Zvikamu zveModule

PCB yemhangura yakakora

1. Chii chinonzi PCB yemhangura yakakora?

Inoreva mabhodhi edunhu akadhindwa ane ukobvu hwefoiri yemhangura ≥3oz (105μm), anoshandiswa mumagetsi ane simba guru, zvigadzirwa zvemagetsi zvemotokari, nezvimwewo.
2. Ndezvipi zvinhu zvinowanzo shandiswa pakukora kwefoiri yemhangura?

Zvinotaurwa zvakawanda zvinosanganisira 3oz, 4oz, 5oz, 6oz, ine huwandu hwepamusoro hwe20oz.
3. Mutengo wePCB wakakwira zvakadii kupfuura wenguva dzose?

Mari yekugadzira yakakwira ne30%-80% nekuda kwekuoma kwekucheka, nguva yakareba yekuisa mapurasitiki nemagetsi, uye mwero wepamusoro wezvimedu zvesimbi.
4. Ndeipi nzvimbo shoma yemutsara/nzvimbo yemutsara?

Pa 3oz copper foil, yakajairika i8mil/8mil, uye maitiro akakosha anogona kusvika 5mil/5mil.
5. Ndezvipi zvinetso zviri kuitika mukushandiswa kwe electroplate?

Zvinoda kuiswa kwenguva refu kuti ive nechokwadi chekuti jira remhangura rakaenzana. Ukobvu hwemhangura hunofanira kusvika 25-75μm, uye musiyano weukobvu pakati pemaburi nemadziro unowanzoitika.
6. Chii chinonzi chinhu chinocheka?

Kazhinji 0.8-1.2, iyo inogona kuwedzerwa kusvika pamusoro pe1.5 nekuita nhanho kana nekugadzira ne laser.
7. Ungagadzirisa sei dambudziko rekupisa?

Wedzerai zvivharo zvinopisa (aperture ≥0.4mm), shandisai zvinhu zvinofambisa kupisa zvinobva musimbi, uye gadzirai zvidimbu zvefoil yemhangura munzvimbo yakakura.
8. Chii chinonzi simba rekutakura magetsi mumagetsi ane simba guru?

Pa 1oz copper foil, simba remagetsi rekubatanidza waya dzemativi maviri pakupisa kwe10℃ rinosvika 1A/mm, uye 3oz inogona kuwedzerwa kusvika 2.5-3A/mm.
9. Kukombama kuri sei?

Kana foil yemhangura yakakora, kuchinjika kwayo kwakawedzera. Kukotama hakukurudzirwi kune anopfuura 6oz, uye nzvimbo yekukotama yakaderera ye3oz i ≥5mm.
10. Ungadzivirira sei njodzi dzemagetsi akavhurika?

Muganho wehupamhi hwemutsetse ≥20%, mukana mudiki ≥0.3mm, ukobvu hwemhangura yegomba ≥25μm, uye kuwedzera huwandu hwenzvimbo dzekuyedza.
11. Maitiro ekuisa ma parameter ekuboorera?

Kumhanya kwekutenderera kwakaderera ne20%-30% pane kwePCB yakajairika (inenge 60,000-80,000 revolutions paminiti), uye mwero wekudyisa uri 0.02-0.04mm/rev.
12. Ndeipi nzira yekurapa pamusoro inonyanya kukodzera?

ENIG yakakodzera masaini emagetsi ane ruzha rwakanyanya. OSP ine mutengo wakaderera asi inodzivirira kuoxidation isina simba. Kuisa simbi yegoridhe kwakasimba kwakakodzera maconnector ane ruzha rwakanyanya.
13. Kurasikirwa kwekutumira masaini kwakakwira zvakadii?

Pabhendi remafrequency re10GHz, kurasikirwa kwechiratidzo che6oz copper foil kwakakwira ne1.5dB/inch kupfuura 1oz.
14. Ungadzora sei warpage?

Dhizaini yefoiri yemhangura yakafanana, tembiricha yelamination 180-200℃, kumanikidzwa 100-150psi, mwero wekutonhorera ≤3℃/min.
15. Ndezvipi zvinodiwa kuti madziro egomba ave akaomarara?

IPC standard ≤12.5μm, masaini ekumhanya zvakanyanya anoda ≤5μm, izvo zvinogona kuvandudzwa nekushandisa makemikari emhangura + electroplating filling.
16. Mubereko wekugadzira zvinhu zvakawanda chii?

