Via construction definition
Review ceramic preparation, aperture size, land geometry, metallization or fill material, print and firing sequence, finished dimensions, and cross-section requirements.
Metallized Via Circuit Engineering
Custom Thick Film Circuit with Metallized Vias
Custom thick film circuits with metallized vias require the ceramic openings, via material, land geometry, face artwork, net map, electrical duty, assembly interface, and verification method to be released together. Send the drawings, via table, operating conditions, quantity, and test plan so engineering can review construction and manufacturability.
- Via construction and aperture review
- Face mapping and shared datum control
- Continuity and isolation planning
- Project-defined cross-section and records
- Via table
- Construction by drawing
- Both faces
- Net map required
- Continuity
- Test plan released
- Release basis
- Engineering review
Product Categories
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Verified capability review
Quick Specifications
Thick Film Circuit with Metallized Vias 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 7 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 |
| Metallized-via plan | Hole, land, metallization, and cross-side continuity controlled by drawing | Via geometry, coverage, resistance, sectioning, and cycling by product risk | Approved ceramic drawing and first-article continuity results |
Engineering Capabilities
Four controls connect aperture geometry, via construction, printed faces, electrical duty, and assembly to one released product. Surface views support an initial review; internal construction and performance require drawing-controlled verification.
Face mapping and registration
Control face names, viewing direction, mirror rules, common datums, via locations, net assignments, artwork compensation, print order, and measurable alignment limits.
Continuity and assembly interfaces
Connect each via to its nets, current duty, isolation boundary, pad finish, joining route, connector, housing, coating, cleaning, and mechanical loads.
Verification matched to risk
Select dimensions, continuity, isolation, resistance, cross-sections, coverage, adhesion, cycling, traceability, and packing checks with agreed sampling and records.
Typical Applications
These application directions show where a drawing-controlled via route may fit after construction, electrical, assembly, environmental, and validation requirements are defined.
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 illustrationMulti-channel sensor interfaces
A via-enabled ceramic route can be reviewed for compact sensor interfaces after the channel map, face assignments, connector layout, signal levels, shielding, isolation, environment, and test plan are defined.
Review interface inputs
Application illustrationCompact hybrid electronics carriers
Front-to-back connections may support compact hybrid layouts when via construction, net duty, pad finish, die or component attachment, wire bonding, heat flow, cleaning, and reliability criteria are released.
Review hybrid inputs
Application illustrationPrecision validation fixtures
Via continuity and isolation can be planned around controlled probe access, shared datums, measurement nodes, fixture loads, environmental conditions, acceptance limits, calibration, sampling, and result records.
Review test inputsVerified Product Views
The available views show fork-like ceramic circuit forms, slots, repeated apertures, metal-colored surface rings, gold-colored routes, green coverage, light rectangular regions, and paired front and rear surfaces. They do not reveal hole walls or prove metallization, fill, front-to-back continuity, isolation, current capacity, dimensions, inspection results, lot history, or shipment traceability.
- Visible product form
- Fork-like outlines, slots, mounting features, repeated apertures, metal-colored surface rings, green coverage, light regions, and printed routes are visible.
- Hidden construction boundary
- Hole-wall coverage, fill, via material, finished diameter, connection map, continuity, isolation, current duty, and reliability cannot be established from surface photographs.
View 1 additional evidence boundaries
- Required project proof
- Controlled drawings, via tables, construction records, cross-sections when required, electrical results, traceability, and packing evidence must belong to the authorized order.
Manufacturing & Quality
Company resources support thick film screen printing, controlled firing, laboratory inspection, and managed production at the Dongguan site.
Read the shared manufacturing-control scope
The applicable ceramic, via route, artwork, firing plan, electrical checks, sampling, traceability, and acceptance records are confirmed for each released project.
Technical FAQ
Short answers for quotation planning; released drawings and validation requirements remain controlling.
What defines a metallized via in a thick film ceramic circuit?
The released construction must define the ceramic opening, preparation, metallization or fill material, land geometry, print and firing sequence, finished dimensions, connected nets, electrical duty, assembly interface, and verification method. A metal-colored ring on the surface is not enough to define or qualify a via.
Do the product photographs prove hole-wall metallization or continuity?
No. The available views show surface rings and apertures, but the hole walls are not visible and no cross-section, continuity map, electrical result, or traceable construction record accompanies those views. Hole-wall coverage, fill, front-to-back continuity, isolation, current capacity, and reliability require project-specific verification.
What files are needed to quote metallized vias?
Send the dimensioned ceramic drawing, separate face artwork, via table, net map, substrate requirement, via material or construction notes, conductor system, current and voltage conditions, assembly details, operating environment, test plan, quantity, schedule, and required records. Include cross-section or qualification criteria when they are design-critical.
How can via construction be inspected?
The inspection plan may include surface visual checks, aperture and land dimensions, continuity and isolation testing, resistance limits, cross-section analysis, wall or fill coverage, adhesion, thermal or current cycling, and traceability. The drawing and validation plan must define which checks apply, their sample size, limits, and record format.
Request a Metallized Via Thick Film Circuit Quote
Send enough information to connect the ceramic, via table, face artwork, net map, electrical duty, assembly route, operating environment, verification plan, and order scope. Clear sample photographs can begin a review, but internal via construction must be drawing-defined.
RFQ inputs and review sequence
- Drawing-led DFM feedback and optimization support
- Prototype and production-route evaluation
- Confidential handling of customer drawings
- Project-specific via and electrical review
- Dimensioned ceramic drawing plus separate face artwork, viewing direction, mirror rules, shared datums, and revision
- Via table with aperture sizes, land geometry, construction or fill notes, connected nets, current duty, isolation boundaries, and tolerances
- Ceramic material, conductor and via systems, layer sequence, firing constraints, pad finish, joining route, and assembly details
- Continuity, isolation, resistance, voltage, current, environment, cross-section or reliability needs, test method, and acceptance limits
- Prototype quantity, expected lot volume, schedule, sampling, records, traceability, and protected packing requirements
- 1Upload drawings, artwork, via table, and net map
- 2Engineering identifies missing construction 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.