公开(公告)号：UST976003I4

公开(公告)日：1978-11-07

申请号：US852992

申请日：1977-11-18

申请人： William D. Kehr ,  Harold L. Turk

发明人： William D. Kehr ,  Harold L. Turk

IPC分类号： C04B35/26

CPC分类号： C04B35/265

摘要： a nickel-zinc ferrite material suitable for use in magnetic heads is disclosed. The material has a general empirical formula(Ni.sub.1-y Zn.sub.y).sub.l-x Fe.sub.2+x O.sub.3.99wherein x is less than 0 and greater than -0.040, y is from about 0.44 to about 0.58, and wherein the ratio of %NiO/%ZnO is from about 0.72 to about 1.27, and wherein the mole percent of NiO is from about 21.5 to about 28.5%, and the mole percent ZnO is from about 22.5 to about 29.5%, and the mole percent Fe.sub.2 O.sub.3 is from about 48 to about 50%. More specific composition ranges as well as a preferred composition are also disclosed.

公开(公告)号：US4350116A

公开(公告)日：1982-09-21

申请号：US219075

申请日：1980-12-22

申请人： Johannes Grandia ,  William G. McChesney ,  Hugo A. E. Santini ,  Harold L. Turk

发明人： Johannes Grandia ,  William G. McChesney ,  Hugo A. E. Santini ,  Harold L. Turk

IPC分类号： C30B19/06 ,  B05C13/02

CPC分类号： C30B19/068 ,  Y10S269/903

摘要： A holder for liquid phase epitaxial (LPE) growth which eliminates mesas on the surface of the film is described. The holder has two legs to which a ring is connected. The ring has holding means so that it can hold one wafer or two wafers back-to-back. One of the two legs extends vertically below the first ring. In a preferred embodiment a second ring having holding means for a pair of wafers back-to-back is attached to the elongated leg. This holder structure prevents a film from the liquid melt from forming when the holder is withdrawn from the liquid growth solution, thereby eliminating the formation of mesas which occur when the film ruptures.

摘要翻译： 描述了用于消除膜表面上的台面的液相外延（LPE）生长的保持器。 支架具有两个连接环的支脚。 环具有保持装置，使得其可以背对背地保持一个晶片或两个晶片。 两条腿中的一条垂直于第一环的下方延伸。 在优选实施例中，具有用于一对背板背对的保持装置的第二环连接到细长的腿上。 当保持器从液体生长溶液中取出时，该保持器结构防止了液体熔融物的形成，从而消除了当膜破裂时出现的台面的形成。