Ua kaulana nā papa kaapuni paʻi paʻi paʻa (PCB) no ko lākou maʻalahi a me ka lōʻihi i nā ʻano noi uila. Ua ʻike ʻia kēia mau papa no ko lākou hiki ke kū i ke kūlou ʻana a me ke koʻikoʻi torsional me ka mālama ʻana i nā pilina uila hilinaʻi.E nānā hohonu kēia ʻatikala i nā mea i hoʻohana ʻia i nā PCB rigid-flex e loaʻa ai ka ʻike i kā lākou haku mele a me nā waiwai. Ma ka hōʻike ʻana i nā mea e hana ai i nā PCB rigid-flex i kahi hopena ikaika a maʻalahi, hiki iā mākou ke hoʻomaopopo i ke ʻano o kā lākou kōkua ʻana i ka holomua o nā mea uila.
1. Hoomaopopo i kahoʻolālā PCB ʻoʻoleʻa:
ʻO ka PCB paʻa paʻa he papa kaapuni i paʻi ʻia e hoʻohui i nā substrate paʻa a maʻalahi e hana i kahi hale kūʻokoʻa. ʻO kēia hui ʻana e hiki ai i nā papa kaapuni ke hōʻike i ka circuitry ʻekolu-dimensional, e hāʻawi ana i ka maʻalahi o ka hoʻolālā ʻana a me ka hoʻonui ʻana i ka lewa no nā mea uila. ʻO ke ʻano o nā papa rigid-flex he ʻekolu papa nui. ʻO ka papa mua ka papa paʻa, i hana ʻia me kahi mea paʻa e like me FR4 a i ʻole ke kumu metala. Hāʻawi kēia papa i ke kākoʻo a me ke kūpaʻa i ka PCB, e hōʻoiaʻiʻo ana i kona kūpaʻa a me ke kūpaʻa ʻana i ka pilikia mechanical.
ʻO ka papa ʻelua he papa maʻalahi i hana ʻia me nā mea e like me polyimide (PI), polymer crystal liquid (LCP) a i ʻole polyester (PET). ʻAe kēia papa i ka PCB e kūlou, wili a kūlou me ka ʻole o kāna hana uila. He mea koʻikoʻi ka maʻalahi o kēia papa no nā noi e koi ana i ka PCB e hoʻokomo i nā wahi ākea a paʻa paha. ʻO ke kolu o ka papa ʻo ia ka papa hoʻopili, kahi e hoʻopaʻa ai i nā papa paʻa a maʻalahi. Hana ʻia kēia papa me nā mea epoxy a i ʻole acrylic, i koho ʻia no ko lākou hiki ke hāʻawi i kahi paʻa paʻa ma waena o nā papa me ka hāʻawi ʻana i nā waiwai insulation uila maikaʻi. He kuleana koʻikoʻi ka papa adhesive i ka hōʻoia ʻana i ka hilinaʻi a me ke ola lawelawe o nā papa rigid-flex.
Ua koho pono ʻia kēlā me kēia papa i loko o ka ʻōnaehana PCB rigid-flex a hoʻolālā ʻia e hoʻokō i nā koi pono hana mechanical a me ka uila. ʻO kēia ka mea e hiki ai i nā PCB ke hana maikaʻi i ka nui o nā noi, mai nā mea uila uila a i nā mea lapaʻau a me nā ʻōnaehana aerospace.
2. Nā mea i hoʻohana ʻia i nā papa ʻoʻoleʻa:
I ka papa hana paʻa o nā PCB rigid-flex, hoʻohana pinepine ʻia nā mea he nui e hāʻawi i ke kākoʻo kūpono a me ka pololei. Ua koho ponoʻia kēia mau mea ma muli o ko lākou mauʻano kiko'ī a me nā koi hana. ʻO kekahi o nā mea maʻamau i hoʻohana ʻia no nā papa paʻa i nā PCB rigid-flex penei:
A. FR4: ʻO FR4 kahi mea papa paʻa i hoʻohana nui ʻia i nā PCB. He laminate epoxy i hoʻoikaika ʻia i ke aniani me nā waiwai wela a me nā mea mechanical. He ʻoʻoleʻa kiʻekiʻe ʻo FR4, haʻahaʻa haʻahaʻa wai a me ke kūpaʻa kemika maikaʻi. Hana maikaʻi kēia mau waiwai ma ke ʻano he papa paʻa e like me ka hāʻawi ʻana i ka pono kūpono a me ka paʻa i ka PCB.
