Pawg Module

PCB yooj ywm

1. Qhov dav/qhov sib nrug tsawg kawg nkaus ntawm kab ntawm PCB yooj ywm yog dab tsi?

Ib txwm muaj: 30μm/30μm; txheej txheem siab heev: 12μm/12μm (tus qauv IPC-2223)
2. Cov laug cam uas yoog tau tuaj yeem tiv taus kev khoov tau pes tsawg zaus?

Polyester substrate: ~ 100,000 zaug; polyimide substrate: ≥1,000,000 zaug
3. Qhov kub thiab txias ntawm cov PCB yooj ywm yog dab tsi?

Polyimide substrate: -196℃ txog +260℃; polyester substrate: -55℃ txog +150℃
4. Yuav ua li cas xam qhov khoov vojvoog ntawm cov laug cam uas yoog tau?

Dav dav: R≥3 × tuab ntawm daim ntawv; cov ntawv thov tshwj xeeb: R = 1.5 × tuab ntawm daim ntawv
5. Tus nqi nqus dej ntawm cov PCB yooj ywm yog dab tsi?

Polyimide:
6. Cov khoom siv ua vaj huam sib luag uas siv tau yooj ywm yog dab tsi?

Polyimide (PI), polyester (PET), kua siv lead ua kua polymer (LCP)
7. Lub dielectric constant ntawm cov laug cam ywj pheej yog dab tsi?

Polyimide: εr≈3.5; PET: εr≈3.2
8. Yuav ua li cas thiaj tiv thaiv tau cov ntawv phaj uas yooj ywm kom tawg?

Tswj cov qauv kub ntawm lamination; polyimide lamination: 280-320 ℃
9. Cov lus qhia rau cov ntawv ci tooj liab uas yoog tau yog dab tsi?

Feem ntau: 18μm, 35μm, 70μm; yam tsawg kawg nkaus: 9μm
10. Qhov siab tshaj plaws tam sim no ceev ntawm PCB yooj ywm tuaj yeem tiv taus yog dab tsi?

18μm ntawv ci tooj liab: ~20A/mm²
11. Yuav ua li cas los ntsuam xyuas qhov kev ua tau zoo ntawm cov laug cam uas yoog tau?

Kev sim khoov voj voog raws li ASTM D2176 tus qauv
12. Cov txheej txheem kho qhov chaw rau cov laug cam ywj pheej yog dab tsi?

Kub tsis muaj nickel electroless immersion (ENIG), immersion tin, OSP; ENIG: Ni 3-5μm, Au 0.05-0.1μm
13. Qhov kub thiab txias SMT soldering uas tsim nyog rau cov laug cam yooj ywm yog dab tsi?

Qhov kub siab tshaj plaws ntawm qhov rov ua dua: polyimide substrate ≤260 ℃; PET substrate ≤230 ℃
14. Yuav tsim thaj chaw txhawb nqa ntawm cov laug cam uas yoog tau li cas?

Qhov tuab ntawm cov khoom siv txhawb zog: 1.5-2 × qhov tuab ntawm cov laug cam uas yoog tau; yuav tsum muaj cov npoo puag ncig
15. Lub tuab ntawm lub npog ntsej muag rau PCB yooj ywm yog dab tsi?

Ib txwm muaj: 15-30μm; cov kev cai tshwj xeeb: txog li 50μm
16. Cov laug cam uas yoog tau puas siv tau nrog cov vias dig muag/faus?

Yog; qhov muag tsis pom kev tsawg kawg nkaus ntawm txoj kab uas hla: 0.15 hli, qhov sib piv ntawm qhov sib piv ≤ 3: 1
17. Yuav ua li cas xaiv ntawm polyimide thiab polyester?

Polyimide rau qhov kub thiab txias siab thiab khoov siab; polyester rau cov ntawv thov uas muaj nqi siab
18. Cov xwm txheej khaws cia rau cov laug cam ywj pheej yog dab tsi?

