Gushushanya uburyo bwo gukora ibintu mu buryo bwa PCB bukoresha inshuro nyinshi: Guhuza udushya n'ukuri k'umusaruro

Intangiriro

Mu gishushanyo mbonera cya PCB zikoresha inshuro nyinshi, igishushanyo mbonera cy’uburyo bwo gukora ibintu (DFM) ni ikiraro cy'ingenzi gihuza udushya mu by'ubuhanga n'umusaruro mwinshi kandi uhendutse. Ku bahanga mu by'ubuhanga mu by'ubwubatsi bwa RF PCB, kumenya amahame ya DFM bivuze gukora imbaho ​​zidakora gusa ahubwo zizewe, zishobora kwaguka, kandi zihenze kugira ngo zikoreshwe.

Kuva intera hagati y'aho ibintu biherereye kuri imiterere y'ibice birundanyije, binyuze mu gishushanyo mbonera, na imiterere y'aho ibintu biherereye, buri kantu kose kagomba gusuzuma ukuri kw'ibikoresho bikoreshwa inshuro nyinshi ndetse n'uburyo bidashobora guhindurwa. Iyi ngingo igaragaza ibintu by'ingenzi mu miterere ya PCB ikorwa inshuro nyinshi n'uburyo igira ingaruka ku bwiza, imikorere myiza, n'igiciro.

1. Igishushanyo mbonera cy'ibishushanyo n'uburyo bihuzwa n'inganda

Ubugari bwiza bw'umurongo n'imyanya

Muri PCB zifite frequency yo hejuru, ubugari n'intera bigira ingaruka kuri byombi imikorere y'amashanyarazi (urugero, kugenzura impedance) na umusaruro w'inganda.

• Impedansi y'intego: 50Ω cyangwa 75Ω—bisaba ubugari/intera zifatika zibazwe hakoreshejwe laminate Dk
• Ibibujijwe mu nganda: Ku bikoresho bikoresha inshuro nyinshi, ihindagurika ry'imikorere riba ryihariye kurusha uko bimeze kuri FR-4 isanzwe

Ubuyobozi bw'Igishushanyo: Irinde kongerera ubushobozi bwo gushushanya. Aho gukoresha 3mil/3mil, koresha 4mil/4mil cyangwa nini kuri laminate ifite frequency nyinshi kugira ngo hirindwe ko ikanzu ngufi, ifunguka, cyangwa ngo ikurikirane ibyangiritse.

Uburyo bwiza bwo gukoresha ibimenyetso

Uburyo bwiza bwo gukoresha ibimenyetso byihuse bugomba kuba:

• Inzira itaziguye kandi ngufi (kugabanya kugabanuka kw'ibimenyetso)
• Bitandukanye n'aho bihurira n'inshuro (kwirinda kuvugana hagati y'abantu)
• Bikwiriye ikizamini (harimo udupapuro two gupimisha dushobora gukoreshwa)

Ibi biratera imbere ubunyangamugayo bw'ikimenyetso, inkunga isuzuma ry'umusaruro, kandi ikarinda inenge mu mikorere mu gihe cyo kuyikoresha.

2. Imiterere ya Stackup: Guhuza ibisabwa mu by'amashanyarazi n'inganda

Umubare w'Ibyiciro n'Ihitamo ry'Ibikoresho

• Ibindi byiciro = gutandukanya ibimenyetso/ingufu neza, ariko ikiguzi n'ibyago biri hejuru
• Ibyiciro bike cyane = kugenzura nabi EMI, inzira zangiritse

Ku bijyanye na porogaramu zikomeye za RF nka 5G, Inzego zirenga 10 ni ibisanzwe. Rogers RO4350B ni amahitamo akunzwe cyane ku byifuzo bike bya Dr/Df, ariko bisaba kugenzura cyane mu gutunganya.

Inama ku buhanga: Hitamo laminate atari iyo gukora neza gusa ahubwo no kuyikoresha ubushobozi bwo gukora mashini, imyitwarire yo guhuza, na guhagarara neza k'ubushyuhe mu gihe cyo gutwika.

Ibitekerezo ku bijyanye n'uburyo bwo gusiga irangi

Multilayer RF PCBs zisaba kugenzura neza:

• Ubuziranenge bwo kwiyandikisha (± 50μm)
• Ibipimo byo gukanda: 180–220°C, 5–10MPa, iminota 30–60 bitewe n'uburyo busanzwe n'ingano y'umuringa

Gutunganya stackup bigomba kuringaniza gukwirakwiza dielectric na uburinganire bw'umuringa kugira ngo harebwe ko irangi ringana kandi hirindwe ko irangirika cyangwa irangirika.

