Umhlahlandlela Wokuklama i-HDI Stackup wama-PCB Alungele Ukukhiqizwa

I -HDI stackup elungele ukukhiqizwa akuyona "isinqumo sokubalwa kwezingqimba." Luhlelo lokwakha olulawulwayo oluchaza ukuthi izendlalelo zokwakha, ama-microvia, ubukhulu be-dielectric, ukwakheka kwethusi, kanye nezindiza zokubhekisela zisebenza kanjani ndawonye ukuze kufezwe ubuningi bomzila ngaphandle kokulahlekelwa yinzuzo, ukunemba kwe-impedance, noma ukuthembeka kwesikhathi eside . Kuma-BGA anenani eliphezulu kanye nama-electronics aqinile, i-stackup ivame ukuba yi-lever eyinhloko enquma ukuthi uhlelo lukhula kahle yini kusukela ku-prototype kuya ku-volume.

Kwa- Highleap Electronics , siklama ama-HDI stackups sisebenzisa indlela yokukhiqiza kuqala kanye nomsebenzi ovaliwe ohlanganisa ukwenziwa kwebhodi lesifunda eliphrintiwe kanye nokuhlanganiswa kwe-elekthronikhi (i-SMT/THT) . Lokhu kusiza amaqembu e-OEM ukuqeda imodi yokuhluleka kwe-HDI evame kakhulu: i-stack-up ehamba kahle ku-CAD, kodwa engagcini ikhono elizinzile ekukhiqizeni kwangempela (ikhwalithi ye-microvia, ukubhaliswa, ukulinganisela, ukuvinjelwa, kanye ne-warpage).

Okuqukethwe

1. Izisekelo ze-HDI Stackup: Okumele Kuchazwe Ukuze Kwenziwe Kwakheke
2. Ukukhetha Ukwakheka Okufanele: 1+N+1 vs 2+N+2 vs 3+N+3
3. Ubunjiniyela be-Microvia: Ukuma okumakwe ngokumakwe ngokumakwe, ukugcwaliswa kwemininingwane, kanye nokulawula ukuthembeka
4. Impedance Elawulwayo Kuma-HDI Stackups: Indlela Yokuyenza Iphindeke Futhi Ibikwe
5. I-DFM yama-HDI Stackups: Izinto Ezifihliwe Ezibangela Ukukhushulwa, I-Warpage, kanye Nezindleko Eziphelele
6. Okufanele Ukuthumele Ukuze Uthole Isilinganiso Esisheshayo Nesinembile Se-HDI (Iphakheji ye-RFQ Ethola Izimpendulo Zangempela)

1) Izisekelo ze-HDI Stackup: Okumele Kuchazwe Ukuze Kwenziwe Kwakhiwe

I-HDI stackup iba “ilungele ukukhiqiza” lapho inhloso yokuklama ihunyushwa ibe yimingcele engalinganiswa, ilawulwe, futhi iqinisekiswe. Uma i-stack-up yakho ibala kuphela ubukhulu obujwayelekile kanye ne-target impedance, ushiya ukuguquguquka okubalulekile kungachazwanga—futhi ukuguquguquka kwe-HDI kuzobonakala ekuvuneni, ekushintsheni kwe-impedance, noma emaphutheni okuhlangana.

• Ukwakhiwa kwezakhiwo: Cacisa ukuthi ibhodi liyi-1+N+1, 2+N+2, 3+N+3, noma yiliphi i-HDI (ELIC) esendlalelo, bese ukhomba isakhiwo esiyinhloko kanye nenani le-lamination elilandelanayo.
• Ububanzi bokujiya kwe-dielectric (hhayi nje kuphela okubizwa ngokuthi yi-nominella): Ukwehliswa kwe-lamination okulandelanayo kwandisa ukuzwela ekushintsheni kobukhulu; ukuchaza ububanzi obamukelekayo kuthuthukisa ukulethwa futhi kunciphisa ingozi yokujikeleza kabusha.
• Imodeli yokwakha ithusi: Faka uhlu lwesisekelo sethusi kanye nokukhula okulindelekile kwe-plating, ikakhulukazi ezingqimbeni zangaphandle lapho ukwakheka kwethusi kuthinta khona i-trace geometry kanye ne-impedance.
• Izindiza zokubhekisela kanye nezindlela zokubuya: Thola lapho imikhondo ye-controlled-impedance ibhekisela khona ezindizeni ze-GND/Power bese uqinisekisa ukuqhubeka kwendiza yezindlela zamanje zokubuya ezizinzile.
• Inhloso yokuqinisekisa: Chaza ukuthi udinga amakhuphoni e-impedance, amakhuphoni e-microsection, i-X-ray, noma eminye imiphumela yokuqinisekisa ukuze kube nokuvumelana kwe-lot-to-lot.

