Single Layer Flex PCB meaning

Flex PCB is a high reliability PCB board made from polyimide or polyester film. Flex PCB has high wiring density, light weight, thin thickness, good bending characteristics. Today to introduce you to the single layer flex PCB.

Single Layer Flex PCB production cost is lower. When the electrical performance requirements are not high, we can use a single layer flex PCB. A single layer flex PCB has a chemically etched conductive pattern. The conductive pattern layer on the surface of the flex PCB insulating substrate is a calendered copper foil. Insulating substrates for flexible assembly may be polyimide (Kapton), polyethylene terephthalate (PET), aramide-fibre paper (Nomex) and polyvinyl chloride (PVC). Single Layer Flex PCB is the selection of industry high-quality collagen-free material production and processing, the surface copper foil adopts standard copper thickness, the selection of high-quality covering film, has outstanding dielectric properties, mechanical properties, radiation resistance at high temperature, suitable for most electronic products.

Single Layer Flex PCB structure

Single layer Flex PCBS are the most basic type of Flex PCB, they consist of a flexible dielectric film laminated to a single sheet of copper, which is then chemically etched into the copper layer according to a specified circuit pattern design. The Single layer Flex PCB design consists of a single conductive copper layer that can be bonded between two insulating layers, or constructed from a polyimide insulating layer and uncovered sides, and then the inner copper layer goes through a chemical etching process to produce the circuit design.  The Single layer flex PCB design supports inclusion of components, connectors, pins, and stiffener plates. Some single layer flex PCBS feature a dual channel design that accesses conductive materials from both sides of the circuit. The dual-channel design feature of the PCB requires flexible PCBS and dedicated layers in order to provide a channel for a single copper layer through the polyimide layer of the substrate.

Single Layer Flex PCB proofing precautions

Single Layer Flex PCB proofing refers to the trial production of flexible circuit boards before mass production. It usually refers to the process of sending the electronic products to the flex pcb manufacturers for processing after the design is completed. Single Layer Flex PCB proofing matters should be carefully selected, electrical inspection, signal integrity layout, and communication with customers in advance.

Single Layer Flex PCB proofing time

Single Layer Flex PCB proofing is divided into normal proofing and urgent proofing. For the urgent proofing of Flex PCB files provided by the customer, professionals are required to follow up the production process and progress. From the opening to the packaging and shipping of the last process, there are about 20-30 production processes. The normal sampling time of Single Layer Flex PCB is 6-7 days, and the expedited sampling time of Single Layer Flex PCB is 3-4 days. The time of expedited proofing of Single Layer Flex PCB is usually calculated from the confirmation of production file EQ designed by the engineer.

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