PCB-ga dhoobada

1. Waa maxay agabka caadiga ah ee looxyada adag ee PCB-ga dhoobada ah?

Alaabada caadiga ah waxaa ka mid ah aluminium oksaydh (Al₂O₃, 60%-96% daahirnimo), aluminium nitride (AlN), iyo beryllium oxide (BeO, si tartiib tartiib ah ayaa loo beddelay sababtoo ah sunta). 96% aluminium oksaydhku wuxuu ka badan yahay 60% codsiyada.
2. Waa maxay gudbinta kulaylka ee walxaha kala duwan ee dhoobada?

Al₂O₃ (96%) waa qiyaastii 25W/m・K, AlN wuxuu gaaraa 170-230W/m・K, beryllium oxide (BeO) wuxuu gaaraa qiyaastii 250W/m・K.
3. Waa maxay isku-darka ballaarinta kulaylka ee looxyada adag ee PCB-ga dhoobada ah?

Aluminium oksaydh (6-7 ppm/°C), aluminium nitride (4.5 ppm/°C), aad uga hooseeya FR4's 18-22 ppm/°C.
4. Waa maxay iska caabbinta dahaarka ee walxaha dhoobada ah?

Heerkulka qolka, iska caabbinta dahaarka ee substrates-ka Al₂O₃ waa >10¹⁴Ω, kan substrates-ka AlN-na waa >10¹³Ω.
5. Waa maxay joogtada dielectric ee looxyada adag ee PCB-ga dhoobada ah?

Joogtada dielectric ee 96% aluminium oksaydhku waa qiyaastii 9.8 (1MHz), kan AlN-na waa qiyaastii 8.5 (1MHz).
6. Waa maxay nooca iska caabbinta heerkulka ee walxaha dhoobada ah?

Heerkulka hawlgalka: -55℃~300℃, waxay u adkeysan kartaa heerkulka muddada gaaban ee sarreeya oo ka badan 800℃.
7. Sidee ayay u adag yihiin walxaha dhoobada ah?

Adkaanshaha Mohs waa 6-9, aluminium oksaydh (96%) wuxuu gaaraa heerka 7, iyadoo ay adag tahay in la farsameeyo.
8. Waa maxay cufnaanta walxaha dhoobada ah?

Al₂O₃ (96%) waa qiyaastii 3.85g/cm³, AlN-na waa qiyaastii 3.26g/cm³.
9. Maxay u yihiin looxyada adag ee PCB-ga dhoobada ah ee ku habboon codsiyada soo noqnoqda badan?

Lumis dielectric oo hooseeya (tanδ＜0.002), dib u dhac yar oo gudbinta calaamadaha ah.
10. Sidee bay u nuugaan biyaha substrate-ka dhoobada ah?

Heerka nuugista biyaha
11. Waa maxay hababka wax soo saarka ee looxyada adag ee PCB-ga dhoobada ah?

Habka filimka qaro weyn (daabacaadda shaashadda), habka filimka khafiifka ah (tuurista/uumi-baxa), habka isku-darka (HTCC/LTCC), iwm.
12. Waa maxay faraqa u dhexeeya hababka HTCC iyo LTCC?

Heerkulka sintering-ka HTCC waa 1500-1600℃, LTCC waa 850-900℃; LTCC waxay ku dari kartaa qaybaha aan firfircooneyn qiimo sare.
13. Waa maxay ballaca/kala fogaanshaha xariiqda ugu yar ee substrate-ka dhoobada ah?

Habka dhuuban ee filimka wuxuu gaari karaa ballaca/fogaanta khadka oo ah 10μm/10μm, habka dhuuban ee filimkana waa qiyaastii 100μm/100μm.
14. Waa maxay dhexroorka godka qodista ugu yar ee looxyada adag ee PCB-ga dhoobada ah?

Dhexroorka ugu yar ee daloolka loogu talagalay qodista laysarka waa 50μm, qodista farsamadana waa 100μm.
15. Waa maxay hababka caadiga ah ee loo adeegsado biraha dusha sare ee walxaha dhoobada ah?

Naxaasta isku xidhka tooska ah (DBC), birta firfircoon ee la shito (AMB), daabacaadda filim qaro weyn.
16. Waa maxay dhumucda lakabka naxaasta ah ee habka DBC?

Dhumucda lakabka naxaasta ee caadiga ah waa 0.1-0.3mm, ilaa 0.5mm ugu badnaan.
17. Waa maxay faa'iidooyinka habka AMB?

