公开(公告)号：US5487954A

公开(公告)日：1996-01-30

申请号：US802354

申请日：1991-12-04

Applicant: Tsung-Shune Chin ,  Ming-Cheng Deng

Inventor： Tsung-Shune Chin ,  Ming-Cheng Deng

IPC: C01G49/00 ,  C01G49/06 ,  C01G49/08 ,  C01G51/00 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  H01F1/11 ,  H01F10/10 ,  G11B5/66 ,  C01G49/02 ,  C04B35/00

CPC classification number: C01G49/06 ,  G11B5/70668 ,  G11B5/70673 ,  C01P2002/52 ,  C01P2006/42 ,  Y10S428/90

Abstract: The non-acicular modified maghemite and magnetite have high coercivity of, for the maghemite, up to 2200 Oe, saturation and residual magnetization of 63-85 emu/g and 43-52 emu/g, respectively; for the magnetite, the corresponding values are 800-1600 Oe, 82-87 emu/g, and 44-51 emu/g, respectively; while retaining same squareness ratio and same chemistry with conventional iron oxides, fine particle size of around 50 nm, easier dispersion and coating, invaried properties after curing, and low value of temperature coefficient of coercivity (0.24-0.37%/.degree. C. for the maghemite and 0.20-0.33%/.degree. C. for the magnetite), have been invented. They are thus especially suitable for high density recording. The modified maghemite and magnetite are prepared by precipitating from aqueous solution containing Fe, Mn, Co and Zn ions at proper ratio using an organic alkali as precipitant, followed by specific heat treatment sequences.

Abstract translation: 非针状改性磁赤铁矿和磁铁矿对于磁赤铁矿具有高达2200 Oe，饱和和剩余磁化强度分别为63-85 emu / g和43-52 emu / g的矫顽力; 对于磁铁矿，相应的值分别为800-1600 Oe，82-87 emu / g和44-51 emu / g; 同时保持与常规铁氧化物相同的矩形比和相同的化学性质，约50nm的细粒度，易于分散和涂覆，固化后的韧性，以及矫顽力温度系数的低值（0.24-0.37％/℃ 磁赤铁矿和0.20-0.33％/℃的磁铁矿）已被发明。 因此，它们特别适用于高密度记录。 通过使用有机碱作为沉淀剂，以适当的比例从含有Fe，Mn，Co和Zn离子的水溶液中沉淀出改性的磁赤铁矿和磁铁矿，然后进行比热处理。

公开(公告)号：US5366761A

公开(公告)日：1994-11-22

申请号：US76074

申请日：1993-06-11

Applicant: Tsung-Shune Chin ,  Sung-Lin Hsu ,  Ming-Cheng Deng

Inventor： Tsung-Shune Chin ,  Sung-Lin Hsu ,  Ming-Cheng Deng

IPC: C01G49/00 ,  C01G49/06 ,  C04B35/26 ,  C04B35/628 ,  G11B5/706 ,  H01F1/11 ,  B05D5/12

CPC classification number: C04B35/62826 ,  C01G49/0036 ,  C01G49/06 ,  C04B35/2683 ,  C04B35/6265 ,  G11B5/70657 ,  C01P2002/72 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/84 ,  C01P2006/42 ,  C04B2235/3215 ,  C04B2235/3272 ,  C04B2235/444 ,  C04B2235/5276

Abstract: A method for preparing a barium-ferrite-coated, needle-shaped .gamma.-Fe.sub.2 O.sub.3 magnetic powder of better properties is provided. The method includes the following steps of a) letting an iron-containing solution undergo a reaction to precipitate a needle-shaped .alpha.-FeOOH phase powder, b) mixing said .alpha.-FeOOH powder into a barium-containing solution in a predetermined Fe/Ba ratio, c) filtering without washing the precipitated powder, and d) subjecting the precipitated powder to heat treatments including calcination, reduction and oxidation.

Abstract translation: 提供了一种制备具有更好性能的钡铁氧体涂层的针状γ-Fe2O3磁粉的方法。 该方法包括以下步骤：a）使含铁溶液经历反应以沉淀针状α-FeO​​OH相粉末，b）将所述α-FeO​​OH粉末混合成预定Fe / Ba的含钡溶液 比例，c）过滤而不洗涤沉淀的粉末，以及d）对沉淀的粉末进行热处理，包括煅烧，还原和氧化。

公开(公告)号：US20080305635A1

公开(公告)日：2008-12-11

申请号：US11759622

申请日：2007-06-07

Applicant: Shih-Chang Tsai ,  Chun-Hung Lee ,  Ming-Cheng Deng ,  Ta-Hung Yang

Inventor： Shih-Chang Tsai ,  Chun-Hung Lee ,  Ming-Cheng Deng ,  Ta-Hung Yang

IPC: H01L21/311 ,  H01L21/31

CPC classification number: H01L21/0337

Abstract: A method for fabricating a patter is provided as followed. First, a material layer is provided, whereon a patterned hard mask layer is formed. A spacer is deposited on the sidewalls of the patterned hard mask layer. Then, the patterned hard mask layer is removed, and an opening is formed between the adjacent spacers. Afterwards, a portion of the material layer is removed to form a patterned material layer by using the spacer as mask.

