Technical Library | 2019-06-07 14:49:54.0
ACI Technologies was contacted in regards to poor solder joint reliability. The customer submitted an assembly that was exhibiting intermittent opens at multiple locations on a ball grid array (BGA) component. The assembly’s functionality did not survive international shipping, essentially shock and vibration failures, immediately making the quality of the solder joints suspect. The customer was asked about the contract manufacturer and the reflow oven profile as well as the solder paste and surface finish used. The ACI engineering staff evaluated the contract manufacturer’s technique and determined that they were competent in the methods they used for placing thermocouples in the proper locations and developing the reflow oven profile. The surface finish was unusual, but not unheard of, in that it was hard gold over hard nickel, rather than electroless nickel immersion gold (ENIG). The customer was able to supply boundary scan testing data which showed a diagonal row of troublesome BGA pins.
New Equipment | Education/Training
This course is designed for students that require the hands-on skill and knowledge to reliably remove and install many types of the most complex BGA components. Students are taught methods for safe and reliable BGA component rework using a top of the
SMT Automatic Optical Inspection Machine ZMV-Z5P Features ▶Multi-algorithms and techniques. ▶Simultaneous inspection for multi-boards and inspection shift of 2 sides ofboard (components top and bottom) improves the inspection efficiency. ▶Smart came
· What is the difference between SMT vacuum reflow soldering machine and ordinary reflow soldering machine? · What problems can be solved by smt vacuum reflow soldering machine? · What is the basic principle of vacuum reflow machine? · Ho
SMT Lead Free Wave Soldering Machine XMW-350 Wave soldering advantages: ▶Comprehensive: economical and power-saving type is suitable for various lead-free and lead-free processes. Intelligent: intelligent control software, memory process parameters
Technical Library | 2019-05-24 09:22:59.0
There is a smaller process window and a much narrower margin of error when creating and using lead-free reflow profiles for surface mount parts on printed circuit boards (PCBs). Solder balls, dewetting, tombstones, voids, and head-on-pillow problems will occur much more frequently because lead-free alloys behave differently than eutectic pastes. Problems are compounded due to the extra heat necessary for some lead-free pastes to reach their melting points.
New Equipment | Rework & Repair Services
On the cutting edge of technology, we offer a full line of high tech services to assist contract manufacturer's and product research and developers. Specializing in quick turn around times to help get your product to market on time. Training Serv
New Equipment | Rework & Repair Equipment
BGA Rework Stations from the BGA Experts with over 25 years rework process experience and customer support! Easy placement and Soldering of BGAs, CGA's, CSPs, QFPs, LGA's and Other SMD's using this BGA Rework Station with color optical system that h
SMTA International Electronics Exhibition Tuesday, September 29: 9am-5pm Wednesday, September 30: 9am-4pm Donald Stephens Convention Center Rosemont, IL See More Equipment & Technology Than Ever Before! Many of the 160 exhibiting companies will bri
SMT Lead Free Wave Soldering Machine XMW-450 Feature ▶Comprehensive: economical and power-saving type is suitable for various lead-free and lead-free processes Intelligent: intelligent control software, memory process parameters, automatic heating