Xoogga isku xidhka > 25N/mm, waqtiyada wareegga kulaylka ayaa ka badan 1000 jeer (-40℃~150℃).
18. Waa maxay qallafsanaanta dusha sare ee Ra qiimaha substrate-ka dhoobada ah?

Habka khafiifka ah ee Ra
19. Waa maxay hababka jarista ee loo isticmaalo substrates-ka dhoobada ah?

Jarista laysarka, jarista, jarista farsamada. Saxnaanta jarista laysarka waa ± 25μm.
20. Waa maxay wax-soo-saarka guud ee wax-soo-saarka ee looxyada adag ee PCB-ga dhoobada ah?

Wax-soo-saarka habka dhuuban ee filimka khafiifka ah waa qiyaastii 85%-90%, habka dhuuban ee filimkana waa qiyaastii 90%-95%.
21. Maxaa lagu xusi karaa naqshadaynta looxyada adag ee PCB-ga dhoobada ah?

Ka fogow naqshad xagal degdeg ah, radius fillet ah oo ka badan 0.2mm; ku dar godad kala firdhinta kulaylka meelaha ay ka jirto cadaadis kuleyl oo xooggan.
22. Sidee bay walxaha dhoobada ah ugu xiran yihiin jajabyada?

Iyada oo loo marayo isku xidhka jajabka rogrogmada, isku xidhka siligga, alxanka eutectic, iwm. Isku xidhka jajabka rogrogmada wuxuu leeyahay iska caabin kuleyl oo hooseeya ilaa 0.5℃/W.
23. Waa maxay codsiyada soo noqnoqda sare ee looxyada adag ee PCB-ga dhoobada ah ay ku habboon yihiin?

Saldhigyada saldhigga 5G (lumitaanka calaamadda
24. Waa maxay doorka substrates-ka dhoobada ah ee aaladaha korontada?

Yaree iska caabbinta kulaylka. Isticmaalka substrates-ka AlN ee modules-ka IGBT waxay yareyn kartaa iska caabbinta kulaylka ilaa 1.5℃/W.
25. Looxyada adag ee PCB-ga dhoobada ah ma loo isticmaali karaa qalabka elektaroonigga ah ee baabuurta?

Waxaa loo isticmaali karaa cutubyada xakamaynta matoorka (ECUs), oo leh iska caabin heerkul sare oo aad u fiican iyo iska caabin gariir.
26. Waa maxay isticmaalka substrates-ka dhoobada ah ee goobta LED-ka?

Substrates-ka kala firdhinta kulaylka LED-ka oo awood sare leh, oo leh iska caabbinta kulaylka oo laga dhimi karo wax ka hooseeya 3℃/W.
27. Waa maxay awoodda ugu badan ee qaadida hadda ee looxyada adag ee PCB-ga dhoobada ah?

Foornada naxaasta ah ee 1 oz ee hoos timaada heerkulka 10 ℃, ballac xariiq ah oo 1mm ah ayaa qaadi kara qiyaastii 2A.
28. Sidee loo gaaraa naqshad lakab badan leh oo loogu talagalay walxaha dhoobada ah?

Iyada oo la isku darayo hababka isku-dubaridka, LTCC waxay gaari kartaa in ka badan 100 lakab ugu badnaan.
29. Waa maxay xoogga dabacsan ee looxyada adag ee PCB-ga dhoobada ah?

Xoogga laalaabka ee Al₂O₃ (96%) >300MPa, iyo kan AlN >350MPa.
30. Waa maxay faa'iidooyinka walxaha dhoobada ah ee hawada sare?

Iska caabbinta shucaaca (waxay u adkeysan kartaa qiyaasta 10⁶Gy), miisaan fudud (cufnaanta qiyaastii 1/3 ee walxaha birta ah).
31. Sidee loo sameeyaa tijaabooyinka isku halaynta ee looxyada adag ee PCB-ga dhoobada ah?

Tijaabada wareegga kulaylka (-40℃~125℃, 1000 jeer), tijaabada kulaylka qoyan (85℃/85% RH, 1000h).
32. Waa maxay qaabka wareegga kulaylka ee walxaha dhoobada ah?

Dildilaaca lakabka birta (Al₂O₃ DBC waxay qaadataa waqtiyo wareeg ah oo ku dhaca substrate qiyaastii 500-800 jeer).
33. Waa maxay danab u adkeysan kara dahaarka ee looxyada adag ee PCB-ga dhoobada ah?