Av noo
19. Yuav ua li cas thiaj daws tau cov teeb meem ntawm lub rooj tsavxwm uas hloov tau yooj yim?

Ntxiv qhov sib npaug ntawm txheej tsim; lamination siab: 3-5MPa
20. Qhov tsawg kawg nkaus ntawm qhov loj me rau PCB yooj ywm yog dab tsi?

Ib txwm: 0.3 hli; txheej txheem siab heev: 0.1 hli
21. Tus qauv ntawm lub zog tev tawm rau cov laug cam ywj pheej yog dab tsi?

IPC tus qauv: ≥1.5N/hli (18μm tooj liab ntawv ci)
22. Cov laug cam uas yoog tau puas siv tau nrog kev siv tes vuam nthwv dej?

Tsis pom zoo; reflow soldering lossis selective wave soldering yog qhov pom zoo
23. Yuav ua li cas thiaj ua tau EMI shielding rau cov laug cam uas yoog tau?

Tooj liab/nickel plating shielding txheej; shielding efficiency> 60dB
24. Lub dielectric poob tangent ntawm cov laug cam ywj pheej yog dab tsi?

Polyimide: tanδ≈0.003; PET: tanδ≈0.01
25. Lub peev xwm siab tshaj plaws ntawm kev ntxhov siab ntawm PCB ywj pheej yog dab tsi?

Lub zog tensile: polyimide≥150MPa, PET≥100MPa
26. Yuav ua li cas thiaj tiv thaiv tau qhov tawg ntawm cov laug cam uas khoov tau?

Tsim kev hloov pauv arc; tooj liab ntawv ci etching nrog 0.05 hli npoo
27. Qhov ntsuas hluav taws kub ntawm cov laug cam ywj pheej yog dab tsi?

Polyimide: UL94 V-0; PET: UL94 HB
28. Cov laug cam uas yoog tau puas tuaj yeem sib dhos ua ob sab?

Yog, nrog rau kev saib xyuas rau kev tsim kho thiab kev sib txuas ua ke
29. Qhov siab tsawg kawg nkaus ntawm tus cwj pwm rau PCB yooj ywm yog dab tsi?

Ib txwm: 0.15mm; txheej txheem zoo: 0.1mm
30. Yuav ua li cas ntsuas qhov impedance ntawm cov laug cam yooj ywm?

Network analyzer; tus yam ntxwv impedance tswj qhov tseeb ± 5Ω
31. Tus coefficient siab tshaj plaws ntawm kev nthuav dav thermal rau cov laug cam ywj pheej yog dab tsi?

Polyimide: X/Y axis≈15ppm/℃, Z axis≈70ppm/℃
32. Lub zog sib txuas ntawm cov laug cam yooj ywm yog dab tsi?

Kev sau npe ntawm cov txheej txheem sib txawv ≤ 50 μm
33. Yuav ua li cas los daws cov teeb meem qeeb ntawm cov teeb liab hauv cov laug cam uas yoog tau?

Tswj qhov ntev ntawm txoj kab; siv tus qauv sib txawv
34. Dab tsi yog cov yam ntxwv uas cuam tshuam rau lub neej ntawm PCB yooj ywm?

Hom substrate, tooj liab ntawv ci tuab, dabtsi yog khoov vojvoog, ambient kub
35. Lub thickness ntawm electroless copper plating rau cov flexible boards yog dab tsi?

Thickness ntawm tooj liab plating ≥25μm los ntawm qhov
36. Cov laug cam uas yoog tau puas ua tau 3D stereoscopic bending?

Yog, tab sis yuav tsum tau ua cov kauj ruam zuj zus; txhua lub kaum sab xis ≤ 90 °
37. Tus qauv ntsuas ntsev rau cov laug cam uas yoog tau yog dab tsi?