Avhareji yeindasitiri ndeye 75%-85%, uye goho repamusoro pe6oz rinogona kuderera pasi pe70%.
17. Ndeapi maindasitiri akakodzera kushandiswa?

Mota itsva dzemagetsi (mapombi ekuchaja, ma inverter), magetsi emumaindasitiri, magetsi eseva, ndege nezvimwe.
18. Ndeipi chiyero chekukora kwechikamu chemasiki chesolder?

Mashandisirwo akajairika e 0.8-1.2mil, ane simba guru remagetsi anoda 1.5-2mil, iyo inofanirwa kufukidza foil yemhangura kudzivirira kukambaira.
19. Nzira yekugadzirisa sei mitengo?

Deredza maitiro akakosha, batanidza ukobvu hwefoil yemhangura, wedzera saizi yebatch, uye dzivisa mavhairasi akawanda asina kuvonekwa/akavigwa.
20. Hupenyu hwebasa re electroplating solution hwakaita sei?

Kugona kwemushonga we acidic copper plating solution kunosvika 100-150Ah/L, uye huwandu hwe copper ions nema chloride ions hunofanira kuongororwa nguva nenguva.
21. Chii chinonzi chiyero chekunamatira pakati pefoiri yemhangura nesubstrate?

Simba rekubvisa ganda ≥1.5N/mm (1oz), 3oz inoda ≥2.5N/mm.
22. Ungadzivirira sei kuparadzwa kwefoil yemhangura?

Shandisa substrate ine Tg yakakwira (≥170℃), kumanikidzwa kwakafanana kwekuputira, uye bvisa marara ekuboorera nenguva mushure mekuboorera.
23. Nzira yekudzora sei mwero wekuchekwa kwesimbi?

Tembiricha yemvura inocherwa nealkaline 45-55℃, simba remagetsi rinosvika 1.2-1.3, kumanikidzwa kwespray 0.8-1.2MPa.
24. Ndezvipi zvinodiwa pakushandisa mafuta anofukidza jira?

Mavhaira anofanira kuvharwa zvizere nemasiki ekusolder, uye saizi yekuvhura yakakura ne 0.2-0.3mm kupfuura aperture kudzivirira kuzara kwesolder.
25. Ndezvipi zvinetso zviri mukutonga kwe impedance?

Kuchinja kweukobvu hwefoiri yemhangura kunokonzera kushanduka kweimpedance. Zvakakosha kutevedzera uye kugadzirisa upamhi hwemutsara uye ukobvu hwe dielectric nekutsungirira kwe ±5%.
26. Saizi shoma yekuvhura kwebhokisi ndeyei?

Maitiro enguva dzose i0.3mm, uye kuchera nelaser kunogona kusvika 0.15mm asi nemari yakawanda.
27. Chii chinonzi chiyero chekuyedza kushushikana kwekupisa?

Inofanira kupasa bvunzo yekunyudza tin katatu ye260℃/10s isina kupatsanurwa kwemadziro emaburi kana kubviswa jira remhangura.
28. Chii chinoita kuti foil yemhangura ishande zvisina kunaka pazviratidzo?

Kana roughness Ra ＞3μm, kurasikirwa kwechiratidzo kunowedzera ne10%-15%, uye foil yemhangura ine roughness yakaderera (VLP) inodiwa.
29. Ungadzivirira sei kuwanda kwemagetsi kusina kuenzana?

Shandisa dhizaini yefoiri yemhangura ine mesh, wedzera nzira dze current shunt, uye upamhi hwemitsara yenzira huru ≥10mil.
30. Ndezvipi zvinodiwa kuti pave nehupamhi hwebhiriji remask rinosungirirwa?

Zvakajairika ≥4mil, voltage yakakwira inoda ≥8mil kudzivirira kuputsika kwe flashover.
31. Ndezvipi zvinoitwa pakugadzira maburi uchishandisa ma electroplating?

Kuwanda kwezvino 0.8-1.2A/dm², kudzora kwakaringana kwehuwandu hwekuwedzera, uye nguva yekuisa ma electroplating inopetwa kaviri kusvika katatu kupfuura PCB yakajairika.
32. Ungaona sei kuti pamusoro pacho pakaita sepakadzika?

Shandisa chiyereso che3D optical, chine warpage ≤0.7% uye local deformation ≤0.1mm.
33. Chii chinonzi chiyero chekugona kusundirwa?