Uma ungaqiniseki ukuthi ungazifometha kanjani lezi zidingo, qala ngokuvumelanisa i-stackup yakho nefasitela le-DFM lomhlinzeki wakho bese ucela isincomo sokwakha esivela kumkhiqizi we-PCB oxhumanisayo onabantu abaningi.

2) Ukukhetha Ukwakheka Okufanele: 1+N+1 vs 2+N+2 vs 3+N+3 (Izindleko, Isivuno, kanye Nesikhathi Sokuhola)

Ukukhetha ukwakheka kwento kuyisihluthulelo esiyinhloko esishintshanisa ubuningi benqubo eyinkimbinkimbi. Izendlalelo eziningi zokwakheka kwento zinganciphisa indawo yebhodi futhi zenze kube lula ukuqondisa—kodwa umjikelezo ngamunye owengeziwe we-lamination ukhulisa ukuzwela kokubhalisa, ukuhlukahluka kwenqubo, kanye nezidingo zokuqinisekisa. Ukwakha ngokweqile kungenye yezizathu ezivame kakhulu zokuthi izingcaphuno zibuye phezulu noma amashejuli ayeke.

• 1+N+1 (evame kakhulu kwi-HDI ekhuliswayo): Ibhalansi engcono kakhulu yezindleko/isivuno, imijikelezo embalwa ye-lamination, futhi ngokuvamile indlela esheshayo yokukhiqiza ngobuningi obuzinzile kumadizayini amaningi aminyene.
• 2+N+2 (kumamojula aqinile e-BGA escape kanye nama-compact): Kuthuthukisa ukutholakala kweziteshi kanye nokusatshalaliswa kwama-BGA asezingeni eliphansi, kodwa kudinga ukulawulwa okuqinile kokubhaliswa kanye nokuzithiba okwengeziwe kwikhwalithi ye-microvia kanye nebhalansi yethusi.
• 3+N+3 (okuqhutshwa ukuminyana, ukuqinisekiswa-okunzima): Inkululeko ephezulu yokuhambisa i-inthanethi yokusetshenziswa okunamandla nge-in-pad kanye ne-I/O eningi, kodwa ukuzwela okwengeziwe kwikhwalithi yokugcwalisa i-microvia, ubuqotho be-lamination, kanye nokulawula i-warpage.
• Umthetho wobunjiniyela obusebenzayo: Qala nge ubunzima obuphansi kakhulu ukwakheka okuhlangabezana nemikhawulo yokuphunyuka kanye nemikhawulo yokuvimba, bese usebenzisa impendulo ye-DFM ukuqinisekisa imingcele. Uma i-DFM iqhuba ushintsho, ngokuvamile kushibhile ukulungisa ukwakheka kusenesikhathi kunokuphindaphinda ngesikhathi sokwakhiwa kweprototype.

Ukuze ukhethe ngokushesha futhi ucaphune, i-Highleap ingabuyekeza iphakheji yakho yokuklama futhi income ukwakheka okuhambisana nemigomo yokusebenza kanye namafasitela wamakhono angempela.

3) Ubunjiniyela be-Microvia: Ukuma okumakwe ngokumakwe ngokumakwe, imininingwane yokugcwalisa, kanye nokulawula ukuthembeka

Ama-Microvia ayisici esichazayo se-HDI—futhi umthombo ovame kakhulu wokwehluka kokuthembeka uma ungacaciswanga kahle. Empeleni, “ama-microvia” akuyona into eyodwa; umphumela uncike ku-geometry, ukubhanqa ungqimba, indlela yokugcwalisa, ukufana kweplati, kanye nezimo ze-lamination ezilandelanayo.