Abstract translation: 提供了一种制造图案的方法。 首先，提供材料层，其中形成图案化的硬掩模层。 间隔物沉积在图案化的硬掩模层的侧壁上。 然后，去除图案化的硬掩模层，并且在相邻间隔件之间形成开口。 然后，通过使用间隔物作为掩模，去除材料层的一部分以形成图案化的材料层。

公开(公告)号：US5384158A

公开(公告)日：1995-01-24

申请号：US217370

申请日：1994-03-24

Applicant: Tsung-Shune Chin ,  Wei-Der Chang ,  Ming-Cheng Deng

Inventor： Tsung-Shune Chin ,  Wei-Der Chang ,  Ming-Cheng Deng

IPC: G11B5/64 ,  G11B5/84 ,  G11B5/842 ,  H01F10/02

CPC classification number: G11B5/656 ,  G11B5/84 ,  G11B5/842

Abstract: A method for preparing a magnetic recording medium includes the following steps of providing a substrate; providing a solution consisting essentially of ions of cobalt, manganese and iron in deionized water; and preheating the substrate and spraying the solution onto the preheated substrate at an elevated temperature to uniformly distribute droplets thereon and form a magnetic recording medium film on the subtrate. Such method can prepare a magnetic thin film which has a high recording density and is cost-effective.

Abstract translation: 制备磁记录介质的方法包括以下步骤：提供衬底; 提供基本上由去离子水中的钴，锰和铁离子组成的溶液; 并预热基板并在升高的温度下将溶液喷射到预热的基板上，以在其上均匀地分布液滴，并在缓冲液上形成磁记录介质膜。 这种方法可以制备具有高记录密度并具有成本效益的磁性薄膜。

公开(公告)号：US07939451B2

公开(公告)日：2011-05-10

申请号：US11759622

申请日：2007-06-07

Applicant: Shih-Chang Tsai ,  Chun-Hung Lee ,  Ming-Cheng Deng ,  Ta-Hung Yang

Inventor： Shih-Chang Tsai ,  Chun-Hung Lee ,  Ming-Cheng Deng ,  Ta-Hung Yang

IPC: H01L21/302

CPC classification number: H01L21/0337

Abstract: A method for fabricating a patter is provided as followed. First, a material layer is provided, whereon a patterned hard mask layer is formed. A spacer is deposited on the sidewalls of the patterned hard mask layer. Then, the patterned hard mask layer is removed, and an opening is formed between the adjacent spacers. Afterwards, a portion of the material layer is removed to form a patterned material layer by using the spacer as mask.

Abstract translation: 提供了一种制造图案的方法。 首先，提供材料层，其中形成图案化的硬掩模层。 间隔物沉积在图案化的硬掩模层的侧壁上。 然后，去除图案化的硬掩模层，并且在相邻间隔件之间形成开口。 然后，通过使用间隔物作为掩模，去除材料层的一部分以形成图案化的材料层。

公开(公告)号：US5294312A

公开(公告)日：1994-03-15

申请号：US54516

申请日：1993-04-28

Applicant: Tsung-Shune Chin ,  Wei-Der Chang ,  Ming-Cheng Deng

Inventor： Tsung-Shune Chin ,  Wei-Der Chang ,  Ming-Cheng Deng

IPC: C23C14/14 ,  C23C14/34 ,  G11B5/64 ,  C23C14/00

CPC classification number: G11B5/653 ,  C23C14/14 ,  C23C14/3414 ,  G11B5/656

Abstract: A method for preparing a magnetic recording medium includes the steps of providing a substrate, providing an alloy composite target attaching thereon Co and Fe pellets to modify the composition of this magnetic recording medium, and utilizing the target to form a (Co,Mn) modified .gamma.-Fe.sub.2 O.sub.3 thin film on the substrate under controlled conditions. Such method can provide a magnetic recording medium which is cost-effective and has a better SNR, a better resistance to corrosion and a high coercivity.

Abstract translation: 制备磁记录介质的方法包括提供基板，提供附着有Co和Fe颗粒的合金复合靶，以改变该磁记录介质的组成，并利用该靶形成（Co，Mn）改性的 （γ）-Fe 2 O 3薄膜在受控条件下。 这种方法可以提供成本有效且具有更好的SNR，更好的耐腐蚀性和高矫顽力的磁记录介质。