Patents by Inventor Yuta SAGAWA

Yuta SAGAWA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9953946
    Abstract: A die-bonding layer formation film to be used for fixing a processed product to an adherend, includes an adhesive layer, wherein, the storage elastic modulus has a local minimum value at a temperature within a range of 80° C. to 150° C., wherein the adhesive layer has a shear strength to a peeling strength test substrate of 20 N/2 mm? [N/(2 mm×2 mm)] or more and 50 N/2 mm? [N/(2 mm×2 mm)] or less, wherein the shear strength is measured after the processed product is placed above the peeling strength test substrate via the die-bonding layer formation film and the die-bonding layer formation film on the peeling strength test substrate is heated at 175° C. for 1 hour and then further maintained under an environment of 250° C. for 30 seconds. Bubbles (voids) are unlikely to grow at the boundary between the adhesive layer and an adherend even when subjected to thermal history.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: April 24, 2018
    Assignee: LINTEC CORPORATION
    Inventors: Yuichiro Azuma, Hideaki Suzuki, Naoya Saiki, Yuta Sagawa
  • Publication number: 20170005062
    Abstract: A die-bonding layer formation film to be used for fixing a processed product to an adherend, includes an adhesive layer, wherein, the storage elastic modulus has a local minimum value at a temperature within a range of 80° C. to 150° C., wherein the adhesive layer has a shear strength to a peeling strength test substrate of 20 N/2 mm? or more and 50 N/2 mm? or less, wherein the shear strength is measured after the processed product is placed above the peeling strength test substrate via the die-bonding layer formation film and the die-bonding layer formation film on the peeling strength test substrate is heated at 175° C. for 1 hour and then further maintained under an environment of 250° C. for 30 seconds. Bubbles (voids) are unlikely to grow at the boundary between the adhesive layer and an adherend even when subjected to thermal history.
    Type: Application
    Filed: March 16, 2015
    Publication date: January 5, 2017
    Inventors: Yuichiro AZUMA, Hideaki SUZUKI, Naoya SAIKI, Yuta SAGAWA