申请人:Northrop Grumman Corporation
公开号:US05766528A1
公开(公告)日:1998-06-16
A method for producing ceramic tape used to fabricate electronic devices while eliminating continued shrinkage of the unfired tape. Chemical agents are added to a mixture of ceramic powder and binder to manipulate the crosslinking of the binder. A first approach involves promoting the crosslinking reaction to completion quickly. The second approach involves preventing the crosslinking reaction during the tape slurry mixing and casting processes. A solvent is used to accelerate the crosslinking of the binder in which the solvent may include one or more of acetone, acetylacetone, toluene and ethanol. Preferably, the solvent is a combination of acetone and acetylacetone. A polyhydroxy compound, such as glycerine, may be added to accelerate the crosslinking reaction of the binder. The boron in the tape may alternatively be rendered inoperative as a crossing agent for the binder by pre-reacting the boron with the Lewis base prior to contact with the binder. The preferred Lewis base is an organic amine, such as piperidine.
一种生产陶瓷带的方法,用于制造电子设备,同时消除未烧结带材的持续收缩。将化学试剂添加到陶瓷粉末和粘结剂的混合物中,以操纵粘结剂的交联。第一种方法涉及快速促进交联反应的完成。第二种方法涉及在带浆混合和铸造过程中防止交联反应。溶剂用于加速粘结剂的交联,其中溶剂可能包括丙酮,乙酰丙酮,甲苯和乙醇中的一个或多个。最好,溶剂是丙酮和乙酰丙酮的组合。可以添加多羟基化合物,如甘油,以加速粘结剂的交联反应。带材中的硼可以通过在接触粘结剂之前与路易斯碱预反应而选择性地失活作为粘结剂的交联剂。优选的路易斯碱是有机胺,如哌啶。