CCL (Copper Clad Laminate) bụ iji nweta ohere ohere na PCB dị ka ọkwa ntụaka, wee jupụta ya na ọla kọpa siri ike, nke a makwaara dị ka ịkwanye ọla kọpa.
Ihe CCL pụtara dị ka n'okpuru:
- belata mgbochi ala ma melite ikike mgbochi nnyonye anya
- belata ọdịda voltaji ma melite arụmọrụ ike
- ejikọrọ na ala ma nwee ike belata mpaghara nke loop.
Dị ka njikọ dị mkpa nke PCB imewe, n'agbanyeghị na anụ ụlọ Qingyue Feng PCB imewe software, nakwa ụfọdụ mba ọzọ Protel, PowerPCB nyere nwere ọgụgụ isi ọla kọpa ọrụ, otú e si etinye ezi ọla kọpa, M ga-eso gị na-ekerịta ụfọdụ nke m echiche, olileanya na-eweta. uru na ụlọ ọrụ.
Ugbu a iji mee ka PCB ịgbado ọkụ dị ka o kwere mee na-enweghị nrụrụ, ọtụtụ ndị na-emepụta PCB ga-achọkwa onye nrụpụta PCB ka o jiri ọla kọpa ma ọ bụ waya ala dị ka grid mejupụta oghere nke PCB. Ọ bụrụ na ejizighị CCL nke ọma, ọ ga-ebute nsonaazụ ọjọọ karịa. CCL “dị mma karịa mmerụ ahụ” ma ọ bụ “dị njọ karịa ezi”?
N'okpuru ọnọdụ nke elu ugboro, ọ ga-arụ ọrụ na e biri ebi sekit osisi wiring capacitance, mgbe ogologo bụ karịa 1/20 nke mkpọtụ ugboro kwekọrọ ekwekọ wavelength, mgbe ahụ nwere ike na-emepụta antenna mmetụta, mkpọtụ ga-amalite site wiring, ma ọ bụrụ na. enwere CCL na-adịghị mma na PCB, CCL ghọrọ ngwá ọrụ nke nnyefe ụda, ya mere, na sekit ugboro ugboro, ekwenyeghị na ọ bụrụ na ị jikọọ waya ala na ala ebe, nke a bụ "ala", N'ezie. , ọ ghaghị ịbụ ihe na-erughị oghere nke λ / 20, gbanye oghere na cabling na multilayer ground flight "nke ọma na-adabere". Ọ bụrụ na ejiri CCL mee ihe nke ọma, ọ bụghị naanị na ọ ga-abawanye ugbu a, kamakwa ọ na-arụ ọrụ abụọ nke mkpuchi mkpuchi.
Enwere ụzọ abụọ bụ isi nke CCL, ya bụ mkpuchi ọla kọpa buru ibu na ọla kọpa ntupu, a na-ajụkarịkwa, nke kacha mma, ọ siri ike ikwu. Gịnị kpatara? Nnukwu ebe nke CCL, na-abawanye nke ugbu a na-echebe dual ọrụ, ma e nwere nnukwu ebe nke CCL, na osisi nwere ike ịghọ warped, ọbụna afụ ma ọ bụrụ na site ife soldering. Ya mere, n'ozuzu ga-emeghe a ole na ole ohere mpere iji belata na ọla kọpa bubbling, The ntupu CCL bụ tumadi echebe, na-amụba ọrụ nke ugbu a na-ebelata, Site n'ọnọdụ nke okpomọkụ dissipation, okporo nwere uru (ọ na-ebelata kpo oku elu nke ọla kọpa) na-egwuri a ụfọdụ ọrụ nke electromagnetic shielding. Ma, ọ ga-kwuru na okporo na-mere site alternating direction nke na-agba ọsọ, anyị maara maka akara obosara maka ọrụ ugboro nke sekit osisi nwere ya kwekọrọ ekwekọ "electricity" ogologo nke (n'ezie size kewara site na-arụ ọrụ ugboro nke kwekọrọ ekwekọ dijitalụ). ugboro, ihe akwụkwọ), mgbe ọrụ ugboro adịghị elu, ikekwe ọrụ nke grid ahịrị na-adịghị doro anya, ozugbo ogologo eletriki na-arụ ọrụ ugboro matching, dị nnọọ njọ, ị ga-ahụ na sekit agaghị arụ ọrụ nke ọma, Emission mgbaàmà nnyonye anya usoro na-arụ ọrụ n'ebe nile. Ya mere, n'ihi na ndị na-eji okporo, ndụmọdụ m bụ ịhọrọ dị ka ọnọdụ ọrụ nke sekit osisi imewe, kama ijide na otu ihe.Ya mere, elu ugboro circuit mgbochi nnyonye anya chọrọ nke multi-purpose grid, ala ugboro sekit na elu ugbu a sekit na ndị ọzọ a na-ejikarị zuru ezu wuruwuru.
