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Pacific Grove, CA, United States

Kanegsberg E.,BFK Solutions LLC
IPC APEX EXPO 2014 | Year: 2014

On January 1, 2015, nine months from APEX 2014, the production and use restrictions on HCFC-225 will be in effect throughout the United States. This phase out is encompassing in scope. This phase out will have significant technical, performance, and economic implications for the electronics industry. The regulatory situation remains fluid. A number of alternative solvents have been or are in the process of being developed. We discuss the options for assemblers and component manufacturers. Source

Kanegsberg B.,BFK Solutions LLC
Galvanotechnik | Year: 2010

Various regulatory provisions have been made and are being revised targeted towards employee safety in a chemical industrial working environment. In the US, the Occupational Health and Safety Administration (OSHA) sets legally-enforceable worker exposure limits for airborne chemicals. In California, the Division of Occupational Safety and Health, also known as Cal/OSHA, is setting worker exposure limits for many chemicals, and the trend tends to be toward lower and lower limits. The Health Expert Advisory Committee (HEAC) deliberates and then recommends either a single worker exposure limit or a range of exposure limits. Representatives from OEHHA have presented reports and analysis pertaining to extrapolation to fit the worker population and complex toxicological studies in this direction. Industry experts at the HEAC and FAC assert that the chemical need to be provided with a sufficiently high permissible exposure limit. Source

Kanegsberg B.,BFK Solutions LLC
SMT Surface Mount Technology Magazine | Year: 2014

Achieving high reliability cleaning may involve expanding the types of cleaning agents and cleaning systems under consideration. Electronics assemblers have generally been concerned with ionic contamination, with conductivity issues. Conductive residue results in immediate performance and reliability issues. Fourier transform infrared spectroscopy (FTIR) can be used as a monitoring method to provide a profile of organic contamination. Some groups use high-performance liquid chromatography (HPLC) to separate organic compounds. To obtain clean components, manufacturers have to select reliable suppliers and partner with them. They must focus on flux as a contaminant; their suppliers may use an assortment of process fluids, including lubricants. Metalworking fluids are complex blends of organic and inorganic compounds. In cleaning high-reliability assemblies, it is often effective to move beyond the jargon of what batch and in-line mean. Partnering is one secret to electronics assembly of high-reliability products. Source

Kanegsberg B.,BFK Solutions LLC
Metal Finishing | Year: 2011

A well-defined, consistent cleaning process can greatly assist one's customer. An effective cleaning process means one that removes the soils of interest, does not damage the product, leaves the surface in the appropriate condition, and minimizes leachable residue. People used to equate critical cleaning or precision cleaning with processes conducted by whitegarbed individuals working in a cleanroom. Cleaning process consistency is a must. Consistency involves avoiding unanticipated changes. This means selecting an optimal cleaning agent, quality cleaning equipment, and achieving a rugged process. The bottom line is that because metalworking fluids are being formulated with less volatile, higher boiling chemicals, there is the potential for more residue to stick to the surface. One may be working with a manufacturer that is developing a new medical device. The way one designs one's product and the way one supplies one's product can impact the critical cleaning during final assembly and can impact product quality. If one's customer has not spoken with one, one may find it useful to begin the dialog. Source

Kanegsberg B.,BFK Solutions LLC | Kanegsberg E.,BFK Solutions LLC
Galvanotechnik | Year: 2011

Several factors that need to be considered by manufacturers when selecting cleaning agents are presented. Water is an excellent for removing inorganic compounds such as salts). Most organic solvents tend to be better solvents for oils and greases. The Kauri Butanol (KB) number and the Hansen solubility parameters are two popular approaches to solvency. The KB number provides a single dimension indicating relative solvency in terms of shades of grey. Understanding Hansen Parameters can also be helpful if the soils change or if there is product damage associated with using a given cleaning process with new materials of construction. The physical properties of the cleaning also influence the optimal choice. The density, surface tension, and viscosity all influence the wettability, the extent to which the solvent can penetrate densely-spaced components or ornate parts. The boiling point of the cleaning agent must also be considered. Solvency parameters and wettability are generally calculated at ambient temperature. Source

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