Nguva yekunyudza ≤ masekondi matatu, kona yekunyorovesa
34. Nzira yekuvandudza sei kushandiswa kwefoil yemhangura panguva yekugadzira?

Gadzirisa dhizaini yepaneru, deredza marara emuganhu, uye shandisa dhizaini yenzvimbo yekuzoninga yefoil yemhangura ine nhanho.
35. Ndezvipi zvinoumba maitiro ekuisa mhangura yemakemikari?

Kuwanda kwemaion ePalladium 0.02-0.05g/L, tembiricha 30-35℃, nguva yemaminitsi 10-15 kuti madziro egomba afukidzwe zvakaenzana.
36. Maitiro ekuverenga kukosha kwemagetsi anomira?

Ukobvu hwe1mil dielectric hunogona kugara kusvika 500V, uye nzvimbo yekuputira uye nzvimbo yefoil yemhangura zvinofanirwa kugadzirwa zvichienderana nemazinga emagetsi.
37. Nzira yekudzivirira sei oxidation ye copper foil?

Hunyoro hwekuchengetera ≤40%, tembiricha ≤25℃, kurongedza nenguva mushure mekugadzirisa pamusoro, uchishandisa mabhegi asinganyungudike nehunyoro + mishonga yekubvisa hunyoro.
38. Ndezvipi zvinodiwa pakugadzira simbi yemupendero?

Kumhanya kwekucheka kwemuchina wekugaya 25,000-30,000 mapoinzi paminiti, mwero wekudyisa 800-1200mm/min kudzivirira maburi emumucheto.
39. Ndeipi mamiriro ekugadzirisa inki yemasiki inosonerwa?

Bika pa150-160℃ kwemaminitsi 60-90, kuomarara kwe ≥2H, uye kunamira kunopfuura bvunzo yekucheka.
40. Ndezvipi matanho ekudzivirira pakupatsanurwa kwesimba?

Upamhi hwenzvimbo yakakamurwa hunofanira kunge huri ≥20mil, dzivisa ma acute angles, uye batanidza ma power layers akasiyana kuburikidza ne arrays.
41. Ndeipi chiyero chekuomarara kwechikamu chemhangura chakaputirwa nemagetsi?

Kuomarara kweVickers ≥80HV kudzivirira kukuvara kwemuchina uye kupera.
42. Ungagadzirisa sei maburi ekuboorera?

Maitiro eDES, huwandu hwe potassium permanganate 80-100g/L, tembiricha 60-70℃, nguva yemaminitsi 15-20.
43. Nzira yekugadzirisa sei mashandiro epamusoro-soro?

Shandisa zvinhu zve dielectric zvine mazinga akaderera eDk/Df, dzora kushata kwefoil yemhangura, uye gadzirisa kuenderera mberi kwepasi.
44. Nzira yekubvisa sei kushushikana kwakasara mufoshoro yemhangura?

Kunyungudutsa mushure mekunyungudutsa, kuchiramba chiri pa120-150℃ kwemaawa maviri kusvika matatu kuti chibvise kushushikana.
45. Ndezvipi zvinodiwa zvekudzivirira makemikari painki yemasiki inosonerwa?

Inofanira kutsungirira kupukuta ne isopropyl alcohol, flux, nezvimwewo, pasina kuzvimba kana kuchinja ruvara.
46. Ndezvipi zvinodiwa kuti pave nekupatsanurwa kwenzvimbo dzekupisa (thermal vias)?

Kureba kwenzvimbo ≥20mil, kudzivirira kupisa kwakanyanya, uye kuronga maruva eplum kunogona kushandiswa.
47. Ungava sei nechokwadi chekuti electroplating yakafanana?

Tekinoroji ye electroplating inopukutwa, nzvimbo ye anode-to-board iri 10-15cm, uye tarisa nguva nenguva kunyungudika kwe anode.
48. Musiyano wemutengo uripo pakati pekuboorwa kwemuchina nelaser ndeupi?

Mutengo wekuboorera nelaser unodarika ka3-5, asi nekunyatsojeka uye kuvhurika kudiki.
49. Kugadziriswa kwepamusoro kunokanganisa sei kusungirirwa kwesimbi?

Kupinza simbi yesirivha kunokurumidza, ENIG yakavimbika zvikuru, uye OSP inofanira kupedzisa kupinza simbi mukati memaawa makumi manomwe nemaviri.
50. Ungaenzanisa sei coefficient yekuwedzera kwekupisa (CTE)?

