Omenala 2-oyi akwa PTFE PCB

N'ikwu okwu n'ozuzu, enwere ike ịkọwa ugboro dị elu dị ka ugboro karịa 1GHz. Ugbu a, a na-eji ihe PTFE eme ihe na nrụpụta PCB dị elu, a na-akpọkwa ya Teflon, nke ugboro na-adịkarị karịa 5GHz. E wezụga nke ahụ, enwere ike iji mkpụrụ FR4 ma ọ bụ PPO mee ihe ugboro ugboro n'etiti 1GHz ~ 10GHz. Ihe atọ ndị a dị elu ugboro ugboro nwere ọdịiche dị n'okpuru:

Banyere ọnụ ahịa laminate nke FR4, PPO na Teflon, FR4 bụ nke dị ọnụ ala, ebe Teflon bụ nke kachasị ọnụ. N'ihe gbasara DK, DF, nnabata mmiri na njirimara ugboro ugboro, Teflon kacha mma. Mgbe ngwa ngwaahịa chọrọ ugboro karịa 10GHz, naanị anyị nwere ike họrọ mkpụrụ osisi Teflon PCB iji rụpụta. Ịrụ ọrụ nke Teflon dị nnọọ mma karịa ihe ndị ọzọ, Otú ọ dị, Teflon substrate nwere mwepu nke ọnụ ahịa dị elu na nnukwu ihe na-eguzogide okpomọkụ. Iji meziwanye isi ike PTFE na ọrụ ihe onwunwe na-eguzogide okpomọkụ, ọnụ ọgụgụ dị ukwuu nke SiO2 ma ọ bụ eriri fiber dị ka ihe na-ejuputa. N'aka nke ọzọ, n'ihi molecule inertia nke ihe PTFE, nke na-adịghị mfe ijikọta ya na foil ọla kọpa, ya mere, ọ dị mkpa ime ọgwụgwọ elu pụrụ iche n'akụkụ njikọ. Banyere ọgwụgwọ nchikota elu, na-ejikarị etching kemịkal n'elu PTFE ma ọ bụ plasma etching gbakwunyere nhịahụ elu ma ọ bụ tinye otu ihe nkiri nrapado n'etiti PTFE na foil ọla kọpa, mana ndị a nwere ike imetụta arụmọrụ dielectric.