B. Polyimide (PI): ʻO ka Polyimide kahi mea wela hiki ke hoʻohana pinepine ʻia i nā papa paʻa paʻa ma muli o kona kūpaʻa wela kiʻekiʻe. Ua ʻike ʻia ʻo Polyimide no kāna mau waiwai insulation uila maikaʻi loa a me ka paʻa ʻana o ka mīkini, kūpono ia no ka hoʻohana ʻana i nā papa paʻa i nā PCB. Mālama ʻo ia i kona ʻano mechanical a me ka uila ʻoiai ke ʻike ʻia i nā wela wela, e kūpono ana i nā ʻano hana like ʻole.
C. Metal Core: I kekahi mau hihia, ke koi ʻia ka hoʻokele wela maikaʻi, hiki ke hoʻohana ʻia nā mea metala kumu e like me ke alumini a i ʻole ke keleawe ma ke ʻano he papa paʻa i nā PCB paʻa. Loaʻa i kēia mau mea i ka conductivity thermal maikaʻi loa a hiki ke hoʻopau pono i ka wela i hana ʻia e nā kaapuni. Ma ka hoʻohana ʻana i ke kumu metala, hiki i nā papa paʻa paʻa ke hoʻokele pono i ka wela a pale i ka wela, e hōʻoia ana i ka hilinaʻi kaapuni a me ka hana.
Loaʻa i kēlā me kēia o kēia mau mea pono ponoʻī a koho ʻia ma muli o nā koi kikoʻī o ka hoʻolālā PCB. ʻO nā mea e like me ka mahana hana, ke koʻikoʻi mechanical a me nā mana hoʻokele wela e pono ai ke kuleana nui i ka hoʻoholo ʻana i nā mea kūpono no ka hoʻohui ʻana i nā papa paʻa PCB paʻa.
He mea nui e hoʻomaopopo i ke koho ʻana o nā mea no nā papa paʻa i nā PCB rigid-flex he mea koʻikoʻi o ke kaʻina hana. ʻO ke koho waiwai kūpono e hōʻoiaʻiʻo i ka kūpaʻa o ke kūkulu ʻana, ka hoʻokele wela a me ka hilinaʻi holoʻokoʻa o ka PCB. Ma ke koho ʻana i nā mea pono, hiki i nā mea hoʻolālā ke hana i nā PCB rigid-flex e hoʻokō i nā koi koʻikoʻi o nā ʻoihana like ʻole, me ka automotive, aerospace, medical, and telecommunications.
3. ʻO nā mea i hoʻohana ʻia i ka papa maʻalahi:
ʻO nā papa maʻalahi i nā PCB paʻa paʻa e hoʻomaʻamaʻa i nā hiʻohiʻona kulou a me ka pelu ʻana o kēia mau papa. ʻO ka mea i hoʻohana ʻia no ka papa maʻalahi e hōʻike i ke kiʻekiʻe kiʻekiʻe, elasticity a me ke kūpaʻa ʻana i ke kulou mau ʻana. ʻO nā mea maʻamau i hoʻohana ʻia no nā papa maʻalahi:
A. Polyimide (PI): E like me ka mea i ʻōlelo ʻia ma mua, ʻo ka polyimide kahi mea maʻalahi e lawelawe i nā kumu ʻelua i nā PCB paʻa. Ma ka papa flex, hiki i ka papa ke kulou a kulou me ka nalowale ʻole o kona mau waiwai uila.
