Flexible flat cable (FFC) yɛ flat signal transmission cable a wɔde di dwuma kɛse wɔ ɛlɛtrɔnik mfiri, kar ɛlɛtrɔnik, nnuruyɛ mfiri, ne nnwuma afoforo mu. Mfaso titiriw a ɛwɔ so ne sɛnea ɛyɛ mmerɛw, sɛnea wɔayɛ no hare, ne sɛnea wotumi de ho to so kɛse, na ne nyinaa fi nneɛma soronko a wɔde ayɛ no titiriw.
Nneɛma titiriw a wɔde yɛ FFC ne conductor, insulation layer, ne sheath. Wɔtaa de kɔbere a ɛyɛ electrolytic a ɛho tew kɛse anaa kɔbere a wɔde tin ayɛ na ɛyɛ conductor no, a abien no nyinaa ma conductivity ne flexibility a ɛkyɛn so. Electrolytic kɔbere wɔ conductivity a ɛbɛn 100% IACS (International Annealed Copper Standard), hwɛ hu sɛ sɛnkyerɛnne kwan so nkrasɛm a ɛyera sua. Kɔbere a wɔde ahyɛ tin mu ma ɛko tia oxidation ne solderability a ɛkorɔn, na ɛma ɛfata ma dwumadie a ɛhia sɛ wɔtaa de plug ne plugging anaasɛ high{5}}temperature environments. FFC ahorow bi a ɛkorɔn-san nso de kɔbere krataa a ɛyɛ tratraa, a wɔnam kalenda nhyehyɛe so yɛ, di dwuma de tew nhama no mu duru so bio na ɛma benkum a ɛtra hɔ kyɛ no tu mpɔn.
Insulation layer no yɛ ade titiriw a ɛwɔ FFC mu na wɔtaa de polyimide (PI) anaa polyester (PET) film na ɛyɛ. Mprempren polyimide ne ade a wɔtaa de siw mframa ano esiane ɔhyew a ɛko tia kɛse yiye (ɛboa ɔhyew a wɔde yɛ adwuma bere tenten a ɛboro digrii 200 ), mfiri ahoɔden, ne nnuru a ɛyɛ den nti, na ɛma ɛfata ma mmeae a ɛyɛ den a wɔde yɛ adwuma. Sɛ yɛde toto ho a, polyester sini no ma ɛho ka sua nanso ɛko tia ɔhyew a ɛba fam kakra (mpɛn pii no ɛba fam sen digrii 120 ), na ɛma ɛfata ma nneɛma a wɔde di dwuma a ɔhyew ho ahwehwɛde a emu yɛ den pii. Ɛnyɛ sɛ saa nneɛma a wɔde yɛ polymer yi ma anyinam ahoɔden a wotumi de ho to so nko, na mmom ɛbɔ nhama no ho ban fi abɔnten so nsɛe ne nsɛe ho.
Bio nso, FFC ahorow bi de akyi aduru bi te sɛ polyvinyl chloride (PVC) anaa thermoplastic elastomer (TPE) ka ho, na ama abrabɔ a ɛko tia ne nea ɛko tia no yɛ kɛse. PVC sheathing ma wotumi yɛ nsakraeɛ a ɛkyɛn so na ɛho ka sua, berɛ a TPE fata kɛseɛ ma dwumadie a ɛhwehwɛ sɛ wɔyɛ nneɛma a atwa yɛn ho ahyia ho adamfofa anaasɛ wɔyɛ nsakraeɛ kɛseɛ.
Sɛ yɛbɛbɔ no mua a, nneɛma a wɔpaw ma nhama a ɛyɛ tratraa a ɛyɛ mmerɛw no nya wɔn adwumayɛ so nkɛntɛnso tẽẽ. Conductor no na ɛkyerɛ anyinam ahoɔden a ɛkɔ, insulation layer no hwɛ hu sɛ sɛnkyerɛnne no gyina pintinn na ɔhyew a ɛko tia, na sheath no ma ne nyinaa kyɛ. Ɛnam sɛ wɔrekɔ so ayɛ ɛlɛtrɔnik mfiri a ɛyɛ tratraa na emu yɛ hare nti, daakye FFC nneɛma bɛkɔ so akɔ so akɔ soro akɔ ɔhyew a ɛkɔ soro, ultra-thinness, ne nneɛma a atwa yɛn ho ahyia ho adamfofa su.