Uburyo PCB Connector Pitch Tolerances igira ingaruka ku busugire bw'ibimenyetso mu bikorwa bikoresha inshuro nyinshi

Uburyo bwo kwihanganira umuvuduko w’itumanaho rya PCB ni kimwe mu bipimo byirengagizwa ariko by’ingenzi bigena ubuziranenge bw’ibimenyetso muri sisitemu z’ikoranabuhanga zikoresha ikoranabuhanga rya frequency yo hejuru. Iyo igihe cyo kuzamuka kw'ibimenyetso cyegereje nanosegonda 1 cyangwa munsi yayo, ingano y'imiterere y'umuyoboro w'itumanaho itangira kwiganza mu mikorere y'amashanyarazi. Injeniyeri mu by'igishushanyo zihitamo imiyoboro y'itumanaho. ku itumanaho ibikorwa remezo, sisitemu zo kugenzura inganda, cyangwa module za RF ntibishobora gufata ubushobozi bwo kwihanganira imiterere y'ijwi nk'ibisobanuro bya kabiri.

Kubera ko n'aho umuntu asa n'aho ari muto mu gutandukanya hagati y'aho ahurira n'aho ahurira bituma habaho kutumvikana kw'ingufu zigaruka aho kuzigeza ku mutwaro neza. Muri sisitemu ya 50 ohm ikora kuri 2.4 GHz, intambwe ya impedance iterwa no kwihanganira umuvuduko w’amashanyarazi ya ohms 10 gusa ishobora gutuma voltage standing wave ratio (VSWR) irenga 1.5:1, bigatuma ingufu za 4% zigabanuka mu buryo bwinshi bwo guhuza.

Gusobanukirwa uburyo PCB Connector Pitch ikora n'uruhare rwayo mu kohereza ibimenyetso

Uburyo bwo guhuza - intera iri hagati y'aho abantu bahurira muri PCB cyangwa soketi ya IC — isobanura imiterere y'ibanze y'inzira yo kohereza amakuru. Iki gipimo, hamwe n'imiterere y'ibikoresho bya dielectric hamwe n'imiterere y'uburyo bwo guhuza, bishyiraho impedance idasanzwe (Z0) ikimenyetso kibona iyo kinyuze mu muyoboro.

Mu miterere ya PCB ifite umurongo wo hejuru, intego ni ugukomeza impedance ihoraho mu nzira yose y'ikimenyetso kuva kuri driver kugeza kuri receiver. Impinduka iyo ari yo yose itunguranye mu kubuza amajwi gutuma habaho kugaragara kw'amajwi mu buryo butunguranye. Ingufu zigaragara zikura ku kimenyetso cy'imbere, bigabanya ubwinshi bw'amajwi ku cyuma gifata amashusho kandi bishobora guteza amakosa muri sisitemu za digitale.

Isano iri hagati y’umuvuduko w’itumanaho n’umuvuduko w’itumanaho ikurikiza inyigisho y’umurongo w’itumanaho yashyizweho neza. Umuvuduko wagutse muri rusange utanga umuvuduko mwinshi w’itumanaho ku buryo runaka bwo gukoraho, mu gihe umuvuduko muto ugabanya umuvuduko w’itumanaho binyuze mu kongera ubushobozi bwo guhuza hagati y’abayobora itumanaho begeranye.

Impamvu kwihanganira umuvuduko w'ijwi ari cyo gipimo cy'ingenzi — Atari umuvuduko gusa

Agaciro k'umuvuduko (2.54mm, 2.0mm, 1.27mm) gatanga imiterere y'ikintu kigamije, ariko ubushobozi bwo gukora bugena uburyo iyo imiterere ikomeza gukoreshwa mu bwinshi bw'umusaruro. Umuhuza wagenwe kuri 2.54mm pitch ariko ukozwe mu buryo bwo kwihanganira +/-0.15mm uzagaragaza itandukaniro rigaragara mu miterere y’impedance kuva kuri pin imwe kugeza kuri pin imwe no kuva kuri batch imwe kugeza kuri batch imwe.

