Magulu a Magawo

PCB yothamanga kwambiri

1. Kodi bolodi lolimba la PCB lomwe limakhala ndi mafunde ambiri ndi chiyani?

Bolodi yosindikizidwa yotumizira chizindikiro cha liwiro lalikulu yokhala ndi pafupipafupi yogwira ntchito ≥1GHz, yomwe imafuna zipangizo zokhala ndi dielectric constant yotsika (Dk
2. Kodi kusiyana kwakukulu pakati pa ma PCB amphamvu kwambiri ndi ma PCB wamba ndi kotani?

Imagwiritsa ntchito zipangizo zotsika mtengo (monga Rogers 4350B), yokhala ndi kulekerera kwa mzere ±0.01mm, kulondola kwa mtunda pakati pa chizindikiro ndi ±5%, komanso kulondola kwa kuletsa kugwedezeka ±5Ω.
3. Kodi ndi zochitika ziti zomwe zimagwiritsidwa ntchito nthawi zambiri pa ma PCB omwe ali ndi ma frequency apamwamba?

Malo osungira ma 5G (24.25-52.6GHz), mauthenga a satellite (Ka band 26.5-40GHz), radar ya ma millimeter-wave (77GHz), malo osungira deta othamanga kwambiri (100Gbps+).
4. Kodi kukhulupirika kwa chizindikiro cha ma PCB amphamvu kwambiri kumatanthauzidwa bwanji?

Kuchuluka kwa deta kumayesedwa pogwiritsa ntchito magawo monga kutayika kwa insertion (
5. Ndi zinthu ziti zomwe zimapangitsa kuti ma PCB olimba kwambiri awonongeke ndi dielectric boards?

Zokhudzana ndi kapangidwe ka mamolekyulu, kutentha (Df imawonjezeka ndi 3%-5% pa kukwera kulikonse kwa 10℃), ndi pafupipafupi (Df imawonjezeka ndi sikweya ya pafupipafupi).
6. Kodi zipangizo za PCB zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri ndi ziti?

Rogers 4350B (Dk=3.48, Df=0.0037), Taconic TLY-5 (Dk=2.2, Df=0.0009), Isola 370HR (Dk=3.6, Df=0.004).
7. Kodi zinthu zosiyanasiyana zimakhudza bwanji kutumiza kwa chizindikiro?

Zipangizo za Dk zochepa zimachepetsa kuchedwa kwa kutumiza (monga, zipangizo za Dk=2.2 zimachedwa ndi 25% mwachangu kuposa FR-4), ndipo Df yochepa imachepetsa kuchepa kwa chizindikiro (kutayika kumakhala kotsika ndi 70% kuposa FR-4 pamene Df=0.001).
8. Kodi kuyamwa kwa madzi kwa zinthu kumakhudza bwanji ma PCB amphamvu kwambiri?

Kuyamwa madzi >0.5% kumayambitsa kusinthasintha kwa Dk kupitirira 5%. Ndikofunikira kugwiritsa ntchito zipangizo zomwe zimayamwa madzi
9. Kodi mungasankhe bwanji zipangizo za PCB zoyenera ma millimeter-wave frequency bands?

Ikani patsogolo zinthu zomwe zili ndi Dr
10. Kodi ntchito ya zipangizo zodzaza ndi ceramic ndi yotani pakugwira ntchito kwa zipangizo zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri?

Kuwonjezera ma ceramic a aluminiyamu oxide kumatha kuwonjezera Tg ya zinthuzo kufika pa 280℃+ ndikuchepetsa coefficient of thermal expansion (CTE) kufika pa 2-3ppm/℃, zomwe zimapangitsa kuti kutentha kukhale kolimba.
11. Kodi mtengo wocheperako wa kapangidwe ka mzere/kutalika kwa ma PCB okhala ndi ma frequency apamwamba ndi wotani?

Mu njira zachizolowezi, m'lifupi/kutalika kwa mzere ≥50μm; njira zapamwamba zimatha kufika 30μm, zomwe zimafuna kufananiza kulamulira kwa impedance.
12. Kodi mfundo zazikulu zotani pakupanga ma PCB okhala ndi zigawo zambiri zapamwamba?

Gwiritsani ntchito mikwingwirima yofanana, yokhala ndi mtunda wa ≤0.1mm pakati pa zigawo zamphamvu ndi nthaka ndi ≤0.05mm pakati pa zigawo za chizindikiro ndi zofotokozera kuti muchepetse kusokoneza kwa maginito.
13. Kodi zotsatira za ma vias pa ma signals amphamvu kwambiri ndi zotani komanso momwe mungawakonzere bwino?