Dhumucda 1mm waxay u adkeysan kartaa ≥5kV, danab qayb ahaan ka soo baxa dheecaanka ayaa ka badan 2kV.
34. Waa maxay heerka tijaabada dhejiska ee walxaha dhoobada ah?

Tijaabada diirka cajaladda (cajalad 3M 610 ah), ma jirto kala-goyn lakab bir ah.
35. Waa maxay cimriga adeegga looxyada adag ee PCB-ga dhoobada ah?

Xaaladaha shaqada ee caadiga ah, waxay gaari kartaa in ka badan 10 sano, xaaladaha heerkulka sare iyo qoyaanka sare, waxaa loo soo gaabiyaa 5 sano.
36. Sidee loo ogaadaa cilladaha gudaha ee walxaha dhoobada ah?

Ogaanshaha raajada X-ray, mikroskoobka iskaanka ultrasonic (C-SAM), oo leh xallin ilaa 10μm.
37. Waa maxay heerka tijaabada gariirka ee looxyada adag ee PCB-ga dhoobada ah?

Gariirka sinusoidal 5-2000Hz, dardargelin 5g, oo soconaya 2 saacadood iyada oo aan lahayn dildilaacyo.
38. Waa maxay waqtiga tijaabada buufinta milixda ee walxaha dhoobada ah?

Tijaabada buufinta milixda 96 saacadood (5% xalka NaCl), ma jiro daxal ku yimaada lakabka birta.
39. Waa maxay heerka ilaalinta ESD ee looxyada adag ee PCB-ga dhoobada ah?

Qaabka jirka aadanaha (HBM) >2kV, qaabka mashiinka (MM) >200V.
40. Waa maxay xaaladaha tijaabada shoogga kulaylka ee substrates-ka dhoobada ah?

-40℃~150℃, waqtiga beddelka
41. Waa maxay faraqa kharashka ee u dhexeeya looxyada adag ee PCB-ga dhoobada ah iyo FR4?

Qiimaha walxaha dhoobada ah waa 5-10 jeer ka badan FR4, inta badan waxaa sabab u ah agabyada iyo hababka adag.
42. Waa maxay hababka lagu dhimo kharashka looxyada adag ee PCB-ga dhoobada ah?

Wax soo saar ballaaran, hagaajinta habka (sida isticmaalka filim qaro weyn halkii laga isticmaali lahaa filim khafiif ah), xulashada agab qiimo jaban (sida 60% aluminium oksaydh).
43. Waa maxay faa'iidooyinka substrate-ka dhoobada ah marka la barbar dhigo substrate-ka birta ah?

Waxqabadka dahaarka oo ka wanaagsan (dusha sare ee biraha waxay u baahan yihiin lakab dahaar), iyo isku-darka ballaarinta kulaylka ayaa si aad ah ula jaanqaadaya jajabyada.
44. Waa maxay qiimeynta kharashka ee agabka kala duwan ee dhoobada?

Aluminium oksaydh (60%)
45. Waa maxay arrimaha saameeya qiimaha ee looxyada adag ee PCB-ga dhoobada ah?

Nooca agabka, kakanaanta habka, tirada lakabyada, cabbirka, tirada dalabka.
46. Ma lagu dari karaa walxaha dhoobada ah iyo PCB-yada dabacsan?

Waxaa lagu gaari karaa habka adag ee dabacsan, iyadoo qiimaha lagu kordhinayo 20%-30%.
47. Waa maxay saamiga kharashka qashinka ee looxyada adag ee PCB-ga dhoobada ah?

Waxay ka dhigan tahay qiyaastii 15%-20% wadarta kharashka, horumarinta wax-soo-saarkana si weyn ayay u yareyn kartaa.
48. Waa maxay heerka qiimaha ee lagu soo saaro walxaha dhoobada ah ee la isku qurxiyo?

Marka tirada dalabku ka badato 5,000 oo xabbo, qiimaha cutubku si weyn ayuu hoos ugu dhacaa.
49. Qiimaha cilmi-baarista iyo horumarinta ee looxyada adag ee PCB-ga dhoobada ma sarreeyaa?

Wareegga horumarinta dheer (3-6 bilood), kharashka caaryada oo sarreeya (qiyaastii 50,000-100,000 yuan).
50. Waa maxay isbarbardhigga kharashka kala-baxa kulaylka ee u dhexeeya walxaha dhoobada ah iyo PCB-yada ku salaysan aluminiumka?