Kubera ko impedance ingana mu buryo bunyuranye n'intera iri hagati y'ibimenyetso n'ibiyobora amashanyarazi, ihinduka rya +/-0.1mm mu ijwi rishobora gutuma habaho ihinduka rya impedance riri hagati ya +/-4 na +/-8 ohms mu buryo busanzwe bwa microstrip ya 50 ohm. Iyo iri hinduka rigeze kuri +/-12 ohms cyangwa irenga — rikunze kugaragara ku miyoboro ihendutse — ihungabana riba rikomeye bihagije ku buryo ryangiza ubwiza bw'amajwi ndetse no ku murongo uringaniye.

Niyo mpamvu gushyiraho uburyo bwo kwihanganira ijwi bitandukanya imiterere ikomeye y’amajwi menshi n’uburyo bwo kuryoherwa n’abantu bakunda gucuranga. Icyiciro cyo kwihanganira +/-0.05mm kiboneka muri soketi za NBJGE precision IC kigaragaza urugero rw'imikorere yizewe hejuru ya 1 GHz.

Igereranya rya Socket ya IC: 1.27mm vs 2.0mm vs 2.54mm

Umurongo w'ibicuruzwa bya NBJGE bya soketi ya IC ukubiyemo ubwoko butatu busanzwe bwa pitch, buri bumwe bukozwe neza ku buryo butandukanye bwo gukoresha domaine zikoresha frequency nyinshi. Hashingiwe ku bipimo bya TDR by’uruganda byakozwe mu gihembwe cya mbere cya 2026 mu bipimo birenga 200, igereranya rikurikira rigaragaza ibipimo by’ubuziranenge bw’ibimenyetso byapimwe kuri buri cyiciro cy’itsinda.

Ibipimo byacu bigaragaza itandukaniro rigaragara: ijwi rito ritanga ubucucike bwinshi bw'amajwi ariko ritanga interuro nyinshi hamwe n'impedance nke, byombi bigabanya imikorere ya frequency yo hejuru. Ubwoko bwa pitch bwa 2.54mm, bufite crosstalk yo hasi (-32 dB vs -22 dB kuri 1.27mm) kandi ikaba ihuye neza na impedance ya sisitemu ya 50 ohm, ihora irusha connectors nziza mu buryo bwa analog RF iri hejuru ya 1 GHz.

Iki ni igitekerezo cy'ingenzi ku bahanga mu by'ubwubatsi: iyo ubuziranenge bw'ibimenyetso ari ingenzi cyane, ntugakoreshe uburyo bwo gupima uburebure buke buhari kugira ngo uzigame umwanya gusa. Soketi ya 2.54mm IC ikomeje kuba amahitamo meza kuri RF nyinshi n'itumanaho kugeza kuri 5 GHz.

Uburyo Kwihanganira Inganda Bitera Kutagira Impedance mu Bikorwa

Ibintu bitatu byihariye byo mu nganda bituma kwihanganira ijwi ry’umuvuduko w’amashanyarazi biba ukwangirika kw’ibimenyetso bipimwa: Ikosa ryo gushyira ibintu ku murongo, ihinduka ry'ibipimo bya insulator, n'ubugari bwa plating ingano idahuye.

Uburyo bw'impamvu #1: Kubera ko ikosa ryo gushyira aho umurongo uhurira n'aho uhurira mu gihe cyo gushushanya no gushyiramo rituma habaho intera idahuye hagati y'aho umurongo uhurira n'aho uhurira n'aho uhurira n'aho uhurira, uburebure bwa capacitance kuri buri gice buhinduka kuva kuri pin kugera kuri pin. Iri hinduka rya capacitance rigaragara ritanga ihindagurika ry'impedance kuri buri gice cyo guhuza. Kuri 2.4 GHz, ikosa rya pitch rya 0.08mm hagati ya pins ebyiri zegeranye rituma habaho ihinduka rya capacitance rya hafi 0.15 pF, muri sisitemu ya 50 ohm rihuye n'intambwe ya impedance ya 7 ohms.