ASTM B117; tsis muaj xeb tom qab 24 teev
38. Qhov tsawg kawg nkaus ntawm cov ntaub qhwv rau PCB yooj ywm yog dab tsi?

0.3 hli (0.1 hli ntawm), 0.5 hli (0.3 hli ntawm)
39. Yuav ua li cas los txhim kho qhov kev ua haujlwm ntawm cov laug cam uas yooj ywm?

Ntxiv cov ntawv ci tooj liab uas ua rau muaj cua sov; kev ua kom sov txog li 150W / mK
40. Lub zog hluav taws xob ntawm cov laug cam ywj pheej yog dab tsi?

Kev rwb thaiv tsev ib txwm muaj peev xwm tiv taus voltage ≥ 500V; tsim tshwj xeeb txog li 1500V
41. Qhov tsawg kawg nkaus ntawm qhov curling radius ntawm cov laug cam flexible yog dab tsi?

Polyimide qhov tsawg kawg nkaus curling radius: R = 1 hli (0.1 hli tuab)
42. Yuav ua li cas thiaj tiv thaiv tau qhov blistering thaum lub sij hawm soldering ntawm cov laug cam uas yoog tau?

Kub ua ntej 80-120 ℃; lub sijhawm soldering
43. Qhov yuav tsum tau ua kom qhov roughness ntawm qhov chaw rau PCB yooj ywm yog dab tsi?

Ra≤1.5μm (ENIG nto)
44. Tus qauv xeem solderability rau cov laug cam ywj pheej yog dab tsi?

JIS Z3198; lub sijhawm ntub dej
45. Qhov ceev ntawm kev sim khoov dynamic rau cov laug cam ywj pheej yog dab tsi?

Ib txwm muaj: 5-10 lub voj voog ib feeb
46. Yuav tsim qhov chaw tais tau ntawm cov laug cam uas yoog tau li cas?

Tsim cov kab sib chaws hollow; khaws cia 20% kev txhawb nqa substrate
47. Qhov ceev tshaj plaws ntawm kev sib dhos ntawm cov PCB yooj ywm yog dab tsi?

Muaj peev xwm ua tiav qhov chaw muab khoom 0201; qhov tsawg kawg nkaus qhov sib nrug 0.3 hli
48. Cov txheej txheem kho kom tsis txhob muaj dej noo rau cov laug cam uas yoog tau yog dab tsi?

Lub tshuab nqus tsev ntim khoom + desiccant; daim npav qhia txog av noo
49. Lub sijhawm tswj hwm lamination rau cov laug cam ywj pheej yog dab tsi?

Lub sijhawm lamination polyimide: 30-60 feeb
50. Lub voj voog sim kev qaug zog ntawm cov laug cam ywj pheej yog dab tsi?

1,000,000 lub voj voog; kev tshuaj xyuas kev ua tau zoo txhua 100,000 lub voj voog
51. Qhov tsawg kawg nkaus ntawm txoj kab dav tsim rau PCB yooj ywm yog dab tsi?

Kev txwv theoretical: 10μm (yuav tsum tau siv tshuab laser ncaj qha)
52. Cov xwm txheej kho rau cov kua mem kua nplaum uas yooj ywm yog dab tsi?

150 ℃ rau 60 feeb lossis 180 ℃ rau 30 feeb
53. Puas yog qhov dielectric tsis tu ncua ntawm cov laug cam hloov pauv nrog zaus?

Polyimide: εr = 3.5 ntawm 1GHz, εr = 3.2 ntawm 10GHz
54. Yuav ua li cas los ntsuam xyuas qhov tsis kam ntawm cov laug cam uas yoog tau?

500V megohmmeter; tsis kam ≥10¹²Ω
55. Lub zog nias siab tshaj plaws rau cov laug cam ywj pheej yog dab tsi?

Lub siab ntawm lamination yog 4-6MPa (polyimide substrate)
56. Txoj kev ua qhov tsawg kawg nkaus rau cov PCBs uas yoog tau yog dab tsi?