B. Liquid Crystal Polymer (LCP): ʻO ka LCP kahi mea thermoplastic hana kiʻekiʻe i ʻike ʻia no kāna mau ʻano mechanical maikaʻi loa a me ke kūpaʻa ʻana i nā wela wela. Hāʻawi ia i ka hoʻololi maikaʻi, ke kūpaʻa dimensional a me ka pale ʻana i ka makū no nā hoʻolālā PCB rigid-flex.
C. Polyester (PET): ʻO ka polyester kahi mea haʻahaʻa haʻahaʻa, māmā me ka maʻalahi a me nā waiwai insulating. Hoʻohana maʻamau ia no nā PCB rigid-flex kahi e koʻikoʻi ai ke kumu kūʻai a me ka hiki ke kulou haʻahaʻa.
D. Polyimide (PI): ʻO ka Polyimide kahi mea maʻamau i hoʻohana ʻia i nā papa maʻalahi PCB paʻa. Loaʻa iā ia ka hoʻololi maikaʻi, ke kūpaʻa wela kiʻekiʻe a me nā waiwai insulation uila maikaʻi. Hiki ke laminated maʻalahi ke kiʻiʻoniʻoni Polyimide, etched a hoʻopaʻa ʻia i nā papa ʻē aʻe o ka PCB. Hiki iā lākou ke kū i ka piʻo pinepine ʻana me ka nalowale ʻole o ko lākou mau waiwai uila, e hoʻolilo iā lākou i mea kūpono no nā papa maʻalahi.
E. Liquid crystal polymer (LCP): ʻO LCP kahi mea thermoplastic hana kiʻekiʻe i hoʻohana nui ʻia ma ke ʻano he papa maʻalahi i nā PCB paʻa. Loaʻa iā ia nā waiwai mechanical maikaʻi loa, me ka loli kiʻekiʻe, ke kūpaʻa dimensional a me ke kūpaʻa maikaʻi loa i nā wela wela. ʻO nā kiʻiʻoniʻoni LCP he haʻahaʻa haʻahaʻa haʻahaʻa a kūpono i nā noi ma nā wahi haʻahaʻa. Loaʻa iā lākou ke kūpaʻa kemika maikaʻi a me ka mau dielectric haʻahaʻa, e hōʻoia ana i ka hana pono i nā kūlana paʻakikī.
F. Polyester (PET): ʻO ka polyester, ka mea i kapa ʻia ʻo polyethylene terephthalate (PET), he mea māmā a me ke kumu kūʻai i hoʻohana ʻia i nā papa maʻalahi o nā PCB paʻa. Loaʻa i ka kiʻi ʻoniʻoni PET ka maʻalahi, ka ikaika tensile kiʻekiʻe a me ke kūpaʻa wela maikaʻi. Loaʻa i kēia mau kiʻiʻoniʻoni ka haʻahaʻa haʻahaʻa haʻahaʻa a loaʻa nā waiwai insulation uila maikaʻi. Ua koho pinepine ʻia ʻo PET inā ʻo ke kumukūʻai kūpono a me ka hiki ke kulou haʻahaʻa ke kumu nui o ka hoʻolālā PCB.
G. Polyetherimide (PEI): ʻO PEI kahi thermoplastic hana kiʻekiʻe i hoʻohana ʻia no ka papa maʻalahi o nā PCB paʻa paʻa. Loaʻa iā ia nā waiwai mechanical maikaʻi loa, me ka hoʻololi kiʻekiʻe, ke kūpaʻa dimensional a me ke kū'ē i nā wela wela. He haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ka kiʻi ʻoniʻoni PEI a me ke kūpaʻa kemika maikaʻi. Loaʻa iā lākou ka ikaika dielectric kiʻekiʻe a me nā waiwai insulating uila, e kūpono iā lākou no nā noi koi.
