Material-stack compatibility
Review alumina grade and surface with conductor, resistor, dielectric, protection, terminal, cleaning, joining, and refire requirements before materials are released.
Alumina Ceramic Circuit Engineering
Custom Alumina Thick Film PCB
Custom alumina thick film PCBs can combine printed conductors, resistors, dielectric layers, protection, and assembly interfaces on a rigid ceramic substrate. Send the drawing, material requirement, artwork, electrical targets, operating conditions, joining method, quantity, and inspection plan so engineering can review the complete manufacturing route.
- Drawing-controlled material stack
- Artwork and registration review
- Functional-layer and assembly planning
- Project-defined inspection records
Alumina ceramicGrade by drawing
Printed layersStack by project
AssemblyInterface reviewed
Release basisEngineering review
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 reviews connect the ceramic, printed materials, artwork, electrical targets, and downstream assembly to one manufacturable release. Final materials, numerical limits, and records remain controlled by the customer drawing and approved project plan.
Artwork and registration
Check common datums, line and spacing rules, overlaps, openings, edge clearances, panel orientation, print direction, and inspection access across each printed layer.
Functional and assembly interfaces
Connect electrical targets, resistor or heater duty, pad finish, joining route, housing, heat path, cleaning, coating, and rework limits to the released design.
Inspection matched to risk
Select visual, dimensional, electrical, adhesion, assembly, traceability, and packing checks with measurable limits, sampling, equipment, and record format.
Typical Applications
These application directions are starting points for engineering review. Suitability depends on the released electrical, thermal, mechanical, environmental, assembly, and validation requirements.
Application illustrationPrecision resistor networks
Alumina circuits can be reviewed for compact resistor networks when the resistance map, tolerance, TCR, power distribution, trimming strategy, terminals, environment, and test method are drawing-defined.
Review resistor inputs
Application illustrationAlumina heating circuits
Heater layouts require voltage, power, target temperature, heat-transfer boundary, resistance tolerance, sensor interface, mounting, insulation, cycling, and safety criteria before the printed route is selected.
Review heater inputs
Application illustrationSensor and control elements
Printed tracks and terminal patterns may support sensor or control functions after travel, contact system, resistance curve, signal level, wear, media exposure, connector duty, and calibration requirements are released.
Review sensor inputsVerified Product Views
The available views show an eight-position alumina panel with printed routes, white terminal areas, dark functional regions, blue features, green coverage, and visible ceramic edges. They support review of visible form only; they do not establish material purity, printed chemistry, dimensions, electrical results, lot identity, inspection records, or shipment traceability.
- Visible product form
- Repeated rectangular circuit positions, ceramic edges, printed routing, terminal areas, dark functional regions, green coverage, and small blue features are visible.
- Quotation boundary
- Alumina grade, thickness, conductor and functional-layer identities, dimensions, tolerances, electrical targets, assembly conditions, and inspection limits remain drawing-controlled.
- Project records
- Material certificates, travelers, inspection results, electrical data, traceable lot photographs, and packing records are supplied only when they belong to the authorized order scope.
Manufacturing & Quality
Company resources support thick film screen printing, controlled firing, route-dependent resistor trimming, and final inspection. The applicable materials, artwork, thermal profile, trimming method, electrical checks, sampling, traceability, and acceptance records are confirmed for each released alumina circuit project.
View Full Capabilities
Technical FAQ
Short answers for quotation planning; released drawings and validation requirements remain controlling.
What information is needed to quote an alumina thick film PCB?
Send the dimensioned drawing and artwork, alumina grade or required material data, thickness, conductor and functional-layer notes, electrical targets, assembly method, operating conditions, inspection criteria, quantity, schedule, and required records. PDF, Gerber, DXF, DWG, STEP, Excel, and clear sample photographs can support the first review.
Can conductors, resistors, and dielectric layers be combined on alumina?
They can be evaluated as a compatible project stack. The conductor, resistor, dielectric, protection, and terminal systems must match the selected alumina surface, print sequence, firing route, electrical duty, joining process, and validation method. A photograph or generic material name is not enough to release the construction.
How are resistor values and tolerances confirmed?
The drawing should identify resistor geometry, target values, tolerance, TCR, power loading, test temperature, measurement points, and whether trimming is permitted. Engineering then reviews paste family, artwork allowance, firing interactions, trimming access, probe method, sampling, and the acceptance record required for the order.
What inspection can be included with an order?
Visual and dimensional checks form the usual starting point. Continuity, resistance, isolation, adhesion, solderability, wire-bond evaluation, thermal checks, traceability, and packing records can be added when the released drawing and purchase requirements define the method, sample size, limits, and document format.
Request an Alumina Thick Film PCB Quote
Send enough information to connect the alumina substrate, printed stack, artwork, electrical function, assembly method, operating environment, inspection plan, and order scope. Clear sample photographs can begin a review when final CAD data is not ready.
- Drawing-led DFM feedback and optimization support
- Prototype and production-route evaluation
- Confidential handling of customer drawings
- Project-specific material and test review
- Dimensioned drawing plus Gerber, DXF, DWG, PDF, STEP, or measured sample photographs with revision
- Alumina grade, purity, thickness, surface condition, certificate needs, outline, apertures, panelization, and tolerances
- Conductor, resistor, dielectric, protection, terminal, layer sequence, artwork, openings, and joining requirements
- Electrical and thermal targets, test nodes, loading, operating environment, assembly route, validation method, and acceptance limits
- Prototype quantity, expected lot volume, schedule, sampling, records, traceability, and protected packing requirements
- 1Upload drawings or measured sample photographs
- 2Engineering identifies missing release 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.