Sarudza substrate ine CTE yakafanana neye copper foil (yakadai se high Tg FR-4 ine CTE inosvika 14ppm/℃) kuderedza kushushikana kwekupisa.
51. Ndeipi chiyero chekuvapo kwe electroplated copper layer muma PCB e copper gobvu?

Muyero weIPC unoda ≤10 pores/cm², uye mashandisirwo akavimbika anoda ≤5 pores/cm², izvo zvinogona kuvandudzwa nekushandisa electroplating kuburikidza neburi.
52. Ungaziva sei saizi yepad mukugadzirwa kwemaPCB emhangura akakora?

Dhayamita yepad = dhayamita yegomba + 0.6mm (yakajairika), uye kuwedzera kwe0.1-0.2mm kunodiwa muzvikamu zvemhangura zvakakora kuti zvikwanise kutsiva kutsauka kwekucheka.
53. Ko ruvara rweinki inonamirwa muPCB dzemhangura dzakakora runokanganisa here kupiswa kwekupisa?

Mudziyo weBlack solder une simba guru rekupisa, tembiricha yepamusoro inokwira 3-5℃ kupfuura mudziyo wewhite solder, asi hauna simba guru pakuparadza kupisa kwese.
54. Ndezvipi zvinoitwa pakugadzira nickel-gold isina electroless paPCB dzemhangura dzakakora?

Ukobvu hwechikamu chenickel 3-5μm, ukobvu hwechikamu chegoridhe 0.05-0.1μm, mhinduro yekuisa plating pH 4.8-5.2, tembiricha 85-90℃.
55. Ungabata sei maburrs pamipendero yefoil yemhangura mumaPCB emhangura akakora?

Maitiro ekugadzira zvidimbu zvemakemikari anoshandiswa, huwandu hwekucheka huchidzorwa pa 0.5-1μm, kana kuti kugadzirwa kwekugadzira nemechanical.
56. Ndeipi chiyero chemagetsi ekuyedza voltage yekudzivirira maPCB emhangura akakora?

Voltage yekuedza yakajairika i1000V AC/1 miniti, uye mashandisirwo emagetsi ane simba guru anoda kuwedzerwa kusvika ku2000-5000V AC.
57. Ndezvipi zvinorambidzwa pakuwanda kwewaya pakugadzirwa kwemaPCB emhangura akakora?

Pasi pefoiri yemhangura ye3oz, huwandu hwewaya hwemativi maviri hunokurudzirwa kuti huve ≤15cm²/100cm², uye mabhodhi ane layer yakawanda anofanira kuenzana kuvimbika kwechiratidzo uye kugona kwekutakura magetsi.
58. Ndeipi chiyero che ductility ye electroplated copper layer muma PCB e copper gobvu?

Mwero wekureba kwechiuno unofanirwa kuva ≥20% kuti pasave nekutyoka kana paine kumanikidzwa kwemuchina.
59. Ndezvipi zvinodiwa kuti maburi akaboorwa anyatsojeka mumaPCB emhangura akakora?

Mabhodhi e±50μm (akajairika), uye anomhanya zvakanyanya anofanira kunatsiridzwa kusvika ±25μm, achishandisa sisitimu yekuisa zvinhu nelaser.
60. Ndezvipi zvinodiwa zvekudzivirira tembiricha yeinki inosunga muPCB dzemhangura dzakakora?

Inofanira kutsungirira kusonerazve pa 280℃ kwemasekonzi mashanu isina kusviba kana kutsemuka.
61. Ndeipi nzira yekuyedza simba rekubatanidza pakati pefoiri yemhangura nepakati pePCB dzemhangura dzakakora?

Kuyedzwa kwe90° peel bvunzo kunoshandiswa kunyora simba repeel pahupamhi hweyuniti, nechiyero che ≥1.5N/mm.
62. Ndezvipi zvinorambidzwa kudzika kwema blind vias pakugadzira maPCB emhangura akakora?

Chiyero chekudzika kwegomba risingaonekwe nedhayamita yegomba (aspect ratio) ≤3:1 kudzivirira kuzadza kwakashata kwemagetsi.
63. Ndeipi chiyero che phosphorus mu electroplated copper layer yema electroplates e copper copper gobvu?

