Rigid-flex akadhindwa edunhu mabhodhi (PCBs) ane mukurumbira nekuda kwekusiyana-siyana uye kusimba mumhando dzakasiyana dzemagetsi ekushandisa. Aya mabhodhi anozivikanwa nekugona kwawo kutsungirira kukotama uye torsional kusagadzikana uku achichengetedza hukama hwemagetsi hwakavimbika.Ichi chinyorwa chichatarisa zvakadzama pazvinhu zvinoshandiswa mune rigid-flex PCBs kuti uwane nzwisiso mukuumbwa kwavo uye zvivakwa. Nekuburitsa zvinhu zvinoita kuti rigid-flex PCBs ive yakasimba uye inochinjika mhinduro, tinogona kunzwisisa maitiro avanoita mukusimudzira kwemidziyo yemagetsi.
1.Nzwisisa therigid-flex PCB chimiro:
A rigid-flex PCB ibhodhi rakadhindwa redunhu rinobatanidza rigid uye rinochinjika substrates kuumba rakasiyana chimiro. Musanganiswa uyu unogonesa mabhodhi edunhu kuti aite matatu-dimensional wedunhu, achipa dhizaini kuchinjika uye nzvimbo optimization yemidziyo yemagetsi. Chimiro cheakaomesesa-flex mapuranga ane matatu makuru akaturikidzana. Yekutanga layer ndiyo yakaomarara layer, yakagadzirwa neyakaomarara zvinhu zvakaita seFR4 kana simbi yesimbi. Iyi nhanho inopa tsigiro yezvimiro uye kugadzikana kuPCB, ichiva nechokwadi chekugara kwayo uye kuramba kune mechanic kusagadzikana.
Chikamu chechipiri chigadziko chinoshanduka chakagadzirwa nezvinhu zvakadai se polyimide (PI), liquid crystal polymer (LCP) kana polyester (PET). Iyi layer inobvumira PCB kukotama, kumonyoroka uye kukotama pasina kukanganisa kushanda kwayo kwemagetsi. Iko kuchinjika kweiyi layer kwakakosha kune maapplication anoda kuti PCB ikwane munzvimbo dzisina kujairika kana dzakasimba. Rudzi rwechitatu ndiro rinonamira, rinobatanidza zvidimbu zvakasimba uye zvinoshanduka pamwechete. Iri danga rinowanzo gadzirwa ne epoxy kana acrylic zvinhu, zvakasarudzirwa kugona kwavo kupa chisungo chakasimba pakati pematanho uku ichipawo yakanaka magetsi ekudzivirira zvinhu. Iyo yekunamatira layer inoita basa rakakosha mukuona kuvimbika uye hupenyu hwesevhisi yeakaomesesa-flex mabhodhi.
Imwe neimwe dhizaini mune yakaomesesa-flex PCB chimiro yakanyatsosarudzwa uye yakagadzirirwa kuzadzisa chaiyo mechanic uye magetsi ekuita zvinodiwa. Izvi zvinoita kuti maPCB ashande nemazvo mumhando dzakasiyana siyana dzekushandisa, kubva kumagetsi evatengi kuenda kumidziyo yekurapa uye masisitimu emuchadenga.
2.Zvishandiso zvinoshandiswa muzvikamu zvakaoma:
Mune yakaomesesa dhizaini yekuvaka yeakaomesesa-flex PCBs, akawanda maturusi anowanzo shandiswa kupa inodiwa tsigiro yechimiro uye kutendeseka. Zvishandiso izvi zvakanyatsosarudzwa zvichienderana nehunhu hwazvo uye nekuita zvinodiwa. Zvimwe zvezvinhu zvinonyanya kushandiswa zveakaomesesa zvidimbu mune rigid-flex PCBs zvinosanganisira:
A. FR4: FR4 is a rigid layer material inoshandiswa zvakanyanya mumaPCB. Iyo girazi-yakasimbiswa epoxy laminate ine yakanakisa yekupisa uye michina zvinhu. FR4 ine kuoma kwakanyanya, kunyura kwemvura kwakadzika uye kwakanaka kwemakemikari kuramba. Izvi zvivakwa zvinoita kuti ive yakanaka seyakaomarara dhizaini sezvo ichipa yakanakisa chimiro kutendeseka uye kugadzikana kuPCB.