Na CCL, iji kwe ka ọ nweta mmetụta anyị tụrụ anya ya, mgbe ahụ akụkụ CCL kwesịrị ịṅa ntị na nsogbu ndị dị:
1. Ọ bụrụ na ala nke PCB bụ ihe ọzọ, nwere SGND, AGND, GND, wdg, ga-adabere na ọnọdụ nke PCB osisi ihu, karị ime ka isi "ala" dị ka akwụkwọ ntụaka maka onwe CCL, ka digital na Analọgụ ikewapụ ọla kọpa , tupu mepụta CCL, mbụ niile, obi ike kwekọrọ ekwekọ ụdọ: 5.0 V, 3.3 V, wdg, otú a, a ọnụ ọgụgụ nke dị iche iche shapes na-guzobere ọzọ deformation Ọdịdị.
2. Maka otu njikọ njikọ nke ebe dị iche iche, usoro bụ iji jikọọ site na 0 ohm nguzogide ma ọ bụ magnetik bead ma ọ bụ inductance;
3. CCL nso oscillator kristal. Oscillator kristal dị na sekit bụ isi iyi ikuku ugboro ugboro. Usoro a bụ iji mkpuchi ọla kọpa gbachie oscillator kristal wee gbanye shea nke oscillator kristal iche iche.
4.The nsogbu nke nwụrụ anwụ zone, ma ọ bụrụ na-eche na ọ bụ nnọọ nnukwu, mgbe ahụ tinye a ala via na ya.
5. Ná mmalite nke wiring, kwesịrị ka a na-emeso dokwara maka ala wiring , anyị kwesịrị waya n'ala nke ọma mgbe wiring , enweghị ike ịdabere na tinye vias mgbe okokụre CCL iji kpochapụ ntụtụ ala maka njikọ, mmetụta a dị nnọọ ukwuu. ọjọọ.
6. Ọ ka mma ịghara inwe akụkụ dị nkọ na osisi (= 180 Celsius), n'ihi na site n'echiche nke electromagnetism, nke a ga-emepụta antenna na-ebufe, ya mere m na-atụ aro iji akụkụ nke arc.
7. Multilayer n'etiti oyi akwa wiring mapụtara ebe, adịghị ọla kọpa, n'ihi na ọ bụ ike ime ka CCL ka "n'ala"
8.the metal n'ime akụrụngwa, dị ka metal radiator, metal mkwado warara, ga-enweta "ezi grounding".
9.The jụrụ metal ngọngọ nke atọ-terminal voltaji stabilizer na grounding kewapụrụ belt nso kristal oscillator ga-ọma n'ala. Na okwu: CCL na PCB, ọ bụrụ na edozi nsogbu nke ala nke ọma, ọ ga-abụrịrị "dị mma karịa ihe ọjọọ", ọ nwere ike ibelata ebe mgbama akara azụghachi azụ, belata ihe mgbaàmà mpụga electromagnetic.