H. Polyethylene naphthalate (PEN): ʻO PEN he mea wela a hiki ke hoʻohana ʻia no ka papa maʻalahi o nā PCB paʻa. Loaʻa iā ia ke kūpaʻa wela maikaʻi, ka haʻahaʻa haʻahaʻa haʻahaʻa a me nā waiwai mechanical maikaʻi loa. Kūleʻa loa nā kiʻi ʻoniʻoni PEN i ka radiation UV a me nā kemika. Loaʻa iā lākou kahi mau dielectric haʻahaʻa a maikaʻi loa nā waiwai insulation uila. Hiki i ke kiʻi ʻoniʻoni PEN ke kū i ka piʻo pinepine ʻana a me ka pelu ʻana me ka ʻole o ka hoʻopilikia ʻana i kona mau waiwai uila.
I. Polydimethylsiloxane (PDMS): ʻO PDMS kahi mea elastic hiki ke hoʻohana ʻia no ka papa maʻalahi o nā PCB i hui pū ʻia. Loaʻa iā ia nā waiwai mechanical maikaʻi loa, e pili ana i ka loli kiʻekiʻe, elasticity a me ke kūʻē ʻana i ke kulou mau ʻana. Loaʻa i nā kiʻiʻoniʻoni PDMS ke kūpaʻa wela maikaʻi a me nā waiwai insulation uila. Hoʻohana maʻamau ʻia ka PDMS i nā noi e koi ana i nā mea palupalu, ʻōniʻoniʻo a ʻoluʻolu hoʻi, e like me nā mea uila hiki ke hoʻohana ʻia a me nā mea lapaʻau.
Loaʻa i kēlā me kēia mau mea pono kona mau pono ponoʻī, a ʻo ke koho ʻana i nā mea flex layer e pili ana i nā koi kikoʻī o ka hoʻolālā PCB. ʻO nā mea e like me ka maʻalahi, ke kūpaʻa wela, ka pale ʻana i ka wai, ka maikaʻi o ke kumukūʻai a me ka hiki ke kulou ke hana koʻikoʻi i ka hoʻoholo ʻana i ka mea kūpono no ka papa maʻalahi i kahi PCB rigid-flex. ʻO ka noʻonoʻo pono i kēia mau mea e hōʻoia i ka hilinaʻi PCB, ka lōʻihi a me ka hana ma nā ʻano noi a me nā ʻoihana.
4. Adhesive mea i loko o oolea-flex PCBs:
I mea e hoʻopaʻa ai i nā papa paʻa a me ka maʻalahi, hoʻohana ʻia nā mea adhesive i ka hana PCB rigid-flex. ʻO kēia mau mea hoʻopaʻa paʻa e hōʻoia i kahi pilina uila hilinaʻi ma waena o nā papa a hāʻawi i ke kākoʻo mechanical pono. ʻElua mau mea hoʻopaʻa paʻa maʻamau:
A. Epoxy Resin: Epoxy resin-based adhesives ua hoʻohana nui ʻia no ko lākou ikaika hoʻopaʻa kiʻekiʻe a me nā waiwai insulation uila maikaʻi loa. Hāʻawi lākou i ka paʻa wela maikaʻi a hoʻonui i ka rigidity holoʻokoʻa o ka papa kaapuni.
b. Acrylic: Ua makemake ʻia nā mea hoʻopili i hoʻopaʻa ʻia i ka Acrylic i nā noi kahi e koʻikoʻi ai ka maʻalahi a me ka pale ʻana i ka wai. Loaʻa i kēia mau mea hoʻopili i ka ikaika paʻa maikaʻi a me nā manawa hoʻoponopono pōkole ma mua o nā epoxies.
C. Silicone: Hoʻohana maʻamau ʻia nā mea hoʻopili i hoʻopaʻa ʻia i ka Silicone i nā papa paʻa paʻa ma muli o ko lākou maʻalahi, kūpaʻa wela maikaʻi loa, a me ke kūpaʻa ʻana i ka makū a me nā kemika. Hiki i nā mea hoʻopili Silicone ke kū i kahi ākea ākea, e kūpono iā lākou no nā noi e koi ana i ka maʻalahi a me ke kūpaʻa wela kiʻekiʻe. Hāʻawi lākou i ka hoʻopaʻa paʻa ʻana ma waena o nā papa paʻa a paʻa i ka mālama ʻana i nā pono uila e pono ai.
