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 ceramic
- Grade by drawing
- Printed layers
- Stack by project
- Assembly
- Interface reviewed
- Release basis
- Engineering review
Product Categories
From design choice to a quoted part
Custom alumina substrates carrying printed circuit functions. The real panel photographs show an example construction; the supplied drawing determines the delivered outline, circuit pattern and inspection requirements.
Prepare the drawing review
Send dimensioned artwork, alumina grade if fixed, printed-layer requirements, terminals, resistance targets, environment, test criteria and quantities.
Send Drawings- Grade and surface
- Specify grade, thickness, printed faces and surface condition together. Purity alone does not define print quality or finished-circuit performance.
- Mechanical interfaces
- Identify mounting points, holes, connector spans and handling constraints before choosing thickness or panelization.
- Electrical acceptance
- Separate material composition evidence from resistance, insulation and functional measurements on the finished circuit.
Review with your project filesDFM checklistCompany certificates and sample reportsPrototype-to-batch review
Engineering reading for this purchase
- Specifying Alumina Substrates for Mixed Thick-Film Printing
Define the supplied alumina surface, free-state geometry and artwork datum needed for a controlled conductor-and-resistor print trial.
- Selecting a specified alumina grade without using purity alone
Compare alumina candidates using grade identity, surface response, thickness and functional acceptance rather than a purity percentage alone.
- Thick Film Profilometry: When Sampling Hides Surface Ridges
Check whether spatial sampling can hide or misrepresent periodic thick film surface features before using a smooth profile for a dimensional decision.
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Verified capability review
Quick Specifications
Alumina Thick Film PCB is shown against approved company capability control sheets.
Capability source: approved company category control sheets. Final values remain drawing- and sample-controlled.
| Parameter | Standard capability | Engineering review range | Final release |
|---|---|---|---|
| Substrate Material | 96% Alumina (Al₂O₃) standard route | 99% / 99.6% alumina or AlN through material and process review | Approved material specification, drawing, and incoming criteria |
| Board Thickness | 0.25–3.0 mm | Thickness inside 0.25–3.0 mm is checked against outline, flatness, holes, handling, and firing | Approved material specification, drawing, and incoming criteria |
| Conductor System | Silver (Ag) / Silver-Palladium (Ag-Pd) | Pt-Ag, Au, bonding, soldering, contact, and high-temperature routes by compatible stack review | Approved material stack, assembly interface, and sample |
| Resistor System | RuO₂ thick film | Paste family, sheet resistance, geometry, refire sequence, and trim allowance by circuit target | Released drawing and approved sample |
| Conductor Thickness | 10–25 µm | Value inside 10–25 µm is selected for print build, firing, current path, and assembly | Released drawing, DFM approval, and first-article inspection |
| Resistor Tolerance | ±1% standard | ±0.5% available after geometry, material, trimming, and measurement review | Released drawing and approved sample |
View 6 additional engineering review checks
| Parameter | Standard capability | Engineering review range | Final release |
|---|---|---|---|
| Firing Temperature | Up to 850°C | The peak profile is paste- and stack-specific within the approved route; later refires are reviewed together | Approved material-process route and production traveler |
| Thermal Conductivity | ≥24 W/m·K, 96% alumina reference | Alternative alumina grade or AlN route by approved material certificate and system thermal review | Released drawing and approved sample |
| Minimum Line/Space | ≥100 µm | Geometry at the ≥100 µm controlled capability is checked for paste, screen, registration, overlap, edge clearance, and yield | Released drawing, DFM approval, and first-article inspection |
| Board Size | Up to 120 × 120 mm | Larger than 120 × 120 mm by panel, flatness, handling, firing, and inspection review | Released drawing, DFM approval, and first-article inspection |
| Surface Finish | HASL / ENIG / ENEPIG | Finish selected for soldering, bonding, contact, storage, and downstream thermal exposure | Approved material stack, assembly interface, and sample |
| Dielectric Strength | ≥15 kV/mm | Product withstand voltage is derived from dielectric material, fired thickness, clearances, interfaces, and test method | Released insulation stack and agreed IR/withstand test plan |
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 images are engineering illustrations, not customer projects, production records, or evidence of a released design. Suitability is confirmed only after the drawing, interfaces, operating conditions, risks, and validation plan are reviewed.
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.
View 1 additional evidence boundaries
- 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.
Read the shared manufacturing-control scope
The applicable materials, artwork, thermal profile, trimming method, electrical checks, sampling, traceability, and acceptance records are confirmed for each released alumina circuit project.
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.
RFQ inputs and review sequence
- 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.
The drawing-upload form loads as you reach this section.