Muindasitiri yemazuva ano yemakwikwi emagetsi, pane kudiwa kuri kuramba kuchikura kwemabhodhi ematunhu akadhindwa (PCBs).Sezvo indasitiri inokura, ndizvo zvinoitawo kudiwa kwePCBs inokwanisa kutsungirira mamiriro akasiyana ezvakatipoteredza uye kusangana nezvinodiwa zvemagetsi akaomarara.Apa ndipo panopinda pfungwa yeflex rigid-flex PCB.
Rigid-flex board inopa yakasarudzika musanganiswa wezvakaomarara uye zvinochinjika zvinhu, zvichiita kuti zvive zvakanakira maapplication anoda kusimba uye kuchinjika.Aya mabhodhi anowanzo kuwanikwa mumidziyo yekurapa, masisitimu emuchadenga, uye mamwe maapplication akavimbika.
Impedance control chinhu chakakosha chinokanganisa zvakanyanya kuita kweakaomesesa-flex mabhodhi.Impedance ndiko kupikisa dunhu rinopa kuyerera kwealternating ikozvino (AC).Yakakodzera impedance control yakakosha sezvo ichivimbisa yakavimbika chiratidzo kutapurirana uye kuderedza kurasikirwa kwesimba.
Mune ino blog, Capel ichaongorora zvinhu zvishanu zvinogona kukanganisa zvakanyanya iyo impedance kudzora kweakaomesesa-flex mabhodhi.Kunzwisisa zvinhu izvi kwakakosha kune vanogadzira PCB nevagadziri kuti vaunze zvigadzirwa zvemhando yepamusoro zvinosangana nezvinodiwa nenyika yanhasi inofambiswa nehunyanzvi.
1. Ma substrates akasiyana achakanganisa kukosha kwe impedance:
YeFlex Rigid-Flex PCB, mutsauko mune zvigadziko zvinhu une mhedzisiro pakukosha kwe impedance.Mune rigid-flex boards, iyo inochinjika substrate uye yakaomesesa substrate inowanzove yakasiyana dielectric constants uye conductivity, izvo zvinokonzeresa impedance mismatch matambudziko pakusangana pakati pema substrates maviri.
Kunyanya, ma substrates anochinjika ane yakakwira dielectric kugara uye yakadzika magetsi conductivity, nepo substrates dzakaomarara dzine yakaderera dielectric garage uye yakakwirira magetsi conductivity.Kana iyo chiratidzo ichipararira muakaomesesa-flex redunhu bhodhi, pachava nekufungisisa uye kutapurirana pachimiro cheiyo yakaoma-inoshanduka pcb substrate.Aya ekufungidzira uye ekutapurirana zviitiko anoita kuti impedance yechiratidzo ichinje, kureva, impedance kusawirirana.
Kuti udzore zvirinani kukanganiswa kweiyo flex-rigid pcb, nzira dzinotevera dzinogona kutorwa:
Sarudzo yesubstrate:sarudza musanganiswa weiyo rigid flex circuit substrates kuitira kuti dielectric yavo nguva dzose uye conductivity zvive pedyo sezvinobvira kuderedza dambudziko re impedance mismatch;
Interface treatment:yakakosha kurapwa kweiyo interface pakati pcb rigid flex substrates, sekushandisa yakakosha interface layer kana laminated film, kuvandudza impedance inoenderana kune imwe nhanho;
Kudzvanya control:Mukugadzira muitiro wakaomarara flexible pcb, parameters akadai tembiricha, kumanikidzwa uye nguva zvinonyatsodzorwa kuti ive nechokwadi bonding yakanaka flex flex redunhu bhodhi substrates uye kuderedza impedance kuchinja;
Simulation uye debugging:Kuburikidza nekuenzanisa uye kuongororwa kweiyo chiratidzo chekuparadzira mune yakasimba inoshanduka pcb, tsvaga dambudziko re impedance mismatch, uye gadzirisa zvinoenderana uye optimizations.
2. Line hupamhi kupatsanura chinhu chakakosha chinokanganisa impedance control:
Mune iyo rigid-flex board, iyo mutsara wakafara spacing ndechimwe chezvinhu zvakakosha zvinokanganisa impedance control.Hupamhi hwetambo (kureva hupamhi hwewaya) uye kupatsanuka kwetambo (kureva chinhambwe chiri pakati pewaya dziri pedyo) zvinotarisa geometry yegwara razvino, izvo zvinozokanganisa maitiro ekutapurirana uye kukosha kwechiratidzo.
