Patent ID: 9700901
Date: 2017-07-11
CPC Classifications: B05B,B05C,B23K,B32B,C23C,H01L

Claim:
1. A method of making an organic vapor jet printing device, comprising the steps of: (a) providing a nozzle plate having a fluid inlet side and a mounting plate having a fluid outlet side; (b) depositing an adhesion layer over at least one of said inlet or outlet sides; (c) depositing a diffusion barrier layer over at least one of said inlet or outlet sides; (d) depositing a layer of noble metal over at least one of said inlet or outlet sides; (e) depositing a layer of metal capable of forming a eutectic alloy with the noble metal over; and (f) forming said eutectic alloy between said inlet and outlet sides with said inlet and outlet sides facing each other, wherein the diffusion barrier layer and the adhesion layer are located between the eutectic alloy and at least one of said plates, a diffusion rate of at least one of the metals deposited in steps (d) and (e) with the diffusion barrier layer being lower than a diffusion rate with said at least one of said plates so that the diffusion barrier layer substantially prevents interdiffusion of the eutectic alloy with said at least one of said plates, and wherein the adhesion layer is formed from a material different from the diffusion barrier layer, the solder joint, and said at least one of said plates.