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PCB Assembly SMT Through-Hole Testing

Contract PCB assembly built around your production requirements

Based in Gilford, New Hampshire, Core Assemblies supports customers throughout New England, across the United States, and internationally with printed circuit board assembly from prototype builds through scheduled production.

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Explore detailed capability, industry, quality, and process pages from the navigation above.

Surface-mount placement equipment assembling components on a printed circuit board
Recently expandedSMT production capacityNew Essemtec PUMA Ultra pick-and-place system
Experience35+ years in business
Production focusPrototype through larger scheduled orders
Inspection criteriaIPC-A-610 Class 2
CAGE Code441M8
SMT capacityPUMA Ultra expansion

Production capabilities

PCB assembly built around real production needs

Core builds from customer-provided bills of materials, drawings, schematics, component specifications, supplied kits, and manufacturing documentation—from prototype assembly through dependable repeat production.

Discuss your build scope
01

Surface Mount Technology

Single and double-sided high-mix PCB assembly, including component placement down to 0201.

02

Through-Hole PCB Assembly

Dependable through-hole assembly supported by wave solder capability and trained technicians.

03

Cable & Harness Assembly

Customer-specific cable and harness builds coordinated with broader electronics production needs.

04

Conformal Coating

Protective coating support for circuit boards used in technical equipment and field applications.

05

Rework, Repair & Modification

Controlled board modifications, troubleshooting, repair, SMT rework, and desoldering services based on customer documentation.

06

Functional Testing

Functional testing performed around documented assembly and performance requirements.

07

AOI Inspection

Automatic optical inspection supports consistent board-level quality and repeatability.

08

Kit Supplied or Turnkey

Assembly of customer-supplied kits or purchasing of customer-specified components against the approved BOM.

09

Integrated Box-Build Services

Production support that extends beyond circuit boards into complete integrated assemblies.

10

Scheduled Production

Blanket orders and scheduled releases support medium-volume and larger repeat production requirements.

Established and accountable

A trusted manufacturing partner

Woman-owned and serving customers for more than 35 years, Core Assemblies supports manufacturers, engineers, and procurement teams with dependable electronic assembly services.

SBA Woman-Owned Small Business

Woman-Owned Small Business

Actively woman-owned and family-operated.

IPC Member

IPC Member

Connected to the electronics industry association behind widely used assembly standards and training.

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Surface Mount Technology Association Member

SMTA Member

Member of the Surface Mount Technology Association’s electronics manufacturing community.

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BBB A+ Rating

Listed with an A+ rating. Core Assemblies is not BBB accredited.

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Registered Manufacturer

CAGE 441M8 · DUNS 603156399 · NAICS 334418

Customer-focused manufacturing

A family-operated manufacturer with a practical approach

Core Assemblies began with assembly work performed from home and was incorporated in 1988. As demand grew, the woman-owned company expanded into a dedicated Gilford facility. Family members have contributed throughout its history, including the creation of the company’s circuit-inspired logo.

35+ years in businessLong-standing support for technical equipment manufacturers across demanding markets.
Prototype through scheduled productionTypical orders range from 25 to 100 boards, with some programs reaching 2,000 units or more.
Flexible material modelsCore can assemble customer-supplied kits or purchase customer-specified components for turnkey builds.
Quality-driven productionInspection criteria aligned with IPC-A-610 Class 2, supported by AOI and functional testing.

Markets served

Assembly experience across specialized industries

Core Assemblies supports a range of specialized industries, with experience in medical instrumentation, surveying equipment, communications, industrial electronics, and other technical applications.

Ground Surveying Equipment

High-mix assembly experience for precise instruments and measurement systems with specialized requirements.

Medical Instrumentation

Consistent production support for technical medical equipment where build quality and repeatability matter.

Communications Equipment

Documented assembly support for specialized communications hardware and related technical applications.

Industrial Equipment

Dependable control and equipment electronics supported from prototype builds through ongoing production.