Kuwanda kwephosphorus mu electroless nickel plating layer kunofanirwa kudzorwa pa7%-9% kuti ive nechokwadi chekuti ngura haipindi.
64. Nzira yekuwedzera hupenyu hwemuchina wekucheka milling cutter kune maPCB emhangura akakora sei?

Zvigayo zvekucheka zvakaputirwa (zvakadai seTiAlN coating) zvinoshandiswa, uye zvigayo zvekucheka zvinotsiviwa nguva nenguva (zvinotsiviwa pa50-100㎡ yega yega yekugadzirisa).
65. Ndezvipi zvinhu zvakakosha pakugadzira kuvimbika kwechiratidzo mumaPCB emhangura akakora?

Dzora kuenderera mberi kweimpedance, deredza kuburikidza neStub length, shandisa differential signal transmission, uye wedzera shielding layer.
66. Ndeipi chiyero chekushivirira pakukora kwefoil yemhangura mumaPCB emhangura akakora?

±10% (yakajairika), uye mashandisirwo akanyatsojeka anofanirwa kudzorwa mukati me±5%.
67. Ndeipi nzira yekuyedza yekunamira inki inonyungudutsa muPCB dzemhangura dzakakora?

Bvunzo rekucheka-cheka, uye rinofanirwa kana nzvimbo ye 脱落 mushure mekubviswa kwetepi iri ≤5%.
68. Ndeipi nzira yekudira mhangura yemagetsi mukugadzira maPCB emhangura akakora?

Kudururwa kwemhangura kwakafanana negrid kunoshandiswa (nzvimbo yegrid ≤10mil) kuti kuenzane nekutakura kwemagetsi uye kudzoka kwechiratidzo.
69. Ndeipi chiyero chekumanikidzwa kwemukati kwechikamu chemhangura chakaputirwa nemagetsi mumaPCB emhangura akakora?

Kumanikidzwa kwekumanikidzwa ≤15MPa, kumanikidzwa kwekumanikidzwa ≤10MPa, kudzivirira kushanduka kwefoil yemhangura.
70. Ndezvipi zvinodiwa kuti madziro akaboorwa acheneswe nemaPCB emhangura akakora?

Hapana resin residue kana marara ekuboorera, zvakasimbiswa nekutarisa kwechikamu chemetallographic.
71. Ndezvipi zvinodiwa kuti inki inopikisa solder irambe yakatsvuka muPCB dzemhangura dzakakora?

Mushure mekukwegura pa85℃/85% RH kwemaawa 168, mutsauko weruvara ΔE≤3.
72. Ndeipi nzira yekuyera kushata kwepamusoro pefoiri yemhangura mumaPCB emhangura akakora?

Chinoongorora pamusoro pechinhu chinoshandiswa kuyera kukosha kweRa, uye Ra yefoil yemhangura yemazuva ano i≤5μm.
73. Ungaverenga sei simba remagetsi remavias mukugadzirwa kwemaPCB emhangura akakora?

Kamuchina kamwechete ke 0.5mm kanogona kutakura 0.5-1A, uye huwandu hwekamu hunofanira kutsanangurwa zvichienderana nezvinodiwa pari zvino.
74. Ndeipi nzira yekuona kufanana kwechikamu chemhangura chakaiswa electroplated mumaPCB emhangura akakora?

X-ray fluorescence spectrometer (XRF) inoshandiswa kuyera ukobvu hwe copper layer panzvimbo dzakasiyana, nekutsauka ≤10%.
75. Ndezvipi zvinodiwa kuti PCB dzemhangura dzakakora dzigayiwe zvakanaka pamucheto?

Kushivirira kwechiyero chemutsetse ±0.1mm, kutsauka kwekona ±0.5°.
76. Ndedzipi nzira dzekudzivira kuratidzwa kwechiratidzo mumaPCB emhangura akakora?

Gadzirisa terminal impedance, gadzirisa trace topology, uye deredza right-angle traces uye impedance discontinuities.
77. Ungagadzirisa sei foil yemhangura yakasanganiswa muPCB dzemhangura dzakakora?

Kuoxidation kudiki kunogona kurapwa nemakemikari ekucheka, uye oxidation yakanyanya inoda kurapwa patsva.
78. Ndezvipi zvinoumba maitiro ekudhinda inki inopikisa solder resist paPCB dzemhangura dzakakora?

Kusimba kwechidzitiro 25-35N/cm, kumanikidzwa kwe squeegee 3-5kg/cm, kumhanya 30-50mm/s.
79. Maitiro ekugadzirisa chimiro chemapuranga ane maburi akawanda mukugadzirwa kwemaPCB emhangura akakora sei?

