Characterization of a flip-chip interconnect at frequencies up to 30 GHz
Bibliographic record
Abstract
In this paper, a coplanar-waveguide on the mother board connected by a bump with another coplanar-waveguide on the chip is analyzed in the range of frequencies between 1 GHz and 30 GHz. Various package-schemes of a flip-chip are presented and analyzed. The variations include the length of the overlap of the cpw on the mother-board and the cpw on the chip. It is concluded that the overlap of the coplanar waveguides is one of the most important parameters which determine the characteristics of the bump-connection. Based on the S-parameters, the important physical parameters of the bump-connections are analyzed and recommendations are made concerning the bump connection. The S-parameters are used in order to calculate the Y-parameters, from which the circuit model is obtained. The parameters of the circuit model are calculated and demonstrated for frequencies between 1 GHz and 30 GHz. The results presented in this paper are obtained by a method of moment.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".