Flexible PCB Sourcing From China
1 resources tagged with "Flexible Pcb"
Flexible PCB (FPC) sourcing from China covers both the flex circuits themselves and the FPC/FFC connectors that terminate them, with pitches commonly between 0.5mm and 1.25mm. Polyimide single- and double-layer flex is the workhorse for camera modules, displays, and wearables, where bend radius and connector actuation cycle life drive most field failures. Chinese flex-circuit shops are competitive, but the recurring pitfall is delamination or cracked traces at the bend zone when the stack-up or coverlay was wrong.
When you source flexible PCB you are buying a mechanical part as much as an electrical one, so the bend radius, copper rolling direction, and connector lock type (ZIF vs LIF) matter as much as the layer count. A common mistake is matching the FPC tail thickness to the wrong connector, which causes intermittent contact after a few insertion cycles.
Wiki (1)
FAQ
What pitch and connector type should I specify for an FPC?
Camera and display flex commonly use 0.5mm pitch with ZIF (zero insertion force) connectors for repeated rework; 1.0-1.25mm pitch is typical for power and lower-density flex. The FPC tail thickness must match the connector spec, usually 0.3mm.
What causes flexible PCB to fail in the field?
The most common failures are trace cracking at a too-tight bend radius, coverlay delamination from poor lamination, and intermittent connector contact when the tail thickness or lock type was wrong. Specify minimum bend radius and require a flex-cycle test.
Can Chinese factories do multilayer flex and rigid-flex?
Yes, mid-tier Shenzhen and Pearl River Delta shops handle double-layer and multilayer polyimide flex, with rigid-flex available from more specialized factories at higher cost and longer lead times.
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