Ma vias wamba amachititsa kutayika kwa -3dB pa 10GHz. Kugwiritsa ntchito kubowola kumbuyo (kuchotsa kutalika kwa stub) kungachepetse kutayika ndi kupitirira 60%.
14. Kodi mfundo zoyendetsera ma PCB amphamvu kwambiri ndi ziti?

Pewani kuyendetsa ngodya yakumanja (kuwunikira kumawonjezeka ndi 15%), yikani patsogolo ngodya za 45°; lamulirani malo ozungulira chizindikiro
15. Kodi zofunikira zapadera pakubowola ma PCB othamanga kwambiri ndi ziti?

Gwiritsani ntchito kuboola kwa CO₂ laser (kulondola kwa aperture ±5μm) kuti mupewe kusokonezana ndi kuboola kwa makina, ndi mabowo okhala ndi makoma okhwima Ra≤1.2μm.
16. Kodi njira yopangira ma electroplating imakhudza bwanji magwiridwe antchito apamwamba?

Gwiritsani ntchito chopangira mkuwa chopanda ma electroless + chopangira mkuwa chopanda ma electroplating, wongolerani kuuma kwa mkuwa Rz≤2μm kuti muchepetse kutayika kwa pamwamba (kutayika kumawonjezeka ndi 10% pa kukwera kulikonse kwa 1μm kwa kuuma).
17. Kodi mungasankhe bwanji kumaliza pamwamba pa ma PCB apamwamba kwambiri?

Golide wothira nickel wopanda ma electroless (ENIG) wokhala ndi makulidwe a 1-3μm ndi kukana kukhudzana
18. Kodi njira yopangira lamination imakhudza bwanji magwiridwe antchito a ma board amphamvu kwambiri?

Kutentha kwa lamination kuyenera kulamulidwa pa Tg+30℃ (monga, kutentha kwa lamination kwa Rogers 4350B 210-230℃), ndi kupanikizika kwa 5-8MPa kuti tipewe kufalikira kwa lamination.
19. Kodi mungazindikire bwanji zolakwika zopanga ma PCB apamwamba kwambiri?

Gwiritsani ntchito TDR (reflectometer ya nthawi) kuti muzindikire kupitiriza kwa impedance, X-ray kuti muzindikire kudzera mu kupotoka kwa malo (kololedwa ±0.05mm), ndi AOI kuti muzindikire kulekerera kwa mzere m'lifupi.
20. Kodi mungachepetse bwanji kutayika kwa ma PCB ogwiritsidwa ntchito pafupipafupi?

Gwiritsani ntchito zipangizo zochepa za Df, konzani kuuma kwa foil yamkuwa (foil yamkuwa ya RTF ili ndi kutayika kotsika ndi 30% kuposa foil yamkuwa ya RA), ndipo fupikitsani kutalika kwa trace.
21. Kodi mungathetse bwanji vuto la kutayika kwakukulu kwa ndalama zomwe mwabweza?

Chongani kusagwirizana kwa impedance (monga ma vias, zolumikizira), onetsetsani kuti impedance yapita
22. Kodi njira zolankhulirana ndi kuletsa anthu ndi ziti?

Kutalika kwambiri kwa mzere wofanana kumapangitsa kuti mawu amveke bwino. Kuonjezera mtunda wa mzere kufika pa mfundo ya 3W (W ndi m'lifupi mwa mzere) ndi kuwonjezera kugawanika kwa nthaka kungachepetse mawu amveke bwino ndi 20dB.
23. Kodi mungathane bwanji ndi mavuto a kuwunikira kwa zizindikiro zama frequency apamwamba?

Imani ndi ma resistors ofanana (kukana = kuponderezedwa kwa mzere wotumizira) ndikugwiritsa ntchito kusintha kwa mzere pang'onopang'ono kuti muchepetse coefficient yowunikira pansi pa 0.1.
24. Kodi mphamvu ya kuwala kwa maginito pa ma PCB amphamvu kwambiri ndi yotani ndipo mungadziteteze bwanji ku mphamvuyo?

Chishango chokhala ndi malo otsetsereka (mpata
25. Kodi njira zazikulu zochotsera kutentha kwa ma PCB okhala ndi ma frequency apamwamba ndi ziti?

Kuyendetsa kudzera mu foil yamkuwa (kuyendetsa kutentha kwa 398W/mK) kumawerengera 70%, kuyendetsa kwa zinthu 20%, ndi convection/radiation 10%.
26. Kodi mungapange bwanji kapangidwe ka kutentha kwa ma PCB apamwamba kwambiri?