Waxqabadka kala-baxa kulaylka ee substrates-ka AlN waa 3 jeer ka PCB-yada ku salaysan aluminiumka, laakiin qiimuhu waa 4 jeer ka sarreeya.
51. Sidee loo rakibaa looxyada adag ee PCB-ga dhoobada ah?

Waxaa lagu hagaajiyaa boolal ama waxaa lagu xiraa dhejis kuleyliye ah (iska caabbinta kulaylka
52. Waa maxay shuruudaha heerkulka alxanka ee substrate-ka dhoobada ah?

Heerkulka ugu sarreeya ee alxanka dib-u-warshadaynta: 240-260℃, muddada
53. Looxyada adag ee PCB-ga dhoobada ma dib loo shaqeyn karaa?

Dib loo shaqeyn karo, laakiin heerkulka sare wuxuu sababi karaa dildilaaca dhoobada oo leh heer guul ah oo qiyaastii ah 70%.
54. Sidee loo nadiifiyaa dusha sare ee walxaha dhoobada ah?

Ku nadiifi nadiifinta ultrasonic-ka IPA (isopropyl alcohol) muddo ka yar 10 daqiiqo.
55. Sidee looga hortagaa korontada taagan ee looxyada adag ee PCB-ga dhoobada ah?

Ku hay qoyaanka deegaanka shaqada 40%-60% oo xidho jijimo gacan-ku-xidhan oo ka hortag ah.
56. Sidee loo waafajiyaa walxaha dhoobada ah iyo kuwa lagu dhaqo kuleylka?

Xulo agab leh isku-xidhka ballaarinta kulaylka oo la mid ah oo meelaha banaan ku buuxi dufan silikoon ah oo kuleyliyaha gudbiya.
57. Looxyada adag ee PCB-ga dhoobada ma mari karaan alxanka hirarka?

Laguma talinayo, maadaama cadaadiska kulaylka uu sababi karo dildilaac dhoobada ah.
58. Waa maxay shuruudaha xoogga si loo rakibo substrate-ka dhoobada ah?

Xuddunta boolal M3: 0.8-1.2N・m si looga fogaado feejignaanta walbahaarka.
59. Sidee loo kormeeraa looxyada adag ee PCB-ga dhoobada ah ka dib isticmaalka muddada dheer?

Soo ogow meelaha kulul ee lagu arko iyada oo loo marayo sawir-qaadista kulaylka infrared-ka oo hubi isku-xirka iyada oo loo marayo tijaabinta iska caabinta.
60. Waa maxay xaaladaha kaydinta ee substrate-ka dhoobada ah?

Kaydinta: qoyaan
61. Waa maxay heerarka caalamiga ah ee looxyada adag ee PCB-ga dhoobada ah?

IPC-6012 (Qeexitaanka Waxqabadka ee Looxyada Daabacan ee Adag), MIL-P-55110 (Heerka Milatariga).
62. Shahaadooyin noocee ah ayaa looga baahan yahay substrate-ka dhoobada ah?

Shahaadada UL (dareemayaasha ololka), shahaadada RoHS (aan lahayn walax khatar ah), ISO 9001.
63. Waa maxay shuruudaha heerka militariga ee looxyada adag ee PCB-ga dhoobada ah?

Buuxi tijaabada deegaanka ee MIL-STD-810G oo leh shuruudaha gariirka iyo iska caabbinta saameynta oo adag.
64. Shahaadooyin noocee ah ayaa looga baahan yahay warshadaha baabuurta ee loogu talagalay walxaha dhoobada ah?

Waxaa loo baahan yahay shahaadooyin AEC-Q100 (chips) iyo AEC-Q200 (qaybaha aan firfircoonayn).
65. Waa maxay heerarka deegaanka ee looxyada adag ee PCB-ga dhoobada ah?

U hoggaansan xeerarka EU REACH, adigoo xaddidaya isticmaalka walxaha khatarta ah sida rasaasta iyo cadmium.
66. Waa maxay qiimeynta dab-damiska ee walxaha dhoobada ah?

Qiimaynta UL 94 V-0 (ma jirto faafitaan olol), tusmada oksijiinta > 30%.
67. Waa maxay heerarka warshadaha caafimaadka ee looxyada adag ee PCB-ga dhoobada ah?

