Prototyping Flexible PCBs Uchishandisa Impedance Inodzorwa Traces

suma:

Munyika yanhasi, uko miniaturization uye kuchinjika kuri kuita zvinhu zvakakosha mukugadzirwa kwemagetsi, kudiwa kweiyo prototyping yakadhindwa yakadhindwa yedunhu mabhodhi (PCBs) ine impedance-inodzorwa traces yakakura zvakanyanya. Sezvo midziyo yemagetsi ichiramba ichishanduka, vagadziri vanoshuvira kutsvaga nzira dzekuvandudza uye dzinodhura dzekuenzanisira maPCB akadaro.Mune ino blog, isu tichatora kudzika kwakadzika mukati mekuita prototyping inochinjika maPCB ane impedance-inodzorwa trace, kuongorora zvinonetsa, zviripo sarudzo, uye akanakisa maitiro.

1. Nzwisisa inochinjika PCB:

Usati wanyura mune izvo zvinochinjika PCB prototyping ine impedance inodzorwa traces, zvakakosha kuti unzwisise pfungwa uye mabhenefiti eanochinjika maPCB. Flexible PCBs, inozivikanwawo semasekete anochinjika, akagadzirirwa kubhenda, kupetwa, kana kumonyaniswa kuchengetedza nzvimbo uye kuwedzera kuchinjika mumhando dzakasiyana dzekushandisa. Chimiro chavo chakareruka, kusimba uye kugona kujairana neasiri-anoronga nzvimbo inoita kuti ive yakanakira maindasitiri akadai semotokari, zvekurapa uye zvemuchadenga.

2. Kukosha kwe impedance control:

Impedance control yakakosha kana uchigadzira yakakwirira frequency maseketi sezvo ichivimbisa kutendeseka kwechiratidzo uye kuderedza kukanganiswa kwemagetsi. MumaPCB anochinjika, kuchengetedza impedance control inotonyanya kukosha nekuti ivo vari musikirwo vanotapukirwa nekurasikirwa kwemasaini uye kukanganisa kunokonzerwa nekukotama kana kuchinjika. Prototyping ine impedance-inodzorwa nzira inogona kubatsira kudzivirira nyaya dzakadai, zvichikonzera yakavimbika uye yakasimba flex PCB mhinduro.

3. Prototype inochinjika PCB uchishandisa impedance inodzorwa zviteshi:

Kana prototyping inochinjika maPCB ane impedance-inodzorwa trace, vagadziri vane akati wandei sarudzo dzekufunga. Ngationgororei dzimwe nzira dzinowanzo shandiswa:

A. Yakadhindwa Circuit Board (PCB) Prototyping Company:
Kushanda nenyanzvi PCB prototyping kambani ndiyo imwe nzira yekunyatso prototype inochinjika maPCB ane impedance-inodzorwa nzira. Aya makambani ehunyanzvi ane hunyanzvi, maturusi uye ruzivo rwekubata kuoma kwakabatana nemaseketi anochinjika. Nekupa iyo inodiwa dhizaini mafaera uye zvakatemwa, vagadziri vanogona kuwana emhando yepamusoro prototypes ine inodiwa impedance control.

b. Internal prototyping:
Vagadziri vanosarudza kutonga kwakawanda pamusoro peiyo prototyping maitiro vanogona kusarudza prototype inoshanduka PCBs mumba. Iyi nzira inoda kuisa mari mumidziyo yakakodzera, senge PCB inochinjika printer kana plotter. Zvishandiso zveSoftware zvinoteedzera uye kuongorora impedance control, senge Altium Dhizaini kana Eagle, inogona kubatsira kuzadzisa inodiwa trace impedance panguva ye prototyping process.

4. Maitiro akanakisa ekuchinjika PCB prototyping uchishandisa impedance controlled traces:

Kuve nechokwadi chekubudirira dhizaini yeinochinjika PCB prototypes ine impedance inodzorwa traces, akanakisa maitiro anofanirwa kuteverwa. Heano mamwe mazano:

a. Yakakwana dhizaini gadziriro:
Vasati vatanga prototyping process, vagadziri vanofanirwa kugadzirira zvizere madhizaini avo, anosanganisira layer stackup, trace wides, uye spacing kuzadzisa inodiwa impedance control. Zvinogona kubatsira kushandisa dhizaini software inotsigira impedance kuverenga uye simulation.

b. Kusarudzwa kwezvinhu:
Kune inochinjika PCB prototypes ine impedance-inodzorwa trace, kusarudza iyo chaiyo zvinhu kwakakosha. Kusarudza inochinjika substrate senge polyimide ine yakaderera chiratidzo kurasikirwa uye yakagadzikana dielectric zvivakwa zvinogona kuwedzera zvakanyanya kutapurirana kwechiratidzo uye kuperera kwechiratidzo.

c. Kusimbisa uye kuyedza:
Mushure meiyo prototyping nhanho, zvakakosha kuti uone mashandiro uye kuyedza impedance control. Nyatsoyera impedance discontinuities pamwe nematehwe uchishandisa bvunzo michina senge time domain reflectometry (TDR).

Mukupedzisa:

Prototyping flex PCBs uchishandisa impedance controlled traces haisi isina matambudziko ayo, asi neruzivo rwakakwana, maturusi, uye nzira, vagadziri vanogona kubudirira kuunza yavo itsva flex PCB dhizaini kune chokwadi. Kungave kushanda nePCB prototyping kambani kana kuongorora-mumba prototyping sarudzo, kunzwisisa kukosha kwekudzivirira kwekudzivirira uye kutevedzera akanakisa maitiro kunovhura nzira yeakavimbika, inochinjika mhinduro inosangana nezvinodiwa zvemazuva ano ane simba indasitiri yemagetsi. Saka enda kumberi uye tanga rwendo rwako rwe prototyping inochinjika maPCB ane impedance inodzorwa zviteshi uye uvhure mikana isingaperi yeinotevera yemagetsi dhizaini yekuedza.