Wonjezerani kutentha kudzera mu kuchulukana (≥200/cm²), gwiritsani ntchito foil yokhuthala yamkuwa (≥3oz), ndipo phatikizani ndi malo otenthetsera kuti muchepetse kukana kutentha ndi 40%.
27. Kodi kuyerekeza kwa kutentha kwa zinthu zosiyanasiyana ndi kotani?

Chotsukira cha aluminiyamu (170W/mK) > chotsukira cha mkuwa (398W/mK) > chamba wamba cha FR-4 (0.35W/mK).
28. Kodi kutentha kumakhudza bwanji magwiridwe antchito a ma PCB amphamvu kwambiri?

Pa kukwera kulikonse kwa 10℃, Dk imawonjezeka ndi 0.5%-1%, ndipo Df imawonjezeka ndi 3%-5%. Kutentha koyenera kogwirira ntchito ndi
29. Kodi mungadziwe bwanji kukula ndi mtunda wa ma heater vias?

Kudzera m'mimba mwake 0.3-0.5mm, mtunda wa ≤1mm kuti muwonetsetse kuti njira zoyendetsera kutentha zikuyenda bwino komanso kuchepetsa kukana kutentha ndi 30%.
30. Kodi ndi zinthu ziti zazikulu zoyesera ma PCB apamwamba kwambiri?

Kuyesa kwa S-parameter (S11, S21, ndi zina zotero), kuyesa kwa impedance, kuyesa kutayika kwa dielectric, kuyesa kwa kayendedwe ka kutentha (-40℃ ~ 125℃, ma cycle 500).
31. Kodi tanthauzo la magawo a S ndi miyezo yoyesera ndi chiyani?

S11 (kutayika kobwerera), S21 (kutayika kolowera). Mafupipafupi oyesera amaphimba gulu logwirira ntchito ndi kulondola kwa ±0.5dB.
32. Kodi mungatani kuti muyese kudalirika kwa ma PCB omwe ali ndi ma frequency apamwamba?

Yesani kutentha konyowa (85℃/85% RH, 1000h) ndi kuyesa kupopera mchere (5% NaCl, 24h) kuti muwone ngati zinthuzo sizikukhudzidwa ndi nyengo.
33. Kodi mfundo ndi kagwiritsidwe ntchito ka mayeso a TDR ndi kotani?

Imayesa mawonekedwe a mafunde owunikira popereka chizindikiro cha sitepe kuti ipeze kusagwirizana kwa impedance, ndi resolution ya mpaka 0.1mm.
34. Kodi njira zoyesera za EMC za ma PCB apamwamba ndi ziti?

Gwiritsani ntchito zipinda zopanda mphamvu kuti muyese mpweya woipa (≤-40dBμV/m@1GHz) ndi kuyesa mphamvu ya chishango (>60dB).
35. Kodi mfundo zazikulu za njira yosokera ma PCB apamwamba ndi ziti?

Gwiritsani ntchito soldering ya nayitrogeni (oxygen content
36. Kodi kusankha cholumikizira kumakhudza bwanji ma signali amphamvu kwambiri?

Sankhani zolumikizira zama frequency apamwamba monga SMA, 2.92mm, 1.85mm, ndi zina zotero, ndi ma frequency ogwiritsira ntchito omwe amaphimba band yofunikira ndi kutayika kwa insertion
37. Kodi mungachepetse bwanji kutayika kwa chizindikiro panthawi yomanga?

Onetsetsani kuti pali kufananiza kwa impedance pakati pa zolumikizira ndi ma PCB, ndikuyeretsa malo ofikira mutatha kusungunula kuti muchepetse kutayika ndi 15%.
38. Kodi mavuto otani omwe amakumana nawo pakugwiritsa ntchito ma PCB amphamvu kwambiri m'malo osungira ma 5G ndi ati?

Ndikufunika kukwaniritsa zofunikira za gulu la 24-52GHz ndikuthetsa mavuto okhudzana ndi kutentha (kuchuluka kwa mphamvu >10W/cm²) ndi mavuto a miniaturization.
39. Kodi zofunikira zapadera za ma PCB a radar a millimeter-wave a magalimoto ndi ziti?

Yambani ndi satifiketi ya AEC-Q200, yokhala ndi kutentha kwa -40℃ ~125
40. Kodi miyezo yapadziko lonse lapansi ya ma PCB amphamvu kwambiri ndi iti?