3. Igishushanyo cya Via na Pad: Guhuza n'ubushobozi bwo gukora

Binyuze mu bwoko n'ingano y'umuyoboro

• Umwobo wo kunyuramo byoroshye gukora ariko bigatera imiti yica udukoko
• Inzira zipfutse kandi zishyinguwe kugabanya uburyo ibimenyetso bihindagurika ariko byongera ikiguzi n'uburemere

Inama ku gishushanyo: Koresha ubwoko bujyanye n'umurambararo w'ikimenyetso cyawe n'uburyo bwo kwihanganira gukwirakwira kwacyo. Irinde ko umurambararo muto urenze mm 0.2, kuko bigora gucukura no gusimbuza.

Igishushanyo mbonera cya Pad kugira ngo gikoreshwe neza mu gusoda

• Menya neza ko pads zihuye igice cy'ikimenyetso cy'ibice na imiterere yo kongera gutembera
• Kugira ngo wongere utembagaze: ongera ingano ya pad kugira ngo ijyane neza n'amazi akoreshwa mu gusoda
• Ku bijyanye no gusoda mu buryo bw'ingufu: koresha amazi yo gusoda ifite imiterere/imiterere ikwiye ya pad

Kwirinda ibibazo byo gushongesha: Tekereza kuri ENIG cyangwa OSP itoranijwe mu gukoresha inshuro nyinshi. Irinde ko pads zangiritse cyangwa zidapfundikiye neza zishobora gutera gushushanya imva, guhuzacyangwa ingingo zikonje.

4. Inenge rusange n'ibisubizo by'ubuhanga

Inenge z'umurongo

• Ibimenyetso: Imiterere ifunguye, imitako migufi, cyangwa ubugari budahuye
• Impamvu: Imirongo mito cyane, kugenzura nabi ibishushanyo, gucukura nabi
• Ibisubizo:
• Koresha uburyo bwo kwirinda ibintu bihindagurika imiterere y'ijimetero ibereye igishushanyo mbonera
• Gukurikirana ubutabire bw'ibintu bishya n'uburyo bwo gutegura ubuso bwa PCB
• Tegura imashini zicukura kandi urebe ko zangiritse

Ibibazo byo Guhuza Ibice

• Ibimenyetso: Delamination, amakabutura magufi y'imbere
• Impamvu: Umuvuduko/ubushyuhe buke cyangwa kutagenda neza kw'ingufu
• Ibisubizo:
• Hitamo ibiryo birwanya ubushuhe
• Koresha sisitemu zo guhuza lamination zinoze cyane
• Igishushanyo gifite ibihagije icyuho cy'interlayer

Ubusembwa bwa Via na Pad

• Ibimenyetso: Via zifunze, plaque idakomeye, pad lifting cyangwa oxidation
• Impamvu: Imyanda yo gucukura, imiti ikoreshwa nabi yo gupfuka, imigozi idahagije yo gupfuka
• Ibisubizo:
• Gutunganya isuku nyuma yo gucukura
• Gukomeza gukoresha imiti yo koga mu bwogero n'ibipimo byabyo
• Ongera imiterere ya pad hanyuma ushyireho ipaki yo kurwanya ogisijeni

Gufunga Icyuho: Igishushanyo mbonera cy'ibikoresho gitanga agaciro

Amasosiyete ashyiramo Amahame ya DFM mu gushushanya RF PCB bihora birusha abandi bahanganye:

• Umusaruro mwinshi mu gutsinda mbere
• Gusubiramo cyangwa guhindura imiterere y'ibishushanyo bike
• Kwizerwa neza igihe kirekire
• Kugabanya ibirego by'abakiriya n'ikiguzi cya garanti

Mu buryo bunyuranye, kutita ku buryo bwo gukora ibintu bitera gutinda kenshi k'umusaruro, umusaruro muke, ndetse n'ubwiza bw'umusaruro budahindagurika—cyane cyane muri indege, ubuvuzicyangwa ibikoresho by'ikoranabuhanga byo kwirwanaho, aho gutsindwa atari amahitamo.

Impamvu Rich Full Joy ari we mufatanyabikorwa wawe mwiza wa RF PCB

Kuri Ibyishimo Byuzuye Bikungahaye, turenga igishushanyo mbonera—dukora inyigo ku intsinzi mu musaruroImpuguke zacu zisobanukiwe ubuzima bwose bwa PCB zifite frequency yo hejuru, kuva ku buryo bwiza bwa DFM kugeza ku gutunganya ibikoresho bya RF bigezweho.

• Gutegura neza imiterere y'ibikoresho bya RF
• Gukoresha stackup simulations na impedance modelling
• Kwemeza igishushanyo mbonera hamwe no guhuza inzira yo gukora
• Imiterere myiza y’umusaruro ishyigikiwe n’uburambe bw’imyaka myinshi mu gukora RF

Izere Umukire wuzuye ibyishimo kugufasha gushushanya ishingiye ku mikorere, bihendutse, na ishobora gukorwa cyane RF PCBs—zakozwe kuva ku gitekerezo kugeza ku rwego rwo gukora.