Invention Grant
- Patent Title: Methods and apparatus for scribe street probe pads with reduced die chipping during wafer dicing
-
Application No.: US17011982Application Date: 2020-09-03
-
Publication No.: US11515266B2Publication Date: 2022-11-29
- Inventor: Ricky Alan Jackson , Erika Lynn Mazotti , Sudtida Lavangkul
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Charles A. Brill; Frank D. Cimino
- Main IPC: H01L23/544
- IPC: H01L23/544 ; H01L23/00 ; H01L21/66 ; H01L21/78 ; H01L23/58 ; H01L23/31

Abstract:
An example apparatus includes a semiconductor wafer with a plurality of probe pads each formed centered in scribe streets and intersected by saw kerf lanes. Each probe pad includes a plurality of lower level conductor layers arranged in lower level conductor frames, a plurality of lower level vias extending vertically through lower level insulator layers and electrically coupling the lower level conductor frames; a plurality of upper level conductor layers, each forming two portions on two outer edges of the probe pad, the two portions aligned with, spaced from, and on opposite sides of the saw kerf lane, the coverage of the upper level conductor layers being less than about twenty percent; and a plurality of upper level vias extending vertically through upper level insulator layers and coupling the upper level conductor layers electrically to one another and to the lower level conductor layers. Methods are disclosed.
Public/Granted literature
- US20210217706A1 METHODS AND APPARATUS FOR SCRIBE STREET PROBE PADS WITH REDUCED DIE CHIPPING DURING WAFER DICING Public/Granted day:2021-07-15
Information query
IPC分类: