Crossover stack definition
Review substrate, lower conductor, dielectric material and build, upper conductor, optional protection, openings, print count, firing sequence, and refire compatibility.
Printed Crossover Engineering
Custom Thick Film Dielectric Crossover Circuit
Custom thick film dielectric crossover circuits require the lower conductor, dielectric footprint, upper conductor, overlap, registration, net relationship, electrical limits, and firing sequence to be released together. Send the layer artwork, stack requirements, operating conditions, assembly details, quantity, and test plan so engineering can review manufacturability.
- Conductor-dielectric stack review
- Overlap and registration control
- Net, continuity, and isolation planning
- Project-defined electrical records
96% AluminaSubstrate material
0.25 – 3.0 mmBoard thickness
≥ 100 μmMinimum line/space
Up to 850°CFiring temperature
On this pageOverview
Quick Specifications
Twelve practical selection values cover the ceramic substrate, printed conductor and resistor systems, firing condition, geometry, finish, and dielectric strength.
Final values confirmed against customer drawing.
| Substrate Material | 96% / 99% / 99.6% Alumina / AlN |
|---|---|
| Board Thickness | 0.25–3.0 mm |
| Conductor System | Ag / Ag-Pd / Pt-Ag / Au |
| Resistor System | RuO₂ thick film |
| Conductor Thickness | 10–25 µm typical |
| Resistance Tolerance | ±1% standard (±0.5% available) |
| Firing Temperature | Up to 850°C |
|---|---|
| Thermal Conductivity | ≥24 W/m·K, 96% alumina reference |
| Minimum Line/Space | ≥100 µm |
| Board Size | Max. 120 × 120 mm; larger on request |
| Surface Finish | Bare Ag / ENIG / ENEPIG |
| Dielectric Strength | ≥15 kV/mm |
Engineering Capabilities
Four controls connect the printed stack, overlap, registration, net relationship, electrical limits, and assembly to one released crossover structure. Visible surface features support an initial review but do not prove dielectric identity or function.
Overlap and registration control
Define artwork datums, crossover footprint, conductor-to-dielectric overlap, edge clearance, print direction, compensation, tolerance, inspection access, and measurable acceptance limits.
Net and assembly interfaces
Connect each lower and upper route to its net duty, continuity and isolation requirements, test points, terminals, joining route, housing, coating, cleaning, and environment.
Electrical verification plan
Select visual, dimensional, registration, continuity, isolation, leakage, adhesion, environmental, traceability, and packing checks with agreed conditions, sampling, and records.
Typical Applications
These application directions show where a localized printed crossover may fit after stack, electrical, assembly, environmental, and validation requirements are defined.
Application illustrationIndustrial instrument controllers
Localized printed crossings may support compact controller routing after the substrate, layer stack, net relationships, electrical loading, connector layout, enclosure, environment, and validation plan are released.
Review controller inputs
Application illustrationSensor signal-conditioning modules
Dense routing can be evaluated for sensor interfaces when channel relationships, signal levels, shielding, grounding, isolation needs, connector geometry, temperature, contamination, and test criteria are defined.
Review sensor inputs
Application illustrationCompact actuator control assemblies
Actuator electronics require the motion interface, connector, current paths, grounding, crossover locations, vibration, temperature, housing, assembly method, service access, and acceptance plan to be released together.
Review crossover inputsVerified Product Views
Five physical product views show elongated pale-green circuit forms with visible gold or amber routing, silver pads and solder joints, black components, terminals, labels, and different surface layouts. These views document product form only; they do not establish dielectric identity, layer order, crossover function, continuity, isolation, voltage performance, dimensions, inspection results, lot history, or shipment traceability.
- Visible product form
- Elongated rectangular forms, several surface-layout variants, visible routing, silver pads and joints, dark components, terminals, edge details, and product markings are visible.
- Hidden structure boundary
- Material identities, layer sequence, fired build, overlap, net relationships, continuity, isolation, withstand performance, and electrical function cannot be proven from surface photographs.
- Required project proof
- Controlled artwork, material records, stack and process records, electrical results, traceability, and packing evidence must belong to the corresponding authorized order.
Manufacturing & Quality
Company resources support thick film screen printing, controlled firing, laboratory inspection, and managed production at the Dongguan site. The applicable ceramic, conductor, dielectric, artwork, firing route, electrical checks, sampling, traceability, and acceptance records are confirmed for each released project.
View Full Capabilities
Technical FAQ
Short answers for quotation planning; released drawings and validation requirements remain controlling.
What is a thick film dielectric crossover?
It is a drawing-defined printed structure in which one conductor route passes over another through a compatible dielectric layer. The substrate, lower conductor, dielectric footprint, upper conductor, overlap, registration, print and firing sequence, net relationship, electrical limits, assembly, and verification method must be released for the project.
Can surface photographs prove a dielectric crossover structure?
No. The photographs confirm physical circuit variants, visible routing, pads, components, terminals, and markings. They do not identify the lower conductor, dielectric footprint, upper conductor, layer sequence, fired build, overlap, continuity, isolation, withstand voltage, or electrical function of a crossover. Those items require controlled artwork, material records, and agreed tests.
What information defines crossover electrical performance?
Provide the lower and upper route geometry, dielectric footprint and material, fired build, overlap, registration tolerance, net relationship, continuity points, working and transient voltage, current, isolation or leakage limits, environment, test access, equipment, sampling, and acceptance method. Unreleased numerical values remain project-specific.
What files should be sent for quotation?
Send the controlled circuit drawing, Gerber or layer artwork, schematic or net map, substrate requirement, conductor and dielectric notes, dimensions and tolerances, electrical and environmental inputs, assembly method, inspection plan, quantity, schedule, and required records. Clear sample photographs can start a review but cannot replace the stack definition.
Request a Thick Film Dielectric Crossover Quote
Send enough information to connect the ceramic, lower route, dielectric footprint, upper route, net map, electrical duty, assembly, environment, verification plan, and order scope. Clear sample photographs can begin a review, but the printed stack must be drawing-defined.
- Drawing-led DFM feedback and optimization support
- Prototype and production-route evaluation
- Confidential handling of customer drawings
- Project-specific stack and electrical review
- Dimensioned ceramic drawing plus lower-route, dielectric, upper-route, and optional protection artwork with revision and shared datums
- Crossover table with locations, footprint, overlap, openings, keep-outs, registration limits, net relationships, and test access
- Substrate, conductor, dielectric, protection, print and firing sequence, terminal duty, joining route, and assembly details
- Continuity, isolation, leakage or withstand conditions when applicable, current, environment, validation method, and acceptance limits
- Prototype quantity, expected lot volume, schedule, sampling, records, traceability, and protected packing requirements
- 1Upload drawings, layer artwork, and net map
- 2Engineering identifies missing stack inputs
- 3Confirm the prototype and validation route
Submit RFQ and upload files
PDF, DWG, DXF, STEP, Gerber, ZIP, Excel, Word, or sample photos are accepted.