B. Polyimide (PI): Polyimide inoshanduka-shanduka inodzivirira kupisa iyo inowanzoshandiswa mumabhodhi akaoma-flex nekuda kwekudzivirira kwayo kwekushisa. Polyimide inozivikanwa nekunaka kwayo magetsi ekudzivirira zvivakwa uye kugadzikana kwemuchina, ichiita kuti ive yakakodzera kushandiswa seakaomarara akaturikidzana mumaPCB. Inochengetedza maitiro ayo emagetsi uye emagetsi kunyange kana yakatarisana nekupisa kwakanyanya, zvichiita kuti ive yakakodzera kune zvakasiyana-siyana zvekushandisa.
C. Metal Core: Mune zvimwe zviitiko, kana kutarisirwa kwakanakisisa kwekushisa kuchidiwa, zvinhu zvesimbi zvesimbi zvakadai sealuminium kana mhangura zvinogona kushandiswa sechigadziko chakasimba mu-rigid-flex PCBs. Zvishandiso izvi zvine yakanakisa thermal conductivity uye zvinogona kunyatso bvisa kupisa kunoitwa nemasekete. Nokushandisa simbi yesimbi, rigid-flex boards inogona kunyatsogadzirisa kupisa uye kudzivirira kupisa, kuve nechokwadi chekuvimbika kwedunhu uye kushanda.
Chimwe nechimwe chezvishandiso izvi chine zvachakanakira uye chinosarudzwa zvichienderana nezvinodiwa zvePCB dhizaini. Zvinhu zvakadai sekushanda tembiricha, kushushikana kwemagetsi uye zvinodikanwa zvekutonga kwemafuta ese anoita basa rakakosha pakuona zvinhu zvakakodzera zvekubatanidza akaomesesa uye anochinjika PCB akaomarara akaturikidzana.
Izvo zvakakosha kuti uzive kuti kusarudzwa kwezvinhu zveakaomarara akaturikidzana mune rigid-flex PCBs chinhu chakakosha chemaitiro ekugadzira. Kusarudzwa kwezvinhu kwakakodzera kunovimbisa kutendeseka kwechimiro, kutonga kwekupisa uye kuvimbika kwese kwePCB. Nekusarudza zvinhu zvakanaka, vagadziri vanogona kugadzira maPCB akaomarara anosangana nezvinodiwa zvemaindasitiri akasiyana siyana, anosanganisira mota, aerospace, zvekurapa, uye nharembozha.
3.Zvishandiso zvinoshandiswa mune inochinjika layer:
Flexible layers in rigid-flex PCBs inofambisa kupeta nekupeta hunhu hwemabhodhi aya. Izvo zvinhu zvinoshandiswa kune inochinjika layer zvinofanirwa kuratidza yakakwirira kuchinjika, elasticity uye kuramba kudzokororwa kupeta. Zvishandiso zvakajairika zvinoshandiswa kune anochinjika layers zvinosanganisira:
A. Polyimide (PI): Sezvambotaurwa, polyimide chinhu chakasiyana-siyana chinoshumira zvinangwa zviviri mu-rigid-flex PCBs. Mune flex layer, inobvumira bhodhi kukotama uye kukotama pasina kurasikirwa nemagetsi ayo.
B. Liquid Crystal Polymer (LCP): LCP ndeyepamusoro-inoita thermoplastic zvinhu zvinozivikanwa nokuda kwemaitiro ayo ekugadzirisa zvinhu uye kuramba kutonhora kwakanyanya. Iyo inopa yakanakisa kuchinjika, dimensional kugadzikana uye hunyoro kuramba kune yakaoma-flex PCB magadzirirwo.
C. Polyester (PET): Polyester inodhura-yakaderera, isingaremi zvinhu ine zvakanaka kuchinjika uye insulating zvinhu. Inowanzo shandiswa kuomarara-flex PCB uko mutengo-unoshanda uye zvine mwero kukotama kugona kwakakosha.
D. Polyimide (PI): Polyimide chinhu chinowanzoshandiswa mune dzakaoma-inoshanduka PCB flexible layers. Iyo ine yakanakisa kuchinjika, yakakwirira tembiricha kuramba uye yakanaka magetsi ekudzivirira zvivakwa. Firimu rePolyimide rinogona kuve rakamisikidzwa zviri nyore, kusungirirwa uye kusungirirwa kune mamwe mativi ePCB. Vanogona kumira kudzokororwa kupeta pasina kurasikirwa nemagetsi avo, zvichiita kuti ive yakanaka kune inochinjika maseru.
