Skip to main content
Skip to content
TekRabbits Rapid. Reliable. Remarkable.
Instant PCB Order

TekRabbits PCB knowledge desk

Find the right PCB answer, faster.

Exploded multilayer PCB stack showing copper, dielectric and plated through holes

What do you need help with?

Search in plain language, or choose the part of the build you are working on. Every result opens a focused guide with recommendations, comparisons and engineering references.

Explore the library

Recommended starting points

12 recommended guides

Close-up of four PCB material samples showing their different substrates and forms PCB setup

Base material

Choose the board family that supplies the mechanical and electrical foundation for the design.

Read the guide ↗
Macro cross-section of a multilayer PCB with thin copper foils and a plated via PCB setup

Layers

Set the number of copper layers your electrical and mechanical design needs.

Read the guide ↗
Caliper measuring the outer edges of a green PCB with an internal cut-out PCB setup

Board dimensions

Confirm the analysed outline size and keep the build aligned with the submitted design.

Read the guide ↗
Fan of identical loose PCBs beside a manufacturing panel containing six circuits PCB setup

PCB quantity

Choose how many finished boards or panels the order should contain.

Read the guide ↗
Three related PCB modules in industrial, rugged aluminium and clean white enclosures PCB setup

Product type

Describe the application context so the estimate is interpreted with the right quality expectations.

Read the guide ↗
A compact PCB on a production carrier beside five working-day tiles, muted weekend tiles and a coral priority marker. Order preference

PCB fabrication time

Choose the working-day option that fits the build schedule.

Read the guide ↗
Three compact PCB presentations: a single board in a tray, a framed four-board panel and a rail-supported four-board panel. PCB basics

Delivery format

Tell us whether the delivered unit is a single board or a panelled format.

Read the guide ↗
Three upright rigid PCB edge profiles from thin to thick beside a precision thickness gauge and connector edge. PCB basics

PCB thickness

Choose a finished thickness that fits the enclosure and electrical stack-up.

Read the guide ↗
Six small identical PCB samples in red, blue, green, purple, black and white solder mask with contrasting silkscreen marks. PCB basics

PCB colour

Choose the solder-mask colour that fits inspection and product identity.

Read the guide ↗
A compact green PCB and white solder-mask coupon with high-contrast legend marks, polarity symbols and connector outlines. PCB basics

Silkscreen

Use the legend colour that gives clear markings against the selected solder mask.

Read the guide ↗
Three clean PCB edge cross-sections showing standard laminate, higher-thermal-margin laminate and low-loss high-frequency construction. PCB basics

Material type

Choose the compatible laminate grade when the design needs a particular characteristic.

Read the guide ↗
Four compact copper pad samples showing flat protected copper, rounded HASL pads, lead-free HASL and flat gold-toned ENIG. PCB basics

Surface finish

Choose how exposed copper pads should be protected and prepared for soldering.

Read the guide ↗
Three PCB edge cross-sections showing thin, medium and heavy outer copper with a heat-flow cue. PCB basics

Outer copper weight

Set the copper thickness needed for current, heat and mechanical reliability.

Read the guide ↗
Three compact PCB formats: a single board, a four-board V-score panel and a four-board routed-tab panel with rail holes. PCB advanced specifications

Panelisation

Choose whether the order is delivered as individual boards or a production panel.

Read the guide ↗
Four compact PCB via cross-sections showing solder-mask tenting, an open via, a plugged via and a flat filled-and-capped via-in-pad. PCB advanced specifications

Via covering

Choose how via openings should be protected or filled.

Read the guide ↗
Three compact via cross-sections showing a continuous copper barrel, a conductive adhesive core and uniform copper deposition. PCB advanced specifications

Via plating method

Specify a via-plating process only when the design needs it.

Read the guide ↗
Three plated via cross-sections from large to tiny beside a precision gauge. PCB advanced specifications

Minimum via hole

Choose the smallest via geometry while respecting the analysed board.