Kev siv laser drilling (yam tsawg kawg nkaus 0.1 hli), plasma etching
57. Txoj kev sim tev daim ntawv ci tooj liab rau cov laug cam ywj pheej yog dab tsi?

IPC-TM-650 2.4.8 tus qauv, 90 ° tev qhov kev sim
58. Cov laug cam uas yoog tau muaj peev xwm tiv taus cua sov thiab noo noo li cas?

Tsis muaj kev ua tsis tiav tom qab 1000 teev hauv 85 ℃ / 85% RH ib puag ncig
59. Qhov kev sib txhuam ntawm kev kho qhov chaw ntawm cov laug cam ywj pheej yog dab tsi?

ENIG qhov kev sib txhuam ntawm qhov chaw ≥500 zaug (CS-10 log, 1000g siab)
60. Yuav tsim thaj chaw sib txuas ntawm cov laug cam uas yoog tau li cas?

Txais yuav cov qauv tsim ua ke, qhov ntev ntawm thaj chaw sib txuas ≥5mm
61. Tus qauv xeem qhov tsawg kawg nkaus ntawm qhov khoov vojvoog rau cov PCBs ywj pheej yog dab tsi?

IPC-6013, tsis muaj kev tawg tom qab 1000 lub voj voog ntawm kev khoov
62. Lub sijhawm kho tau rau cov laug cam ywj pheej yog pes tsawg?

Pom zoo ≤2 zaug, siab tshaj plaws tsis pub tshaj 3 zaug
63. Cov xwm txheej ntawm kev sim kev ntxhov siab thermal rau cov laug cam ywj pheej yog dab tsi?

-55 ℃ txog +125 ℃ voj voog 100 zaug, nyob 30 feeb txhua zaus
64. Lub zog ntawm lub npog ntsej muag rau cov laug cam yooj ywm yog dab tsi?

Qhov tawv ntawm tus cwj mem ≥3H
65. Lub kaum sab xis ntawm kev sim flexure rau cov laug cam ywj pheej yog dab tsi?

0-180 °, tsom mus rau 90 ° kev ua tau zoo ntawm kev khoov
66. Yuav ua li cas los daws qhov teeb meem ntawm cov teeb liab ntawm cov laug cam uas yoog tau?

Ntxiv txheej tiv thaiv, tswj qhov nrug ntawm kab ≥3 zaug ntawm kab dav
67. Qhov dav tsawg kawg nkaus ntawm lub nplhaib annular rau cov PCBs uas yoog tau yog dab tsi?

Ib txwm muaj 0.15 hli, yam tsawg kawg nkaus 0.1 hli
68. Cov txheej txheem txheej txheem rau electroless nickel thiab kub plating ntawm cov laug cam ywj pheej yog dab tsi?

Tus nqi tso tawm nickel 1-2μm / h, tus nqi tso tawm kub 0.02-0.05μm / h
69. Muaj pes tsawg txheej rau cov laug cam uas yoog tau?

Ib txwm muaj 8 txheej, siab tshaj plaws txog li 20 txheej
70. Cov laug cam uas yoog tau muaj zog tiv taus kev cuam tshuam li cas?

Muaj peev xwm tiv taus 50g kev nrawm, 11ms lub sijhawm cuam tshuam
71. Cov hom kev ua tsis tiav ntawm cov laug cam uas yoog tau yog dab tsi?

Cov ntawv ci tooj liab tawg (70%), cov khoom siv delamination (20%), qhov chaw sib txuas tawg (10%)
72. Yuav ua li cas thiaj paub txog lub zog ntawm cov laug cam uas yoog tau?

Siv lub tshuab kuaj tensile ntawm qhov ceev ntawm 100mm / min
73. Qhov dav tsawg kawg nkaus ntawm kab cim rau cov PCBs uas yoog tau yog dab tsi?

