Abstract
To improve the pot life of one-part in-house anisotropic conductive paste (ACP) formulations, 2-methyl imidazole curing accelerator powders were encapsulated with five agents. Through measuring the melting point of the five agents using DSC, it was confirmed that a encapsulation process with liquid-state agents is possible. Viscosity of ACP formulations containing the encapsulated imidazole powders was measured as a function of storage time from viscosity measurements. As a result, pot life of the formulations containing imidazole powders encapsulated with stearic acid and carnauba wax was improved, and these formulations indicated similar curing behaviors to a basic formulation containing rare imidazole. However, the bondlines made of these formulations exhibited low average shear strength values of about 37% level in comparison with the basic formulation.
| Translated title of the contribution | Encapsulation of an 2-methyl Imidazole Curing Accelerator for the Extended Pot Life of Anisotropic Conductive Pastes (ACPs) |
|---|---|
| Original language | Korean |
| Pages (from-to) | 41-48 |
| Number of pages | 8 |
| Journal | 마이크로전자 및 패키징학회지 |
| Volume | 17 |
| Issue number | 4 |
| State | Published - Dec 2010 |