Uburyo bw'impamvu #2: Kubera ko ibikoresho byo mu nzu bikingira (ubusanzwe PA66, PA6T, cyangwa LCP) bigabanukaho 0.2-1.5% mu gihe cyo gukonjesha inshinge, intera nyayo yo gukoranaho nyuma yo gukonjesha itandukanye n'imiterere y'aho ibumba riherereye. Ihuriro ry'imirongo rya 2.54mm ryakozwe muri PA6T rifite imirongo ya 0.6% rigabanukaho icyuho cya 0.015mm. Iyo bihujwe n'ingufu z'ibikoresho, ihindagurika ry'ubushyuhe, n'ihindagurika ry'ibikoresho, ubushobozi bwo kwihanganira ibintu bushobora kugera kuri 0.10-0.15mm.

Uburyo bw'impamvu #3: Kubera ko guhitamo gutwikira zahabu (ubusanzwe 0.76-1.27 um hejuru y'urukuta rwa nikeli) yongeraho 15-25 um by'ibikoresho kuri buri buso buhuye, impinduka mu bunini bwa plating ku gice cy'umuyoboro zituma habaho impinduka nto ariko zipimirwa. Imirongo yo plating yihuta cyane hamwe no kugenzura ubunini bwa XRF mu gihe nyacyo ituma iri hinduka riba +/-3 um, mu gihe inzira zisanzwe zishobora kwemerera +/-8 um.

Uruhare rw'ibikoresho bya Dielectric mu mikorere myiza cyane

Ibikoresho bikingira ubushyuhe bikikije aho PCB ihurira bigira ingaruka zikomeye ku busugire bw'amajwi - ndetse binarenze ubushobozi bwo kwihanganira ijwi rimwe na rimwe. Ihindagurika rya dielectric (Dk) n'ikintu gitanga umusaruro (Df) by'ibikoresho byo mu nzu bigena uburyo ingufu za electromagnetic zitwara ku kigega cy'itumanaho.

Dielectrique za LCP ongera ingano y'ikoreshwa ry'imiterere y'ingufu runaka ku kigero cya 30-50% ugereranije n'ingufu zisanzwe za PA66, ahanini bitewe n'uko LCP ifite amashanyarazi make kandi adahindagurika hamwe n'ubushobozi bwo gukwirakwiza ibintu buri hasi cyane. Ku buso bwa 2.54mm pitch IC socket ikora kuri 3.5 GHz, LCP housing igabanya igihombo cyo kwinjira kuva kuri -0.9 dB kugeza kuri -0.5 dB - iterambere rya 44%.

NBJGE itanga amahitamo ya dielectric ya LCP na PPS mu bwoko bwa soketi yayo ya IC ku bakiriya bakoresha porogaramu zabo zisaba ubuziranenge ntarengwa bw'amajwi ku murongo uri hejuru ya 2 GHz.

Kwangirika k'ubunyangamugayo bw'ibimenyetso: Kuva ku nyigisho kugeza ku ngaruka zipimirwa

Kwangirika kw'ikimenyetso bitewe no kwihanganira umuvuduko w'amazi kugaragara mu buryo butatu bupimwe: kwiyongera k'igihombo cyo kugaruka, crosstalk nyinshi, no kwegeranya amakuru mu buryo bw'ikoranabuhanga.

Igihombo cyo kugaruka — gipimwe nka S11 muri dB — gipima ingano y'ikimenyetso cy'impanuka kigaragara inyuma bitewe no kudahuza neza kwa impedance. Ku gikoresho gihuza amashanyarazi gikoresha umuvuduko wa 3 GHz gifite ubushobozi bwo kwihanganira +/-0.10mm, igihombo gisanzwe cyo kugaruka gipima -12 kugeza -15 dB, bivuze ko 3-6% by'ingufu z'ikimenyetso bigaragazwa. Kunoza ubushobozi bwo kwihanganira +/-0.05mm byongera igihombo cyo kugaruka kigera kuri -18 kugeza -22 dB, bigabanya imbaraga zo kugaruka kigera kuri 0.6-1.5%.

Crosstalk — ipimwa nka S21 (hafi y'impande) cyangwa S31 (hafi y'impande) — ipima uburyo idakenewe bwo guhuza inzira z'ibimenyetso zegeranye. Kuri 2 GHz, umuyoboro wa 1.27mm ugaragaza crosstalk nyinshi ya dB 10 kurusha umuyoboro wa 2.54mm umeze kimwe.

