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.
Industry News | 2015-04-20 09:01:45.0
Rogers 4003c ,4 layer PCB assembly
Industry News | 2017-07-19 21:09:38.0
STI Electronics is pleased to announce the acquisition of a new Fischerscope X-ray XDAL 237 energy dispersive X-ray fluorescence (EDXRF) system.
Industry News | 2004-02-04 16:52:03.0
Prepare for the 2006 European Deadline
Industry News | 2019-11-05 22:22:32.0
1. The definition of Sideplating Sideplating is actually the metalization of the board edge in PCB filed. Edge plating、Border plated、plated contour、side metal, these words can be used too to describe same function. 2. Sideplating Process Drilling - Milling plated Slots - Cleaning - Copper sink 3. Pictures to show the finished board’s sideplating
Industry News | 2008-06-06 19:09:39.0
NASHVILLE � June 4, 2008 � Kyzen Corporation, a world leading provider of environmentally responsible precision cleaning products for the electronics and high-technology manufacturing operations, announces that it will showcase METALNOX M6440 aqueous immersion cleaner and brightener in booth 633 at the 2008 Orthopaedic Manufacturing & Technology (Omtec) exposition and conference scheduled to take place June 18-19, 2008 at the Donald E. Stephens Convention Center in Rosemont, IL.
Industry News | 2018-11-27 14:03:14.0
Super PCB is pleased to announce that it offers a variety of quality PCB surface finishes. PCB surface finish is the coating between the PCB and components that provides a solderable surface for components and protects the exposed copper circuitry.
New Equipment | Assembly Services
TW-FPC--Flexible PCB 0187 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units p
New Equipment | Assembly Services
TW-Flex-Rigid PCB 0156 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units per
New Equipment | Assembly Services
TW-HDI PCB 0245 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units per Year o