IPC-4101 (mafotokozedwe a zinthu zoyambira), IPC-6012 (muyezo wovomerezeka ndi bolodi lolimba), IEEE 802.3 (muyezo wa chizindikiro cha liwiro lalikulu).
41. Kodi zofunikira zapadera za ma PCB apamwamba ankhondo ndi ziti?

Zimagwirizana ndi MIL-PRF-55110 (ma microwave circuits), kutentha kwa ntchito -55℃ ~125℃, zidapambana mayeso a mchere ndi nkhungu.
42. Kodi miyezo ya satifiketi ya ma PCB apamwamba kwambiri mumakampani opanga magalimoto ndi iti?

Zimakwaniritsa zofunikira za AEC-Q200 (satifiketi ya gawo lopanda kanthu) ndi ISO 26262 (chitetezo chogwira ntchito).
43. Kodi ndi zinthu ziti zomwe makampani amagwiritsa ntchito pa ma PCB apamwamba kwambiri pa kulumikizana kwa 5G?

Imakwaniritsa 3GPP TR 38.810 (zipangizo za siteshoni yoyambira), kutayika kwa insertion -15dB.
44. Kodi miyezo yovomerezeka ya ma PCB okwera kwambiri a ndege ndi iti?

Ikutsatira NASA-STD-8739.3 (zipangizo zamagetsi), idapambana mayeso otentha onyowa a maola 1000, kusintha kwa Drk
45. Kodi njira ya R&D ya zipangizo za PCB za m'badwo wotsatira ndi yotani?

Zipangizo zotayika zochepa kwambiri (Df
46. Kodi ubwino wa zinthu zolimbikitsidwa ndi mpweya wa nanotube ndi wotani?

CTE yatsika kufika pa 1ppm/℃, kutentha kwa mpweya kwakwera kufika pa 100W/mK, pamene ikusungabe kutentha kochepa (2.8).
47. Kodi kusiyana kwa magwiridwe antchito pakati pa zipangizo zosinthasintha zama frequency apamwamba ndi zinthu zolimba ndi kotani?

Zipangizo zosinthasintha zimakhala ndi DD (3.0-3.5) yokwera pang'ono ndipo DF ndi 20%-30% yokwera, koma zimathandizira kuyendetsa zinthu mu 3D.
48. Kodi njira yogwiritsira ntchito zinthu zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri pogwiritsa ntchito bio-based high-frequency ndi yotani?

Zipangizo zosawononga chilengedwe (monga nsalu zopangidwa ndi ulusi) zokhala ndi Dr=3.2 ndi Df=0.004, zoyenera kugwiritsidwa ntchito pa zamagetsi.
49. Kodi zinthu zopangidwa ndi ceramic zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri zimakhala ndi makhalidwe otani?

Al₂O₃ ceramic substrate yokhala ndi Dr=9.8 ndi kutentha kwa 24W/mK, yoyenera kuphatikiza zida zamagetsi.
50. Kodi mapulogalamu odziwika bwino opanga ma PCB apamwamba ndi ati?

Altium Designer, Cadence Allegro, ANSYS HFSS (electromagnetic simulation), Keysight ADS (circuit simulation).
51. Kodi mungagwiritse ntchito bwanji HFSS poyeserera pafupipafupi kwambiri?

Pangani chitsanzo cha 3D, khazikitsani magawo azinthu ndi mikhalidwe ya malire, yesani magawo a S ndi kugawa kwamunda ndi cholakwika
52. Kodi ntchito za pulogalamu ya ADS pakupanga mapulogalamu othamanga kwambiri ndi ziti?

Imachita kuyerekezera kwa magawo a circuit, imakonza ma network ofanana, imaneneratu kutayika kwa insertion ndi kutayika kobwerera, komanso imathandizira kusanthula kwa ma S-parameter ambiri.
53. Kodi kulondola kwa gawo la kuwerengera impedance mu pulogalamu yopangira PCB ndi kotani?

Cholakwika mkati mwa ±3Ω, chomwe chikufunika kulinganizidwa ndi magawo enieni a njira (monga kukhwima kwa foil yamkuwa, makulidwe a dielectric).
54. Kodi mungakonze bwanji kapangidwe kake pogwiritsa ntchito zotsatira zoyeserera?

Sinthani kapangidwe ka trace kutengera kugawa kwa malo, konzani kufananiza kwa impedance kudzera mu kusanthula kwa ma parameter, ndikukonza mobwerezabwereza kuti muchepetse kutayika.
55. Kodi zida zofunika kwambiri zopangira ma PCB apamwamba ndi ziti?