• Khetha ama-microvia ahlanganisiwe lapho ukuqondisa kuvumela khona: Izakhiwo ezixegayo ngokuvamile zisakaza ukucindezeleka kahle, okwenza ukuthembeka kwesikhathi eside kanye nokuqina kwesivuno kube lula ukulondoloza ivolumu.
• Sebenzisa ama-microvia ahlanganisiwe kuphela uma ubuningi buphoqa: Izakhiwo ezihlanganisiwe zandisa ukuzwela ukuze kugcwaliswe ubuqotho kanye nekhwalithi yokuxhumana. Uma kudingeka ama-microvia ahlanganisiwe, chaza ngokucacile ukugcwaliswa, okulindelwe ekuhleleni, kanye nezidingo zokuqinisekisa.
• Chaza ama-microvia layer pairs: Bhala ngokucacile ukuthi yiziphi izendlalelo ezisebenzisa ama-laser vias (isb., L1–L2, L2–L3) nokuthi yiziphi ama-vias angena emgodini noma agqitshwe. Lokhu kuvimbela ukuchazwa kabi futhi kusheshise i-CAM/DFM.

I-Via Fill kanye ne-Planarity (Okubalulekile ku-Via-in-Pad)

• Nge-in-pad ngaphansi kwama-BGA: Cacisa indlela yokugcwalisa (isb., ipulaki ye-resin noma egcwele ithusi) kanye nesidingo sokulinganisela esifanele inqubo yakho yokuphakamisa iphakethe kanye nokuhlanganisa.
• Inhloso yokwamukela: Chaza ukuthi amakhuphoni e-microsection ayadingeka yini ukuze kuqinisekiswe ukugcwalisa nokuthi i-X-ray iyadingeka yini ezindaweni zokuxhuma ezinobungozi obukhulu.
• Kungani lokhu kubalulekile: Imininingwane yokugcwalisa engachazwanga kahle ivame ukubonakala njengokulungiswa kabusha, amajoyinti e-solder angaguquki, noma izinkinga zokuthembeka ezifihliwe—ikakhulukazi ngaphansi kokujikeleza kokushisa.

Uma iphrojekthi yakho i-turnkey, i-stackup "engenzeka kahle" kodwa hhayi "eqinile ekuhlanganiseni" isazokubiza isikhathi. Ukuhlanganisa ukwenziwa nokuhlanganiswa ngaphansi kwe-loop eyodwa kunganciphisa lezi zingozi; bheka isevisi yethu yokuhlanganisa i-turnkey PCB.

4) I-Impedance Elawulwayo Kuma-HDI Stackups: Indlela Yokuyenza Iphindeke Futhi Ibikwe

Ku-HDI, ukushintshashintsha kwe-impedance kunganda ngoba i-lamination elandelanayo kanye nemiphumela yokwakha ithusi kwenza i-geometry ibe bucayi kakhulu. Ukuze kuvinjelwe imiphumela "edlule kanye", i-impedance kumele yakhiwe njenge-leverable leaveable elawulwayo kunokuba ibe yi-target eqanjiwe.

• Yisho incazelo ephelele ye-impedance: Inani eliqondiwe, ukubekezelelana, ukuphela okukodwa vs umehluko, kanye nokuthi yimaphi amanethi adinga ukulawulwa.
• Chaza isakhiwo: I-Microstrip vs stripline, isabelo sendiza ebhekisele kuyo, kanye nanoma yimiphi imingcele yokuhlukana kwendiza noma ukungaqhubeki kwendlela yokubuya.
• Sebenzisa ububanzi bokujiya kanye nokuqagela kokwakhiwa kwethusi: Ama-stackup ajwayelekile kuphela ayaphuka ku-HDI. Imininingwane esekelwe kububanzi ithuthukisa ukukhiqizwa futhi inciphise ukukhukhuleka kwe-impedance.
• Cela amakhuphoni uma kufaneleka: Amakhuphoni e-impedance kanye nedatha yokuhlola nge-lot ngayinye kuyindlela eqondile yokugcina i-impedance izinzile kuzo zonke izindawo zokukhiqiza.

Uma udinga usizo lokuguqula izidingo ze-SI zibe yi-stack-up ekwazi ukulethwa ekukhiqizeni, bheka umthombo wethu kuma -PCB alawulwa yi-impedance.

5) I-DFM yama-HDI Stackups: Izinto Ezifihliwe Ezibangela Ukukhushulwa, I-Warpage, kanye Nezindleko Eziphelele

Izinhlelo ze-HDI zivame ukubhekana nokwehla kwamandla emali ngenxa yezikhala ze-DFM “ezithule”—imininingwane engabonakali imangalisa ku-CAD, kodwa eqhuba ukungcola, ukusebenza kabusha, kanye nengozi yokuhlela ekukhiqizeni. Iqoqo eliqinile le-HDI lifaka imithetho ye-DFM evikela imingcele.