Izvi zvinotevera pesvedzero yemutsara wakafara nzvimbo pane iyo impedance kutonga kweiyo rigid-flex board:
Basic Impedance:Line spacing yakakosha pakudzora iyo yakakosha impedance (kureva, iyo hunhu impedance yemicrostrip mitsara, coaxial tambo, nezvimwewo).Zvinoenderana nedzidziso yemutsara wekutepfenyura, zvinhu zvakaita sehupamhi hwemutsara, kupatsanurwa kwemutsara, uye ukobvu hwesubstrate zvakabatana zvinotarisisa hunhu hwetambo yekutapurirana.Kana iyo mutsara wakafara nzvimbo yachinja, inotungamira kune shanduko mune yehunhu impedance, nekudaro ichikanganisa kutapurirana kwechiratidzo.
Impedance kuenzanisa:Impedance yekufananidza inowanzodikanwa mumabhodhi akaomesesa-flex kuti ive nechokwadi chekufambiswa kwezviratidzo zvemasaini mudunhu rese.Impedance yekuenzanisa kazhinji inoda kugadzirisa mutsara wehupamhi hwepakati kuti uwane.Semuenzaniso, mumutsara wemicrostrip, iyo impedance yemaitiro eiyo tambo yekutapurirana inogona kuenzaniswa neiyo impedance inodiwa nehurongwa nekugadzirisa hupamhi hwemakondakita uye nzvimbo pakati pevanofambisa conductor.
Crosstalk uye Kurasikirwa:Line spacing ine zvakare yakakosha kukanganisa kutonga kwe crosstalk uye kurasikirwa.Kana mutsara wakafara mutsara uri diki, iyo yemagetsi munda wekubatanidza mhedzisiro pakati pewaya dziri padyo inowedzerwa, izvo zvinogona kutungamira mukuwedzera kwecrosstalk.Uye zvakare, madiki waya upamhi uye yakakura waya spacings inokonzeresa yakanyanyisa kugovera ikozvino, kuwedzera waya kuramba uye kurasikirwa.
3. Ukobvu hwezvinhu zvakare chinhu chakakosha chinokanganisa kudzora kweiyo rigid-flex board:
Kusiyana kwehukobvu hwezvinhu kunokanganisa zvakananga hunhu impedance yetambo yekutapurirana.
Izvi zvinotevera mhedzisiro yehukobvu hwezvinhu pane iyo impedance kudzora kweakaomesesa-flex mabhodhi:
Transmission line hunhu impedance:Hunhu hunokanganisa tambo yekufambisa inoreva hukama hwepakati pakati peazvino nevoltage patambo yekufambisa pane imwe frequency.Mune iyo rigid-flex board, ukobvu hwechinyorwa huchakanganisa kukosha kweiyo hunhu impedance yemutsetse wekutumira.Kazhinji kutaura, kana ukobvu hwezvinhu hwave hutete, iyo hunhu impedance inowedzera;uye kana ukobvu hwezvinhu hwawedzera, iyo impedance yehunhu inodzikira.Naizvozvo, kana uchigadzira yakaomesesa-flex board, zvinodikanwa kuti usarudze hwakakodzera hwezvinhu ukobvu kuti uwane inodiwa hunhu impedance zvinoenderana nehurongwa hunodiwa uye chiratidzo chekufambisa hunhu.
Mutsetse-kune-Nzvimbo Ratiyo:Kusiyana kwehukobvu hwezvinhu kuchakanganisawo mutsara-kune-pakati reshiyo.Zvinoenderana nedzidziso yemutsara wekutapurirana, hunhu hwekudzivirira hunoenderana nereshiyo yehupamhi hwemutsara nenzvimbo.Kana hupamhi hwezvinhu huchichinja, kuitira kuti uchengetedze kugadzikana kwechimiro impedance, zvakakosha kugadzirisa chiyero chehupamhi hwemutsara uye mutsara wemutsara maererano.Semuyenzaniso, kana ukobvu hwezvinhu hwadzikiswa, kuitira kuti hunhu hurambe huripo, hupamhi hwemutsara hunofanirwa kudzikiswa zvinoenderana, uye mutsara wemutsara unofanirwa kuderedzwa zvakafanira kuchengetedza upamhi hwemutsara kune reshiyo nzvimbo isina kuchinjika.
