Best Technology ndeimwe yakanakisisa pcb vagadziri uye akadhindwa redunhu bhodhi vatengesi mu China
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Best Technology ndeimwe yakanakisisa pcb vagadziri uye akadhindwa redunhu bhodhi vatengesi mu China
Rigid-flex maseketi ave kuwedzera mukurumbira mumakore achangopfuura nekuda kwekubatanidza kuchinjika kwemasekete anochinjika uye kusimba.& kuvimbika kweFR4 PCB. Imwe yeakakosha dhizaini yekutarisisa paunenge uchigadzira rigid-flex wedunhu ndiyo impedance kukosha. Kune akajairika high-frequency masaini uye RF maseketi, 50ohm ndiyo inonyanya kukosha iyo vagadziri vakashandisa uye mugadziri anokurudzirwa, saka sei uchisarudza 50ohm? Ko 30ohm kana 80ohm iripo here? Nhasi, isu tichaongorora zvikonzero nei 50ohm impedance iri iyo yakakwana dhizaini sarudzo yeakaomesesa-flex maseketi.
Chii chinonzi Impedance uye nei ichikosha?
Impedance chiyero chekupikisa kuyerera kwesimba remagetsi munharaunda, iyo inoratidzwa muOhms uye inoita chinhu chakakosha mukugadzirwa kwemasekete. Iyo inoreva hunhu hwekudzivirira kwekutapurirana trace, inova iyo impedance kukosha kweiyo electromagnetic wave uchifambisa mune trace / waya, uye ine hukama neiyo geometric chimiro chekutsvaga, iyo dielectric zvinhu uye yakatenderedza nharaunda yekutevera. Tinogona kutaura, impedance inokanganisa kushanda kwesimba rekufambisa uye kushanda kwese kwedunhu.
50ohm Impedance yeRigid-Flex Circuits
Pane zvikonzero zvakati kuti nei 50ohm impedance iri iyo yakanyanya dhizaini sarudzo yeakaomesesa-flex maseketi:
1. Yakajairika uye yakasarudzika kukosha yakatenderwa neJAN
Munguva yeHondo Yenyika II, kusarudzwa kwe impedance kwaitsamira zvachose pakudiwa kwekushandisa, uye pakanga pasina kukosha kwakajairika. Asi sezvo tekinoroji inofambira mberi, mazinga e impedance anofanirwa kupihwa kuitira kuti pave nekuenzanisa pakati pehupfumi uye nyore. Naizvozvo, iyo JAN Organisation (Joint Army Navy), sangano rakabatana remauto eUnited States, pakupedzisira rakasarudza 50ohm impedance seyakajairika chiyero kukosha kwekufunga nezve impedance matching, kugadzikana kwekutapurirana kwechiratidzo uye kudzivirira chiratidzo chekuratidzira. Kubva ipapo, 50ohm impedance yakashanduka kuita yepasirese default.
2. Performance maximization
Kubva paPCB dhizaini maonero, pasi peiyo 50ohm impedance, siginecha inogona kufambiswa pane yakanyanya simba mudunhu, nekudaro ichidzikisa chiratidzo chekumisikidza uye kufungisisa. Zvichakadaro, 50ohm zvakare ndiyo inonyanya kushandiswa antenna yekuisa impedance mukutaurirana kusina waya.
Kazhinji kutaura, yakaderera impedance, kuita kwekutapurirana traces kuchava nani. Kune yekufambisa trace ine yakapihwa mutsara hupamhi, iyo iri padyo nendege yepasi, inoenderana EMI (Electro Magnetic Interference) ichadzikira, uye crosstalk ichadzikira zvakare. Asi, kubva pakuona kwenzira yese yechiratidzo, impedance inokanganisa dhiraivha yemachipisi - mazhinji ekutanga machipisi kana vatyairi havagone kutyaira tambo yekutumira iyo yakaderera pane 50ohm, nepo mutsara wepamusoro wekutumira waive wakaoma kuita uye hauna. ita zvakare, saka kuwirirana kwe50ohm impedance yaive sarudzo yakanakisa panguva iyoyo.