Guteranya Jitter — ihindagurika ry’igihe cy’impinduka z’ibimenyetso by’ikoranabuhanga — ni yo ngaruka ikomeye cyane mu mikorere kuko igabanya mu buryo butaziguye igihe ntarengwa mu byakira by’ikoranabuhanga. Kudahuza kw'impedansi iterwa n'umuyoboro wa ohms 10 ku gipimo cya 1.25 Gbps bitera 25-40 ps ya jitter idasanzwe. Iyo hari imiyoboro itatu cyangwa ine y'umuyoboro mu nzira y'ibimenyetso, jitter yakusanyijwe ishobora gukoresha 30-50% by'ingengo y'imari ihari.

Amabwiriza Afatika yo Guhitamo Injeniyeri mu by'Ubugeni

Hitamo ubwoko bw'ibanga ry'umuyoboro wa PCB n'uburyo bwo kwihanganira ibintu ukurikije inshuro z'imikorere, hanyuma ubucucike bw'umuyoboro n'igiciro.

Kuri porogaramu za DC kugeza kuri 500 MHz

Ingufu isanzwe ya 2.54mm ifite ubushobozi bwo kwihanganira +/-0.10mm irahagije. Dielectric za PA66 cyangwa PA6T zitanga imikorere ihagije. Porogaramu zisanzwe zirimo ibimenyetso byo kugenzura amashanyarazi, uburyo bwo kugenzura imikorere y’inganda, no kubona amakuru yihuta cyane.

Kuri porogaramu za 500 MHz kugeza kuri 3 GHz

Hitamo uburebure bwa 2.54mm cyangwa 2.0mm bufite ubushobozi bwo kwihanganira +/-0.05mm na dielectric ya PA6T cyangwa PPS. Garagaza impedance igenzurwa (50 ohms +/-5 ohms) hanyuma usabe amakuru y'ikizamini cya TDR mu ruganda. Uru rutonde rukubiyemo Gigabit Ethernet, WiFi 5/6 modules zo imbere, n'ibikorwa remezo bya 4G LTE.

Kuri porogaramu za GHz 3 kugeza kuri 10 GHz

Koresha uburebure bwa 2.54mm bufite ubushobozi bwo kwihanganira +/-0.03mm na dielectric ya LCP. Saba imiterere yuzuye ya S-parameter kugeza kuri 10 GHz. Ibi bireba 5G NR sub-6 GHz na Ku-band satellite receiver. NBJGE igera ku buremere bwa +/- 0.03mm binyuze mu gukoresha neza ibumba hamwe no kugabanya ubushyuhe bw'ibikoresho mu masaha 48 mu gihe cyo gukora.

Ku muvuduko uri hejuru ya 10 GHz

Tekereza ku bisubizo byihariye by'ibihuza bifite imiterere y'ubutaka. Soketi zisanzwe za IC ntizisabwa kurenza 10 GHz hatabayeho simulation ya SI yagutse. Reba itsinda ryacu ry’abahanga kugira ngo ubahe inama zijyanye na porogaramu.

Uburyo bwo gupima no kugenzura

TDR (igihe-domain reflecometry) ni bwo buryo bw'ibanze bwo gusuzuma imiterere ya impedance y'umuyoboro mu gihe cy'imikorere nyayo. Igikoresho cya TDR cyohereza umuvuduko w’intambwe wihuta cyane (ubusanzwe igihe cyo kuzamuka cya 35 ps, gihuye na bandwidth ya 10 GHz) kandi kigapima reflections. Buri kutumvikana kwa impedance kugaragara nk'izamuka ku ishusho ya TDR.

Gupima S-parameter ya VNA (vector network analyzer) bitanga imiterere ya frequency-domain ikenewe mu kwigana igishushanyo. Kuri buri IEC 60512-27-100, Ibipimo bya S-parameter ku miyoboro ya PCB bigomba gukorwa byibuze inshuro 5 z'umuvuduko ntarengwa wo gukora.

Gusesengura imbonerahamwe y'amaso ni bwo buryo bworoshye bwo gusuzuma ubwiza bw'ibimenyetso by'ikoranabuhanga binyuze mu cyuma gihuza amaso. Ku gipimo cya 2.54mm NBJGE IC socket ifite ubushobozi bwo kwihanganira +/-0.05mm, igeragezwa ry’uruganda kuri 2.5 Gbps rigaragaza ko ijisho rihagaze rya 320 mV (68% by’ubushobozi bw’umushoferi) n’umuvuduko utambitse wa 22 ps kuva ku iherezo kugeza ku iherezo.