4. Kushivirira kwemhangura ye electroplated zvakare chinhu chinokanganisa iyo impedance control yeiyo flexible rigid board:
Electroplated mhangura inowanzoshandiswa conductive layer mumabhodhi akaomarara, uye shanduko mukukora kwayo uye kushivirira kunokanganisa zvakananga hunhu hwebhodhi.
Izvi zvinotevera pesvedzero ye electroplating kushivirira kwemhangura pane iyo impedance control yemabhodhi anochinjika akaomarara:
Electroplated mhangura ukobvu kushivirira:Ukobvu hwemhangura ye electroplated ndechimwe chezvinhu zvakakosha zvinokanganisa kusagadzikana kweiyo rigid-flex board.Kana ukobvu kushivirira kwe electroplated mhangura yakakura kwazvo, ukobvu hweiyo conductive layer pandiro ichachinja, nekudaro ichikanganisa hunhu hweimpedance yeplate.Naizvozvo, kana uchigadzira flex rigid board, zvinodikanwa kunyatso kudzora ukobvu kushivirira kwe electroplated mhangura kuti ive nechokwadi chekugadzikana kwehunhu impedance.
Kufanana kwe electroplating mhangura:Pamusoro pekushivirira kwehukobvu, kufanana kwemhangura ye electroplating kunokanganisawo impedance kudzora kweakaomesesa-flex mabhodhi.Kana paine kusaenzana kugoverwa kwe electroplated mhangura layer pabhodhi, zvichikonzera kukora kwakasiyana kwemhangura ye electroplated munzvimbo dzakasiyana dzebhodhi, iyo impedance yehunhu ichachinja zvakare.Naizvozvo, zvinodikanwa kuve nechokwadi chekufanana kwemhangura ye electroplated kuti ive nechokwadi chekuenderana kwehunhu impedance kana uchigadzira mabhodhi akapfava uye akaomarara.
5. Etching kushivirira zvakare chinhu chakakosha chinokanganisa iyo impedance kutonga kweakaomesesa-flex mabhodhi:
Etching tolerance inoreva kutsauka kwehukobvu hweplate iyo inogona kudzorwa kana etching ichiitwa mukugadzira mabhodhi anochinjika akaomarara.
Izvi zvinotevera mhedzisiro ye etching kushivirira pane iyo impedance kudzora kweakaomesesa-flex mabhodhi:
Impedance yekufananidza yeakaomesesa-flex board: Mukugadzira-yakaomarara-flex board, etching inowanzo shandiswa kudzora hunhu impedance kukosha.Kuburikidza ne etching, hupamhi hweiyo conductive layer inogona kugadziridzwa kuti uwane iyo impedance kukosha inodiwa nedhizaini.Zvisinei, panguva etching muitiro, sezvo etching kukurumidza etching mhinduro pandiro anogona kuva kumwe kushivirira, pangava kutsauka muhupamhi conductive layer pashure etching, izvo zvinokanganisa kudzora chaiyo hunhu impedance.
Consistency muhunhu impedance:Etching kushivirira kunogona zvakare kutungamirira kune mutsauko mukukora kweiyo conductive layer mumatunhu akasiyana, zvichikonzera kusawirirana kwehunhu impedance.Kusawirirana kwemaitiro impedance kunogona kukanganisa kushanda kwekutumira kwechiratidzo, iyo inonyanya kukosha mukukurukurirana kwepamusoro-soro kana kushandiswa kwepamusoro-frequency applications.
Impedance control chinhu chakakosha cheFlex Rigid-Flex PCB dhizaini nekugadzira.Kuwana kwakaringana uye kunoenderana impedance kukosha kwakakosha kune yakavimbika chiratidzo kutapurirana uye kuita kwese kwemagetsi zvishandiso.Saka nekunyatso tarisisa kusarudzwa kwe substrate, trace geometry, inodzorwa dielectric ukobvu, copper plating tolerances, uye etch tolerances, PCB vagadziri uye vagadziri vanogona kubudirira kuendesa akasimba, emhando yepamusoro-akaomesesa-flex mabhodhi anosangana nezvinodiwa zveindasitiri. 15 makore yekugovana ruzivo rweindasitiri, ndinovimba Capel inogona kukuunzira rubatsiro runobatsira.Kuti uwane mimwe mibvunzo yebhodhi redunhu, ndapota tibvunze isu zvakananga, Capel's nyanzvi yedunhu bhodhi nyanzvi timu ichakupindura iwe online.
Nguva yekutumira: Aug-22-2023
Back
