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Record W4416877038 · doi:10.37665/smesqjg60363

Surface Mount Placement Equipment Characterization

2001· article· W4416877038 on OpenAlex
Damian Hujic

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 · 2001
Typearticle
Language
FieldEngineering
TopicElectronic Packaging and Soldering Technologies
Canadian institutionsHain Celestial (Canada)
Fundersnot available
KeywordsSurface-mount technologyElectronicsKey (lock)Quality assuranceProcess (computing)Software deploymentScale (ratio)Component (thermodynamics)SMT placement equipment

Abstract

fetched live from OpenAlex

ABSTRACT With today's trend in the electronics industry towards smaller and smaller components (0402 and 0201 discretes) and finer and finer lead pitches (μBGAs, Chip Scale Packages, etc.), having a tightly controlled manufacturing process is more important than ever. A key element of this is the ability to characterize the accuracy and repeatability of the Surface Mount placement equipment used in manufacturing and to be able to correct equipment that is performing poorly This paper discusses the development and deployment of a placement equipment characterization system and how it is used within an electronics manufacturing environment as a quality assurance tool. The author of this paper participated in the development of IPC-9850 Surface Mount Equipment Performance Characterization specification over the past two years. The system described within this paper has many common elements with the IPC specification and thus can serve as an example to engineers considering developing an IPC compliant system. The system that has been developed and is currently in use within Celestica Inc. makes use of a non-contact optical Coordinate Measurement Machine (CMM). Key elements of this system are described in this paper including a methodology for verifying its accuracy and repeatability. Real-life examples are also presented to illustrate this system's value in acceptance testing, root–cause problem solving and machine trouble-shooting.

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 categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.494
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
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.016
GPT teacher head0.249
Teacher spread0.232 · 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