VISCOSITY BEHAVIOR PREDICTION METHOD OF THERMOSETTING RESIN, SIMULATION SOFTWARE, MANUFACTURING METHOD OF THERMOSETTING RESIN, AND UNDERFILL MANUFACTURED BY THIS MANUFACTURING METHOD

• Main Authors: SATO TOSHIYUKI, HOSHIYAMA MASAAKI, HAYASHIGAKI ARATA, HOCCHI TOYOKAZU, ENOMOTO TOSHIAKI
• Format: Patent
• Language: English; Japanese
• Published: 13.11.2014
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; SEMICONDUCTOR DEVICES; TESTING

PROBLEM TO BE SOLVED: To provide a viscosity behavior prediction method of thermosetting resin, predicting the viscosity behavior of thermosetting resin, preventing an underfill void from being generated, and achieving good solder connection.SOLUTION: A viscosity behavior prediction method includes: a reaction rate measurement step and a viscosity behavior measurement step of respectively measuring heat quantity peak and viscosity behavior of thermosetting resin under three types or more of rates of temperature increase; a reaction rate fitting step of fitting measurement data for each of the rates of temperature increase obtained by the reaction rate measurement step in a Kamal model to obtain a fitting curve; a viscosity behavior fitting step of fitting a parameter in the Kamal model and measurement data for each of the rates of temperature increase obtained by the viscosity behavior measurement step, in a Castro-Macosko model to obtain a fitting curve; and a virtual viscosity behavior calculation step of calculating by simulation a virtual viscosity behavior of the thermosetting resin at any rate of temperature increase based on each fitting curve for each of the rates of temperature increase obtained by the viscosity behavior fitting step. 【課題】熱硬化性樹脂の粘度挙動を予測することができ、アンダーフィルのボイド発生を抑えつつ、良好な半田接続が得られる、熱硬化性樹脂の粘度挙動予測方法を提供する。【解決手段】３種以上の昇温速度の下で熱硬化性樹脂の発熱量ピーク及び粘度挙動をそれぞれ測定する反応速度測定工程及び粘度挙動測定工程と、反応速度測定工程で得られた昇温速度別の測定データをＫａｍａｌモデル式にフィッティングしてフィッティングカーブを得る反応速度フィッティング工程と、Ｋａｍａｌモデル式のパラメータ及び粘度挙動測定工程で得られた昇温速度別の測定データを、Ｃａｓｔｒｏ−Ｍａｃｏｓｋｏモデル式にフィッティングしてフィッティングカーブを得る粘度挙動フィッティング工程と、粘度挙動フィッティング工程で得られた昇温速度別の各フィッティングカーブに基づき、任意の昇温速度における熱硬化性樹脂の仮想粘度挙動をシミュレーションで算出する仮想粘度挙動算出工程と、を含む。【選択図】図８