine-containing flame-retardants. In t .. read more

Pb-Free Reflow,PCB Degradation,and the Influence of Moisture Absorption

Cracking and delamination defects in printed circuit boards (PCBs) during elevated thermal exposure have always been a concern for the electronics industry. However,with the increasing spread o .. read more

Water Vapor Uptake and Release in Printed Boards

Excessive moisture entrapped/absorbed within printed board laminates can expand during soldering operations,causing delamination or other damage. While moisture absorption data is available for .. read more

High Frequency Circuit Materials used in the PCB Industry

Specialty high frequency circuit materials have been used in the PCB industry for decades and for many different reasons. There are several attributes of these materials that are very unique wh .. read more

Pb-Free Reflow,PCB Degradation,and the Influence of Moisture Absorption

The cracking and delamination of printed circuit boards (PCB) during exposure to elevated thermal exposure,such as reflow and rework,have always been a concern for the electronics industry. How .. read more

Base Material Consideration for High Speed Printed Circuit boards

Over these years,EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trend,signal integrity performance gets more critical upon today’s h .. read more

Base Material Consideration for High Speed Printed Circuit Boards

Over the years,the EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trends,signal integrity performance gets more critical based upon .. read more

Base Material Consideration for High Speed Printed Circuit Boards

Over the years,the EU RoHS restriction and lead-free capability is the hottest environmental protection subject. In technology trends,signal integrity performance gets more critical based upon .. read more

Novel Low Dk/Df Materials for High Speed PWB

The mobile communication devices such as cell phones require high speed transmission of large volume data as well as reduction in size and weight. When signal is transmitted in high speed and f .. read more

More Robust Base Materials for Electronic Assemblies

The proposed revision of IPC-4101 - Specification for Base Materials for Rigid and Multilayer Printed Boards contains new slash sheets describing FR-4 base materials compatible with lead free a .. read more

Lead Free Assembly: Identifying Compatible Base Materials for Your Application

Whether based on good science or not,the elimination of lead from electronic equipment as a result of the European RoHS legislation is a reality. Even those market segments with exemptions mean .. read more

A New Non-Halogen Flame-Retardant System for Printed Wiring Boards

There is continued interest in utilizing alternatives to bromine-based flame retardants for printed wiring boards. As a result,a wide variety of phosphorus and non-phosphorus systems have been .. read more

Development of Epoxy Mold Compound for Lead Free Soldering of Fine Pitch and Stacked Die BGA Packages

A new,green epoxy mold compound has been developed to encapsulate fine pitch PBGA and 3D-stacked die CSP packages. When evaluated on these packages,the compound provided very good wire sweep pe .. read more

Effect of No-clean Solder Paste and Flux on Reliability of High Frequency Circuits

The use of no-clean solder paste and flux has become widely accepted as a cost saver in the SMT assembly process. The presence of solder flux residues,solder mask,underfill or any SMT material .. read more