GPS 2 Layer Flex Pcb Stackup 0.5oz-3oz Copper Flex Circuit Design

2 Layer GPS Flex Pcb Stackup Flex Circuit Design Service

Technical parameters

Model: ONE02C00360A

Number of layers: 2 layers

Plate thickness: 0.14mm

Size: 88 * 58.68mm

Plate: double-sided adhesive free calendered copper foil

Board copper thickness: 20um

Copper thickness inside the hole: 9um

Line width and distance: 0.075mm

Minimum aperture: 0.2mm

Surface treatment: sinking gold ≥ 1u“

Product use: GPS soft board

Basic structure

Copper Film

Copper foil: Basically divided into electrolytic copper and rolled copper The common thicknesses are 1oz, 1/2oz, and 1/3 oz

Substrate film: There are two common thicknesses: 1mil and 1/2mil

Adhesive (adhesive): The thickness is determined according to customer requirements

Cover Film

Cover film protective film: used for surface insulation The common thicknesses are 1 mil and 1/2 mil

Adhesive (adhesive): The thickness is determined according to customer requirements

Release paper: To avoid adhesive adhering to foreign objects before pressing; Convenient for homework

PI Stiffener Film

Reinforcement plate: It enhances the mechanical strength of FPC and facilitates surface installation operations. Common thicknesses range from 3mil to 9mil

Adhesive (adhesive): The thickness is determined according to customer requirements

Release paper: Avoid the adhesive from adhering to foreign objects before pressing

EMI: Electromagnetic shielding film, which protects the circuits inside the circuit board from external interference (strong electromagnetic areas or easily disturbed areas).

Single-sided flex PCB circuits

Single-sided flexible circuits have a single conductor layer made of either a metal or conductive (metal filled) polymer on a flexible dielectric film. Component termination features are accessible only from one side. Holes may be formed in the base film to allow component leads to pass through for interconnection, normally by soldering. Single sided flex circuits can be fabricated with or without such protective coatings as cover layers or cover coats, however the use of a protective coating over circuits is the most common practice. The development of surface mounted devices on sputtered conductive films has enabled the production of transparent LED Films, which is used in LED Glass but also in flexible automotive lighting composites

Double-sided flex pcb circuits

Double-sided flex circuits are flex circuits having two conductor layers. These flex circuits can be fabricated with or without plated through holes, though the plated through hole variation is much more common. When constructed without plated through holes and connection features are accessed from one side only, the circuit is defined as a "Type V (5)" according to military specifications. It is not a common practice but it is an option. Because of the plated through hole, terminations for electronic components are provided for on both sides of the circuit, thus allowing components to be placed on either side. Depending on design requirements, double-sided flex circuits can be fabricated with protective coverlayers on one, both or neither side of the completed circuit but are most commonly produced with the protective layer on both sides. One major advantage of this type of substrate is that it allows crossover connections to be made very easy. Many single sided circuits are built on a double sided substrate just because they have one of two crossover connections. An example of this use is the circuit connecting a mousepad to the motherboard of a laptop. All connections on that circuit are located on only one side of the substrate, except a very small crossover connection which uses the second side of the substrate

Multilayer flex pcb circuits

Flex circuits having three or more layers of conductors are known as multilayer flex circuits. Commonly the layers are interconnected by means of plated through holes, though this is not a requirement of the definition for it is possible to provide openings to access lower circuit level features. The layers of the multilayer flex circuit may or may not be continuously laminated together throughout the construction with the obvious exception of the areas occupied by plated through-holes. The practice of discontinuous lamination is common in cases where maximum flexibility is required. This is accomplished by leaving unbonded the areas where flexing or bending is to occur.

Rigid-flex pcb circuits

Rigid-flex circuits are a hybrid construction flex circuit consisting of rigid and flexible substrates which are laminated together into a single structure. Rigid-flex circuits should not be confused with rigidized flex constructions, which are simply flex circuits to which a stiffener is attached to support the weight of the electronic components locally. A rigidized or stiffened flex circuit can have one or more conductor layers. Thus while the two terms may sound similar, they represent products that are quite different.

The layers of a rigid flex are also normally electrically interconnected by means of plated through holes. Over the years, rigid-flex circuits have enjoyed tremendous popularity among military product designer, however the technology has found increased use in commercial products. While often considered a specialty product for low volume applications because of the challenges, an impressive effort to use the technology was made by Compaq computer in the production of boards for a laptop computer in the 1990s. While the computer's main rigid-flex PCBA did not flex during use, subsequent designs by Compaq utilized rigid-flex circuits for the hinged display cable, passing 10s of 1000s of flexures during testing. By 2013, the use of rigid-flex circuits in consumer laptop computers is now common.

Rigid-flex boards are normally multilayer structures; however, two metal layer constructions are sometimes used.

Flex PCBs offer unique advantages and design possibilities compared to rigid PCBs, making them a popular choice in various industries. However, it's important to work with experienced PCB manufacturers or design engineers who specialize in flex PCBs to ensure the best results.