Additional expertiseMilitary and aerospaceEmerging technologiesNew venture startupsAutomotiveMarineAlternative energy
Automated SMT pick-and-place line assembling an array of printed circuit boardsCapacity expansion / 2026

Recent investment

Expanded SMT capacity with Essemtec PUMA Ultra

Core Assemblies recently added a new Essemtec PUMA Ultra pick-and-place system to increase SMT capacity, improve flexibility, and support increasingly complex high-mix PCB assembly programs.

Advanced SMT capabilitySupports increasingly complex and miniaturized components with improved speed, accuracy, and efficiency.
High-mix flexibilityBuilt for prototypes, low- and medium-volume work, and larger scheduled orders where requirements can change.
Prototype through full productionSupports customers from prototype development through production builds.
Continued investmentReflects Core’s focus on precision, dependable quality, and long-term customer success.
Send your BOM or assembly notes Read the Essemtec capacity announcement
Automated optical inspection camera scanning components on a populated printed circuit board
Inspection built into the processAOI and functional testing support

Quality assurance

Quality programs for mission-critical applications

Supporting military/aerospace, medical, instrumentation, and industrial equipment customers with inspection criteria aligned with IPC-A-610 Class 2, plus AOI and functional testing for customer-specific requirements.

ESD compliantProduction environment
IPC trainedProduction personnel
  • Inspection criteria aligned with IPC-A-610 Class 2
  • J-Standard workmanship practices
  • Support for customer-specific military requirements
  • Documentation and traceability aligned with ISO 9000 practices
  • IPC-trained personnel
  • ESD-compliant production environment
  • Automatic optical inspection
  • Functional testing

Production resources

People, process, and equipment working together

Trained technicians and practical production equipment support reliable PCB assembly from prototypes and 25-to-100-board orders through repeat runs of 2,000 units or more.

Electronics technician soldering and reworking components on a printed circuit board

SMT Placement

PUMA Ultra and FLX2010 pick-and-place systems support flexible, high-mix PCB assembly.

AOI Inspection

Mirtec automatic optical inspection supports repeatable board-level quality review.

Reflow & Wave Solder

Reflow and wave solder resources support both SMT and through-hole production needs.

Cleaning & Pre-Bake

Aqueous cleaning and pre-bake processes support controlled assembly preparation.

Rework & Desoldering

Dedicated rework and temperature-controlled soldering support modifications and repairs.

Programming & Forming

Programming and lead-forming equipment help complete specialized assembly requirements.

A practical RFQ process

Direct quote support from files through delivery

  1. 01

    Send requirements

    Share your BOM, drawings, schematics, component specifications, supplied-kit details, and assembly notes.

  2. 02

    Review requirements

    Align on quantities, timeline, materials, and quality needs.

  3. 03

    Confirm build scope

    Define materials, SMT, through-hole, testing, coating, blanket-order, or scheduled-release needs.

  4. 04

    Build and inspect

    Move through assembly, inspection, and required testing.

  5. 05

    Deliver

    Complete the run and deliver to the agreed requirements.

Start a conversation

Send your PCB assembly project for review

Share the customer-provided information available for your build—such as a BOM, drawing, schematic, component specification, supplied-kit list, quantity, and timeline. Files are optional when an NDA needs to come first.

Call Core Assemblies603.293.0270
Email Core Assemblieskari@coreassemblies.com
Gilford, New Hampshire

21 Meadowbrook Lane, Unit 4
Bayview Business Park
Gilford, NH 03249

Prefer to start with a conversation? Send us a brief email and we’ll let you know what information is needed for your quote.

Project intakeFields marked “Required” must be completed. Provide what you have; Core can help clarify the rest.
RFQ Review

Upload up to 10 files. Each file may be up to 25 MB. Accepted files include PDF, ZIP, Excel, CSV, Word, JPG, PNG, and TXT.

Files are optional. If an NDA is required before sharing a BOM, drawing, schematic, or other project documentation, submit the form without attachments and let us know.

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    Files are sent directly to Formspree with this request and are not stored on the Core Assemblies website server. By submitting this form, you acknowledge our Privacy Policy and Terms of Use. If an NDA or controlled-data transfer method is required, submit without attachments and tell us.