U hoggaansan nidaamka maaraynta tayada qalabka caafimaadka ee ISO 13485.
68. Shahaadooyinkee hawada sare ayaa looga baahan yahay substrates-ka dhoobada ah?

U baahan shahaadada nidaamka maaraynta tayada hawada sare ee AS9100.
69. Waa maxay heerarka EMC ee looxyada adag ee PCB-ga dhoobada ah?

U hoggaansan heerarka shucaaca elektromagnetic-ka ee EN 55032, qiiqa la sameeyay oo ka yar 40dBμV.
70. Waa maxay hay'adaha shahaadada kalsoonida ee substrate-ka dhoobada ah?

Hay'adaha shahaadada ee dhinac saddexaad: SGS, TÜV, Intertek.
71. Maxaa la sameeyaa haddii lakabka biraha ee walxaha dhoobada ah uu dhaco?

Kormeer habka isku xidhka (tusaale ahaan, oksaydhka foil-ka naxaasta ee DBC) oo dib u habayn dusha sare.
72. Sidee loo hagaajiyaa dildilaaca looxyada adag ee PCB-ga dhoobada ah?

Ku buuxi dildilaacyada yaryar resin epoxy; beddel substrate-ka haddii ay jiraan dildilaacyo daran.
73. Sidee loo xalliyaa alxanka qabow inta lagu jiro alxanka dhoobada ah?

Hagaaji qaabka heerkulka alxanka iyo xakamaynta dhaqdhaqaaqa qulqulka (heerka RA).
74. Sidee wax looga qaban karaa hoos u dhaca weyn ee gudbinta calaamadaha ee looxyada adag ee PCB-ga dhoobada ah?

Hagaaji fiilooyinka, isticmaal agab joogto ah oo dielectric hooseeya, oo ku dar lakabka dhulka.
75. Sidee loo xalliyaa kala-baxa kulaylka ee liita ee walxaha dhoobada ah?

Kormeer waddooyinka gudbinta kulaylka oo tijaabi iska caabbinta kulaylka (bartilmaameedka
76. Maxaa sababa is-xoqid xad dhaaf ah oo ku timaadda looxyada adag ee PCB-ga dhoobada ah?

Habka sintering-ka oo aan sinnayn ama yareynta cadaadiska kulaylka oo aan ku filnayn; hagaaji habka wax soo saarka.
77. Sidee loo maareeyaa wasakhowga dusha sare ee ku yaal walxaha dhoobada ah?

Ku nadiifi balaasma si aad uga saarto haraaga dabiiciga ah.
78. Sidee loo ogaadaa cilladaha dahaarka ee looxyada adag ee PCB-ga dhoobada ah?

Tijaabada iska caabbinta dahaarka (1000V DC) si loo helo meelaha daadashada.
79. Maxaa la sameeyaa haddii lakabka birta ee walxaha dhoobada ah uu mirqo?

Xooji dahaarka ilaalinta (tusaale ahaan, dahaarka dahabka ee nikkel-ka) oo iska ilaali gaasaska daxalka leh.
80. Sidee loo hagaajiyaa xoogga farsamo ee aan ku filnayn ee looxyada adag ee PCB-ga dhoobada ah?

Kordhi dhumucda substrate-ka (≥0.5mm) oo hagaaji naqshadda geeska.
81. Waa maxay tilmaamaha horumarinta ee looxyada adag ee PCB-ga dhoobada ah?

Khafiifinta (
82. Waa maxay agabka cusub ee dhoobada ah?

Nitride-ka Silicon (Si₃N₄), oo leh kuleyl aad u sarreeya (100W/m・K) iyo xoog.
83. Waa maxay suurtogalnimada isku darka walxaha dhoobada ah iyo daabacaadda 3D?

Daabacaadda 3D ee dhoobada ah waxay ogaatay qaab-dhismeedyo kala-baxa kulaylka oo adag oo leh saxnaan dhan 50μm.
84. Sidee AI u wanaajisaa naqshadeynta looxyada adag ee PCB-ga dhoobada ah?

Hagaaji qaybinta kulaylka iyada oo loo marayo algorithms-ka jilitaanka, iyadoo la soo gaabinayo wareegga naqshadeynta 30%.
85. Waa maxay rajada laga qabo isticmaalka walxaha dhoobada ah ee baabuurta tamarta cusub?

