1.Design maka nrụpụta nke PCBA                  

Nrụpụta nrụpụta nke PCBA na-edozi nsogbu nke mgbakọ, yana ebumnuche bụ iji nweta ụzọ usoro kacha nso, ọnụego ngafe kachasị elu, yana ọnụ ahịa mmepụta kacha ala. The imewe ọdịnaya tumadi gụnyere: usoro ụzọ imewe, components layout imewe na mgbakọ n'elu, pad na solder mask imewe (metụtara ngafe-site ọnụego), mgbakọ thermal imewe, mgbakọ pụrụ ịdabere imewe, wdg.

(1)PCBA nrụpụta

The manufacturability imewe nke PCB na-elekwasị anya na "manufacturability", na imewe ọdịnaya na-agụnye efere nhọrọ, pịa-dabara Ọdịdị, annular mgbanaka imewe, solder nkpuchi imewe, elu ọgwụgwọ na panel imewe, wdg Ndị a aghụghọ na-niile metụtara nhazi ike nke. PCB. Oke site na usoro nhazi na ikike, opekempe ahịrị obosara na oghere ahịrị, dayameta oghere kacha nta, obosara mgbanaka mpe mpe akwa, na oghere mkpuchi opekempe ga-adabarịrị na ike nhazi PCB. Ngwunye a haziri The oyi akwa na lamination ga-adabarịrị na teknụzụ nhazi PCB. Ya mere, nrụpụta nrụpụta nke PCB na-elekwasị anya na-ezute ike usoro nke ụlọ ọrụ PCB, yana ịghọta usoro nrụpụta PCB, usoro nhazi na ikike usoro bụ ihe ndabere maka imejuputa nhazi usoro.

(2) Mgbakọ nke PCBA

The PCBA si assembleability imewe na-elekwasị anya na “mgbakọta”, ya bụ, ka guzosie ike na siri ike processability, na iji nweta elu-edu, elu-arụmọrụ na ala-eri soldering. Ọdịnaya nke imewe na-agụnye ngwungwu nhọrọ, pad imewe, mgbakọ usoro (ma ọ bụ usoro ụzọ imewe), akụrụngwa okirikiri nhọrọ ukwuu, ígwè ntupu imewe, wdg All ndị a imewe chọrọ dabere na elu ịgbado ọkụ mkpụrụ, elu n'ichepụta arụmọrụ, na ala n'ichepụta ego.

2. Laser soldering usoro

Teknụzụ na-ere ọkụ laser bụ iji ntụpọ laser lekwasịrị anya nke ọma n'akụkụ pad ahụ. Mgbe ị nwetasịrị ike laser ahụ, ebe a na-ere ihe na-ekpo ọkụ ngwa ngwa iji gbazee ihe na-ere ya, wee kwụsị irradiation laser iji mee ka ebe a na-ere ihe dị jụụ ma mee ka ihe ahụ sie ike ka ọ bụrụ nkwonkwo na-ejikọta ya. Ebe a na-agbado ọkụ na-ekpo ọkụ n'ógbè ahụ, okpomọkụ adịghịkwa emetụta akụkụ ndị ọzọ nke mgbakọ ahụ dum. Oge irradiation laser n'oge ịgbado ọkụ na-abụkarị naanị narị milliseconds ole na ole. Ịzụ ahịa na-abụghị kọntaktị, enweghị nrụgide n'ibu na mpe mpe akwa, itinye oghere dị elu.

Laser ịgbado ọkụ kwesịrị ekwesị maka nhọrọ reflow soldering usoro ma ọ bụ njikọ iji tin waya. Ọ bụrụ na ọ bụ mpaghara SMD, ị ga-ebu ụzọ tinye tapawa solder, wee mechaa solder. A na-ekewa usoro ire ere ụzọ abụọ: nke mbụ, a na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, na nkwonkwo na-ekpo ọkụ na-ekpo ọkụ. Mgbe nke ahụ gasịrị, a na-agbazekwa ihe ndị a na-eji eme ihe maka ire ere, ihe na-ere ya na-agbazekwa pad ahụ kpamkpam, n'ikpeazụ na-eme njikọ na-ere ihe. Iji laser generator na ngwa anya na-elekwasị anya components maka ịgbado ọkụ, elu ike njupụta, elu okpomọkụ nyefe arụmọrụ, na-abụghị kọntaktị ịgbado ọkụ, solder nwere ike ịbụ solder mado ma ọ bụ tin waya, karịsịa kwesịrị ekwesị maka ịgbado ọkụ obere solder nkwonkwo na obere oghere ma ọ bụ obere solder nkwonkwo na ala ike. , na-azọpụta ike.

3.Laser ịgbado ọkụ imewe chọrọ maka PCBA

(1) Akpaaka mmepụta PCBA nnyefe na n'ọnọdu imewe

Maka mmepụta na mgbakọ na-akpaghị aka, PCB ga-enwerịrị akara ndị kwekọrọ n'ọnọdu anya, dị ka akara Mark. Ma ọ bụ ọdịiche nke mpe mpe akwa doro anya, na igwefoto a na-ahụ anya na-edobekwa ya.

(2) Usoro ịgbado ọkụ na-ekpebi okirikiri nhọrọ ukwuu

Usoro ịgbado ọkụ ọ bụla nwere ihe nke ya chọrọ maka nhazi nke akụrụngwa, na nhazi nke akụrụngwa ga-enwerịrị ihe achọrọ nke usoro ịgbado ọkụ. Nhazi sayensị na nke ezi uche dị na ya nwere ike belata nkwonkwo solder ọjọọ ma belata iji ngwá ọrụ.

(3) Chepụta iji melite ịgbado ọkụ ngafe ọnụego

Nhazi nke mpe mpe akwa, ihe mgbochi na stencil Pad na nrụnye ntụtụ na-ekpebi udi nke nkwonkwo solder ma chọpụtakwa ikike ịmịnye ihe nchara gbazere. The ezi uche imewe nke arịọnụ oghere na-enweta a tin penetration ọnụego nke 75%.