Makina obowola a laser (olondola ± 5μm), chotsukira cha vacuum, makina odulira olondola kwambiri (kulekerera m'lifupi mwa mzere ± 0.01mm).
56. Kodi kusiyana pakati pa kuboola CO₂ laser ndi kuboola UV laser ndi kotani?

Laser ya CO₂ yoyenera matabwa okhuthala (>1mm) okhala ndi mabowo akuluakulu (≥0.3mm); Laser ya UV yoyenera matabwa opyapyala (
57. Kodi magawo ofunikira a laminator ya vacuum ndi ati?

Digiri ya vacuum
58. Kodi chofunika cha etch factor pa makina odulira olondola kwambiri ndi chiyani?

Etch factor ≥3:1, kuonetsetsa kuti mbali etch kuchuluka
59. Kodi mphamvu yowunikira ya zida za AOI pa ma PCB apamwamba ndi yotani?

Imatha kuzindikira kutalika kwa mzere/kusiyana kwa malo (± 0.005mm), ma shorts/ma circuits otseguka, kukula kochepa kwa chilema ndi 0.01mm.
60. Kodi zofunikira pa chilengedwe cha zipangizo za PCB zomwe zimagwira ntchito pafupipafupi ndi ziti?

Zimagwirizana ndi RoHS 2.0 (zimaletsa zinthu 6 zoopsa monga lead ndi mercury), kuchuluka kwa halogen
61. Kodi mungapange bwanji ma PCB obiriwira omwe amapangidwa pafupipafupi kwambiri?

Gwiritsani ntchito soldering yopanda lead, kuchuluka kwa zitsulo zolemera 95%).
62. Kodi njira yotayira zinyalala pa ma PCB okhala ndi ma frequency apamwamba ndi iti?

Bwezerani mkuwa kudzera mukuphwanya thupi + kusungunuka kwa mankhwala (chiŵerengero chobwezeretsa > 98%), ndipo sungani zinyalala za utomoni mosavulaza.
63. Kodi kugwiritsa ntchito zinthu zomwe zimawola mu ma PCB amphamvu kwambiri n'kotani?

Zipangizo zopangidwa ndi polylactic acid zokhala ndi Dr=3.3 ndi Df=0.005, kuchuluka kwa kuwonongeka kwa > 80% mkati mwa masiku 180 mutagwiritsa ntchito.
64. Kodi zofunikira pa chilengedwe zimakhudza bwanji ndalama zambiri za PCB?

Njira zachilengedwe zimawonjezera ndalama ndi 10%-15%, koma kutsatira malamulo kumapewa zoopsa za chilango.
65. Kodi AI imathandiza bwanji pakupanga ma PCB omwe amagwira ntchito pafupipafupi?

Ma algorithm a AI amakonza topology ya njira zoyendetsera, kuchepetsa nthawi yopangira ndi manja ndi 50% ndikutaya chizindikiro ndi 15%.
66. Kodi kugwiritsa ntchito ukadaulo wa kusindikiza kwa 3D mu ma PCB apamwamba ndi kotani?

Imathandizira mapangidwe ovuta a 3D okhala ndi kulondola kolumikizana kwa interlayer ±0.05mm, koma kutayika kwa zinthu pakadali pano kuli kwakukulu (Df=0.01).
67. Kodi zofunikira za ma PCB apamwamba kwambiri mu kulumikizana kwa quantum ndi ziti?

Imafuna zinthu zotayika zochepa kwambiri (Df
68. Kodi mavuto a ma frequency band a terahertz pa zipangizo za PCB ndi otani?

Imafuna zipangizo zokhala ndi Dr
69. Kodi njira yopangira pamodzi ma chip packing ndi ma PCB apamwamba ndi yotani?

Amagwiritsa ntchito ukadaulo wa ma CD a 2.5D/3D kuti afupikitse njira za chizindikiro ndikuchepetsa kutayika kwa makina ndi 30%.
70. Kodi ndi zinthu ziti zofunika kukonza tsiku ndi tsiku pa ma PCB omwe amagwira ntchito pafupipafupi?

Pewani malo otentha kwambiri komanso chinyezi chambiri (kutentha
71. Kodi mungachepetse bwanji zotsatira za tizilombo toyambitsa matenda m'mabodi olimba a PCB omwe amakhala pafupipafupi?

Gwiritsani ntchito kuboola kumbuyo kuti muchotse zochulukirapo kudzera mu zipilala, zokhala ndi kutalika kwa zipilala ≤1/8λ; gwiritsani ntchito soldering yodutsa m'mabowo kuti muchepetse mphamvu ya tizilombo toyambitsa matenda.
72. Kodi mungasankhe bwanji zipangizo za PCB za millimeter-wave frequency bands?

