Technical Library: 10.16 (Page 1 of 2)

Advanced Packaging Technology

Technical Library | 2019-10-16 10:20:25.0

A major goal of the development of advanced packaging technology is to reduce the size, weight, and power consumption of electronics components using state-of-the-art commercial technologies. One of the novel concepts involves the use of all three spatial dimensions when designing and producing new systems. In the past, electronic structures tended to be two dimensional in nature. Generally speaking, individually packaged integrated circuit (IC) dies were interconnected on printed circuit boards. Techniques such as die and package stacking naturally contribute to a reduction of the spatial footprint of any given electronic system design.

ACI Technologies, Inc.

Improving Density in Microwave Multilayer Printed Circuit Boards for Space Applications

Technical Library | 2013-11-27 16:54:01.0

The need in complexity for microwave space products such as active BFNs (Beam Forming Networks) is increasing, with a significantly growing number of amplitude / phase control points (number of beams * numbers of radiating elements). As a consequence, the RF component’s package topology is evolving (larger number of I/Os, interconnections densification ...) which directly affect the routing and architecture of the multilayer boards they are mounted on. It then becomes necessary to improve the density of these boards (...) This paper will present the work performed to achieve LCP-based high density multilayer structures, describing the different electrical and technological breadboards manufactured and tested and presenting the results obtained.


Quick Guide to Daisy Chain

Technical Library | 2000-11-13 20:28:58.0

Free 16 page booklet shows 200 standard SMD Daisy Chain configurations including BGA, QFP, TQFP, TSOP, SOIC, SSOP, Flat Pack, CERQUAD and more.

TopLine Dummy Components

Wave Solder Parameter Chart

Technical Library | 2006-05-13 13:07:53.0

This Excel Spreadsheet calculates the Wave Solder Contact Time automatically with given main Solder Wave width and Conveyor Speed. There is one chart where conveyor speed is expressed in meters/min and in another where it is expressed in feet/minute.

Jabil Circuit, Inc.

Pushing the barriers of wafer level device integration: High-speed assembly, the case for MicroTape.

Technical Library | 2009-01-21 23:01:49.0

Over the last 10 years, the adoption of wafer-level packaging (WLP) has expanded to a wide range of semiconductor devices applied in a crosssection of industries from Automotive to Mobile Phone, Sensors to Medical Technology.

Siemens Process Industries and Drives

Making the Move from Machine Monitoring to SMART Manufacturing and the Implications on Profiling Systems

Technical Library | 2016-09-12 10:16:04.0

It is hard to open an Industry newsletter or visit an equipment manufacturer’s website without coming across a mention of the Internet of Things (IoT), Industry 4.0, SMART Manufacturing or ‘big data’. The accessibility to obtain data will only increase and this information and its real-time processing will become one of the most important resources for companies in the future. Production machinery will no longer simply processes the product, but the product will communicate with the machinery to tell it exactly what to do. Industry 4.0 has the vision to connects embedded system technologies and SMART production processes to drastically transform industry and production giving way to the SMART factory development. Future development in oven technology will allow machines to be controlled more intelligently and remotely resulting in the lowest cost model for manufacturing flow.


High Reliability and High Temperature Application Solution - Solder Joint Encapsulant Paste

Technical Library | 2017-10-16 15:03:32.0

The miniaturization and advancement of electronic devices have been the driving force of design, research and development, and manufacturing in the electronic industry. However, there are some issues occurred associated with the miniaturization, for examples, warpage and reliability issues. In order to resolve these issues, a lot of research and development have been conducted in the industry and university with the target of moderate melting temperature solder alloys such as m.p. 280°C. These moderate temperature alloys have not resolve these issues yet due to the various limitations. YINCAE has been working on research and development of the materials with lower temperature soldering for higher temperature application. To meet this demand, YINCAE has developed solder joint encapsulant paste to enhance solder joint strength resulting in improving drop and thermal cycling performance to eliminate underfilling, edge bonding or corner bonding process in the board level assembly process. This solder joint encapsulant paste can be used in typical lead-free profile and after reflow the application temperature can be up to over 300C, therefore it also eliminates red glue for double side reflow process. In this paper, we will discuss the reliability such as strength of solder joints, drop test performance and thermal cycling performance using this solder joint encapsulant paste in detail.

YINCAE Advanced Materials, LLC.

Redundancy and High-Volume Manufacturing Methods

Technical Library | 1999-05-07 10:16:31.0

This paper will describe practical aspects of a redundancy implementation on a high-volume cache memory product. Topics covered include various aspects of redundancy from a design and product engineering perspective; and present test development methods for future product implementations.

Intel Corporation

Reliability Screening of Lower Melting Point Pb-Free Alloys Containing Bi

Technical Library | 2015-07-01 16:51:43.0

Aerospace and military companies continue to exercise RoHS exemptions and to intensively research the long term attachment reliability of RoHS compliant solders. Their products require higher vibration, drop/shock performance, and combined-environment reliability than the conventional SAC305 alloy provides. The NASA-DoD Lead-Free Electronics Project confirmed that pad cratering is one of the dominant failure modes that occur in various board level reliability tests, especially under dynamic loading. One possible route to improvement of the mechanical and thermo-mechanical properties of solder joints is the use of Pb-free solders with lower process temperatures. Lower temperatures help reduce the possibility of damaging the boards and components, and also may allow for the use of lower Tg board materials which are less prone to pad cratering defects. There are several Sn-Ag-Bi and Sn-Ag-Cu-Bi alloys which melt about 10°C lower than SAC305. The bismuth in these solder compositions not only reduces the melting temperature, but also improves thermo-mechanical behavior. An additional benefit of using Bi-containing solder alloys is the possibility to reduce the propensity to whisker growth

Honeywell International

Material Effects of Laser Energy When Processing Circuit Board Substrates during Depaneling

Technical Library | 2017-04-27 17:10:16.0

Using modern laser systems for the depanelization of circuit boards can create some challenges for the production engineer when it is compared to traditional mechanical singulation methods. Understanding the effects of the laser energy to the substrate material properly is essential in order to take advantage of the technology without creating unintended side effects. This paper presents an in-depth analysis of the various laser system operating parameters that were performed to determine the resulting substrate material temperature changes. A theoretical model was developed and compared to actual measurements. The investigation includes how the temperature increase resulting from laser energy during depaneling affects the properties of the PCB substrate, which varies from no measurable change to a lowering of the surface resistance of the cut wall depending on the cutting parameters.

LPKF Laser & Electronics

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