Simba remagetsi nepasi zviri pedyo, zviratidzo zviri pakati, uye kufanana kweukobvu hwepakati kunodzorwa.
80. Ndeipi nzira yekuona kuoma kwechikamu chemhangura chakaiswa electroplated mumaPCB emhangura akakora?

Muchina wekuyedza kuomarara we micro-Vickers unoshandiswa, daro riri pakati penzvimbo dzekuyedza ≥0.5mm, uye avhareji yemutengo inotorwa.
81. Nzira yekugadzirisa sei kutsauka kwenzvimbo yegomba remakomba akaboorwa mumaPCB emhangura akakora?

Kuisa chiratidzo panzvimbo kunoshandiswa, uye kutsauka kunoonekwa uye kunodzoserwa nemudziyo weAOI.
82. Ndezvipi zvinodiwa kuti inki inopikisa kukweshana irambe yakasimba muPCB dzemhangura dzakakora?

Mushure mekukwesha 500g (500g pressure), hapana kupera kana kusviba kuri pachena.
83. Nzira yekugadzirisa sei kusawirirana kweCTE pakati pefoiri yemhangura ne substrate mumaPCB emhangura akakora?

Shandisa zvinhu zve buffer layer (senge mafirimu anonamira anofambisa kupisa) kana kugadzira nzvimbo dzinoderedza kushushikana.
84. Ndeipi nzira yekuzadza vias yekupisa mukugadzirwa kwemaPCB emhangura akakora?

Kubatanidza resin + electroplating pamusoro pechinhu zvinogona kushandiswa, kana kuti solder paste filling wozoigadzirisa.
85. Ndeipi nzira yekuona kuti electroplated copper layer iri mu electroplated copper PCBs yakakora ndeyei?

Nzira yekupenya kwegasi kana kuti metallographic microscope observation inoshandiswa kuverenga huwandu hwemaburi panzvimbo imwe neimwe.
86. Chii chinoita kuti kumhanya kwemuchina wekucheka simbi kuite kuti maPCB emhangura akobvu ashande zvakanaka?

Kumhanya kwakanyanya kunogona kukonzera maburrs, uye kumhanya kwakaderera kunokanganisa kushanda zvakanaka, izvo zvinoda kugadziriswa zvichienderana nekukora kwefoil yemhangura.
87. Ndeapi matanho ekudzora kupindirana kwechiratidzo muPCB dzemhangura dzakakora?

Wedzera nzvimbo yekutevera (mutemo we≥3W), isa mitsetse yekudzivirira pasi, uye gadzirisa kugoverwa kwechikamu chenzira.
88. Chii chinoita kuti kushushikana kwasara kwefoil yemhangura kuve kwakasimba pakuvimbika kwemaPCB emhangura akakora?

Kushushikana kwasara kunokonzera kushanduka kwefoil yemhangura uye kutsemuka, zvichideredza kuvimbika kwenguva refu.
89. Ungagadzirisa sei kudhinda kweinki kusina kunaka kwesimbi inonamira paPCB dzemhangura dzakakora?

Zvikanganiso zvemunzvimbo zvinogona kudhindwazve nemaoko, uye zvikanganiso zvemunzvimbo huru zvinoda kudhindwazve uye kugadziriswa.
90. Ndedzipi nheyo dzekugadzira simba kuburikidza nearray mukugadzira maPCB emhangura akakora?

Nekupatsanurana kwe ≥20mil, nhamba yacho inoverengerwa zvichienderana nezvinodiwa nemagetsi, uye zvinogoverwa zvakaenzana.
91. Ndeipi nzira yekuona kushushikana kwemukati kwechikamu chemhangura chakaputirwa nemagetsi mumaPCB emhangura akakora?

Nzira yeX-ray diffraction kana bvunzo ye stress ring inoshandiswa kuyera kukosha kwemukati me stress.
92. Kukombama kwemadziro emaburi akaboorwa kunokonzeresa sei kuputirwa kwemagetsi mumaPCB emhangura akakora?

Kukombama kwakanyanya kunokonzera kusaenzana kwemagetsi uye kuwedzera musiyano wekukora kwemhangura yegomba.
93. Ndezvipi zvinodiwa kuti inki inopikisa solder irambe iri mumaPCB emhangura akakora inofanira kudziviswa nemamiriro ekunze?

