Invention Grant
US4551212A Bath and process for the electrodeposition of micromachinable copper and
additive for said bath
失效
用于所述浴的可微加工铜和添加剂的电沉积的浴和工艺
- Patent Title: Bath and process for the electrodeposition of micromachinable copper and additive for said bath
- Patent Title (中): 用于所述浴的可微加工铜和添加剂的电沉积的浴和工艺
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Application No.: US710290Application Date: 1985-03-11
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Publication No.: US4551212APublication Date: 1985-11-05
- Inventor: Srinivas T. Rao , Louis Trager
- Applicant: Srinivas T. Rao , Louis Trager
- Applicant Address: NJ Princeton
- Assignee: RCA Corporation
- Current Assignee: RCA Corporation
- Current Assignee Address: NJ Princeton
- Main IPC: C25D3/38
- IPC: C25D3/38
Abstract:
It has been found that an additive comprising a mixture of phenazine dyestuffs in the combination from about 30 to 40 percent by weight of (a) a Janus Green B type dyestuff or a mixture thereof and (b) from about 70 to 60 percent by weight of Safranine T, when added to an aqueous acidic copper sulfate bath in the amount of about 0.03 to about 0.10 gram per liter of the bath, deposits copper consistently with the required properties for micromachining.
Public/Granted literature
- US5669105A Adjustable door hinge Public/Granted day:1997-09-23
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