Ib txwm muaj 0.05 hli, cov txheej txheem zoo txog li 0.03 hli
74. Kev tswj hwm ntawm qhov kub thiab txias ntawm lamination rau cov laug cam ywj pheej yog dab tsi?

Tus nqi cua sov 2-3 ℃ / feeb, qhov kub thiab txias tuav theem ± 5 ℃ fluctuation
75. Kev sim ua kom cov ntoo flexible nplaum rau saum npoo yog dab tsi?

Kev sim daim kab xev 3M 600, tsis muaj txheej txheej tev tawm
76. Cov kev cai ib puag ncig rau kev sim flexure ntawm cov laug cam ywj pheej yog dab tsi?

Kub 23 ± 2 ℃, av noo 50 ± 5%
77. Yuav tsim cov qauv kev ntxhov siab ntawm cov laug cam uas yoog tau li cas?

Txais yuav cov qauv tsim kev ntxhov siab xws li cov kab serpentine thiab cov qhov U-puab
78. Qhov tsawg kawg nkaus ntawm qhov dav ntawm lub nplhaib annular rau cov PCBs uas yooj ywm yog dab tsi?

Ib txwm muaj 0.15 hli, yam tsawg kawg nkaus 0.1 hli
79. Lub zog tiv taus ntawm lub npog ntsej muag rau cov laug cam ywj pheej yog dab tsi?

So nrog acetone 10 zaug, tsis muaj tev tawm
80. Lub kaum sab xis ntawm kev sim khoov rau cov laug cam ywj pheej yog dab tsi?

Kev khoov voj voog ± 90 °
81. Yuav ua li cas los daws qhov teeb meem thermal deformation ntawm cov laug cam yooj ywm?

Xaiv cov substrates uas muaj cov coefficient qis ntawm thermal expansion thiab ua kom cov cua sov dissipation channels nce ntxiv
82. Qhov siab tshaj plaws ntawm cov av noo ua haujlwm rau cov laug cam ywj pheej yog dab tsi?

Lub sijhawm ua haujlwm ntev av noo ≤90% RH
83. Tus coefficient kub ntawm dielectric tas li rau cov laug cam ywj pheej yog dab tsi?

Polyimide △εr/△T≈-0.001/℃
84. Qhov tsawg kawg nkaus ntawm txoj kab dav dav rau cov PCBs uas yooj ywm yog dab tsi?

±10% (txheej txheem ib txwm muaj), ±5% (txheej txheem siab)
85. Cov khoom siv xaiv rau cov khoom siv tawv ntawm cov laug cam ywj pheej yog dab tsi?

FR-4, polyimide stiffeners, tuab 0.1-0.5 hli
86. Cov ntsiab lus tseem ceeb ntawm kev tsim qauv rau kev tsim khoom (DFM) ntawm cov laug cam ywj pheej yog dab tsi?

Tsis txhob muaj cov ces kaum ntse ntse, tswj cov ntawv ci tooj liab kom sib npaug, ua kom cov cheeb tsam khoov zoo dua
87. Qhov kev tiv thaiv corrosion ntawm qhov kev kho saum npoo ntawm cov laug cam ywj pheej yog dab tsi?

Kev sim tshuaj tsuag ntsev rau 48 teev, tsis muaj xeb
88. Tus qauv kwv yees lub neej flexure rau cov laug cam flexible yog dab tsi?

Coffin-Manson equation: Nf = A (Δε)^(-m)
89. Yuav ua li cas thiaj nrhiav tau qhov roughness ntawm phab ntsa ntawm cov laug cam uas yoog tau?

Pom los ntawm kev luam theej duab electron microscope (SEM), Ra≤10μm
90. Lub sijhawm khoov siab tshaj plaws rau cov PCBs uas yoog tau yog dab tsi?

