Electronics Assembly Knowledge, Vision & Wisdom HOME PROGRAMS DIRECTORY SUBSCRIBE Ask the Experts << Page 1 of 34 >> Arranged via association with Circuitnet.. See the Expert Panel | Submit A Questions | Join the Panel Programs are sorted by published date, most recent first. Directory Search         Program Search         How Many Zones Needed for Lead-free Profile? How many zones are required to run a lead-free profile? Does the number of zones dictate capability or do they only matter for throughput? Ask the Experts Solder Mask Ghosting Some here are convinced that we have solder mask ghosting on PCBs because our global suppliers are not curing the mask sufficiently. Ask the Experts Insufficient Plated Hole Fill with Electrolytic Capacitors We are having problems achieving the minimum hole of 75% on electrolytic capacitors using wave soldering. What do you suggest. Ask the Experts Conformal Coating Over No-Clean Flux We need to apply conformal coating to one assembly. Can we apply coating directly over circuit board assembled using no-clean flux? Ask the Experts Alternatives to Conformal Coating What are conformal coating alternatives to insulate solder joints and exposed conductors from condensing moisture? Ask the Experts Solder Paste Transfer Greater Than 100% I understand the concept of transfer efficiency, is it possible to produce transfer efficiency greater than 100% of the theoretical volume? Ask the Experts Proper DI Water Resistivity for PCB Cleaning? What the proper resistivity reading for DI water when cleaning electronic assemblies and why? Is there a specification? Ask the Experts Profiling for Double Sided BGA We are about to produce double sided BGA boards. What advice would you give for profiling? What advice would you give for reworking? Ask the Experts Urethane Conformal Coating Problem We use urethane conformal coating and have difficulty with the coating adhering to the board despite washing and efforts. Ask the Experts Legend Marking Discoloration During a rework process the legend marking surrounding the rework site is darkening. Can you recommend a process to prevent this from happening? Ask the Experts Ask the Experts << Page 1 of 34 >> About | Advertising | Contact | Directory | Directory Search | Directory Submit | Privacy | Programs | Program Search | Sponsorship | Subscribe | Terms Circuit Insight 6 Liberty Square #2040, Boston MA 02109 USA Jeff Ferry, Publisher | Ken Cavallaro, Editor/Business Manager Copyright © Circuitnet LLC. All rights reserved. A Circuitnet Media Publication