D. Polyurethane: Hāʻawi nā polyurethane adhesives i ke kaulike o ka maʻalahi a me ka ikaika paʻa i nā PCB paʻa. Loaʻa iā lākou ka hoʻopili maikaʻi ʻana i nā substrate like ʻole a hāʻawi i ke kūpaʻa maikaʻi loa i nā kemika a me nā loli wela. Hoʻopili pū nā polyurethane adhesives i ka vibration a hāʻawi i ka paʻa mechanical i ka PCB. Hoʻohana pinepine ʻia lākou i nā noi e pono ai ka maʻalahi a me ka paʻa.
E. UV Curable Resin: ʻO UV curable resin he mea hoʻopili e ho'ōla wikiwiki i ka wā e ʻike ʻia ai i ke kukui ultraviolet (UV). Hāʻawi lākou i ka hoʻopaʻa paʻa wikiwiki a me ka manawa curing, e kūpono iā lākou no ka hana kiʻekiʻe. Hāʻawi nā resins UV-curable i ka hoʻopili maikaʻi ʻana i nā ʻano mea like ʻole, me nā substrates paʻa a maʻalahi. Hōʻike pū lākou i ke kūpaʻa kemika maikaʻi a me nā waiwai uila. Hoʻohana pinepine ʻia nā resins UV-curable no nā PCB rigid-flex, kahi e koʻikoʻi ai nā manawa hana wikiwiki a me ka paʻa pono.
F. Paʻa Paʻa Paʻa (PSA): ʻO PSA kahi mea hoʻopili e hana i kahi paʻa ke hoʻohana ʻia ke kaomi. Hāʻawi lākou i kahi hopena hoʻopaʻa maʻalahi a maʻalahi no nā PCB paʻa-flex. Hāʻawi ʻo PSA i ka hoʻopili maikaʻi ʻana i nā ʻano ʻano like ʻole, me nā substrate paʻa a maʻalahi. Hiki iā lākou ke hoʻonohonoho hou i ka wā o ka hui ʻana a hiki ke wehe maʻalahi inā pono. Hāʻawi pū ʻo PSA i ka loli maikaʻi a me ke kūpaʻa, e kūpono ana i nā noi e koi ana i ka wili a me ke kulou ʻana o PCB.
Ka hopena:
ʻO nā PCB rigid-flex he ʻāpana koʻikoʻi o nā mea uila o kēia wā, e ʻae ana i nā hoʻolālā kaapuni paʻakikī i nā pūʻolo paʻa a me nā ʻano like ʻole. No nā mea ʻenekinia a me nā mea hoʻolālā e manaʻo nei e hoʻokō i ka hana a me ka hilinaʻi o nā huahana uila, he mea nui e hoʻomaopopo i nā mea i hoʻohana ʻia i kā lākou hana. Hoʻopili kēia ʻatikala i nā mea i hoʻohana mau ʻia i ka hana PCB rigid-flex, me nā papa ʻoʻoleʻa a me nā mea hoʻopili. Ma ka noʻonoʻo ʻana i nā mea e like me ka rigidity, ka maʻalahi, ka pale ʻana i ka wela a me ke kumukūʻai, hiki i nā mea hana uila ke koho i nā mea kūpono e pili ana i kā lākou koi noi kikoʻī. ʻO FR4 paha no nā papa paʻa, polyimide no nā papa maʻalahi, a i ʻole epoxy no ka hoʻopaʻa ʻana, he kuleana ko kēlā me kēia mea i ka hōʻoia ʻana i ka lōʻihi a me ka hana o nā PCB rigid-flex i ka ʻoihana uila o kēia lā.
Ka manawa hoʻouna: Sep-16-2023
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