Pom zoo kom muaj zog dynamic bending zaus ≤2Hz
91. Txoj kev sim nplaum rau lub ntsej muag solder ntawm cov laug cam ywj pheej yog dab tsi?

Txoj kev txiav hla (ISO 2409), qib 0 yog tsim nyog
92. Tus qauv sib txuas ntawm cov laug cam uas yoog tau yog dab tsi?

Tus qauv IPC xav tau ≥1.2N / hli
93. Yuav ua li cas xam qhov kev ncua sij hawm ntawm kev xa cov teeb liab ntawm cov laug cam uas yoog tau?

Kev ncua sijhawm = qhov ntev ntawm qhov ntsuas × √εr × 0.167 (ns/cm)
94. Yuav ua li cas los tsim cov txheej tooj liab uas ua rau cov laug cam yoo hloov pauv tau cua sov?

Tooj txheej tuab ≥70μm, qhov rai qhib thaj tsam ≥30%
95. Cov laug cam uas yoog tau muaj zog tiv taus kev co li cas?

Muaj peev xwm tiv taus 10-2000Hz, 2g kev co ceev
96. Qhov tsawg kawg nkaus ntawm qhov ntsuas qhov loj me rau cov PCBs uas yooj ywm yog dab tsi?

Ib txwm muaj 0.6 hli, yam tsawg kawg nkaus 0.4 hli
97. Kev sim tshuaj tiv thaiv kev puas tsuaj rau saum npoo ntawm cov laug cam ywj pheej yog dab tsi?

Kev sim tshuaj ntsuam xyuas Taber, lub log CS-10, hnav ntau npaum li cas
98. Qhov kev xaiv ntawm cov ntawv ci tooj liab tuab li cas hauv thaj chaw khoov ntawm cov laug cam ywj pheej?

Cov ntawv ci tooj liab 9μm lossis 12μm raug pom zoo rau thaj chaw khoov
99. Lub npog ntsej muag rau cov laug cam uas yoog tau qhov kub thiab txias yuav tiv taus li cas?

-40 ℃ txog + 150 ℃ voj voog 50 zaug, tsis muaj tawg
100. Cov khoom tseem ceeb ntawm kev kuaj xyuas txoj cai tsim (DRC) rau cov PCBs uas yoog tau yog dab tsi?

Qhov dav ntawm kab/qhov sib nrug, qhov loj ntawm txoj kab, qhov khoov vojvoog, kev tsim khoom siv zog

