SPT劈刀设计.ppt

apillaryDesignPTDGroupBasic Capillary Design RulesBasic Capillary Design Rules(劈刀基本设计规则)(劈刀基本设计规则)apillaryDesignPTDGroupThe Free Air Ball‘FAB’iscentered inside the capillarychamfer .(金球被真空吸入劈刀内切角处)Bonding SequenceBonding Sequence(焊线顺序(焊线顺序))Cycle 1Cycle 1(第一步)(第一步)::apillaryDesignPTDGroupBall Bond Formation(球形形成)Bonding SequenceBonding Sequence(焊线顺序(焊线顺序))Cycle 2Cycle 2(第二步)(第二步)::apillaryDesignPTDGroupAfter loopingformation, cycleperforms stitchbond profile.(弧度形成后,焊接第二焊点)Bonding SequenceBonding Sequence(焊线顺序)(焊线顺序)Cycle 3Cycle 3(第三步)(第三步)::apillaryDesignPTDGroupTail Formation(尾丝形成)Bonding SequenceBonding Sequence(焊线顺序)(焊线顺序)CycleCycle44(第四步)(第四步)::apillaryDesignPTDGroupDetach tail fromthe stitch.(从第二焊点处拉断尾丝)Bonding SequenceBonding Sequence(焊线顺序)(焊线顺序)Cycle 5Cycle 5(第五步)(第五步)::apillaryDesignPTDGroupFree Air Ball‘FAB’Formation(打火烧球形成金球)Bonding SequenceBonding Sequence(焊线顺序)(焊线顺序)Cycle 6Cycle 6(第六步)(第六步)::apillaryDesignPTDGroupCapillary Travel PathForming a Typical LoopProfile(劈刀行程路线形成弧度形状)Looping FormationLooping Formation(弧度形成)(弧度形成)::apillaryDesignPTDGroupCapillary dimensions affects theCapillary dimensions affects theball bondball bondformationformation(影响第一焊点的劈刀尺寸参数)(影响第一焊点的劈刀尺寸参数)::TFAHCDOR1stBond (Ball)(变形后的金球)apillaryDesignPTDGroupHole Size (H)Hole Size (H)(孔径)(孔径)HWDH(孔径)= WD(线径)+ 40%±10%mended(推荐): H = Fine Pitch(小间距):H = (min)