FLUX AND SOLDER PASTE
    1.
    发明公开

    公开(公告)号:US20240278360A1

    公开(公告)日:2024-08-22

    申请号:US18568943

    申请日:2022-06-21

    IPC分类号: B23K35/36 B23K35/26 C08L93/04

    摘要: A flux and a solder paste capable of minimizing the time-dependent changes in viscosity when stored at 30° C. and minimizing the coloration of flux residues while having favorable reflow properties and favorable cleanability of flux residues are provided. As such a flux, a flux containing a rosin, a thixotropic agent, an activator, and a solvent is adopted. The rosin includes one or more selected from the group consisting of an acid-modified rosin, a hydrogenated rosin, and an acid-modified hydrogenated rosin, and the thixotropic agent includes a compound represented by General Formula (1). In General Formula (1), R11 and R12 each independently represent a hydrocarbon group which has 1 to 3 carbon atoms and may have a substituent, or a single bond. R21 and R22 each independently represent a hydrocarbon group which has 7 to 29 carbon atoms and may have a substituent. R13 represents a substituent. n represents an integer of 0 to 4.

    ADDITIVELY MANUFACTURED JOINED PARTS
    3.
    发明公开

    公开(公告)号:US20240058889A1

    公开(公告)日:2024-02-22

    申请号:US17891345

    申请日:2022-08-19

    摘要: A joined part comprises a first portion and a second portion. The first portion comprises a guide slot at least partially defined by a porous structure. A joint material is disposed within the porous structure. The second portion is disposed within the guide slot and contacts the porous structure and the joint material disposed therein to form an interfacial joint between the first portion and the second portion. A method of manufacturing the joined part includes disposing a joint material into a porous structure of a guide slot of a first portion, inserting a second portion into the guide slot, and contacting the porous structure and the joint material disposed therein to form an interfacial joint between the first portion and the second portion.

    Solder Material and Solder Material Production Method

    公开(公告)号:US20240024991A1

    公开(公告)日:2024-01-25

    申请号:US18039090

    申请日:2021-12-22

    IPC分类号: B23K35/36 B23K35/02

    CPC分类号: B23K35/3613 B23K35/025

    摘要: A method of producing a solder material is provided. The method includes mixing a flux containing a solvent, a rosin-based resin, and an activator, with aggregated cellulose. The aggregated cellulose includes massive cellulose in which fibrous cellulose having a length of from 1 μm or more to less than 1 mm, and fibrous cellulose having a length of from 1 nm or more to less than 1 μm. The resulting mixture is mixed with a solder alloy to produce a solder material.

    Flux
    5.
    发明公开
    Flux 审中-公开

    公开(公告)号:US20240001492A1

    公开(公告)日:2024-01-04

    申请号:US18039077

    申请日:2021-12-22

    IPC分类号: B23K35/36 B23K35/362

    CPC分类号: B23K35/3613 B23K35/362

    摘要: An aggregated cellulose is provided that includes massive cellulose and fibrous cellulose mixed together. The massive cellulose is fibrous and has a length of from 1 μm or more to less than 1 mm. The fibrous cellulose has a length of from 1 nm or more to less than 1 μm. The aggregated cellulose can contain from 400 ppm or more to 10,000 ppm or less of the massive cellulose. The aggregated cellulose can contain a solvent, a rosin-based resin, and an activator.