PCB yooj ywm

1. Qhov dav/qhov sib nrug tsawg kawg nkaus ntawm kab ntawm PCB yooj ywm yog dab tsi?

2. Cov laug cam uas yoog tau tuaj yeem tiv taus kev khoov tau pes tsawg zaus?

3. Qhov kub thiab txias ntawm cov PCB yooj ywm yog dab tsi?

4. Yuav ua li cas xam qhov khoov vojvoog ntawm cov laug cam uas yoog tau?

5. Tus nqi nqus dej ntawm cov PCB yooj ywm yog dab tsi?

6. Cov khoom siv ua vaj huam sib luag uas siv tau yooj ywm yog dab tsi?

7. Lub dielectric constant ntawm cov laug cam ywj pheej yog dab tsi?

8. Yuav ua li cas thiaj tiv thaiv tau cov ntawv phaj uas yooj ywm kom tawg?

9. Cov lus qhia rau cov ntawv ci tooj liab uas yoog tau yog dab tsi?

10. Qhov siab tshaj plaws tam sim no ceev ntawm PCB yooj ywm tuaj yeem tiv taus yog dab tsi?

11. Yuav ua li cas los ntsuam xyuas qhov kev ua tau zoo ntawm cov laug cam uas yoog tau?

12. Cov txheej txheem kho qhov chaw rau cov laug cam ywj pheej yog dab tsi?

13. Qhov kub thiab txias SMT soldering uas tsim nyog rau cov laug cam yooj ywm yog dab tsi?

14. Yuav tsim thaj chaw txhawb nqa ntawm cov laug cam uas yoog tau li cas?

15. Lub tuab ntawm lub npog ntsej muag rau PCB yooj ywm yog dab tsi?

16. Cov laug cam uas yoog tau puas siv tau nrog cov vias dig muag/faus?

17. Yuav ua li cas xaiv ntawm polyimide thiab polyester?

18. Cov xwm txheej khaws cia rau cov laug cam ywj pheej yog dab tsi?

19. Yuav ua li cas thiaj daws tau cov teeb meem ntawm lub rooj tsavxwm uas hloov tau yooj yim?

20. Qhov tsawg kawg nkaus ntawm qhov loj me rau PCB yooj ywm yog dab tsi?

21. Tus qauv ntawm lub zog tev tawm rau cov laug cam ywj pheej yog dab tsi?

22. Cov laug cam uas yoog tau puas siv tau nrog kev siv tes vuam nthwv dej?

23. Yuav ua li cas thiaj ua tau EMI shielding rau cov laug cam uas yoog tau?

24. Lub dielectric poob tangent ntawm cov laug cam ywj pheej yog dab tsi?

25. Lub peev xwm siab tshaj plaws ntawm kev ntxhov siab ntawm PCB ywj pheej yog dab tsi?

26. Yuav ua li cas thiaj tiv thaiv tau qhov tawg ntawm cov laug cam uas khoov tau?

27. Qhov ntsuas hluav taws kub ntawm cov laug cam ywj pheej yog dab tsi?

28. Cov laug cam uas yoog tau puas tuaj yeem sib dhos ua ob sab?

29. Qhov siab tsawg kawg nkaus ntawm tus cwj pwm rau PCB yooj ywm yog dab tsi?

30. Yuav ua li cas ntsuas qhov impedance ntawm cov laug cam yooj ywm?

31. Tus coefficient siab tshaj plaws ntawm kev nthuav dav thermal rau cov laug cam ywj pheej yog dab tsi?

32. Lub zog sib txuas ntawm cov laug cam yooj ywm yog dab tsi?

33. Yuav ua li cas los daws cov teeb meem qeeb ntawm cov teeb liab hauv cov laug cam uas yoog tau?

34. Dab tsi yog cov yam ntxwv uas cuam tshuam rau lub neej ntawm PCB yooj ywm?

35. Lub thickness ntawm electroless copper plating rau cov flexible boards yog dab tsi?

36. Cov laug cam uas yoog tau puas ua tau 3D stereoscopic bending?

37. Tus qauv ntsuas ntsev rau cov laug cam uas yoog tau yog dab tsi?

38. Qhov tsawg kawg nkaus ntawm cov ntaub qhwv rau PCB yooj ywm yog dab tsi?

39. Yuav ua li cas los txhim kho qhov kev ua haujlwm ntawm cov laug cam uas yooj ywm?

40. Lub zog hluav taws xob ntawm cov laug cam ywj pheej yog dab tsi?

41. Qhov tsawg kawg nkaus ntawm qhov curling radius ntawm cov laug cam flexible yog dab tsi?

42. Yuav ua li cas thiaj tiv thaiv tau qhov blistering thaum lub sij hawm soldering ntawm cov laug cam uas yoog tau?

43. Qhov yuav tsum tau ua kom qhov roughness ntawm qhov chaw rau PCB yooj ywm yog dab tsi?

44. Tus qauv xeem solderability rau cov laug cam ywj pheej yog dab tsi?

45. Qhov ceev ntawm kev sim khoov dynamic rau cov laug cam ywj pheej yog dab tsi?

46. ​​Yuav tsim qhov chaw tais tau ntawm cov laug cam uas yoog tau li cas?

