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Record W4416880818 · doi:10.37665/smiuufr82044

Fluorinated Soldering Technology

2000· article· W4416880818 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueSMTA International · 2000
Typearticle
Language
FieldEngineering
TopicElectronic Packaging and Soldering Technologies
Canadian institutionsBell (Canada)
Fundersnot available
KeywordsSolderingWave solderingWettingPrinted circuit boardDip solderingSolder pasteFlux (metallurgy)

Abstract

fetched live from OpenAlex

ABSTRACT A gas treatment process has been developed to replace the use of all flux used for soldering printed circuit board assemblies. The main reason for using flux is to dissolve the high melting point oxide that covers the solder surface. This layer prohibits solder flow and wetting of the component leads or circuit board contacts. Chemically, the flux process is a reduction step. The FST (Fluorinated Soldering Technology) approach is a radical departure. It is a pure gas pretreatment that quickly permeates the smallest crevices and converts a part of the oxide to an oxyfluoride - this is actually an oxidation and not a reduction. The conversion film is stable for some months in dry air or nitrogen, allowing for later solder joining, if desired, without flux, using existing equipment, wave solder or oven reflow. There is no residue left from this process. Because the chemistry is very specific only a very small amount of gas is needed to perform the process.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.910
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0050.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.006
GPT teacher head0.220
Teacher spread0.214 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it