Nokuti pcb kopi bhodhi, zvishoma kusava nehanya kunogona kukonzera pasi ndiro deform. Kana iyo isina kuvandudzwa, inokanganisa kunaka uye kuita kweiyo pcb kopi bhodhi. Kana yakaraswa zvakananga, inokonzera kurasikirwa kwemari. Heano dzimwe nzira dzekugadzirisa deformation yeplate yepasi.
01Splicing
Kune magiraidhi ane mitsara yakapfava, upamhi hwemitsara yakakura uye nzvimbo, uye kukanganiswa kusingaenzaniswi, cheka chikamu chakaremara cheiyo bhaisikopo rakashata, woribatanidza zvakare pakatarisana nenzvimbo dzegomba rebhodhi rekuchera, wobva warikopa. Ehe, izvi ndezvemitsara yakakanganiswa Nyore, mutsara wakakura wakafara uye kupatsanurwa, magirafu asina kurongeka; isingakodzeri ma negative ane high wire density uye upamhi hwemutsara uye spacing isingasviki 0.2mm. Paunenge uchibatanidza, unofanirwa kubhadhara zvishoma sezvinobvira kukuvadza waya uye kwete mapedhi. Paunenge uchiongorora iyo vhezheni mushure mekubatanidza uye kukopa, teerera kune iko iko kwehukama hwehukama. Iyi nzira inokodzera firimu risina kunyanya kurongedzerwa uye deformation yega yega yefirimu haipindirani, uye inonyanya kushanda pakugadzirisa solder mask firimu uye firimu remagetsi emagetsi e-multilayer board. .
02PCB kopi bhodhi shanduko gomba chinzvimbo nzira
Pasi pemamiriro ekuziva tekinoroji yekushandisa yedhijitari programming chiridzwa, tanga waenzanisa iyo yakaipa firimu uye yekuchera bvunzo bhodhi, kuyera uye kurekodha kureba nehupamhi hwedhiri yekuchera test board zvichiteerana, uyezve pane yedhijitari programming chiridzwa, zvinoenderana nezvayo. kureba nehupamhi huviri Saizi ye deformation, gadzirisa nzvimbo yegomba, uye gadzirisa yakagadziridzwa yekuboora test board kuti ienderane kune yakaremara negative. Kubatsira kweiyi nzira ndeyekuti inobvisa basa rinonetsa rekugadzirisa zvisina kunaka, uye inogona kuve nechokwadi chekuvimbika uye kurongeka kwemifananidzo. Izvo zvisingabatsiri ndezvekuti kururamisa kwefirimu rakashata rine zvakanyanya kuoma kwenzvimbo deformation uye kusaenzana deformation hakuna kunaka. Kuti ushandise nzira iyi, unofanirwa kutanga wagona kushanda kwedhijitari programming chiridzwa. Mushure mokunge chiridzwa chepurogiramu chinoshandiswa kurebesa kana kupfupisa nzvimbo yegomba, nzvimbo yekunze-yekushivirira yegomba inofanira kuiswa patsva kuti ive nechokwadi. Iyi nzira inokodzera kugadziriswa kwefirimu ine dense mitsetse kana yunifomu deformation yefirimu.
03Land overlap method
Kurisa maburi ari pabhodhi rebvunzo mumapedhi kuti apindirane uye kukanganisa chikamu chedunhu kuti ive nechokwadi cheudiki mhete yehupamhi hwezvinodiwa. Mushure mekuputira kopi, iyo padhi ine elliptical, uye mushure mekuputira kopi, mupendero wemutsara uye dhisiki ichave halo uye yakaremara. Kana mushandisi aine zvakanyanya kuomarara zvinodiwa pakuonekwa kwePCB board, ndapota shandisa nekuchenjerera. Iyi nzira inokodzera firimu rine upamhi hwemutsara uye nzvimbo yakakura kupfuura 0.30mm uye mitsetse yemapateni haina kunyanyisa.
04Kutora mifananidzo
Ingoshandisa kamera kuwedzera kana kuderedza magirafu akaremara. Kazhinji, kurasikirwa kwefirimu kwakakwira, uye zvinodikanwa kugadzirisa kakawanda kuti uwane inogutsa yedunhu pateni. Paunenge uchitora mifananidzo, iyo yakatarisa inofanirwa kuve yakarurama kudzivirira kukanganisa kwemitsara. Iyi nzira inokodzera chete sirivheri yemunyu firimu, uye inogona kushandiswa kana isingaite kudhiraivha bhodhi rebvunzo zvakare uye deformation reshiyo mukureba uye hupamhi mafambiro efirimu zvakafanana.
05Hanging nzira
Tichifunga nezvechiitiko chemuviri chekuti iyo yakaipa firimu inoshanduka nekupisa kwezvakatipoteredza uye unyoro, tora iyo yakaipa firimu kubva mubhegi rakavharwa usati wakopa, uye uisungirire kwemaawa 4-8 pasi pemamiriro ekushanda, kuitira kuti iyo yakaipa firimu yave. akaremara asati akopa. Mushure mekukopa, mukana we deformation mudiki kwazvo.
Kune zvakatoremara negatives, mamwe matanho anofanirwa kutorwa. Nokuti iyo yakaipa firimu ichachinja nekuchinja kwekushisa kwezvakatipoteredza uye hunyoro, kana uchirembera iyo yakaipa firimu, ita shuwa kuti hunyoro uye tembiricha yenzvimbo yekuomesa uye nzvimbo yekushanda zvakafanana, uye inofanirwa kunge iri munzvimbo ine mhepo uye ine rima. kudzivirira iyo yakaipa firimu kubva pakusvibiswa. Iyi nzira yakakodzera kune isina kuchinjika negatives uye inogona zvakare kudzivirira iyo yakaipa kubva mukuremara mushure mekukopwa.