Read the guide ↗
A compact PCB edge, caliper and enclosure datum illustrating normal and precision-controlled outline fit. PCB advanced specifications

Board outline tolerance

Choose how closely the finished outline must follow the drawing.

Read the guide ↗
A compact PCB preview beside a blank fabrication drawing, magnifying inspection circle and green approval or coral hold controls. PCB advanced specifications

Confirm production file

Choose whether the production package receives an explicit confirmation step.

Read the guide ↗
Two compact PCB areas, one unmarked and one with a small parallel-bar mark in a reserved zone under an inspection camera. PCB advanced specifications

Mark on PCB

Decide whether the manufactured board needs a traceability mark.

Read the guide ↗
A compact PCB on a flying-probe fixture with several probes contacting test points and green or coral indicator lights. PCB advanced specifications

Electrical test

Select the electrical verification level appropriate for the build.

Read the guide ↗
A compact PCB under a microscope beside a caliper and blank inspection report sheet with abstract check boxes and a plotted trace. PCB advanced specifications

Inspection report

Request the inspection evidence that matches the acceptance plan.

Read the guide ↗
A compact PCB beside a blank note card, dimension arrow, datum marker and green approval check. Order hand-off

Special instructions

Capture the few build requirements that structured options cannot express.

Read the guide ↗
Two compact PCB assembly scenes showing simple spaced placement and dense mixed-component placement with inspection. PCB assembly

Assembly type

Choose the assembly path that matches the board, component data and production intent.

Read the guide ↗
Three compact PCB assembly views showing top-side placement, bottom-side placement and both-side assembly. PCB assembly

Assembly side

Tell the assembly process which board faces carry components.

Read the guide ↗
Three trays showing many bare boards, fewer populated boards and a small spare or test-unit tray. PCB assembly

Assembly quantity

Choose how many boards should receive components.

Read the guide ↗
An assembled PCB with an abstract parallel-bar mark in a reserved clear zone under a small inspection camera. Traceability

Barcode / serial number settings

Configure a production-generated board identifier for service and traceability.

Read the guide ↗
Compact technical visual showing a PCB gold-finger edge mating with a card-edge connector. PCB advanced specifications

Gold fingers

Design durable plated edge contacts for the intended connector.

Read the guide ↗
Compact visual showing a castellated module edge with plated half-holes and soldered host-board pads. PCB advanced specifications

Castellated holes

Prepare edge half-holes for solder-down modules.

Read the guide ↗
Compact macro view of copper wrapping a PCB edge into a metal chassis. PCB advanced specifications

Edge plating

Define conductive board edges for shielding, grounding or contact.

Read the guide ↗
Compact technical view of a controlled-depth PCB recess under a milling tool. PCB advanced specifications

Blind slots

Specify controlled-depth routed recesses without ambiguity.

Read the guide ↗
Compact PCB inspection visual showing a neutral recognition-mark area under controlled review. Advanced options

UL marking

Understand when a recognised compliance mark may be used.

Read the guide ↗
Compact humidity indicator card visual beside moisture-barrier packaging and a PCB stack. Advanced options

Humidity indicator card

Add a visible moisture-exposure indicator to controlled packaging.

Read the guide ↗
Four spring probes contacting a copper test path on a PCB. Advanced options

4-wire Kelvin test

Measure low resistance without lead and probe resistance dominating.

Read the guide ↗
Compact stack of PCBs with protective paper sheets between board surfaces. Advanced options

Paper between PCBs

Separate finished boards when cosmetic rubbing is a concern.

Read the guide ↗
PCB surface under a neutral inspection lens for appearance review. Advanced options

Appearance quality

Set objective cosmetic expectations for visible board surfaces.

Read the guide ↗
Compact macro view of a PCB legend-printing head and abstract white artwork. Advanced options

Silkscreen technology

Match the legend process to artwork size and readability.

Read the guide ↗
A PCB placement reference with visual callouts beside a populated board and organized component pockets. PCB assembly

Assembly instructions

Write concise, measurable requirements tied to released documents.

