Zvinonyatsozivikanwa kuti iyo yakanakisa ficha yemabhodhi edunhu ndeyekubvumidza yakaoma edunhu marongero muNzvimbo dzakamanikidzwa. Nekudaro, kana zvasvika kune OEM PCBA (Yekutanga michina inogadzira Yakadhindwa Circuit board Assembly) dhizaini, yakanyatso kudzora impedance, mainjiniya anofanirwa kukunda akati wandei uye matambudziko. Tevere, chinyorwa ichi chinoburitsa zvipimo zvekugadzira Rigid-Flex PCB ine inodzorwa impedance.
Rigid-Flex PCB Dhizaini
Rigid-Flex PCBs ihybrid yeakaomesesa uye anochinjika edunhu mabhodhi, achibatanidza ese matekinoroji kuita imwechete unit. Iyi nzira yekugadzira inobvumira kushanduka kukuru mukushandisa uko nzvimbo iri pamutengo wepamusoro, senge mumidziyo yekurapa, aerospace, uye zvemagetsi zvevatengi. Kugona kupeta nekupeta PCB pasina kukanganisa kutendeseka kwayo mukana wakakura. Nekudaro, uku kuchinjika kunouya neayo seti yezvinetso, kunyanya kana zvasvika kune impedance control.
Impedance Zvinodiwa zveRigid-Flex PCBs
Impedance control yakakosha mune yakakwirira-kumhanya dhijitari uye RF (Radio Frequency) maapplication. Iyo impedance yePCB inokanganisa kutendeseka kwechiratidzo, izvo zvinogona kutungamira kune nyaya dzakadai sekurasikirwa kwechiratidzo, kuratidzwa, uye crosstalk. Kune Rigid-Flex PCBs, kuchengetedza inopindirana impedance mukati medhizaini kwakakosha kuti uve nechokwadi chekuita kwakakwana.
Kazhinji, iyo impedance range yeRigid-Flex PCBs inotsanangurwa pakati pe50 ohms uye 75 ohms, zvichienderana nekushandisa. Nekudaro, kuwana iyi inodzorwa impedance inogona kunetsa nekuda kweakasarudzika maitiro eRigid-Flex dhizaini. Zvishandiso zvinoshandiswa, ukobvu hwematanho, uye dielectric zvivakwa zvese zvinotora basa rakakosha pakuona iyo impedance.
Kugumira kweRigid-Flex PCB Stack-Up
Imwe yezvipimo zvekutanga mukugadzira Rigid-Flex PCBs ine inodzorwa impedance ndiyo stack-up kumisikidza. Iyo stack-up inoreva kurongeka kwezvikamu muPCB, izvo zvinogona kusanganisira mhangura zvidimbu, dielectric zvinhu, uye anonamira akaturikidzana. MuRigid-Flex dhizaini, iyo stack-up inofanirwa kugarisa ese akaomarara uye anochinjika zvikamu, izvo zvinogona kuomesa iyo impedance control process.
1. Zvisungo zvezvinhu
Zvinhu zvinoshandiswa muRigid-Flex PCBs zvinogona kukanganisa zvakanyanya impedance. Flexible zvinhu zvinowanzove neasiyana dielectric constants zvichienzaniswa neakaomarara zvinhu. Kusiyana uku kunogona kutungamirira kune kusiyana kwe impedance iyo yakaoma kudzora. Pamusoro pezvo, kusarudzwa kwezvinhu kunogona kukanganisa kuita kwese kwePCB, kusanganisira kugadzikana kwekupisa uye simba remagetsi.
2. Layer Thickness Variability
Ukobvu hwematanho muRigid-Flex PCB inogona kusiyanisa zvakanyanya pakati peakaomarara uye anochinjika zvikamu. Kusiyana uku kunogona kuunza matambudziko mukuchengetedza kusagadzikana kunoenderana mubhodhi rose. Mainjiniya anofanirwa kuverengera kukora kwega rega rega kuti ave nechokwadi chekuti impedance inoramba iri mukati meiyo yakatarwa.
3. Bend Radius Kufunga
Iyo bend radius yeRigid-Flex PCB chimwe chinhu chakakosha chinogona kukanganisa impedance. Kana iyo PCB yakakotama, iyo dielectric zvinhu inogona kumanikidza kana kutambanudza, ichichinja iyo impedance maitiro. Vagadziri vanofanirwa kuverengera iyo bend radius mukuverenga kwavo kuti vaone kuti iyo impedance inoramba yakagadzikana panguva yekushanda.
4. Manufacturing Tolerances
Kugadzira kushivirira kunogonawo kuunza matambudziko mukuwana inodzorwa impedance muRigid-Flex PCBs. Kusiyana kwemaitiro ekugadzira kunogona kutungamira mukusawirirana muhukobvu hwakatsetseka, zvimiro zvezvinhu, uye hukuru hwakazara. Izvi zvisingaenderani zvinogona kukonzera impedance mismatches iyo inogona kuderedza kutendeseka kwechiratidzo.
5. Kuedzwa uye Kusimbiswa
Kuedza Rigid-Flex PCBs yekudzora impedance inogona kuve yakaoma kupfuura yechinyakare yakaoma kana inochinjika maPCB. Midziyo yakasarudzika uye matekiniki anogona kudikanwa kuyera nenzira kwayo impedance muzvikamu zvakasiyana zvebhodhi. Izvi zvakawedzerwa zvakaoma zvinogona kuwedzera nguva uye mutengo unobatanidzwa nekugadzira uye kugadzira maitiro.
Nguva yekutumira: Oct-28-2024
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