Industry News | 2018-10-20 11:13:11.0
IPC – Association Connecting Electronics Industries® presented Committee Leadership, Special Recognition and Distinguished Committee Service Awards on October 15 at IPC's Fall Standards Development Committee Meetings in Rosemont, Ill. The awards were presented to individuals who made significant contributions to IPC and the industry by lending their time and expertise in the development of electronics manufacturing standards.
Industry News | 2013-02-20 18:54:10.0
IPC — Association Connecting Electronics Industries® presented Committee Leadership, Distinguished Committee Service and Special Recognition Awards at IPC APEX EXPO® at the San Diego Convention Center.
Industry News | 2019-11-05 22:10:56.0
Many customers and electronic designers were asking questions about the aluminum-based board, today our chief technical official Luca Zhang shared the knowledge and experience to you.
Technical Library | 2022-02-21 19:49:16.0
The ability to undertake non-destructive testing on semiconductor devices, during both their manufacture and their subsequent use in printed circuit boards (PCBs), has become ever more important for checking product quality without compromising productivity. The use of x-ray inspection not only provides a potentially non-destructive test but also allows investigation within optically hidden areas, such as the wire bonding within packages and the quality of post solder reflow of area array devices (e.g. BGAs, CSPs and flip chips).
Technical Library | 2020-08-27 01:22:45.0
Initially adopted internal specifications for acceptance of printed circuit boards (PCBs) used for wire bonding was that there were no nodules or scratches allowed on the wirebond pads when inspected under 20X magnification. The nodules and scratches were not defined by measurable dimensions and were considered to be unacceptable if there was any sign of a visual blemish on wire-bondable features. Analysis of the yield at a PCB manufacturer monitored monthly for over two years indicated that the target yield could not be achieved, and the main reasons for yield loss were due to nodules and scratches on the wirebonding pads. The PCB manufacturer attempted to eliminate nodules and scratches. First, a light-scrubbing step was added after electroless copper plating to remove any co-deposited fine particles that acted as a seed for nodules at the time of copper plating. Then, the electrolytic copper plating tank was emptied, fully cleaned, and filtered to eliminate the possibility of co-deposited particles in the electroplating process. Both actions greatly reduced the density of the nodules but did not fully eliminate them. Even though there was only one nodule on any wire-bonding pad, the board was still considered a reject. To reduce scratches on wirebonding pads, the PCB manufacturer utilized foam trays after routing the boards so that they did not make direct contact with other boards. This action significantly reduced the scratches on wire-bonding pads, even though some isolated scratches still appeared from time to time, which caused the boards to be rejected. Even with these significant improvements, the target yield remained unachievable. Another approach was then taken to consider if wire bonding could be successfully performed over nodules and scratches and if there was a dimensional threshold where wire bonding could be successful. A gold ball bonding process called either stand-off-stitch bonding (SSB) or ball-stitch-on-ball bonding (BSOB) was used to determine the effects of nodules and scratches on wire bonds. The dimension of nodules, including height, and the size of scratches, including width, were measured before wire bonding. Wire bonding was then performed directly on various sizes of nodules and scratches on the bonding pad, and the evaluation of wire bonds was conducted using wire pull tests before and after reliability testing. Based on the results of the wire-bonding evaluation, the internal specification for nodules and scratches for wirebondable PCBs was modified to allow nodules and scratches with a certain height and a width limitation compared to initially adopted internal specifications of no nodules and no scratches. Such an approach resulted in improved yield at the PCB manufacturer.
Industry News | 2019-05-21 07:12:15.0
ARIES Embedded Complements Industrial MX10-SoM by Entry-Level System-on-Module for Expanded User Community
Industry News | 2003-07-01 09:13:44.0
Unveiled a new version of the FPGA Advantage� integrated design environment
Industry News | 2023-09-06 09:27:13.0
Easy Access for US Customers to System-on-Modules with Microchip's PolarFire® SoC Architecture
Industry News | 2011-04-20 16:31:45.0
Finetech, a world leading equipment manufacturer of advanced rework solutions, will present two rework systems for professional rework applications in booth 2D10-A at NEPCON China 2011.
Industry News | 2009-12-07 20:18:12.0
We are pleased to announce the acquisition by Finetech GmbH & Co. KG, Berlin of MARTIN GmbH, Wessling near Munich. Finetech CEO, Gunter Kuerbis explains that the Martin products complement perfectly the range of systems successfully sold around the world under the flagship FINEPLACER® name. Additionally, MARTIN CEO, Bernhard Martin sees that the addition of dispenser technology, a core capability of his company, will provide a broader product offering range to Finetech’s already significant position in the Rework and Micro-assembly arena.