FPC

Flex PCB / Flexible PCB

Flexible circuit board, also known as flex circuit board, is a special type of printed circuit board where the board has at least a portion which is bendable. Typical use case of flex circuits is referred to as FFC (flexible flat cable) and is used as replacement of cable wires and connectors, in which case the flex circuit is designed without electronic components. Other common use includes components assembled on the flex circuit such as led strip and LCD panel interface.

The electronic circuit is designed on flexible plastic substrate, usually polyimide film for its high heat resistance which makes is suitable for solder mounting components. In some cases polyester film may used as substrate material, where heat resistance is not needed and no components are soldered on the board. Instead, the board is printed with an industrial printer capable of dispensing conductive ink such as silver ink or carbon ink onto the polyester substrate. Examples of use are touch sensors in computer keyboards for key press detection.

FPC APPLICATION

Flex circuits are often used as connectors in various applications where flexibility, space savings, or production constraints limit the serviceability of rigid circuit boards or hand wiring. A common application of flex circuits is in computer keyboards; most keyboards use flex circuits for the switch matrix.

In LCD fabrication, glass is used as a substrate. If thin flexible plastic or metal foil is used as the substrate instead, the entire system can be flexible, as the film deposited on top of the substrate is usually very thin, on the order of a few micrometres. Our FPC capabilities.

Capabilities

Sort	Item	Normal capability	Specific capability
Layer count	Rigid-flex PCB	2 ～14	2 ～24
Layer count	Flex PCB	1 ～10	1 ～12
Board	Min. Thickness	0.08 +/- 0.03mm	0.05 +/- 0.03mm
	Max. Thickness	6mm	8mm
	Max. Size	485mm * 1000mm	485mm * 1500mm
Hole & Slot	Min.Hole	0.15mm	0.05mm
	Min.Slot Hole	0.6mm	0.5mm
	Aspect Ratio	10:01	12:01
Trace	Min.Width / Space	0.05 / 0.05mm	0.025 / 0.025mm
Tolerance	Trace W / S	± 0.03mm (W/S≥0.3mm:±10%)	± 0.02mm (W/S≥0.2mm:±10%)
	Hole to hole	± 0.075mm	± 0.05mm
	Hole Dimension	± 0.075mm	± 0.05mm
	Impedance	0 ≤ Value ≤ 50Ω : ± 5Ω 50Ω ≤ Value : ± 10%Ω
Material	Basefilm Specification	PI : 3mil 2mil 1mil 0.8mil 0.5mil
	Basefilm Specification	ED&RA Cu : 2OZ 1OZ 1 / 2OZ 1 / 3OZ 1 / 4OZ
	Basefilm Main supplier	Shengyi / Taiflex / Dupont / Doosan / Thinflex
	Coverlay Specification	PI : 2mil 1mil 0.5mil
	LPI Color	Green / Yellow / White / Black / Blue / Red
	PI Stiffener	T : 25um ～250um
	FR4 Stiffener	T : 100um ～2000um
	SUS Stiffener	T : 100um ～400um
	AL Stiffener	T : 100um ～1600um
	Tape	3M / Tesa / Nitto
	EMI shielding	Silver film / Copper / Silver ink
Surface finish	OSP	0.1 - 0.3um
	HASL	Sn : 5um - 40um
	HASL(Leed free)	Sn : 5um - 40um
	ENEPIG	Ni : 1.0 - 6.0um Ba : 0.015-0.10um Au : 0.015 - 0.10um
	Plating hard gold	Ni : 1.0 - 6.0um Au : 0.02um - 1um
	Flash gold	Ni : 1.0 - 6.0um Au : 0.02um - 0.1um
	ENIG	Ni : 1.0 - 6.0um Au : 0.015um - 0.10um
	Immesion silver	Ag : 0.1 - 0.3um
	Plating Tin	Sn : 5um - 35um
SMT	Type	0.3mm pitch Connectors
		0.4mm pitch BGA / QFP / QFN
		0201 Component

Auspi has worldwide support center, we have great work with them, and they will be our long-term supplier, I would definitely recommend

I would like to express my gratitude to Auspi for their work, all orders are always completed quickly and with a proper level of feedback! It is very pleasant to work with such professionals, we will continue to order from you guys, you are the best.

We have a great Partnership with Auspi, they are fast response, most reliable, Most importantly, we are in business relationship for decades now.

HOW AUSPI HELP YOU ?

With over 20 years of experience, Auspi has firmly established itself as a leader in client satisfaction across diverse industries. Our strategically positioned facilities in the Americas, Europe, and Asia allow us to effectively meet both your geographical and cost requirements. We carefully balance quality and affordability, ensuring that every penny you invest delivers exceptional value.

In the fast-evolving and competitive electronics industry, we remain agile and innovative. By continuously expanding our service offerings, we ensure that we not only meet but exceed the expectations of our valued partners. Your success is our priority, and we are dedicated to staying at the cutting edge of industry advancements to support your growth.

01/ Reliability

Full Compliance with NDA Requirement;
Strictly Follow Customer’s Original Design;
Good Quality Performance & Keep Improving;
Honoring Our Commitments

02/ Expertise

Full Manufacturing Process Coverage;
Decades Focusing & Rich Experience;
Turn Key & One-Stop Solution
Components Sourcing & SCM

03/ Fast Response

8 hours RFQ Reply & Online Chat
24 Hours Feedback on Customer Complain
72 Hours PCB Bear Board Sampling;
2-3 Weeks PCBA Prototyping (TurnKey BoM)

04/ Flexibility & Quickturn

NO Minimum Order(MoQ) Requirement;
Wide Rage of Components Inventory;
Expedite Services;
Diversity, Equity & Inclusion

05/ Worldwide Supply

8 Branches Worldwide; (see contact us)
4 Manufacturing Bases Located in China, Czech Republic, Mexico & Malaysia;
Multi-sites Phone Access & Local Supporting

06/ Reasonable Cost

Transparent, BoM Cost Breakdown;
Live Stock and Pricing Data;
Alternative Scenarios Proposal
Competitive Pricing

AUSPI

FPC