Ikani patsogolo zinthu za low Dr (
73. Kodi mungatsimikizire bwanji kufanana kwa impedance kwa ma PCB apamwamba kwambiri?

Yesani ma S-parameter ndi network analyzer, yomwe imafuna S11 ≤ -15dB ndi vuto la impedance la khalidwe ±5Ω; gwiritsani ntchito TDR kuti muwone reflection coefficient
74. Kodi ndi magawo otani ofunikira pakupanga ma PCB okhala ndi zigawo zambirimbiri?

Kukhuthala kwa gawo la Dielectric 0.05-0.2mm, kukhwima kwa foil ya mkuwa Ra≤0.5μm; zizindikiro za gawo loyandikana nazo zozungulira, mtunda wa mphamvu/nthaka
75. Kodi mungatani kuti muthane ndi kutayikira kwa maginito mu ma PCB amphamvu kwambiri?

Gwiritsani ntchito zitini zotchingira zitsulo (mphamvu yotetezera ≥80dB) zokhala ndi m'lifupi wa mpata
76. Kodi zofunikira pa mtunda wa ma routing pa zizindikiro zosiyana pa ma PCB amphamvu kwambiri ndi ziti?

Kutalikirana kwa mzere ≥3 × m'lifupi mwa mzere, cholakwika cha kutalika
77. Kodi kutsirizitsa kwa PCB pamwamba kumakhudza bwanji zizindikiro zama frequency apamwamba?

ENIG imapereka malo osalala komanso kutayika kochepa; makulidwe owonda a OSP amagwirizana ndi ntchito zama frequency apamwamba, kupewa kutayika kwa maginito kuchokera ku zigawo za nickel.
78. Kodi mungakonze bwanji kapangidwe ka PCB kamene kamapangidwa pafupipafupi kwambiri kudzera mu kuyerekezera?

Gwiritsani ntchito HFSS/CST poyesa ma electromagnetic a full-wave kuti mutsimikizire SI/PI; chitani kusanthula kwa S-parameter sweep pa ≥10 frequency points.
79. Kodi mungachepetse bwanji kupsinjika kwa kutentha m'mabodi olimba a PCB omwe amapangidwa pafupipafupi?

Sankhani zipangizo zokhala ndi CTE ≤15ppm/℃, onjezerani kutentha kudzera mu kuchulukana (≥20/cm²), ndipo gwiritsani ntchito matabwa okhala ndi mkuwa okhala ndi zitsulo.
80. Kodi mungachepetse bwanji kutayika kwa dielectric mu ma PCB amphamvu kwambiri?

Gwiritsani ntchito zipangizo za PTFE zotsika Df; konzani makulidwe a dielectric layer kuti mukwaniritse mikhalidwe ya λ/4 resonance ndikuchepetsa kutayika kwa mphamvu.
81. Kodi kulekerera kwa kupanga kumakhudza bwanji magwiridwe antchito a PCB olimba pa bolodi lolimba?

Kulekerera kwa mzere m'lifupi ±0.02mm kumayambitsa impedance 波动 ±3Ω; kuleza mtima kwa makulidwe a dielectric ±0.01mm kumayambitsa kupotoka kwa Dk ±0.1, komwe kumafuna kuwongolera kokhwima.
82. Kodi mungathetse bwanji kusokonezeka kwa phokoso lamagetsi mu ma PCB amphamvu kwambiri?

Ikani zosakaniza za MLCC (10nF/100nF/1μF) pamalo olowera magetsi; gawani gawo la magetsi ndi mtunda wa ≥50mil pakati pa ma domain amagetsi.
83. Kodi mfundo zazikulu zotani pakupanga zida zoyesera za ma PCB olimba omwe amapangidwa pafupipafupi kwambiri?

Kulephera kwa kukhudzana ndi chogwirira ntchito

PCB yothamanga kwambiri

1. Kodi bolodi lolimba la PCB lomwe limakhala ndi mafunde ambiri ndi chiyani?

2. Kodi kusiyana kwakukulu pakati pa ma PCB amphamvu kwambiri ndi ma PCB wamba ndi kotani?

3. Kodi ndi zochitika ziti zomwe zimagwiritsidwa ntchito nthawi zambiri pa ma PCB omwe ali ndi ma frequency apamwamba?

4. Kodi kukhulupirika kwa chizindikiro cha ma PCB amphamvu kwambiri kumatanthauzidwa bwanji?

5. Ndi zinthu ziti zomwe zimapangitsa kuti ma PCB olimba kwambiri awonongeke ndi dielectric boards?

6. Kodi zipangizo za PCB zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri ndi ziti?

7. Kodi zinthu zosiyanasiyana zimakhudza bwanji kutumiza kwa chizindikiro?

8. Kodi kuyamwa kwa madzi kwa zinthu kumakhudza bwanji ma PCB amphamvu kwambiri?

9. Kodi mungasankhe bwanji zipangizo za PCB zoyenera ma millimeter-wave frequency bands?

10. Kodi ntchito ya zipangizo zodzaza ndi ceramic ndi yotani pakugwira ntchito kwa zipangizo zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri?

