Flux Removal Method for Reflow Furnaces

SMTAI – 2020 – Described in this work, is a novel method of capture which separates flux from the recirculating furnace gas using an aqueous gas/liquid sequestration process. This system operates automatically and does not require production line shut-down for routine maintenance which consists of periodically emptying a small liquid waste container. This method is…

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Oven Adjustment Effects on a Solder Reflow Profile

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Circuits Assembly Magazine – Aug 2009 —- This paper investigates the effects of variations on belt speed, static pressures, and zone temperatures on peak temperature, time above liquidus (TAL) and thermal uniformity.

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Cost of ownership and overall equipment efficiency

cost of ownership article cover

Photovoltaics International – Nov 2009 — A paper by David Jimenez of Wright Williams & Kelly, Inc., uses a standarized cost of ownership analysis to compare in-line diffusion with batch processing.

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Wafer Level Packaging

waver level packaging cover

SECAP – 2005 — A collection of papers on wafer level packaging and flip chip bumping covering a range of topics including plating, UBM, photolithography, and lead-free processing. As a member of SECAP, BTU contributed a paper on Next Generation Wafer Bump Reflow Processing.

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SMT Magazine Step 7 Soldering

SMT Magazine – Aug 2004 — Part of SMT Magazine’s “step by step” series. The “Step 7” article covers soldering including a discussion on lead-free processing.

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Oven Selection and Lead-Free Solder

oven selection lead free solder cover

Global SMT & Packaging – Oct 2004 — A discussion on the oven requirements for lead free solder. This article discusses issues like oven length, thermal capacity, speed, zones, flux management, board support mechanisms, the use of nitrogen, and convection control.

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