Development of Laser Trimming of Embedded Resistors for Printed Circuit Board Manufacturing
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT In the printed circuit board industry, the growing demand for a higher number of circuit components to be contained in smaller circuit areas requires that some of the passive components (resistors, capacitors, etc) are now embedded within the board. This allows for tighter component placement with lower via counts and has also increased the reliability of these devices. For thick film resistors, the resistor paste for embedded resistors is usually screen-printed on the surface of the PWB laminate (either copper or dielectric) that is patterned according to the circuit design. Current technologies require wet paste that is oven cured after placement. This paste process results in a resistor with a tolerance of 10-50% from the target value. Thin film resistors deposited on the PWB also show variation in their values. Resistor trimming is required to bring this tolerance down to about 1-5% as required by the PWB design. This paper discusses the implementation of passive resistor trimming for large panel manufacturing.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it