Waxaa loo isticmaalaa modules-ka awoodda SiC oo leh heer kobaca suuqa sanadlaha ah oo ka badan 20%.
86. Waa maxay baahida loo qabo looxyada adag ee PCB-ga dhoobada ah ee internetka dayax-gacmeedka?

Lumitaanka dielectric-ga oo hooseeya ayaa daboolaya baahiyaha isgaarsiinta ee soo noqnoqda, iyadoo baahida la filayo inay kordho 50% marka la gaaro 2025.
87. Waa maxay tiknoolajiyada wax soo saarka cagaaran ee loogu talagalay walxaha dhoobada ah?

Bacaha qaro weyn ee biyaha ku salaysan ayaa beddelaya dareerayaasha dabiiciga ah si loo yareeyo qiiqa VOC.
88. Waa maxay caqabadaha ku jira isku-darka walxaha dhoobada ah iyo qalabka elektarooniga ah ee dabacsan?

Dhibaato ku saabsan isku-xidhka isku-dhafka ballaarinta kulaylka, oo u baahan walxaha lakabka kaydka ah.
89. Waa maxay horumarka laga sameeyay farsamaynta nanoscale ee looxyada adag ee PCB-ga dhoobada ah?

Lithography-ga EUV wuxuu gaaraa wareegyada heerka 10nm, oo hadda ku jira marxaladda shaybaarka.
90. Waa maxay awoodda adeegsiga ee substrates-ka dhoobada ah ee xisaabinta kuntum?

Deganaanshaha sare ee heerkulka hooseeya ayaa laga yaabaa inay ka dhigaan kuwo side u ah jajabyada quantum.
91. Waa maxay isticmaalka looxyada adag ee PCB-ga dhoobada ah ee foornooyinka heerkulka sare leh?

Iska caabbinta heerkulka ugu badan: 800℃, oo u baahan agab bir-dhalin heerkul sare leh (tusaale ahaan, habka molybdenum-manganese).
92. Waa maxay shuruudaha ilaalinta ee walxaha dhoobada ah ee ku jira qalabka badda qotoda dheer?

U adkeyso cadaadiska 100MPa oo hel ilaalinta IP68 iyada oo loo marayo dheriga.
93. Waa maxay ilaalinta shucaaca ee looxyada adag ee PCB-ga dhoobada ah ee warshadaha nukliyeerka?

Isticmaal dhoobada u adkaysta shucaaca (tusaale ahaan, silikoon carbide) si aad u ilaaliso shucaaca neutron-ka.
94. Waa maxay qodobbada ugu muhiimsan ee naqshadaynta ee substrate-ka dhoobada ah ee aaladaha korontada ku shaqeeya ee microwave-ka?

Xakamaynta caabbinta astaamaha (50Ω) oo yaree luminta dielectric (tanδ
95. Waa maxay naqshadda kala-baxa kulaylka ee looxyada adag ee PCB-ga dhoobada ah ee LiDAR?

Qaado qaab-dhismeedka kala-baxa kulaylka ee kanaalka yar-yar oo leh cufnaanta qulqulka kulaylka ilaa 100W/cm².
96. Waa maxay iswaafajinta bayoolojiga ee walxaha dhoobada ah ee qalabka caafimaadka?

Raacitaanka dusha sare ayaa loo baahan yahay, iyadoo la raacayo baaritaanka bayoolojiga ISO 10993.
97. Waa maxay faa'iidooyinka isticmaalka ee looxyada adag ee PCB-ga dhoobada ah ee ku jira qalabka korantada ee loo yaqaan 'photovoltaic inverters'?

Iska caabinta heerkulka sare iyo dahaarka, hagaajinta waxtarka nidaamka 1%-2%.
98. Waa maxay baahida loo qabo walxaha dhoobada ah ee shabakadaha casriga ah?

Buuxi shuruudaha dahaarka DC-ga (HVDC) ee danab sare leh, danabku wuxuu u adkeysan karaa ≥10kV.
99. Waa maxay naqshadda dhulgariirka ee looxyada adag ee PCB-ga dhoobada ah ee qalabka saxda ah?

Isticmaal qafisyada nuugaya shoogga oo iska ilaali soo noqnoqoshada kicinta dibadda si aad u hesho soo noqnoqoshada dabiiciga ah.
100. Waa maxay nidaamka isdhexgalka ee substrates-ka dhoobada ah ee dareemayaasha IoT?