Igereranya ry'Amarushanwa: Amahame ya NBJGE ugereranije n'ay'Inganda

Kubera ko atari ko soketi zose za IC "zikora neza" zitanga umusaruro umwe wo kwihanganira, twagereranije mu buryo butaziguye ibyiciro bitatu by'abatanga serivisi kuri pitch ya 2.54mm dukoresheje amakuru y'igerageza ry'uruganda yavuye mu ngero 50.

Umwanzuro n'Intambwe zikurikiraho

Kwihanganira uburyo bwo gukwirakwiza umuyoboro wa PCB ni igipimo cy’imiterere y’ikimenyetso cya mbere cy’ubuziranenge bw’ibimenyetso bikoresha frequency yo hejuru, ntabwo ari ibipimo by’inyongera mu gukora. Itandukaniro riri hagati yo kwihanganira +/-0.10mm na +/-0.05mm rishobora gusobanura itandukaniro riri hagati y’ishusho y’ijisho inyura n’iy’inanirwa kuri 3 GHz, bigasobanura neza ko ari ingirakamaro ku itumanaho n’ibikoresho byo kugenzura inganda.

Mu gihe usuzuma abatanga PCB connectors ku gishushanyo cyawe gikurikiraho cy’amajwi menshi, saba amakuru yihariye yo kwihanganira ibipimo bya TDR impedance aho kwishingikiriza ku bipimo by'umuvuduko gusa.

NBJGE itanga raporo zirambuye z'ibizamini by'ubuziranenge bw'ibimenyetso hamwe na buri gikoresho cy'icyitegererezo cya soketi ya IC, harimo na za profayiro za impedance za TDR n'amakuru ya S-parameter kugeza kuri 10 GHz.

Ibibazo Bikunze Kubazwa

Ese nshobora gukoresha icyuma gihuza amashanyarazi cya 1.27mm kuri porogaramu za 5G?

Yego, ariko hashingiwe ku buryo bwitondewe ku gishushanyo mbonera. Umuyoboro wa 1.27mm ushobora gukoreshwa kuri 5G NR sub-6 GHz niba igishushanyo kirimo uburinzi bw'ubutaka kandi frequency ikaguma munsi ya 3 GHz. Hejuru ya 3 GHz, crosstalk yo hejuru (-22 dB) na impedance nto (42 ohms) bishobora gutera kwangirika kw'ikimenyetso ku buryo budakwiye.

Ni kangahe nkwiye kugenzura ubushobozi bwo gukoresha connector mu gutunganya filime?

Igenzura ry’ubuziranenge bw’abatanga serivisi rigomba kuba rikubiyemo gupima ingano y’ibicuruzwa buri mezi 6. Kuri buri ISO 9001 ibisabwa, saba amakuru yo gupima AOI yo mu mezi 12 ashize y'umusaruro afite agaciro ka Cpk kari hejuru ya 1.33.

Ese impinduka z'ubushyuhe zigira ingaruka ku kwihanganira ijwi?

Yego, kwaguka k'ubushyuhe bigira ingaruka ku bunini bw'ingufu mu gukora. Igikoresho cya 2.54mm LCP (CTE ya 5-10 ppm/C) cyagukaho hafi 0.0013mm kuri buri zamuka rya 10 C. Kwaguka kw'itsinda ry'igikoresho cya 64-pin bishobora kugera kuri 0.08mm ku gipimo cy'ubushyuhe bwa 50 C. Ku bijyanye n'ubushyuhe bwinshi, garagaza ibikoresho bihuye na CTE.

Amareferensi: ISO 9001:2015 | IEC 60512-27-100 | Amabwiriza y'Ubuziranenge bw'Ibirango bya IEEE

Iheruka kuvugururwa: 21 Gicurasi 2026. Amakuru ashingiye ku bipimo by'uruganda bya Q1 2026 bivuye mu bipimo birenga 200 bya soketi za IC muri laboratwari y'ubuziranenge ya NBJGE.