OSP usoro nke PCB mbadamba

1. Na mgbakwunye na mmanụ

Mmetụta nke mwepụ mmanụ na-emetụta kpọmkwem ihe nkiri na-emepụta àgwà. Mwepụ mmanụ na -adịghị mma, ọkpụrụkpụ ihe nkiri ahụ abụghị otu. N’aka nke aka, enwere ike ịchịkwa itinye uche n’ime usoro usoro site na inyocha azịza ya. N’aka nke ọzọ, kwesịkwara ịlele ugboro ugboro ma mmetụta nke iwepụ mmanụ dị mma, ma ọ bụrụ na mmetụta nke iwepụ mmanụ adịghị mma, a ga-edochi ya n’oge na mgbakwunye na mmanụ.

2. Micro erosion

Ebumnuche nke microetching bụ ịkpụpụta ọla kọpa siri ike maka imepụta ihe nkiri dị mfe. Ọkpụrụkpụ nke micro-etching na-emetụta kpọmkwem ihe nkiri a na-akpụ, n’ihi ya, ọ dị ezigbo mkpa idobe nkwụsi ike nke ọkpụrụkpụ micro-etching iji mepụta ọkpụrụkpụ ihe nkiri kwụsiri ike. N’ozuzu, ọ dabara adaba ijikwa ọkpụrụkpụ microetching na 1.0-1.5um. Tupu ngbanwe nke ọ bụla, enwere ike ịlele ọnụọgụ micro-erosion, na oge micro-erosion nwere ike ikpebi dịka ọnụọgụ micro-erosion si dị.

3. N’ime ihe nkiri

Ekwesịrị iji mmiri DI saa ahụ tupu e mepụta ihe nkiri iji gbochie mmetọ ihe nkiri na -akpụpụta mmiri mmiri. Ekwesịrị iji mmiri DI saa ahụ mgbe emechara ihe nkiri, ekwesịrị ịchịkwa uru PH n’etiti 4.0 na 7.0 iji gbochie ihe nkiri ahụ ka ọ ghara imetọ ma mebie. Igodo nke usoro OSP bụ ịchịkwa ọkpụrụkpụ nke ihe nkiri mgbochi oxidation. Ihe nkiri a dị gịrịgịrị ma nwee ikike mmetụta adịghị mma. Na ịgbado ọkụ, ihe nkiri ahụ enweghị ike iguzogide oke okpomọkụ (190-200 ° C), nke na-emetụta arụmọrụ ịgbado ọkụ. Na eriri mgbakọ eletrọnịkị, enweghị ike ịgbaze ihe nkiri ahụ nke ọma site na flux, nke na-emetụta arụmọrụ ịgbado ọkụ. Oke ọkpụrụkpụ ihe nkiri nchịkwa ka dabara adaba n’etiti 0.2-0.5um.