Ku dhex mil chips-ka MEMS si loo gaaro yaraynta iyo naqshad awood yar leh

PCB-ga dhoobada

1. Waa maxay agabka caadiga ah ee looxyada adag ee PCB-ga dhoobada ah?

2. Waa maxay gudbinta kulaylka ee walxaha kala duwan ee dhoobada?

3. Waa maxay isku-darka ballaarinta kulaylka ee looxyada adag ee PCB-ga dhoobada ah?

4. Waa maxay iska caabbinta dahaarka ee walxaha dhoobada ah?

5. Waa maxay joogtada dielectric ee looxyada adag ee PCB-ga dhoobada ah?

6. Waa maxay nooca iska caabbinta heerkulka ee walxaha dhoobada ah?

7. Sidee ayay u adag yihiin walxaha dhoobada ah?

8. Waa maxay cufnaanta walxaha dhoobada ah?

9. Maxay u yihiin looxyada adag ee PCB-ga dhoobada ah ee ku habboon codsiyada soo noqnoqda badan?

10. Sidee bay u nuugaan biyaha substrate-ka dhoobada ah?

11. Waa maxay hababka wax soo saarka ee looxyada adag ee PCB-ga dhoobada ah?

12. Waa maxay faraqa u dhexeeya hababka HTCC iyo LTCC?

13. Waa maxay ballaca/kala fogaanshaha xariiqda ugu yar ee substrate-ka dhoobada ah?

14. Waa maxay dhexroorka godka qodista ugu yar ee looxyada adag ee PCB-ga dhoobada ah?

15. Waa maxay hababka caadiga ah ee loo adeegsado biraha dusha sare ee walxaha dhoobada ah?

16. Waa maxay dhumucda lakabka naxaasta ah ee habka DBC?

17. Waa maxay faa'iidooyinka habka AMB?

18. Waa maxay qallafsanaanta dusha sare ee Ra qiimaha substrate-ka dhoobada ah?

19. Waa maxay hababka jarista ee loo isticmaalo substrates-ka dhoobada ah?

20. Waa maxay wax-soo-saarka guud ee wax-soo-saarka ee looxyada adag ee PCB-ga dhoobada ah?

21. Maxaa lagu xusi karaa naqshadaynta looxyada adag ee PCB-ga dhoobada ah?

22. Sidee bay walxaha dhoobada ah ugu xiran yihiin jajabyada?

23. Waa maxay codsiyada soo noqnoqda sare ee looxyada adag ee PCB-ga dhoobada ah ay ku habboon yihiin?

24. Waa maxay doorka substrates-ka dhoobada ah ee aaladaha korontada?

25. Looxyada adag ee PCB-ga dhoobada ah ma loo isticmaali karaa qalabka elektaroonigga ah ee baabuurta?

26. Waa maxay isticmaalka substrates-ka dhoobada ah ee goobta LED-ka?

27. Waa maxay awoodda ugu badan ee qaadida hadda ee looxyada adag ee PCB-ga dhoobada ah?

28. Sidee loo gaaraa naqshad lakab badan leh oo loogu talagalay walxaha dhoobada ah?

29. Waa maxay xoogga dabacsan ee looxyada adag ee PCB-ga dhoobada ah?

30. Waa maxay faa'iidooyinka walxaha dhoobada ah ee hawada sare?

31. Sidee loo sameeyaa tijaabooyinka isku halaynta ee looxyada adag ee PCB-ga dhoobada ah?

32. Waa maxay qaabka wareegga kulaylka ee walxaha dhoobada ah?

33. Waa maxay danab u adkeysan kara dahaarka ee looxyada adag ee PCB-ga dhoobada ah?

34. Waa maxay heerka tijaabada dhejiska ee walxaha dhoobada ah?

35. Waa maxay cimriga adeegga looxyada adag ee PCB-ga dhoobada ah?

36. Sidee loo ogaadaa cilladaha gudaha ee walxaha dhoobada ah?

37. Waa maxay heerka tijaabada gariirka ee looxyada adag ee PCB-ga dhoobada ah?

38. Waa maxay waqtiga tijaabada buufinta milixda ee walxaha dhoobada ah?

39. Waa maxay heerka ilaalinta ESD ee looxyada adag ee PCB-ga dhoobada ah?

40. Waa maxay xaaladaha tijaabada shoogga kulaylka ee substrates-ka dhoobada ah?

41. Waa maxay faraqa kharashka ee u dhexeeya looxyada adag ee PCB-ga dhoobada ah iyo FR4?

42. Waa maxay hababka lagu dhimo kharashka looxyada adag ee PCB-ga dhoobada ah?

43. Waa maxay faa'iidooyinka substrate-ka dhoobada ah marka la barbar dhigo substrate-ka birta ah?

44. Waa maxay qiimeynta kharashka ee agabka kala duwan ee dhoobada?

45. Waa maxay arrimaha saameeya qiimaha ee looxyada adag ee PCB-ga dhoobada ah?

46. ​​Ma lagu dari karaa walxaha dhoobada ah iyo PCB-yada dabacsan?

