序號2.5.3 2.5.4 IPC-A-600F 2級和3級標准差異清單 檢驗項目 2級 3級 *孔內空洞不大于1個 鍍銅層空洞 *含空洞的孔數不超過5% *空洞長度不超過孔長的5% *孔內無空洞 *空洞的環行度不大于90度 *孔內空洞不超過3個 *孔內空洞不超過1個﹐且含空洞的 成品涂覆層的鍍層空洞 *含空洞的孔數不超過5% ...
PCB manufacturers typically use IPC-A-610 Class2 or a more advanced IPC-A-610 Class3 as the PCB manufacturing standard. IPCB supports both IPC-A-610 Class2 and IPC-A-610 Class3. What is the difference betweenIPC Class2 vs IPC Class3? Please click to refer to this document -IPC-Class...