11. Kodi mtengo wocheperako wa kapangidwe ka mzere/kutalika kwa ma PCB okhala ndi ma frequency apamwamba ndi wotani?

12. Kodi mfundo zazikulu zotani pakupanga ma PCB okhala ndi zigawo zambiri zapamwamba?

13. Kodi zotsatira za ma vias pa ma signals amphamvu kwambiri ndi zotani komanso momwe mungawakonzere bwino?

14. Kodi mfundo zoyendetsera ma PCB amphamvu kwambiri ndi ziti?

15. Kodi zofunikira zapadera pakubowola ma PCB othamanga kwambiri ndi ziti?

16. Kodi njira yopangira ma electroplating imakhudza bwanji magwiridwe antchito apamwamba?

17. Kodi mungasankhe bwanji kumaliza pamwamba pa ma PCB apamwamba kwambiri?

18. Kodi njira yopangira lamination imakhudza bwanji magwiridwe antchito a ma board amphamvu kwambiri?

19. Kodi mungazindikire bwanji zolakwika zopanga ma PCB apamwamba kwambiri?

20. Kodi mungachepetse bwanji kutayika kwa ma PCB ogwiritsidwa ntchito pafupipafupi?

21. Kodi mungathetse bwanji vuto la kutayika kwakukulu kwa ndalama zomwe mwabweza?

22. Kodi njira zolankhulirana ndi kuletsa anthu ndi ziti?

23. Kodi mungathane bwanji ndi mavuto a kuwunikira kwa zizindikiro zama frequency apamwamba?

24. Kodi mphamvu ya kuwala kwa maginito pa ma PCB amphamvu kwambiri ndi yotani ndipo mungadziteteze bwanji ku mphamvuyo?

25. Kodi njira zazikulu zochotsera kutentha kwa ma PCB okhala ndi ma frequency apamwamba ndi ziti?

26. Kodi mungapange bwanji kapangidwe ka kutentha kwa ma PCB apamwamba kwambiri?

27. Kodi kuyerekeza kwa kutentha kwa zinthu zosiyanasiyana ndi kotani?

28. Kodi kutentha kumakhudza bwanji magwiridwe antchito a ma PCB amphamvu kwambiri?

29. Kodi mungadziwe bwanji kukula ndi mtunda wa ma heater vias?

30. Kodi ndi zinthu ziti zazikulu zoyesera ma PCB apamwamba kwambiri?

31. Kodi tanthauzo la magawo a S ndi miyezo yoyesera ndi chiyani?

32. Kodi mungatani kuti muyese kudalirika kwa ma PCB omwe ali ndi ma frequency apamwamba?

33. Kodi mfundo ndi kagwiritsidwe ntchito ka mayeso a TDR ndi kotani?

34. Kodi njira zoyesera za EMC za ma PCB apamwamba ndi ziti?

35. Kodi mfundo zazikulu za njira yosokera ma PCB apamwamba ndi ziti?

36. Kodi kusankha cholumikizira kumakhudza bwanji ma signali amphamvu kwambiri?

37. Kodi mungachepetse bwanji kutayika kwa chizindikiro panthawi yomanga?

38. Kodi mavuto otani omwe amakumana nawo pakugwiritsa ntchito ma PCB amphamvu kwambiri m'malo osungira ma 5G ndi ati?

39. Kodi zofunikira zapadera za ma PCB a radar a millimeter-wave a magalimoto ndi ziti?

40. Kodi miyezo yapadziko lonse lapansi ya ma PCB amphamvu kwambiri ndi iti?

41. Kodi zofunikira zapadera za ma PCB apamwamba ankhondo ndi ziti?

42. Kodi miyezo ya satifiketi ya ma PCB apamwamba kwambiri mumakampani opanga magalimoto ndi iti?

43. Kodi ndi zinthu ziti zomwe makampani amagwiritsa ntchito pa ma PCB apamwamba kwambiri pa kulumikizana kwa 5G?

44. Kodi miyezo yovomerezeka ya ma PCB okwera kwambiri a ndege ndi iti?

45. Kodi njira ya R&D ya zipangizo za PCB za m'badwo wotsatira ndi yotani?

46. ​​Kodi ubwino wa zinthu zolimbikitsidwa ndi mpweya wa nanotube ndi wotani?

