OEM Machining Oil Cylinder Head-R with Precision Technology 1. ISO9001-2008 certificate. 2. Has advanced process and testing equipment. We can test by ourself. 3. Price: Competitive price, Precision made. Experience & Reasonable QC that you can repl
OEM Machining Oil Cylinder Head-R with Precision Technology 1. ISO9001-2008 certificate. 2. Has advanced process and testing equipment. We can test by ourself. 3. Price: Competitive price, Precision made. Experience & Reasonable QC that you can repl
Industry News | 2011-11-20 13:36:13.0
GPD Global has been awarded two Global Technology Awards in the categories of Adhesives/Coatings/Encapsulants and Dispensing Equipment for its PCD Dispensing on the MAX Series Platform
Industry News | 2018-10-18 09:29:21.0
Wave soldering welding interview direct contact with high temperature liquid in the production
Technical Library | 2018-07-11 22:46:13.0
For a demanding automotive electronics assembly, a highly thermal fatigue resistant solder alloy is required, which makes the lead-free Sn-Ag-Cu type solder alloy unusable. Sn-Ag-Bi-In solder alloy is considered as a high reliability solder alloy due to significant improvement in thermal fatigue resistance as compared to a standard Sn-Ag-Cu alloy. The alloy has not only good thermal fatigue properties but it also has superior ductility and tensile strength by appropriate addition of In; however, initial results indicated a sub-par performance in joint reliability when it is soldered on a printed circuit board (PCB) with Electroless Nickel Immersion Gold (ENIG) surface finish. Numerous experiments were performed to find out appropriate alloying element which would help improve the performance on ENIG PCBs. Sn-Ag-Bi-In solder alloys with and without Cu additions were prepared and then tests were carried out to see the performance in a thermal fatigue test and a drop resistance test.to investigate the impact of Cu addition towards the improvement of joint reliability on ENIG finish PCB. Also, the mechanism of such improvement is documented.
Two stations, one for soldring and the another is for goods loading at the same time. So it doubled the production efficiency
SMTnet Express April 25, 2013, Subscribers: 26322, Members: Companies: 13358, Users: 34615 Determination of Copper Foil Surface Roughness from Micro-section Photographs by: Scott Hinaga, Soumya De, Aleksandr Y. Gafarov, Marina Y. Koledintseva
Surface Mount Technology Association (SMTA) | https://www.smta.org/icsr/speaker_forms/Paper-Format-Requirements.doc
. More thermal energy needed to achieve consistent solder joints can cause heat damage. Ensure surface finish has good solderability and PCB can handle added heat stress. All boards require 2 side SMT + wave solder. Solderability of PTH degrades with 2nd
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_how-to-make-hybrid-qfn-with-multiple-thermal-pads_topic1947.xml
PCB Libraries Forum : How To Make Hybrid QFN with Multiple Thermal Pads? PCB Libraries Forum : How To Make Hybrid QFN with Multiple Thermal Pads