3. Dhizaini Yakareruka
MuPCB dhizaini, inogara ichida kuenderana nenzvimbo yemutsara uye hupamhi kudzikisa chiratidzo chekuratidzira uye crosstalk. Saka kana tichigadzira zviteshi, isu tichaverengera stack kumusoro kwepurojekiti yedu, iyo inoenderana neukobvu, substrate, maseru uye mamwe ma paramita ekuverenga impedance, senge pazasi chati.
Zvinoenderana neruzivo rwedu, 50ohm iri nyore kugadzira stack up, ndosaka ichishandiswa zvakanyanya mumaindasitiri emagetsi.
4. Gadzirisa uye nyore kugadzira
Tichifunga nezvemidziyo yevakawanda varipo PCB vagadziri, zviri nyore kugadzira 50ohm impedance PCB.
Sezvatinoziva, yakaderera impedance inoda kuenzanisa yakafara mutsara hupamhi uye yakatetepa yepakati kana yakakura dielectric kugara, zvakaoma kudaro kusangana muchadenga kune azvino high density circuit board. Nepo iyo impedance yakakwira inoda mutete mutsara wakafara uye mukobvu wepakati kana diki dielectric kugara, iyo isingaite yeEMI uye crosstalk kudzvanywa, uye kuvimbika kwekugadzirisa kuchave kushoma kune akawanda maseketi uye kubva pamaonero ehuwandu hwekugadzira.
Kudzora 50ohm impedance mukushandiswa kweyakajairika substrate (FR4, nezvimwewo) uye yakajairika musimboti, kugadzirwa kweakajairwa bhodhi ukobvu se 1mm, 1.2mm, inogona kugadzirwa yakajairika mutsara upamhi hwe4 ~ 10mil, saka kugadzirwa kuri nyore kwazvo, uye kugadziriswa kwemidziyo haisi yakanyanya kunyanya kudiwa.
5. Kuenderana neHigh-Frequency Signals
Mazhinji zviyero uye zvigadzirwa-zvishandiso zvemabhodhi edunhu, zvinobatanidza, uye tambo zvakagadzirirwa 50ohm impedance, saka kushandisa 50ohm kunovandudza kuenderana pakati pemidziyo.
6. Mari-inoshanda
Iyo 50ohm impedance isarudzo yehupfumi uye yakanaka kana uchifunga nezve chiyero pakati pemutengo wekugadzira uye kuita kwechiratidzo.
Iine hunhu hwayo hwakadzikama hwekufambisa uye yakaderera chiratidzo chekukanganisa mwero, 50ohm impedance inoshandiswa zvakanyanya mundima dzakawanda, senge vhidhiyo masaini, yakakwirira-kumhanya data kutaurirana, nezvimwe. Nekudaro, zvakakosha kuti uzive, kuti nepo 50ohm iri imwe yeanonyanya kushandiswa kupindira muinjiniya yemagetsi, mune mamwe maapplication, akadai seredhiyo frequency, mamwe maitiro e impedance anogona kudiwa kuti asangane nezvinodiwa. Naizvozvo, mune chaiyo dhizaini, isu tinofanirwa kusarudza iyo yakakodzera impedance kukosha zvinoenderana nemamiriro chaiwo.
Yakanakisa Tekinoroji ine yakapfuma yekugadzira ruzivo mune yakaomesesa flex wedunhu bhodhi, chero imwechete layer, maviri akaturikidzana kana akawanda-layer FPC. Mukuwedzera, Best Tech inopa FR4 PCB (kusvika makumi matatu nemaviri), simbi musimboti PCB, ceramic PCB uye imwe yakakosha PCB seRF PCB, HDI PCB, yakawedzera nhete uye inorema mhangura PCB. Kugamuchirwa kuti utaure nesu kana uine PCB kubvunza.