• Ukulingana kwe-stackup kokulawula i-warpage: Izakhiwo ezilinganisiwe zinciphisa ingozi yomnsalo/yokujika futhi zithuthukisa ukuqina kokuhlanganiswa ngaphansi kwama-BGA amakhulu namafasitela aqinile e-coplanarity.
• Isu lokulinganisela ithusi: Ukusatshalaliswa kwethusi okungalingani kungabangela ukushintshashintsha kokugeleza kwe-resin ngesikhathi sokulamina kanye nezinguquko zobukhulu bendawo ezithinta impedance kanye nokulingana.
• Ukuhlela umkhawulo wokubhalisa: Ama-capture pad, ama-annular ring target, kanye nama-alignment margins kufanele kube ngamabomu ukuze kugwenywe i-marginal vowels lapho isebenza ngesilinganiso.
• Ukulandelela okuncane/isikhala okuqondene nesendlalelo: Izendlalelo zangaphandle ziziphatha ngendlela ehlukile ngenxa yokufakwa kweplati; izendlalelo zangaphakathi zizwela ekuqineni kwe-etch kanye ne-laminate. Ukuchaza imingcele ngesendlalelo ngasinye kuthuthukisa umkhiqizo obikezelwayo.
• Ukuhlolwa kokuqoqwa kwe-stackup yokuklama: Ezakhiweni ezixinene, ukubhaliswa kwemaski ye-warpage, i-pad planarity, kanye ne-solder kusebenzelana kakhulu ne-BGA yield. Kushibhile ukulungisa i-stack-up kunokulwa nezinkinga zokuhlanganisa kamuva.

Kumakhasimende adinga ukuqinisekiswa okuqhubekayo, vumelanisa izidingo zokuhlola kusenesikhathi. Ukubuka kwethu konke kokuhlolwa kwe-PCB nokulawulwa kwekhwalithi kungakusiza ukuthi unqume ukuthi yimiphi imiphumela yokuqinisekisa ongayicela.

6) Okufanele Ukuthumele Ukuze Uthole Isilinganiso Esisheshayo Nesinembile Se-HDI (Iphakheji ye-RFQ Ethola Izimpendulo Zangempela)

Imibuzo esezingeni eliphezulu ithola izingcaphuno ezisezingeni eliphezulu. Uma iphakheji yakho ye-RFQ isiqediwe, ugwema ukucacisa okuningi futhi uthola intengo esheshayo, enembile kanye nesikhathi sokuhola—kanye nempendulo ye-DFM eqokomisa izingozi zangempela zenzuzo.

Faka Lawa mafayela

• I-Gerber noma i-ODB++ (kufaka phakathi imaski yokubopha, isikrini sesilika, uhlaka)
• Umdwebo we-stackup (okuthandwayo) noma inani lezingqimba + ukujiya kwethagethi
• Ithebula le-Impedance (izinhloso + ukubekezelelana + isakhiwo)
• Ukushayela + ngamanothi (amapheya ezingqimba ze-microvia, izindawo ezisebenzisa i-in-pad)

Faka Lezi Zimfuneko Zokwakha

• Uhlobo lokwakheka: Cacisa u-1+N+1 / 2+N+2 / 3+N+3 (noma ucele isincomo).
• Izidingo zokugcwalisa: Ipulaki ye-resin vs ukugcwalisa ngethusi, kanye nesidingo sokulinganisela kwezindawo ezisebenzisa i-pad.
• Ekupheleni kwendawo: ENIG / ENEPIG / OSP (njengoba kudingeka).
• Inani + umgomo wokulethwa: Uhlobo lwesibonelo uma kuqhathaniswa nobuningi bokukhiqiza.

Uma Udinga i-PCBA (Kunconywa i-Dense HDI)

• BOM nezinye izindlela ezivunyelwe (uma zikhona)
• Ifayela lokukhetha nokubeka (XY)
• Umdwebo wokuhlanganisa ngamanothi enqubo akhethekile

Ukuze uqalise, thumela i-RFQ yakho lapha: Thola Isilinganiso Esisheshayo.

Isifinyezo: I-HDI stackup ekwazi ukukalwa yakhelwe phezu kwemininingwane etholakalayo—isakhiwo se-microvia kanye nokugcwaliswa, i-impedance ehlolwayo, i-lamination symmetry, kanye nemithetho ye-DFM evikela isivuno. Uma ukwenziwa kanye nempendulo yokuhlanganiswa kuhambisana kusenesikhathi, unciphisa imijikelezo yokuphindaphinda, uzinzise ikhwalithi, futhi usheshise i-ramp to volume.