E. Liquid crystal polymer (LCP): LCP ndeyepamusoro-inoshanda thermoplastic zvinhu izvo zviri kuwedzera kushandiswa sechinhu chinochinjika mumaPCB akaomarara. Iyo ine yakanakisa mechanicha zvimiro, zvinosanganisira yakakwirira kuchinjika, dimensional kugadzikana uye yakanakisa kuramba kutonhora kwakanyanya. Mafirimu eLCP ane low hygroscopicity uye akakodzera kushandiswa munzvimbo dzine hunyoro. Ivo zvakare vane yakanaka makemikari kuramba uye yakaderera dielectric kugara, kuve nechokwadi chekuita kwakavimbika mumamiriro ezvinhu akaoma.
F. Polyester (PET): Polyester, inozivikanwawo se polyethylene terephthalate (PET), chinhu chisingaremi uye chinodhura chinoshandiswa muzvikamu zvinogadziriswa zve- rigid-flex PCBs. PET firimu rine yakanaka kuchinjika, yakakwirira tensile simba uye yakanakisa kugadzikana kwemafuta. Aya mafirimu ane hunyoro hwakaderera uye ane yakanaka magetsi ekudzivirira zvivakwa. PET inowanzosarudzwa kana mutengo-unoshanda uye zvine mwero kukotama kugona kuri zvinhu zvakakosha mukugadzira PCB.
G. Polyetherimide (PEI): PEI ndeyepamusoro-inoshanda engineering thermoplastic inoshandiswa kune inochinjika layer ye soft-hard bonded PCBs. Iyo ine yakanakisa mechanicha zvinhu, kusanganisira yakakwirira kuchinjika, dimensional kugadzikana uye kuramba kune yakanyanya tembiricha. PEI firimu ine yakaderera mwando kunyura uye yakanaka makemikari kuramba. Ivo zvakare vane yakakwirira dielectric simba uye magetsi insulating zvivakwa, zvichiita kuti ive yakakodzera kune inoda maapplication.
H. Polyethylene naphthalate (PEN): PEN inonyanya kupisa-isingadziviriki uye inogadzirisa zvinhu zvinoshandiswa pakugadzirisa mutsara we-rigid-flex PCBs. Iyo ine yakanaka yekudziya kugadzikana, yakaderera mwando kunyura uye yakanakisa mechanic zvivakwa. Mafirimu ePEN anoshingirira zvakanyanya kumwaranzi yeUV uye makemikari. Ivo zvakare vane yakaderera dielectric inogara uye yakanakisa magetsi ekudzivirira zvivakwa. Firimu rePEN rinokwanisa kumira kupeta nekupeta kakawanda risingakanganise zvinhu zvaro zvemagetsi.
I. Polydimethylsiloxane (PDMS): PDMS ishanduko yakanyunguduka yakashandiswa inoshandiswa kune inoshanduka-shanduka yePCBs dzakapfava uye dzakaoma dzakasanganiswa. Iyo ine yakanakisa mechanical zvivakwa, kusanganisira yakakwirira kuchinjika, elasticity uye kuramba kudzokororwa kukotama. Mafirimu ePDMS anewo kugadzikana kwakanaka kwekupisa uye magetsi ekudzivirira zvinhu. PDMS inowanzoshandiswa mumashandisirwo anoda zvinhu zvakapfava, zvinotambanudzwa uye zvakagadzika, senge zvinopfekwa zvemagetsi nemidziyo yekurapa.
Imwe neimwe yezvishandiso izvi ine zvayakanakira, uye kusarudzwa kweiyo flex layer zvinhu zvinoenderana nezvinodiwa chaizvo zvePCB dhizaini. Zvinhu zvakadai sekuchinjika, tembiricha kuramba, hunyoro kuramba, kudhura-kushanda uye kugona kukotama kunoita basa rakakosha pakuona iyo yakakodzera zvinhu zveiyo inochinjika layer mune yakaoma-flex PCB. Kunyatsofunga nezvezvinhu izvi kunovimbisa kuvimbika kwePCB, kusimba uye kuita mumhando dzakasiyana dzekushandisa uye maindasitiri.