Read the guide ↗
PCB panel held by locating pins through non-functional tooling holes PCB assembly

Tooling holes

Create repeatable datums for fixtures and assembly equipment.

Read the guide ↗
Compact visual of an inspection camera checking PCB component placement PCB assembly

Confirm parts placement

Review interpreted coordinates, rotations, polarity and side.

Read the guide ↗
Compact solder-paste stencil in a protected cabinet slot PCB assembly

Stencil storage

Decide whether a revision-specific stencil should be retained.

Read the guide ↗
Compact PCB fixture sliding into a protected rack with foam support PCB assembly

Fixture storage

Retain controlled test or assembly tooling for repeat builds.

Read the guide ↗
Compact visual of reels, trays and package geometry used to choose assembly parts PCB assembly

Parts selection

Assign responsibility for exact parts and approved substitutes.

Read the guide ↗
Compact visual of component trays, drying oven and moisture-barrier packaging. PCB assembly service

Bake components

Handle moisture-sensitive components using controlled requirements.

Read the guide ↗
Compact visual of an assembled PCB with blank comparison images under inspection. PCB assembly service

Photo confirmation

Use a visual checkpoint with a defined acceptance purpose.

Read the guide ↗
Close view of an assembled PCB under a fine rinse spray with an inspection microscope nearby. PCB assembly service

Board cleaning

Select a residue-removal method compatible with the assembly.

Read the guide ↗
Close view of a masked PCB being cleaned and coated with precision nozzles. PCB assembly service

Conformal coating

Define coating chemistry, sides, thickness and keep-outs.

Read the guide ↗
Macro view of a stencil, paste bead and squeegee over fine-pitch PCB pads. PCB assembly service

Special stencil

Control solder-paste deposits for a demanding component mix.

Read the guide ↗
Close view of a PCB being placed in a conductive tray beside protective packaging materials. PCB assembly service

Packaging

Protect finished assemblies from ESD, moisture and transit damage.

Read the guide ↗
Panelized PCBs with edge rails held in a fixture during controlled depaneling. PCB assembly service

Depanel before delivery

Choose whether rails and array breakaways are removed before shipment.

Read the guide ↗
Macro view of a stencil, paste jar and controlled solder-paste bead over PCB apertures. PCB assembly service

Solder paste

Match alloy and reflow temperature to the board and components.

Read the guide ↗
Compact macro view of three flying probes contacting copper PCB pads. PCB assembly service

Flying probe test

Check accessible circuit nodes without a dedicated fixture.

Read the guide ↗
Compact view of an assembled PCB moving through an inert-atmosphere reflow zone. PCB assembly service

Nitrogen reflow soldering

Use controlled atmosphere when process evidence justifies it.

Read the guide ↗
Compact powered PCB functional test visual with a guarded fixture and indicator light. PCB assembly service

Function test

Verify defined powered behavior with a safe controlled procedure.

Read the guide ↗
Compact PCB assembly documentation visual with blank note card and drawing. PCB assembly service

Assembly remark

Capture one concise assembly requirement not covered elsewhere.

Read the guide ↗
Compact macro view of an amber flex circuit bending around a cylindrical mandrel. Flex and specialised materials

Substrate type

Choose the dielectric construction that carries the flex-circuit copper.

Read the guide ↗
Macro view of copper traces bending into a reinforced flexible circuit connector Flex and specialised materials

Copper type

Match foil ductility and surface profile to bending and signal needs.

Read the guide ↗
Macro view of a flexible circuit coverlay over copper traces near connector pads Flex and specialised materials

Coverlay thickness

Coordinate polyimide, adhesive, copper and pad openings.

Read the guide ↗
Compact three-way PCB stack-up cross-section comparison Stack-up engineering

Stack-up type

Choose the lamination arrangement that supports the design.

Read the guide ↗
Compact exploded PCB layer stack with copper, dielectric and plated through-hole Stack-up engineering

Layer stack-up

Define copper, dielectric materials and thicknesses in order.