Mushure mekuyedzwa kwekuchembera kweUV (maawa mazana mashanu), hapana kusviba kweruvara kana choko.
94. Kugadziriswa kwepamusoro pefoiri yemhangura kunokanganisa sei nguva yekuisa nekubvisa maPCB emhangura akakora?

Kuisa goridhe rakaoma kunogona kugara kwenguva inosvika chiuru (1000), uye kunyudza goridhe kunotora nguva inosvika makumi mashanu kusvika zana (50-100).
95. Ndeipi mari inoshandiswa pakuongorora ma "blind and infilled vias" mukugadzirwa kwema "copper PCB" akakora?

Mutengo wema "vias" akavharirwa neakavharirwa wakakwira ne30%-50% kupfuura wemaburi anoburitswa, uye kuwedzera kwemutengo kwakanyanya kukosha kana paine mhangura yakakora.

PCB yemhangura yakakora

1. Chii chinonzi PCB yemhangura yakakora?

2. Ndezvipi zvinhu zvinowanzo shandiswa pakukora kwefoiri yemhangura?

3. Mutengo wePCB wakakwira zvakadii kupfuura wenguva dzose?

4. Ndeipi nzvimbo shoma yemutsara/nzvimbo yemutsara?

5. Ndezvipi zvinetso zviri kuitika mukushandiswa kwe electroplate?

6. Chii chinonzi chinhu chinocheka?

7. Ungagadzirisa sei dambudziko rekupisa?

8. Chii chinonzi simba rekutakura magetsi mumagetsi ane simba guru?

9. Kukombama kuri sei?

10. Ungadzivirira sei njodzi dzemagetsi akavhurika?

11. Maitiro ekuisa ma parameter ekuboorera?

12. Ndeipi nzira yekurapa pamusoro inonyanya kukodzera?

13. Kurasikirwa kwekutumira masaini kwakakwira zvakadii?

14. Ungadzora sei warpage?

15. Ndezvipi zvinodiwa kuti madziro egomba ave akaomarara?

16. Mubereko wekugadzira zvinhu zvakawanda chii?

17. Ndeapi maindasitiri akakodzera kushandiswa?

18. Ndeipi chiyero chekukora kwechikamu chemasiki chesolder?

19. Nzira yekugadzirisa sei mitengo?

20. Hupenyu hwebasa re electroplating solution hwakaita sei?

21. Chii chinonzi chiyero chekunamatira pakati pefoiri yemhangura nesubstrate?

22. Ungadzivirira sei kuparadzwa kwefoil yemhangura?

23. Nzira yekudzora sei mwero wekuchekwa kwesimbi?

24. Ndezvipi zvinodiwa pakushandisa mafuta anofukidza jira?

25. Ndezvipi zvinetso zviri mukutonga kwe impedance?

26. Saizi shoma yekuvhura kwebhokisi ndeyei?

27. Chii chinonzi chiyero chekuyedza kushushikana kwekupisa?

28. Chii chinoita kuti foil yemhangura ishande zvisina kunaka pazviratidzo?

29. Ungadzivirira sei kuwanda kwemagetsi kusina kuenzana?

30. Ndezvipi zvinodiwa kuti pave nehupamhi hwebhiriji remask rinosungirirwa?

31. Ndezvipi zvinoitwa pakugadzira maburi uchishandisa ma electroplating?

32. Ungaona sei kuti pamusoro pacho pakaita sepakadzika?

33. Chii chinonzi chiyero chekugona kusundirwa?

34. Nzira yekuvandudza sei kushandiswa kwefoil yemhangura panguva yekugadzira?

35. Ndezvipi zvinoumba maitiro ekuisa mhangura yemakemikari?

36. Maitiro ekuverenga kukosha kwemagetsi anomira?

37. Nzira yekudzivirira sei oxidation ye copper foil?

38. Ndezvipi zvinodiwa pakugadzira simbi yemupendero?

39. Ndeipi mamiriro ekugadzirisa inki yemasiki inosonerwa?

40. Ndezvipi matanho ekudzivirira pakupatsanurwa kwesimba?

41. Ndeipi chiyero chekuomarara kwechikamu chemhangura chakaputirwa nemagetsi?

42. Ungagadzirisa sei maburi ekuboorera?

43. Nzira yekugadzirisa sei mashandiro epamusoro-soro?

44. Nzira yekubvisa sei kushushikana kwakasara mufoshoro yemhangura?

45. Ndezvipi zvinodiwa zvekudzivirira makemikari painki yemasiki inosonerwa?

46. ​​Ndezvipi zvinodiwa kuti pave nekupatsanurwa kwenzvimbo dzekupisa (thermal vias)?

