SMT Assembly
Prepare an SMT build around package types, panel design, paste, placement, reflow and inspection. Check material handling and first-article requirements.
View SMT Assembly ConfigurationsPCB assembly with one coordinated project scope
KFPCBA is a Shenzhen PCBA manufacturer integrating PCB fabrication, component sourcing and PCB assembly. We also provide PCB design support, so a project can begin with a released manufacturing package or with requirements that still need engineering work.
Choose who supplies the boards and components, then define assembly, programming and testing for the product. A clear material and acceptance scope makes quotations easier to compare and reduces unresolved decisions at the build stage.
Choose turnkey, consigned or mixed material supply
| Supply model | What belongs in the agreement | Useful next step |
|---|---|---|
| Turnkey assembly | PCB fabrication, BOM purchasing, approved sources, substitutions, assembly operations and agreed tests | Turnkey PCB assembly |
| Customer-supplied materials | Received quantities, packaging and moisture condition, shortages, replenishment and unused-material disposition | SMT build preparation |
| Mixed supply | An item-by-item responsibility list that identifies who purchases each part and approves changes | Component sourcing responsibilities |
For a design validation build, identify what the samples must prove through prototype assembly planning. For repeat builds, use low-volume assembly controls to keep revisions, approvals and material choices consistent.
Release matching board, BOM and placement data
- Bare-board manufacturing files or the identity of customer-supplied PCBs
- BOM with manufacturer part numbers, reference designators, quantities, variants and do-not-populate positions
- Placement data, board-side information, orientation references and assembly drawings
- Panel requirements, mechanical restrictions and any handling instructions
- Programming files, fixture interfaces and functional acceptance requirements when included
Use the PCB assembly RFQ checklist to align the BOM, placement data, DNP instructions, test scope and material responsibilities. Approve substitute components against function, footprint and project requirements. A matching description is not sufficient.
The engineering RFQ accepts the available project files. If the design or BOM is incomplete, use the project inquiry and describe which decisions remain open.
Set inspection and test coverage before production
| Method or stage | Question it helps answer | Boundary to retain |
|---|---|---|
| First article | Does the initial setup match the approved assembly revision? | Identify who may release the remaining build and how changes are recorded. |
| AOI and visual inspection | Were the defined visible placement and soldering features checked? | Visible inspection does not establish hidden-joint condition or product function. |
| X-ray and electrical tests | What hidden-joint or electrical conditions require dedicated inspection? | Coverage depends on access, method, fixtures and agreed criteria. |
| Programming and functional testing | Does the programmed board perform the specified functions under defined conditions? | Include firmware identity, stimuli, limits and the treatment of failures. |
Connect the test coverage plan with the quality and traceability records. Fixtures, firmware, calibration, enclosure assembly and regulatory work need an explicit scope rather than being assumed from an assembly quote.
From quotation to a controlled repeat build
- Review the same file revision, material responsibilities, quantity and requested delivery.
- Close sourcing, process and acceptance questions before approving the build package.
- Record first-article decisions, agreed inspection and tests, and the disposition of exceptions.
- Identify delivered boards and retain the agreed record package for repeat-order discussion.
The PCB assembly cost breakdown separates materials, setup, assembly and testing. Manufacturing readiness and transport are different milestones; the quotation should state what starts the agreed schedule.
Connect assembly scope to acceptance evidence
Quality and acceptance · Testing and delivery · Engineering RFQ with BOM and placement data
PCB Assembly Services Product Catalog
Browse by product type, then compare configuration details, process tradeoffs, and verification requirements.
BGA Assembly
Plan BGA assembly around pad geometry, package warpage, reflow limits and hidden-joint inspection. Define X-ray, rework and functional-test requirements.
View BGA Assembly Configurations
Through-Hole Assembly
Compare through-hole assembly routes for relays, terminals and power components. Define lead preparation, soldering, fastening and load-test requirements.
View Through-Hole Assembly Configurations
High-Frequency PCB Assembly
Plan RF assembly around component placement, grounding, shielding, connectors and measurement fixtures. Separate assembly checks from RF performance tests.
View High-Frequency PCB Assembly Configurations
Medical Electronics Assembly
Define medical PCB assembly requirements for sensing, control and power circuits. Review traceability, cleanliness, test coverage and project approvals.
View Medical Electronics Assembly Configurations
Industrial Electronics Assembly
Prepare industrial PCB assembly for field power, isolation, communication and control. Specify connectors, protection, programming and functional tests.
View Industrial Electronics Assembly Configurations
Consumer Electronics Assembly
Plan consumer-electronics assembly around audio, connectivity, controls and enclosure fit. Compare material supply, programming and end-of-line test scope.
View Consumer Electronics Assembly Configurations
Energy Storage Electronics Assembly
Review energy-storage board assembly for sensing, balancing, isolation and protection circuits. Define configuration, traceability and safe test conditions.
View Energy Storage Electronics Assembly Configurations
Automotive Electronics Assembly
Prepare automotive PCB assembly requirements with controlled revisions, traceability, customer quality requirements and evidence for the intended site.
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DIP Assembly
Specify DIP and other through-hole soldering work, including insertion, lead trimming and wave or selective soldering. Clarify what the assembly quote includes.
View DIP Assembly Configurations
Low-Volume PCB Assembly
Prepare repeatable low-volume PCB assembly with a released BOM, first-article approval and change control. Review setup reuse, material stock and test scope.
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Volume PCB Assembly
Plan volume PCB assembly around approved revisions, material availability, production tests and lot traceability. Define ramp-up and repeat-order controls.
View Volume PCB Assembly Configurations
Turnkey PCB Assembly
Combine PCB fabrication, component sourcing and assembly in one defined order. Compare material ownership, substitutions, testing and turnkey quote inclusions.
View Turnkey PCB Assembly Configurations
Single-Sided PCB Assembly
Plan single-sided PCB assembly around package placement, panel support and soldering access. Define inspection, programming and functional-test requirements.
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Double-Sided PCB Assembly
Review double-sided assembly sequences, thermal exposure and support tooling. Check component clearances, inspection access and test coverage.
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LED PCB Assembly
Plan LED board assembly around polarity, optical grouping, thermal paths and soldering conditions. Define brightness, current and functional-test requirements.
View LED PCB Assembly Configurations
Prototype PCB Assembly
Prepare prototype PCB assembly to resolve design risks. Align the BOM, placement files, programming and validation plan before the first build.
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Rigid-Flex PCB Assembly
Plan rigid-flex assembly around board support, forming sequence and component clearances. Define handling, inspection and functional-test requirements.
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Mixed SMT and THT Assembly
Coordinate SMT and through-hole assembly on one board. Review soldering sequence, thermal exposure, access, fixtures and post-assembly tests.
View Mixed SMT and THT Assembly Configurations
Special-Industry PCB Assembly
Define PCB assembly for projects with additional qualification or documentation needs. Verify site scope, traceability and customer acceptance requirements.
Special industry monitoring board assembly reference
Special industry power distribution board assembly reference
View Special-Industry PCB Assembly Configurations
