公开(公告)号：US20040107902A1

公开(公告)日：2004-06-10

申请号：US10643567

申请日：2003-08-19

Applicant: Micron Technology, Inc.

Inventor： Tongbi Jiang ,  Chad A. Cobbley ,  John VanNortwick

IPC: B05C005/00 ,  B05C011/11

CPC classification number: B41C1/14 ,  B41N1/242 ,  H01L2224/4826 ,  H05K3/1225 ,  Y10S438/945

Abstract: A method and apparatus for improved stencil/screen print quality is disclosed. The stencil or screen assists in application of a printable material onto a substrate, such as an adhesive to a semiconductor die of a semiconductor wafer during a lead-on-chip (LOC) packaging process. In one embodiment, the stencil includes a coating applied to at least one surface of a pattern of the stencil or screen to retard running of the printable material onto the surface. In another embodiment, the stencil or screen includes a second coating applied to at least one other surface of the pattern to promote spreading of the printable material onto the substrate.

Abstract translation: 公开了一种用于改进模板/丝网印刷质量的方法和装置。 在片上（LOC）包装过程中，模板或屏幕有助于将可印刷材料施加到基底上，例如对半导体晶片的半导体管芯的粘合剂。 在一个实施例中，模板包括施加到模板或筛网的图案的至少一个表面上的涂层，以阻止可印刷材料在表面上的运行。 在另一个实施例中，模板或丝网包括施加到图案的至少一个其他表面的第二涂层，以促进可印刷材料在基底上的铺展。

公开(公告)号：US20040089171A1

公开(公告)日：2004-05-13

申请号：US10701140

申请日：2003-11-04

Applicant: Micron Technology, Inc.

Inventor： Tongbi Jiang ,  Chad A. Cobbley ,  John VanNortwick

IPC: B41C001/14

CPC classification number: B41C1/14 ,  B41N1/242 ,  H01L2224/4826 ,  H05K3/1225 ,  Y10S438/945

Abstract: A method and apparatus for improved stencil/screen print quality is disclosed. The stencil or screen assists in application of a printable material onto a substrate, such as an adhesive to a semiconductor die of a semiconductor wafer during a lead-on-chip (LOC) packaging process. In one embodiment, the stencil includes a coating applied to at least one surface of a pattern of the stencil or screen to retard running of the printable material onto the surface. In another embodiment, the stencil or screen includes a second coating applied to at least one other surface of the pattern to promote spreading of the printable material onto the substrate.

Abstract translation: 公开了一种用于改进模板/丝网印刷质量的方法和装置。 在片上（LOC）包装过程中，模板或屏幕有助于将可印刷材料施加到基底上，例如对半导体晶片的半导体管芯的粘合剂。 在一个实施例中，模板包括施加到模板或筛网的图案的至少一个表面上的涂层，以阻止可印刷材料运动到表面上。 在另一个实施例中，模板或丝网包括施加到图案的至少一个其他表面的第二涂层，以促进可印刷材料在基底上的铺展。