47. Kodi kusiyana kwa magwiridwe antchito pakati pa zipangizo zosinthasintha zama frequency apamwamba ndi zinthu zolimba ndi kotani?

48. Kodi njira yogwiritsira ntchito zinthu zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri pogwiritsa ntchito bio-based high-frequency ndi yotani?

49. Kodi zinthu zopangidwa ndi ceramic zomwe zimagwiritsidwa ntchito pafupipafupi kwambiri zimakhala ndi makhalidwe otani?

50. Kodi mapulogalamu odziwika bwino opanga ma PCB apamwamba ndi ati?

51. Kodi mungagwiritse ntchito bwanji HFSS poyeserera pafupipafupi kwambiri?

52. Kodi ntchito za pulogalamu ya ADS pakupanga mapulogalamu othamanga kwambiri ndi ziti?

53. Kodi kulondola kwa gawo la kuwerengera impedance mu pulogalamu yopangira PCB ndi kotani?

54. Kodi mungakonze bwanji kapangidwe kake pogwiritsa ntchito zotsatira zoyeserera?

55. Kodi zida zofunika kwambiri zopangira ma PCB apamwamba ndi ziti?

56. Kodi kusiyana pakati pa kuboola CO₂ laser ndi kuboola UV laser ndi kotani?

57. Kodi magawo ofunikira a laminator ya vacuum ndi ati?

58. Kodi chofunika cha etch factor pa makina odulira olondola kwambiri ndi chiyani?

59. Kodi mphamvu yowunikira ya zida za AOI pa ma PCB apamwamba ndi yotani?

60. Kodi zofunikira pa chilengedwe cha zipangizo za PCB zomwe zimagwira ntchito pafupipafupi ndi ziti?

61. Kodi mungapange bwanji ma PCB obiriwira omwe amapangidwa pafupipafupi kwambiri?

62. Kodi njira yotayira zinyalala pa ma PCB okhala ndi ma frequency apamwamba ndi iti?

63. Kodi kugwiritsa ntchito zinthu zomwe zimawola mu ma PCB amphamvu kwambiri n'kotani?

64. Kodi zofunikira pa chilengedwe zimakhudza bwanji ndalama zambiri za PCB?

65. Kodi AI imathandiza bwanji pakupanga ma PCB omwe amagwira ntchito pafupipafupi?

66. Kodi kugwiritsa ntchito ukadaulo wa kusindikiza kwa 3D mu ma PCB apamwamba ndi kotani?

67. Kodi zofunikira za ma PCB apamwamba kwambiri mu kulumikizana kwa quantum ndi ziti?

68. Kodi mavuto a ma frequency band a terahertz pa zipangizo za PCB ndi otani?

69. Kodi njira yopangira pamodzi ma chip packing ndi ma PCB apamwamba ndi yotani?

70. Kodi ndi zinthu ziti zofunika kukonza tsiku ndi tsiku pa ma PCB omwe amagwira ntchito pafupipafupi?

71. Kodi mungachepetse bwanji zotsatira za tizilombo toyambitsa matenda m'mabodi olimba a PCB omwe amakhala pafupipafupi?

72. Kodi mungasankhe bwanji zipangizo za PCB za millimeter-wave frequency bands?

73. Kodi mungatsimikizire bwanji kufanana kwa impedance kwa ma PCB apamwamba kwambiri?

74. Kodi ndi magawo otani ofunikira pakupanga ma PCB okhala ndi zigawo zambirimbiri?

75. Kodi mungatani kuti muthane ndi kutayikira kwa maginito mu ma PCB amphamvu kwambiri?

76. Kodi zofunikira pa mtunda wa ma routing pa zizindikiro zosiyana pa ma PCB amphamvu kwambiri ndi ziti?

77. Kodi kutsirizitsa kwa PCB pamwamba kumakhudza bwanji zizindikiro zama frequency apamwamba?

78. Kodi mungakonze bwanji kapangidwe ka PCB kamene kamapangidwa pafupipafupi kwambiri kudzera mu kuyerekezera?

79. Kodi mungachepetse bwanji kupsinjika kwa kutentha m'mabodi olimba a PCB omwe amapangidwa pafupipafupi?

46. Kodi ubwino wa zinthu zolimbikitsidwa ndi mpweya wa nanotube ndi wotani?