Circuit Board Design & Cleaning Evolves to Support Down-Hole Logging Technologies
The author explains the advances in oil and gas exploration that have been derived from using “smart” down-hole drilling and data collection tools (“logging”). This article examines the evolution of the ever-smarter electronics used on down-hole tools and reviews the impact of the critical cleaning chemistries that are crucial to the success of these drilling technologies.
Improved Benchtop Cleaning of PCBs Saves Money, Boosts PCB Reliability
Here is the simple truth: any hand-soldered area on a circuit board must be cleaned to ensure reliable performance. Even no-clean fluxes. Fluxes work because they contain halites (also called activators). These lower the surface tension of the melted solder to improve the wetting of the surfaces. However, activators are salts and salts attack metals, … Continued
Safer Cleaning Choices Replace nPB in Aerosol Sprays
Many companies use aerosol degreasers containing a liquid called “normal propyl bromide” (nPB). Normal propyl bromide is an organic industrial solvent used in a wide variety of applications such as fire retardants, water purification, pesticides and drugs. In general, this is a great product: nonflammable, fast-drying, highly aggressive, cleans great and is very affordable. But … Continued
Better Quality Stencil Rolls Save Money, Boosts Through-put
Many customers think of stencil rolls are commodities. They want the cheapest stencil roll they can get because they think there is no difference between the brands. However, there IS a difference in rolls, and cheap rolls can turn out to be very expensive. Stencil printing is far more complex than many people think. There … Continued
Cleaning Wipes — The Advantages and Disadvantages of Different Types
In this paper, MicroCare VP Mike Jones discusses the wipe range of products available for simply wiping surfaces. The paper hits on three primary classes of products — flat wipes, swabs, and presaturated wipes — and also delves into the materials of construction. Although the paper is brief, it also suggests the applications for which … Continued
Are All Cleaning Wipes Created Equal?
Technicians cannot do their jobs without the right tools and bringing the right wipes to the job is vitally important. General categories The most important characteristic in a wipe is the absorbency of the proposed wipe for the contamination. Absorption usually is expressed in milliliters of water (or alcohol) absorbed by a specific weight of … Continued
Why Companies Clean “No Clean” Fluxes and Pastes
Why would anybody spend time and money cleaning a product described as a “no-clean”? Well, it happens all the time. Cleaning delicate circuitry is easy with MicroCare cleaning fluids, even when no-clean fluxes and pastes are used. An unofficial estimate from the sales team at MicroCare suggests that about 50% of our customers stems from … Continued
Cleaning Printed Circuit Boards Infographic
This infographic outlines some of the hazards and costs of dirty circuit boards, some of the most common contaminants and how to clean them using the four-step wet, scrub, rinse and dry process.
Better Process Controls Enhance Reliability in Electronics
Russell Claybrook, one of the cleaning experts from MicroCare Corp., addressed a very specific issue involving PCB reliability at the Texas Cleaning and Reliability Workshops. In particular, Mr. Claybrook focused on the need for process control in benchtop cleaning and automated cleaning of fluxes on PCBs. Claybrook stated that process control remains a major deficiency … Continued
PCB Repair Depot Reduces Costs With New Cleaning Tools, Better Chemistries
Benchtop cleaning of PCBs is a tough challenge for process engineers. Dip-and-brush cleaning is an inexpensive but slow method that often leaves residues to migrate across circuits. Traditional high-pressure aerosols are convenient but can be expensive, environmentally wasteful and people don’t like breathing all those fumes. MicroCare offers a better way to clean circuit boards. There … Continued