PET Flexible PCB: Polyester Circuit Construction

PET film is used in printed and flexible electronics, but a PET circuit must be specified as a complete construction. Material reference.

Polyester Circuit Construction

Distinguish printed conductive inks from copper-on-film circuitry. Do not assume that a polyester circuit can use the same soldering or lamination process as a polyimide flex board. Select the attachment and assembly route together with the film and conductor.

Manufacturing and acceptance checks

Request exact film, conductor, adhesive and protective layers. Define processing temperature, bending, connector geometry and required resistance. Approve a representative circuit after the complete assembly and environmental exposure, keeping material and process records separate from a generic PET-film datasheet.

Compare related options

• Flexible PCB
• PET

Reference and scope

Mylar Specialty Films: polyester films for flexible electronics provides material or specification background. The checks above are purchasing guidance; final acceptance values must come from the agreed grade, product specification and condition.

Send a drawing and material requirements for review. Include quantity, critical dimensions and the inspection evidence required with delivery.