Board passives
Prepare a specified mounted-device stock for handset board assembly; selected filter needs follow the RF architecture Discovery hypothesis; acceptance remains open.
Discovered · unresearchedClosure: OpenInventory incomplete
Capability requirements and tolerances
Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.
Making steps · draft selected for navigation; not a validated fabrication specification.
Known Parts and Tools
The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.
| Requirement | Role | Use | Relationship status |
|---|---|---|---|
| Chip resistors | Part | incorporated or consumed; allocation remains open | Cycle-checked; compatibility unknown |
| Multilayer ceramic capacitors | Part | incorporated or consumed; allocation remains open | Cycle-checked; compatibility unknown |
| Wound inductors | Part | incorporated or consumed; allocation remains open | Cycle-checked; compatibility unknown |
| Radio filters and duplexers | Part | incorporated or consumed; allocation remains open | Cycle-checked; compatibility unknown |
| Electrical instruments | Tool | reused during construction/verification | Cycle-checked; compatibility unknown |
| Impedance measurement instrument | Tool | reused during construction/verification | Cycle-checked; compatibility unknown |
| Assembly fixtures | Tool | reused during construction/verification | Cycle-checked; compatibility unknown |
Making outline
- Prepare a specified mounted-device stock for handset board assembly; selected filter needs follow the RF architecture
- Build or acquire each explicit earlier physical input; establish independent references and interfaces.
- Make trials and accept only against the eventual caller specification; record uncertainty and rejected outputs.
What remains unresolved
- Making route and target-level requirements not researched.
- Full inventory, required quantities, process settings, numerical demand and suitability remain open.
Unselected discovery proposals
These are research questions, not published manufacturing dependencies. The seed combines alternatives, operating requirements and verification relationships.
Passive components, Electrical instruments, Assembly equipment
Earlier research provenance
- proposals/2026-10-08-discovery/electronics/frontier-report.md
Used by
Items that directly require this item in their selected inventory.
- Antenna matching network
- Antenna tuner
- Battery disconnect switch assembly
- Battery protection threshold comparator assembly
- Camera actuator drive circuit
- Camera readout fixture
- Charging control
- Main board
- NFC interface
- Power management
- Radio amplifier matching network
- RF front end
- Touch controller
- WiFi and Bluetooth module
Paths from Smartphone
These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.
Shortest route: Smartphone → Main board → Board passives
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