Read the guide ↗
Compact PCB beside separated layer films and a blank outline sheet on a fixture Design data

EDA software

Prepare neutral fabrication outputs with correct units and origins.

Read the guide ↗
Macro view of a stiffened flex connector and its free flexible tail. Flex mechanics

Stiffener

Reinforce connector, component or mounting zones deliberately.

Read the guide ↗
Close view of a partial metallic shield on a flexible circuit with a conductive contact. Flex signal integrity

EMI shielding film

Add a grounded shielding layer with defined openings and sides.

Read the guide ↗
Macro view of a router bit following a PCB outline with a finished edge nearby. Flex mechanics

Cutting method

Select outline formation from tolerance and edge-quality needs.

Read the guide ↗
Macro view of a printing head applying white marking to a stiffener zone. Flex documentation

Silkscreen on stiffener

Place readable markings on a reinforced flex region.

Read the guide ↗
Close view of a metallic shield, copper ground pad and conductive flex contact. Flex signal integrity

Grounding

Define how shielding and conductive structures reach reference.

Read the guide ↗
Compact comparison of flexible connector supports with different polyimide thicknesses. Flex mechanics

Polyimide stiffener thickness

Balance local support with the intended connector thickness.

Read the guide ↗
Macro view of a flex circuit entering a connector supported by a thick FR-4 stiffener Flex mechanics

FR-4 stiffener thickness

Create rigid local support with a controlled total build.

Read the guide ↗
Compact technical view of a supported flex circuit and rigid metal transition Flex mechanics

Stainless-steel stiffener thickness

Use thin high-stiffness reinforcement with explicit isolation.

Read the guide ↗
Compact technical view of PCB support geometry and copper transition Flex installation

Adhesive tape thickness

Set installation stand-off and bonding compliance.

Read the guide ↗
Compact view of flex circuits with support tabs and connector ends Flex handling

Polyimide stiffener lift tab

Add a graspable handling feature without disturbing the bend zone.

Read the guide ↗
Compact flex PCB FR-4 handling-tab view Flex handling

FR-4 stiffener lift tab

Define a rigid handling extension and its removal method.

Read the guide ↗
Compact metal stiffener handling-tab view Flex handling

Stainless-steel stiffener lift tab

Control a thin rigid tab, its edges and electrical isolation.

Read the guide ↗
Compact flexible-circuit pull-tab view Flex installation

Adhesive tape pull tab

Expose a liner edge for predictable clean installation.

Read the guide ↗
Compact gold finger edge view Flex connectors

Gold-finger thickness

Match the reinforced contact region to the mating connector.

Read the guide ↗
Compact thermal contrast between laminate and metal-core PCB constructions Metal-core materials

Thermal conductivity

Use the complete through-board thermal path, not one number.

Read the guide ↗
Compact high-voltage isolation geometry Metal-core materials

Breakdown voltage

Coordinate dielectric withstand with safety spacing and test.

Read the guide ↗
Compact multilayer copper structure Metal-core materials

Copper structure

Choose the conductive arrangement for current and heat spreading.

Read the guide ↗
Compact PCB backdrilling cutaway showing a long stub and a controlled shortened barrel High-speed PCB

Backdrill

Remove unused via stub length from a controlled channel.

Read the guide ↗
Compact PCB cutaway showing compliant press-fit pin deformation inside a plated hole Mechanical interconnect

Press-fit hole

Match finished hole and plating to the compliant-pin system.

Read the guide ↗
Compact PCB stack-up and via view Stack-up engineering

Specify stack-up

Lock a construction when performance depends on it.

Read the guide ↗
Compact PCB impedance coupon with a probe and blank waveform instrument Signal integrity

Impedance test report

Record coupon measurements against controlled-impedance targets.

Read the guide ↗
Compact comparison of conventional and build-up HDI PCB cross-sections HDI PCB

HDI structure

Define sequential lamination and microvia build-up complexity.

Read the guide ↗
WhatsApp