Bicheng provides impedance controlled PCB's for R&D, high-tech, IT research companies and organizations, large or small. Technical parameters *Controlled dielectric *Controlled impedance *Design coupons *Test coupons *Po
New Equipment | Wave Soldering
The only portable wave soldering machine optimizers with statistical process control (SPC) The wave soldering process is one of the most challenging procedures to set up. The ECD WaveRIDER® NL 2 greatly simplifies wave solder set up and ensures perf
Electronics Forum | Mon Feb 23 14:44:08 EST 2009 | sunny
Are boards produced using Vapor phase ovens dirtier than N2 Reflow oven. Are there any studies/papers someone can point to? if not what are the methods to verify this? is IPC specified SIR test using 24B SIR test coupons? please advise. thanks in adv
Electronics Forum | Thu Sep 23 15:49:45 EDT 2021 | stephendo
See if there are any board shops near you. One might provide scraps in exchange for name dropping.
Industry News | 2016-02-23 20:21:43.0
IPC – Association Connecting Electronics Industries® announces the release of the IPC-2221B Gerber Coupon Generator, a new annual subscription service for IPC members. The IPC-6012C-TC Test Coupon Addendum to the IPC-6012C, Qualification and Performance Specification for Rigid Printed Boards, allows a user or supplier to enter into an agreement to use the new IPC-2221B Appendix A test coupon designs for acceptance of production lots. Not doing so results in micro section evaluations based on outdated test designs going back to the late 1980s, which do little to properly assess modern technology needs.
Industry News | 2018-05-22 12:19:27.0
IPC – Association Connecting Electronics Industries® would like to announce the release of additional test coupons for the IPC-2221B Gerber Coupon Generator, an exclusive annual subscription service for IPC member companies. The IPC-2221B Gerber Coupon Generator subscription service is the only service providing new, industry approved test coupons addressing blind, buried, stacked and staggered via structures. The most commonly used coupons for product acceptance are “AB,” “AB/R” and “D” which were introduced in 2016.
Technical Library | 2013-09-19 17:25:32.0
The next generation of smart phones will demand very thin multi-layer boards to reduce the product thickness again. This paper shows three different manufacturing approaches, which can be used for very thin any-layer build-ups. The technological approaches are compared on reliability level – the any-layer copper filled micro-via technology which is to be considered as state of the art technology for high end phones and the ALIVH-C/G technology that is well established in Japan. A test vehicle design featuring test coupons for comprehensive reliability test series has been defined as target application for investigation...
Technical Library | 2016-09-22 17:52:59.0
Conformal Coatings are often used to increase the reliability of electronic assemblies operating in harsh or corrosive environments where the product would otherwise fail prematurely. Conformal coatings are often qualified to international standards, intended to enable users to better differentiate between suitable conformal coating chemistries, but always on a flat test coupon, which is not representative of real world use conditions. In order to better correlate international standards with real world-use conditions, three-dimensional Surface Insulation Resistance (SIR) test boards have been manufactured with dummy components representative of those commonly used on printed circuit assemblies...
The following video guides the user through a typical data collection process. These steps may vary depending on the process your company uses. Categories: WaveRIDER, WaveRIDER SPC (v5.2x)
SMTnet Express, May 9, 2019, Subscribers: 31,902, Companies: 10,760, Users: 26,083 Cold Ball Pull Test Efficiency for the PCB Pad Cratering Validation with the Ultra Low Loss Dielectric Material Credits: iNEMI (International Electronics
SMTnet Express, February 6, 2014, Subscribers: 26500, Members: Companies: 13567, Users: 35716 Understanding SIR by Chris Nash, Eric Bastow; Indium Corporation Many electronics manufacturers perform SIR testing to evaluate solder materials
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5027
Effects of Cl2, NO2, Rh and Temperature on Accelerated Silver and Copper Corrosion in Mixed Flowing Gas Test 中文 MEMBERS LOGIN Membership Become a Member