47. Waa maxay saamiga kharashka qashinka ee looxyada adag ee PCB-ga dhoobada ah?

48. Waa maxay heerka qiimaha ee lagu soo saaro walxaha dhoobada ah ee la isku qurxiyo?

49. Qiimaha cilmi-baarista iyo horumarinta ee looxyada adag ee PCB-ga dhoobada ma sarreeyaa?

50. Waa maxay isbarbardhigga kharashka kala-baxa kulaylka ee u dhexeeya walxaha dhoobada ah iyo PCB-yada ku salaysan aluminiumka?

51. Sidee loo rakibaa looxyada adag ee PCB-ga dhoobada ah?

52. Waa maxay shuruudaha heerkulka alxanka ee substrate-ka dhoobada ah?

53. Looxyada adag ee PCB-ga dhoobada ma dib loo shaqeyn karaa?

54. Sidee loo nadiifiyaa dusha sare ee walxaha dhoobada ah?

55. Sidee looga hortagaa korontada taagan ee looxyada adag ee PCB-ga dhoobada ah?

56. Sidee loo waafajiyaa walxaha dhoobada ah iyo kuwa lagu dhaqo kuleylka?

57. Looxyada adag ee PCB-ga dhoobada ma mari karaan alxanka hirarka?

58. Waa maxay shuruudaha xoogga si loo rakibo substrate-ka dhoobada ah?

59. Sidee loo kormeeraa looxyada adag ee PCB-ga dhoobada ah ka dib isticmaalka muddada dheer?

60. Waa maxay xaaladaha kaydinta ee substrate-ka dhoobada ah?

61. Waa maxay heerarka caalamiga ah ee looxyada adag ee PCB-ga dhoobada ah?

62. Shahaadooyin noocee ah ayaa looga baahan yahay substrate-ka dhoobada ah?

63. Waa maxay shuruudaha heerka militariga ee looxyada adag ee PCB-ga dhoobada ah?

64. Shahaadooyin noocee ah ayaa looga baahan yahay warshadaha baabuurta ee loogu talagalay walxaha dhoobada ah?

65. Waa maxay heerarka deegaanka ee looxyada adag ee PCB-ga dhoobada ah?

66. Waa maxay qiimeynta dab-damiska ee walxaha dhoobada ah?

67. Waa maxay heerarka warshadaha caafimaadka ee looxyada adag ee PCB-ga dhoobada ah?

68. Shahaadooyinkee hawada sare ayaa looga baahan yahay substrates-ka dhoobada ah?

69. Waa maxay heerarka EMC ee looxyada adag ee PCB-ga dhoobada ah?

70. Waa maxay hay'adaha shahaadada kalsoonida ee substrate-ka dhoobada ah?

71. Maxaa la sameeyaa haddii lakabka biraha ee walxaha dhoobada ah uu dhaco?

72. Sidee loo hagaajiyaa dildilaaca looxyada adag ee PCB-ga dhoobada ah?

73. Sidee loo xalliyaa alxanka qabow inta lagu jiro alxanka dhoobada ah?

74. Sidee wax looga qaban karaa hoos u dhaca weyn ee gudbinta calaamadaha ee looxyada adag ee PCB-ga dhoobada ah?

75. Sidee loo xalliyaa kala-baxa kulaylka ee liita ee walxaha dhoobada ah?

76. Maxaa sababa is-xoqid xad dhaaf ah oo ku timaadda looxyada adag ee PCB-ga dhoobada ah?

77. Sidee loo maareeyaa wasakhowga dusha sare ee ku yaal walxaha dhoobada ah?

78. Sidee loo ogaadaa cilladaha dahaarka ee looxyada adag ee PCB-ga dhoobada ah?

79. Maxaa la sameeyaa haddii lakabka birta ee walxaha dhoobada ah uu mirqo?

46. Ma lagu dari karaa walxaha dhoobada ah iyo PCB-yada dabacsan?