47. Qhov ceev tshaj plaws ntawm kev sib dhos ntawm cov PCB yooj ywm yog dab tsi?

48. Cov txheej txheem kho kom tsis txhob muaj dej noo rau cov laug cam uas yoog tau yog dab tsi?

49. Lub sijhawm tswj hwm lamination rau cov laug cam ywj pheej yog dab tsi?

50. Lub voj voog sim kev qaug zog ntawm cov laug cam ywj pheej yog dab tsi?

51. Qhov tsawg kawg nkaus ntawm txoj kab dav tsim rau PCB yooj ywm yog dab tsi?

52. Cov xwm txheej kho rau cov kua mem kua nplaum uas yooj ywm yog dab tsi?

53. Puas yog qhov dielectric tsis tu ncua ntawm cov laug cam hloov pauv nrog zaus?

54. Yuav ua li cas los ntsuam xyuas qhov tsis kam ntawm cov laug cam uas yoog tau?

55. Lub zog nias siab tshaj plaws rau cov laug cam ywj pheej yog dab tsi?

56. Txoj kev ua qhov tsawg kawg nkaus rau cov PCBs uas yoog tau yog dab tsi?

57. Txoj kev sim tev daim ntawv ci tooj liab rau cov laug cam ywj pheej yog dab tsi?

58. Cov laug cam uas yoog tau muaj peev xwm tiv taus cua sov thiab noo noo li cas?

59. Qhov kev sib txhuam ntawm kev kho qhov chaw ntawm cov laug cam ywj pheej yog dab tsi?

60. Yuav tsim thaj chaw sib txuas ntawm cov laug cam uas yoog tau li cas?

61. Tus qauv xeem qhov tsawg kawg nkaus ntawm qhov khoov vojvoog rau cov PCBs ywj pheej yog dab tsi?

62. Lub sijhawm kho tau rau cov laug cam ywj pheej yog pes tsawg?

63. Cov xwm txheej ntawm kev sim kev ntxhov siab thermal rau cov laug cam ywj pheej yog dab tsi?

64. Lub zog ntawm lub npog ntsej muag rau cov laug cam yooj ywm yog dab tsi?

65. Lub kaum sab xis ntawm kev sim flexure rau cov laug cam ywj pheej yog dab tsi?

66. Yuav ua li cas los daws qhov teeb meem ntawm cov teeb liab ntawm cov laug cam uas yoog tau?

67. Qhov dav tsawg kawg nkaus ntawm lub nplhaib annular rau cov PCBs uas yoog tau yog dab tsi?

68. Cov txheej txheem txheej txheem rau electroless nickel thiab kub plating ntawm cov laug cam ywj pheej yog dab tsi?

69. Muaj pes tsawg txheej rau cov laug cam uas yoog tau?

70. Cov laug cam uas yoog tau muaj zog tiv taus kev cuam tshuam li cas?

71. Cov hom kev ua tsis tiav ntawm cov laug cam uas yoog tau yog dab tsi?

72. Yuav ua li cas thiaj paub txog lub zog ntawm cov laug cam uas yoog tau?

73. Qhov dav tsawg kawg nkaus ntawm kab cim rau cov PCBs uas yoog tau yog dab tsi?

74. Kev tswj hwm ntawm qhov kub thiab txias ntawm lamination rau cov laug cam ywj pheej yog dab tsi?

75. Kev sim ua kom cov ntoo flexible nplaum rau saum npoo yog dab tsi?

76. Cov kev cai ib puag ncig rau kev sim flexure ntawm cov laug cam ywj pheej yog dab tsi?

77. Yuav tsim cov qauv kev ntxhov siab ntawm cov laug cam uas yoog tau li cas?

78. Qhov tsawg kawg nkaus ntawm qhov dav ntawm lub nplhaib annular rau cov PCBs uas yooj ywm yog dab tsi?

79. Lub zog tiv taus ntawm lub npog ntsej muag rau cov laug cam ywj pheej yog dab tsi?

46. Yuav tsim qhov chaw tais tau ntawm cov laug cam uas yoog tau li cas?