47. Ungava sei nechokwadi chekuti electroplating yakafanana?

48. Musiyano wemutengo uripo pakati pekuboorwa kwemuchina nelaser ndeupi?

49. Kugadziriswa kwepamusoro kunokanganisa sei kusungirirwa kwesimbi?

50. Ungaenzanisa sei coefficient yekuwedzera kwekupisa (CTE)?

51. Ndeipi chiyero chekuvapo kwe electroplated copper layer muma PCB e copper gobvu?

52. Ungaziva sei saizi yepad mukugadzirwa kwemaPCB emhangura akakora?

53. Ko ruvara rweinki inonamirwa muPCB dzemhangura dzakakora runokanganisa here kupiswa kwekupisa?

54. Ndezvipi zvinoitwa pakugadzira nickel-gold isina electroless paPCB dzemhangura dzakakora?

55. Ungabata sei maburrs pamipendero yefoil yemhangura mumaPCB emhangura akakora?

56. Ndeipi chiyero chemagetsi ekuyedza voltage yekudzivirira maPCB emhangura akakora?

57. Ndezvipi zvinorambidzwa pakuwanda kwewaya pakugadzirwa kwemaPCB emhangura akakora?

58. Ndeipi chiyero che ductility ye electroplated copper layer muma PCB e copper gobvu?

59. Ndezvipi zvinodiwa kuti maburi akaboorwa anyatsojeka mumaPCB emhangura akakora?

60. Ndezvipi zvinodiwa zvekudzivirira tembiricha yeinki inosunga muPCB dzemhangura dzakakora?

61. Ndeipi nzira yekuyedza simba rekubatanidza pakati pefoiri yemhangura nepakati pePCB dzemhangura dzakakora?

62. Ndezvipi zvinorambidzwa kudzika kwema blind vias pakugadzira maPCB emhangura akakora?

63. Ndeipi chiyero che phosphorus mu electroplated copper layer yema electroplates e copper copper gobvu?

64. Nzira yekuwedzera hupenyu hwemuchina wekucheka milling cutter kune maPCB emhangura akakora sei?

65. Ndezvipi zvinhu zvakakosha pakugadzira kuvimbika kwechiratidzo mumaPCB emhangura akakora?

66. Ndeipi chiyero chekushivirira pakukora kwefoil yemhangura mumaPCB emhangura akakora?

67. Ndeipi nzira yekuyedza yekunamira inki inonyungudutsa muPCB dzemhangura dzakakora?

68. Ndeipi nzira yekudira mhangura yemagetsi mukugadzira maPCB emhangura akakora?

69. Ndeipi chiyero chekumanikidzwa kwemukati kwechikamu chemhangura chakaputirwa nemagetsi mumaPCB emhangura akakora?

70. Ndezvipi zvinodiwa kuti madziro akaboorwa acheneswe nemaPCB emhangura akakora?

71. Ndezvipi zvinodiwa kuti inki inopikisa solder irambe yakatsvuka muPCB dzemhangura dzakakora?

72. Ndeipi nzira yekuyera kushata kwepamusoro pefoiri yemhangura mumaPCB emhangura akakora?

73. Ungaverenga sei simba remagetsi remavias mukugadzirwa kwemaPCB emhangura akakora?

74. Ndeipi nzira yekuona kufanana kwechikamu chemhangura chakaiswa electroplated mumaPCB emhangura akakora?

75. Ndezvipi zvinodiwa kuti PCB dzemhangura dzakakora dzigayiwe zvakanaka pamucheto?

76. Ndedzipi nzira dzekudzivira kuratidzwa kwechiratidzo mumaPCB emhangura akakora?

77. Ungagadzirisa sei foil yemhangura yakasanganiswa muPCB dzemhangura dzakakora?

78. Ndezvipi zvinoumba maitiro ekudhinda inki inopikisa solder resist paPCB dzemhangura dzakakora?

79. Maitiro ekugadzirisa chimiro chemapuranga ane maburi akawanda mukugadzirwa kwemaPCB emhangura akakora sei?

46. Ndezvipi zvinodiwa kuti pave nekupatsanurwa kwenzvimbo dzekupisa (thermal vias)?