Electronics Manufacturing Technical Articles
Papers and articles related to SMT, PCB & EMS industry.
- Technical Library
836 SMT / PCB Assembly Related Technical Articles
Feb 17, 2011 | Barry Olney
Copper ground pours are created by filling open unused areas with copper generally on the outer layers of the board then connecting the copper fill with stitching vias to ground. Usually, small isolated areas < 2.5.mm square are deleted automatically by t...
Publisher: In-Circuit Design Pty Ltd
Feb 10, 2011 | Jamal S. Izadian, Ph.D. - RFCONNEXT, Inc., Julian Ferry, Justin McAllister - Samtec, Inc.
In this paper, we discuss an electromagnetics based approach to transmission line design, and then explore a novel printed transmission line, Periodic Micro Transmission Line (PMTL™, Patents Pending), with improved signal integrity to 40 GHz....
Publisher: Samtec, Inc.
Feb 03, 2011 | DfR Solutions
First introduced in the year 2000, the 0201 package was sold in significant numbers in the electronics industry by 2003. According to some estimates, it currently accounts for approximately 20% of surface mounted component (SMC) demand worldwide1. This pu...
Publisher: DfR Solutions
DfR Solutions has world-renowned expertise in applying the science of Reliability Physics to electrical and electronics technologies, and is a leading provider of quality, reliability, and durability (QRD) research and consulting for the electronics industry.
College Park, Maryland, USA
Jan 27, 2011 | Dr. Andy Mackie
In this paper, we will talk about reflow in an enclosed oven, although many of these discussions may pertain to wave soldering and even vacuum soldering.....
Publisher: Indium Corporation
Jan 20, 2011 | Yasuyuki Shinbo
This article introduces the technical development that went in to realizing an 80-layer ultra-multilayer printed circuit board, which meets the market demand for a "semiconductor test board supporting memory increases"....
Publisher: OKI Printed Circuits Co., Ltd.
Jan 20, 2011 | Henry Ott Consultants
PCB stack-up is an important factor in determining the EMC performance of a product. A good stack-up can be very effective in reducing radiation from the loops on the PCB (differential-mode emission), as well as the cables attached to the board (common-mo...
Publisher: Henry Ott Consultants
Jan 13, 2011 | Terry Munson
The tin whisker failures investigated in this paper were found on functional RoHS-compliant hardware. The samples were not conformal coated. This paper will document the conditions associated with the whisker formation under the following conditions; tin ...
Publisher: Foresite Inc.
Evaluating The Accuracy Of a Nondestructive Thermocouple Attach Method For Area-Array Package Profiling
Jan 06, 2011 | Brian O' Leary, Tim Grove, Dr. S. Manian Ramkumar
The oven recipe, which consists of the reflow oven zone temperature settings and the speed of the conveyor, will determine a specific time‐temperature profile for a given PCB assembly. In order to achieve a good quality PCB assembly, the time‐temperature ...
Publisher: KIC Thermal
Dec 22, 2010 | Rabindra N. Das, Varaprasad Calmidi, Mark D. Poliks and Voya R. Markovich
This paper discusses polymer based nanogels, nanofluids and nanopastes for thermal interface material (TIM) applications. Nanopaste and nanogel formulated using controlled-sized particles to fill small bond lines is highlighted....
Publisher: i3 Electronics
A world leader in high-performance PCB fabrication & assembly, semiconductor packaging, systems integration & test, advanced laboratory services and contract R&D.
Endicott, New York, USA
Dec 16, 2010 | Jakob Dieterle
This report discusses the significance of heat management in the design of printed circuit boards (PCB). After an introduction into the basics of PCBs the crucial mechanisms of heat transfer are discussed with regard to significance and typical design par...
Publisher: Lund University, The Faculty of Engineering