4.Adhesive zvinhu mune rigid-flex PCBs:
Kuti ubatanidze akaomesesa uye anochinjika akaturikidzana pamwechete, anonamira zvinhu anoshandiswa mukuomarara-flex PCB kuvaka. Izvi zvisungo zvekubatanidza zvinovimbisa kutendeseka kwemagetsi kubatana pakati pematanho uye kupa inodiwa mechanical rutsigiro. Zvinhu zviviri zvinonyanya kushandiswa zvekubatanidza ndezvi:
A. Epoxy Resin: Epoxy resin-based adhesives anoshandiswa zvakanyanya kusimba rawo repamusoro rekubatanidza uye kunaka kwemagetsi ekudzivirira. Vanopa kugadzikana kwakanaka kwekupisa uye kuwedzera kuomarara kwese kwebhodhi redunhu.
b. Acrylic: Acrylic-based adhesives inofarirwa mumashandisirwo uko kuchinjika uye hunyoro kuramba kwakakosha. Aya anonamatira ane simba rekubatanidza uye nguva pfupi yekurapa pane epoxies.
C. Silicone: Silicone-based adhesives inowanzoshandiswa mumabhodhi akaoma-flex nekuda kwekushanduka kwavo, kugadzikana kwakanaka kwekushisa, uye kurwisana nehunyoro nemakemikari. Silicone adhesives inogona kumira tembiricha yakakura, ichiita kuti ive yakakodzera kune maapplication ayo anoda zvese kuchinjika uye yakakwirira tembiricha kuramba. Vanopa chisungo chinoshanda pakati peakaomesesa uye anochinjika akaturikidzana achichengetedza zvinodiwa zvemagetsi.
D. Polyurethane: Polyurethane adhesives inopa kuenzana kwekushanduka uye kusimba kwekubatanidza mune rigid-flex PCBs. Ivo vane kunamatira kwakanaka kune akasiyana substrates uye vanopa yakanakisa kuramba kumakemikari uye tembiricha shanduko. Polyurethane adhesives zvakare inotora vibration uye inopa kugadzikana kwemichina kuPCB. Ivo vanowanzo shandiswa mumashandisirwo anoda kuchinjika uye kusimba.
E. UV Inorapika Resin: UV inorapika resin inonamira iyo inorapa nekukurumidza kana ichiiswa kune ultraviolet (UV) chiedza. Ivo vanopa kukurumidza kubatana uye nguva yekurapa, zvichiita kuti ive yakakodzera kugadzirwa kwepamusoro-vhoriyamu. UV-inorapika resins inopa kunamira kwakanakisa kune dzakasiyana siyana zvinhu, zvinosanganisira dzakaomarara uye dzinochinjika substrates. Ivo zvakare vanoratidza yakanakisa makemikari kuramba uye magetsi zvimiro. UV-anorapika resins anowanzo shandiswa kune akaomesesa-flex PCBs, uko kukurumidza kugadzirisa nguva uye kusungirirwa kwakavimbika kwakakosha.
F. Pressure Sensitive Adhesive (PSA): PSA chinhu chinonamatira chinoumba chisungo kana kumanikidzwa kunoshandiswa. Ivo vanopa yakanakira, yakapusa yekubatanidza mhinduro kune rigid-flex PCBs. PSA inopa kunamatira kwakanaka kune dzakasiyana siyana nzvimbo, kusanganisira yakaoma uye inochinjika substrates. Ivo vanobvumira repositioning panguva gungano uye anogona kubviswa nyore kana zvichidiwa. PSA inopawo yakanakisa kuchinjika uye kuenderana, ichiita kuti ive yakakodzera kune maapplication anoda PCB kukotama uye kukotama.
Mhedziso:
Rigid-flex PCBs chikamu chakakosha chemidziyo yemazuva ano yemagetsi, inobvumira dhizaini yakaoma yedunhu mumakompakiti uye akasiyana-siyana. Kune mainjiniya nevagadziri vanovavarira kukwirisa mashandiro uye kuvimbika kwezvigadzirwa zvemagetsi, zvakakosha kuti unzwisise zvinhu zvinoshandiswa mukuvaka kwavo. Ichi chinyorwa chinotarisa pazvinhu zvinowanzo shandiswa mukuomarara-flex PCB kuvaka, zvinosanganisira akaomarara uye anochinjika akaturikidzana uye anonamira zvinhu. Nekufunga zvinhu zvakaita sekuoma, kuchinjika, kupikisa kupisa uye mutengo, vagadziri vemagetsi vanogona kusarudza zvinhu zvakanaka zvichibva pane zvavanoda zvekushandisa. Kunyangwe iri FR4 yeakaomarara akaturikidzana, polyimide yeanochinjika layer, kana epoxy yekubatanidza, chinhu chimwe nechimwe chine basa mukuona kusimba uye kushanda kweakaomesesa-flex PCBs muindasitiri yemazuva ano yemagetsi inoita basa rakakosha.
Nguva yekutumira: Sep-16-2023
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